multiBand.py

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# This file is part of pipe_tasks.
#
# Developed for the LSST Data Management System.
# This product includes software developed by the LSST Project
# (https://www.lsst.org).
# See the COPYRIGHT file at the top-level directory of this distribution
# for details of code ownership.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
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# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
__all__ = ["DetectCoaddSourcesConfig", "DetectCoaddSourcesTask"]
 
from lsst.pipe.base import (Struct, PipelineTask, PipelineTaskConfig, PipelineTaskConnections)
import lsst.pipe.base.connectionTypes as cT
from lsst.pex.config import Field, ConfigurableField, ChoiceField
from lsst.meas.algorithms import DynamicDetectionTask, ReferenceObjectLoader, ScaleVarianceTask, \
    SetPrimaryFlagsTask
from lsst.meas.base import (
    SingleFrameMeasurementTask,
    ApplyApCorrTask,
    CatalogCalculationTask,
    SkyMapIdGeneratorConfig,
)
from lsst.meas.extensions.scarlet.io import updateCatalogFootprints
from lsst.meas.astrom import DirectMatchTask, denormalizeMatches
from lsst.pipe.tasks.propagateSourceFlags import PropagateSourceFlagsTask
import lsst.afw.table as afwTable
import lsst.afw.math as afwMath
from lsst.daf.base import PropertyList
from lsst.skymap import BaseSkyMap
 
# NOTE: these imports are a convenience so multiband users only have to import this file.
from .mergeDetections import MergeDetectionsConfig, MergeDetectionsTask  # noqa: F401
from .mergeMeasurements import MergeMeasurementsConfig, MergeMeasurementsTask  # noqa: F401
from .multiBandUtils import CullPeaksConfig  # noqa: F401
from .deblendCoaddSourcesPipeline import DeblendCoaddSourcesSingleConfig  # noqa: F401
from .deblendCoaddSourcesPipeline import DeblendCoaddSourcesSingleTask  # noqa: F401
from .deblendCoaddSourcesPipeline import DeblendCoaddSourcesMultiConfig  # noqa: F401
from .deblendCoaddSourcesPipeline import DeblendCoaddSourcesMultiTask  # noqa: F401
 
 
"""
New set types:
* deepCoadd_det: detections from what used to be processCoadd (tract, patch, filter)
* deepCoadd_mergeDet: merged detections (tract, patch)
* deepCoadd_meas: measurements of merged detections (tract, patch, filter)
* deepCoadd_ref: reference sources (tract, patch)
All of these have associated *_schema catalogs that require no data ID and hold no records.
 
In addition, we have a schema-only dataset, which saves the schema for the PeakRecords in
the mergeDet, meas, and ref dataset Footprints:
* deepCoadd_peak_schema
"""
 
 
 
class DetectCoaddSourcesConnections(PipelineTaskConnections,
                                    dimensions=("tract", "patch", "band", "skymap"),
                                    defaultTemplates={"inputCoaddName": "deep", "outputCoaddName": "deep"}):
    detectionSchema = cT.InitOutput(
        doc="Schema of the detection catalog",
        name="{outputCoaddName}Coadd_det_schema",
        storageClass="SourceCatalog",
    )
    exposure = cT.Input(
        doc="Exposure on which detections are to be performed",
        name="{inputCoaddName}Coadd",
        storageClass="ExposureF",
        dimensions=("tract", "patch", "band", "skymap")
    )
    outputBackgrounds = cT.Output(
        doc="Output Backgrounds used in detection",
        name="{outputCoaddName}Coadd_calexp_background",
        storageClass="Background",
        dimensions=("tract", "patch", "band", "skymap")
    )
    outputSources = cT.Output(
        doc="Detected sources catalog",
        name="{outputCoaddName}Coadd_det",
        storageClass="SourceCatalog",
        dimensions=("tract", "patch", "band", "skymap")
    )
    outputExposure = cT.Output(
        doc="Exposure post detection",
        name="{outputCoaddName}Coadd_calexp",
        storageClass="ExposureF",
        dimensions=("tract", "patch", "band", "skymap")
    )
 
 
class DetectCoaddSourcesConfig(PipelineTaskConfig, pipelineConnections=DetectCoaddSourcesConnections):
    """Configuration parameters for the DetectCoaddSourcesTask
    """
 
    doScaleVariance = Field(dtype=bool, default=True, doc="Scale variance plane using empirical noise?")
    scaleVariance = ConfigurableField(target=ScaleVarianceTask, doc="Variance rescaling")
    detection = ConfigurableField(target=DynamicDetectionTask, doc="Source detection")
    coaddName = Field(dtype=str, default="deep", doc="Name of coadd")
    hasFakes = Field(
        dtype=bool,
        default=False,
        doc="Should be set to True if fake sources have been inserted into the input data.",
    )
    idGenerator = SkyMapIdGeneratorConfig.make_field()
 
    def setDefaults(self):
        super().setDefaults()
        self.detection.thresholdType = "pixel_stdev"
        self.detection.isotropicGrow = True
        # Coadds are made from background-subtracted CCDs, so any background subtraction should be very basic
        self.detection.reEstimateBackground = False
        self.detection.background.useApprox = False
        self.detection.background.binSize = 4096
        self.detection.background.undersampleStyle = 'REDUCE_INTERP_ORDER'
        self.detection.doTempWideBackground = True  # Suppress large footprints that overwhelm the deblender
        # Include band in packed data IDs that go into object IDs (None -> "as
        # many bands as are defined", rather than the default of zero).
        self.idGenerator.packer.n_bands = None
 
 
class DetectCoaddSourcesTask(PipelineTask):
    """Detect sources on a single filter coadd.
 
    Coadding individual visits requires each exposure to be warped. This
    introduces covariance in the noise properties across pixels. Before
    detection, we correct the coadd variance by scaling the variance plane in
    the coadd to match the observed variance. This is an approximate
    approach -- strictly, we should propagate the full covariance matrix --
    but it is simple and works well in practice.
 
    After scaling the variance plane, we detect sources and generate footprints
    by delegating to the @ref SourceDetectionTask_ "detection" subtask.
 
    DetectCoaddSourcesTask is meant to be run after assembling a coadded image
    in a given band. The purpose of the task is to update the background,
    detect all sources in a single band and generate a set of parent
    footprints. Subsequent tasks in the multi-band processing procedure will
    merge sources across bands and, eventually, perform forced photometry.
 
    Parameters
    ----------
    schema : `lsst.afw.table.Schema`, optional
        Initial schema for the output catalog, modified-in place to include all
        fields set by this task.  If None, the source minimal schema will be used.
    **kwargs
        Additional keyword arguments.
    """
 
    _DefaultName = "detectCoaddSources"
    ConfigClass = DetectCoaddSourcesConfig
 
    def __init__(self, schema=None, **kwargs):
        # N.B. Super is used here to handle the multiple inheritance of PipelineTasks, the init tree
        # call structure has been reviewed carefully to be sure super will work as intended.
        super().__init__(**kwargs)
        if schema is None:
            schema = afwTable.SourceTable.makeMinimalSchema()
        self.schema = schema
        self.makeSubtask("detection", schema=self.schema)
        if self.config.doScaleVariance:
            self.makeSubtask("scaleVariance")
 
        self.detectionSchema = afwTable.SourceCatalog(self.schema)
 
    def runQuantum(self, butlerQC, inputRefs, outputRefs):
        inputs = butlerQC.get(inputRefs)
        idGenerator = self.config.idGenerator.apply(butlerQC.quantum.dataId)
        inputs["idFactory"] = idGenerator.make_table_id_factory()
        inputs["expId"] = idGenerator.catalog_id
        outputs = self.run(**inputs)
        butlerQC.put(outputs, outputRefs)
 
    def run(self, exposure, idFactory, expId):
        """Run detection on an exposure.
 
        First scale the variance plane to match the observed variance
        using ``ScaleVarianceTask``. Then invoke the ``SourceDetectionTask_`` "detection" subtask to
        detect sources.
 
        Parameters
        ----------
        exposure : `lsst.afw.image.Exposure`
            Exposure on which to detect (may be backround-subtracted and scaled,
            depending on configuration).
        idFactory : `lsst.afw.table.IdFactory`
            IdFactory to set source identifiers.
        expId : `int`
            Exposure identifier (integer) for RNG seed.
 
        Returns
        -------
        result : `lsst.pipe.base.Struct`
            Results as a struct with attributes:
 
            ``sources``
                Catalog of detections (`lsst.afw.table.SourceCatalog`).
            ``backgrounds``
                List of backgrounds (`list`).
        """
        if self.config.doScaleVariance:
            varScale = self.scaleVariance.run(exposure.maskedImage)
            exposure.getMetadata().add("VARIANCE_SCALE", varScale)
        backgrounds = afwMath.BackgroundList()
        table = afwTable.SourceTable.make(self.schema, idFactory)
        detections = self.detection.run(table, exposure, expId=expId)
        sources = detections.sources
        if hasattr(detections, "background") and detections.background:
            for bg in detections.background:
                backgrounds.append(bg)
        return Struct(outputSources=sources, outputBackgrounds=backgrounds, outputExposure=exposure)
 
 
class MeasureMergedCoaddSourcesConnections(PipelineTaskConnections,
                                           dimensions=("tract", "patch", "band", "skymap"),
                                           defaultTemplates={"inputCoaddName": "deep",
                                                             "outputCoaddName": "deep",
                                                             "deblendedCatalog": "deblendedFlux"}):
    inputSchema = cT.InitInput(
        doc="Input schema for measure merged task produced by a deblender or detection task",
        name="{inputCoaddName}Coadd_deblendedFlux_schema",
        storageClass="SourceCatalog"
    )
    outputSchema = cT.InitOutput(
        doc="Output schema after all new fields are added by task",
        name="{inputCoaddName}Coadd_meas_schema",
        storageClass="SourceCatalog"
    )
    refCat = cT.PrerequisiteInput(
        doc="Reference catalog used to match measured sources against known sources",
        name="ref_cat",
        storageClass="SimpleCatalog",
        dimensions=("skypix",),
        deferLoad=True,
        multiple=True
    )
    exposure = cT.Input(
        doc="Input coadd image",
        name="{inputCoaddName}Coadd_calexp",
        storageClass="ExposureF",
        dimensions=("tract", "patch", "band", "skymap")
    )
    skyMap = cT.Input(
        doc="SkyMap to use in processing",
        name=BaseSkyMap.SKYMAP_DATASET_TYPE_NAME,
        storageClass="SkyMap",
        dimensions=("skymap",),
    )
    visitCatalogs = cT.Input(
        doc="Source catalogs for visits which overlap input tract, patch, band. Will be "
            "further filtered in the task for the purpose of propagating flags from image calibration "
            "and characterization to coadd objects. Only used in legacy PropagateVisitFlagsTask.",
        name="src",
        dimensions=("instrument", "visit", "detector"),
        storageClass="SourceCatalog",
        multiple=True
    )
    sourceTableHandles = cT.Input(
        doc=("Source tables that are derived from the ``CalibrateTask`` sources. "
             "These tables contain astrometry and photometry flags, and optionally "
             "PSF flags."),
        name="sourceTable_visit",
        storageClass="DataFrame",
        dimensions=("instrument", "visit"),
        multiple=True,
        deferLoad=True,
    )
    finalizedSourceTableHandles = cT.Input(
        doc=("Finalized source tables from ``FinalizeCalibrationTask``. These "
             "tables contain PSF flags from the finalized PSF estimation."),
        name="finalized_src_table",
        storageClass="DataFrame",
        dimensions=("instrument", "visit"),
        multiple=True,
        deferLoad=True,
    )
    inputCatalog = cT.Input(
        doc=("Name of the input catalog to use."
             "If the single band deblender was used this should be 'deblendedFlux."
             "If the multi-band deblender was used this should be 'deblendedModel, "
             "or deblendedFlux if the multiband deblender was configured to output "
             "deblended flux catalogs. If no deblending was performed this should "
             "be 'mergeDet'"),
        name="{inputCoaddName}Coadd_{deblendedCatalog}",
        storageClass="SourceCatalog",
        dimensions=("tract", "patch", "band", "skymap"),
    )
    scarletCatalog = cT.Input(
        doc="Catalogs produced by multiband deblending",
        name="{inputCoaddName}Coadd_deblendedCatalog",
        storageClass="SourceCatalog",
        dimensions=("tract", "patch", "skymap"),
    )
    scarletModels = cT.Input(
        doc="Multiband scarlet models produced by the deblender",
        name="{inputCoaddName}Coadd_scarletModelData",
        storageClass="ScarletModelData",
        dimensions=("tract", "patch", "skymap"),
    )
    outputSources = cT.Output(
        doc="Source catalog containing all the measurement information generated in this task",
        name="{outputCoaddName}Coadd_meas",
        dimensions=("tract", "patch", "band", "skymap"),
        storageClass="SourceCatalog",
    )
    matchResult = cT.Output(
        doc="Match catalog produced by configured matcher, optional on doMatchSources",
        name="{outputCoaddName}Coadd_measMatch",
        dimensions=("tract", "patch", "band", "skymap"),
        storageClass="Catalog",
    )
    denormMatches = cT.Output(
        doc="Denormalized Match catalog produced by configured matcher, optional on "
            "doWriteMatchesDenormalized",
        name="{outputCoaddName}Coadd_measMatchFull",
        dimensions=("tract", "patch", "band", "skymap"),
        storageClass="Catalog",
    )
 
    def __init__(self, *, config=None):
        super().__init__(config=config)
        if config.doPropagateFlags is False:
            self.inputs -= set(("visitCatalogs",))
            self.inputs -= set(("sourceTableHandles",))
            self.inputs -= set(("finalizedSourceTableHandles",))
        elif config.propagateFlags.target == PropagateSourceFlagsTask:
            # New PropagateSourceFlagsTask does not use visitCatalogs.
            self.inputs -= set(("visitCatalogs",))
            # Check for types of flags required.
            if not config.propagateFlags.source_flags:
                self.inputs -= set(("sourceTableHandles",))
            if not config.propagateFlags.finalized_source_flags:
                self.inputs -= set(("finalizedSourceTableHandles",))
        else:
            # Deprecated PropagateVisitFlagsTask uses visitCatalogs.
            self.inputs -= set(("sourceTableHandles",))
            self.inputs -= set(("finalizedSourceTableHandles",))
 
        if config.inputCatalog == "deblendedCatalog":
            self.inputs -= set(("inputCatalog",))
 
            if not config.doAddFootprints:
                self.inputs -= set(("scarletModels",))
        else:
            self.inputs -= set(("deblendedCatalog"))
            self.inputs -= set(("scarletModels",))
 
        if config.doMatchSources is False:
            self.prerequisiteInputs -= set(("refCat",))
            self.outputs -= set(("matchResult",))
 
        if config.doWriteMatchesDenormalized is False:
            self.outputs -= set(("denormMatches",))
 
 
class MeasureMergedCoaddSourcesConfig(PipelineTaskConfig,
                                      pipelineConnections=MeasureMergedCoaddSourcesConnections):
    """Configuration parameters for the MeasureMergedCoaddSourcesTask
    """
    inputCatalog = ChoiceField(
        dtype=str,
        default="deblendedCatalog",
        allowed={
            "deblendedCatalog": "Output catalog from ScarletDeblendTask",
            "deblendedFlux": "Output catalog from SourceDeblendTask",
            "mergeDet": "The merged detections before deblending."
        },
        doc="The name of the input catalog.",
    )
    doAddFootprints = Field(dtype=bool,
                            default=True,
                            doc="Whether or not to add footprints to the input catalog from scarlet models. "
                                "This should be true whenever using the multi-band deblender, "
                                "otherwise this should be False.")
    doConserveFlux = Field(dtype=bool, default=True,
                           doc="Whether to use the deblender models as templates to re-distribute the flux "
                               "from the 'exposure' (True), or to perform measurements on the deblender "
                               "model footprints.")
    doStripFootprints = Field(dtype=bool, default=True,
                              doc="Whether to strip footprints from the output catalog before "
                                  "saving to disk. "
                                  "This is usually done when using scarlet models to save disk space.")
    measurement = ConfigurableField(target=SingleFrameMeasurementTask, doc="Source measurement")
    setPrimaryFlags = ConfigurableField(target=SetPrimaryFlagsTask, doc="Set flags for primary tract/patch")
    doPropagateFlags = Field(
        dtype=bool, default=True,
        doc="Whether to match sources to CCD catalogs to propagate flags (to e.g. identify PSF stars)"
    )
    propagateFlags = ConfigurableField(target=PropagateSourceFlagsTask, doc="Propagate source flags to coadd")
    doMatchSources = Field(dtype=bool, default=True, doc="Match sources to reference catalog?")
    match = ConfigurableField(target=DirectMatchTask, doc="Matching to reference catalog")
    doWriteMatchesDenormalized = Field(
        dtype=bool,
        default=False,
        doc=("Write reference matches in denormalized format? "
             "This format uses more disk space, but is more convenient to read."),
    )
    coaddName = Field(dtype=str, default="deep", doc="Name of coadd")
    psfCache = Field(dtype=int, default=100, doc="Size of psfCache")
    checkUnitsParseStrict = Field(
        doc="Strictness of Astropy unit compatibility check, can be 'raise', 'warn' or 'silent'",
        dtype=str,
        default="raise",
    )
    doApCorr = Field(
        dtype=bool,
        default=True,
        doc="Apply aperture corrections"
    )
    applyApCorr = ConfigurableField(
        target=ApplyApCorrTask,
        doc="Subtask to apply aperture corrections"
    )
    doRunCatalogCalculation = Field(
        dtype=bool,
        default=True,
        doc='Run catalogCalculation task'
    )
    catalogCalculation = ConfigurableField(
        target=CatalogCalculationTask,
        doc="Subtask to run catalogCalculation plugins on catalog"
    )
 
    hasFakes = Field(
        dtype=bool,
        default=False,
        doc="Should be set to True if fake sources have been inserted into the input data."
    )
    idGenerator = SkyMapIdGeneratorConfig.make_field()
 
    @property
    def refObjLoader(self):
        return self.match.refObjLoader
 
    def setDefaults(self):
        super().setDefaults()
        self.measurement.plugins.names |= ['base_InputCount',
                                           'base_Variance',
                                           'base_LocalPhotoCalib',
                                           'base_LocalWcs']
 
        # TODO: Remove STREAK in DM-44658, streak masking to happen only in ip_diffim
        self.measurement.plugins['base_PixelFlags'].masksFpAnywhere = ['CLIPPED', 'SENSOR_EDGE',
                                                                       'INEXACT_PSF', 'STREAK']
        self.measurement.plugins['base_PixelFlags'].masksFpCenter = ['CLIPPED', 'SENSOR_EDGE',
                                                                     'INEXACT_PSF', 'STREAK']
 
    def validate(self):
        super().validate()
 
        if not self.doMatchSources and self.doWriteMatchesDenormalized:
            raise ValueError("Cannot set doWriteMatchesDenormalized if doMatchSources is False.")
 
 
class MeasureMergedCoaddSourcesTask(PipelineTask):
    """Deblend sources from main catalog in each coadd seperately and measure.
 
    Use peaks and footprints from a master catalog to perform deblending and
    measurement in each coadd.
 
    Given a master input catalog of sources (peaks and footprints) or deblender
    outputs(including a HeavyFootprint in each band), measure each source on
    the coadd. Repeating this procedure with the same master catalog across
    multiple coadds will generate a consistent set of child sources.
 
    The deblender retains all peaks and deblends any missing peaks (dropouts in
    that band) as PSFs. Source properties are measured and the @c is-primary
    flag (indicating sources with no children) is set. Visit flags are
    propagated to the coadd sources.
 
    Optionally, we can match the coadd sources to an external reference
    catalog.
 
    After MeasureMergedCoaddSourcesTask has been run on multiple coadds, we
    have a set of per-band catalogs. The next stage in the multi-band
    processing procedure will merge these measurements into a suitable catalog
    for driving forced photometry.
 
    Parameters
    ----------
    schema : ``lsst.afw.table.Schema`, optional
        The schema of the merged detection catalog used as input to this one.
    peakSchema : ``lsst.afw.table.Schema`, optional
        The schema of the PeakRecords in the Footprints in the merged detection catalog.
    refObjLoader : `lsst.meas.algorithms.ReferenceObjectLoader`, optional
        An instance of ReferenceObjectLoader that supplies an external reference
        catalog. May be None if the loader can be constructed from the butler argument or all steps
        requiring a reference catalog are disabled.
    initInputs : `dict`, optional
        Dictionary that can contain a key ``inputSchema`` containing the
        input schema. If present will override the value of ``schema``.
    **kwargs
        Additional keyword arguments.
    """
 
    _DefaultName = "measureCoaddSources"
    ConfigClass = MeasureMergedCoaddSourcesConfig
 
    def __init__(self, schema=None, peakSchema=None, refObjLoader=None, initInputs=None,
                 **kwargs):
        super().__init__(**kwargs)
        self.deblended = self.config.inputCatalog.startswith("deblended")
        self.inputCatalog = "Coadd_" + self.config.inputCatalog
        if initInputs is not None:
            schema = initInputs['inputSchema'].schema
        if schema is None:
            raise ValueError("Schema must be defined.")
        self.schemaMapper = afwTable.SchemaMapper(schema)
        self.schemaMapper.addMinimalSchema(schema)
        self.schema = self.schemaMapper.getOutputSchema()
        afwTable.CoordKey.addErrorFields(self.schema)
        self.algMetadata = PropertyList()
        self.makeSubtask("measurement", schema=self.schema, algMetadata=self.algMetadata)
        self.makeSubtask("setPrimaryFlags", schema=self.schema)
        if self.config.doMatchSources:
            self.makeSubtask("match", refObjLoader=refObjLoader)
        if self.config.doPropagateFlags:
            self.makeSubtask("propagateFlags", schema=self.schema)
        self.schema.checkUnits(parse_strict=self.config.checkUnitsParseStrict)
        if self.config.doApCorr:
            self.makeSubtask("applyApCorr", schema=self.schema)
        if self.config.doRunCatalogCalculation:
            self.makeSubtask("catalogCalculation", schema=self.schema)
 
        self.outputSchema = afwTable.SourceCatalog(self.schema)
 
    def runQuantum(self, butlerQC, inputRefs, outputRefs):
        inputs = butlerQC.get(inputRefs)
 
        if self.config.doMatchSources:
            refObjLoader = ReferenceObjectLoader([ref.datasetRef.dataId for ref in inputRefs.refCat],
                                                 inputs.pop('refCat'),
                                                 name=self.config.connections.refCat,
                                                 config=self.config.refObjLoader,
                                                 log=self.log)
            self.match.setRefObjLoader(refObjLoader)
 
        # Set psfcache
        # move this to run after gen2 deprecation
        inputs['exposure'].getPsf().setCacheCapacity(self.config.psfCache)
 
        # Get unique integer ID for IdFactory and RNG seeds; only the latter
        # should really be used as the IDs all come from the input catalog.
        idGenerator = self.config.idGenerator.apply(butlerQC.quantum.dataId)
        inputs['exposureId'] = idGenerator.catalog_id
 
        # Transform inputCatalog
        table = afwTable.SourceTable.make(self.schema, idGenerator.make_table_id_factory())
        sources = afwTable.SourceCatalog(table)
        # Load the correct input catalog
        if "scarletCatalog" in inputs:
            inputCatalog = inputs.pop("scarletCatalog")
            catalogRef = inputRefs.scarletCatalog
        else:
            inputCatalog = inputs.pop("inputCatalog")
            catalogRef = inputRefs.inputCatalog
        sources.extend(inputCatalog, self.schemaMapper)
        del inputCatalog
        # Add the HeavyFootprints to the deblended sources
        if self.config.doAddFootprints:
            modelData = inputs.pop('scarletModels')
            if self.config.doConserveFlux:
                imageForRedistribution = inputs['exposure']
            else:
                imageForRedistribution = None
            updateCatalogFootprints(
                modelData=modelData,
                catalog=sources,
                band=inputRefs.exposure.dataId["band"],
                imageForRedistribution=imageForRedistribution,
                removeScarletData=True,
                updateFluxColumns=True,
            )
        table = sources.getTable()
        table.setMetadata(self.algMetadata)  # Capture algorithm metadata to write out to the source catalog.
        inputs['sources'] = sources
 
        skyMap = inputs.pop('skyMap')
        tractNumber = catalogRef.dataId['tract']
        tractInfo = skyMap[tractNumber]
        patchInfo = tractInfo.getPatchInfo(catalogRef.dataId['patch'])
        skyInfo = Struct(
            skyMap=skyMap,
            tractInfo=tractInfo,
            patchInfo=patchInfo,
            wcs=tractInfo.getWcs(),
            bbox=patchInfo.getOuterBBox()
        )
        inputs['skyInfo'] = skyInfo
 
        if self.config.doPropagateFlags:
            if self.config.propagateFlags.target == PropagateSourceFlagsTask:
                # New version
                ccdInputs = inputs["exposure"].getInfo().getCoaddInputs().ccds
                inputs["ccdInputs"] = ccdInputs
 
                if "sourceTableHandles" in inputs:
                    sourceTableHandles = inputs.pop("sourceTableHandles")
                    sourceTableHandleDict = {handle.dataId["visit"]: handle
                                             for handle in sourceTableHandles}
                    inputs["sourceTableHandleDict"] = sourceTableHandleDict
                if "finalizedSourceTableHandles" in inputs:
                    finalizedSourceTableHandles = inputs.pop("finalizedSourceTableHandles")
                    finalizedSourceTableHandleDict = {handle.dataId["visit"]: handle
                                                      for handle in finalizedSourceTableHandles}
                    inputs["finalizedSourceTableHandleDict"] = finalizedSourceTableHandleDict
            else:
                # Deprecated legacy version
                # Filter out any visit catalog that is not coadd inputs
                ccdInputs = inputs['exposure'].getInfo().getCoaddInputs().ccds
                visitKey = ccdInputs.schema.find("visit").key
                ccdKey = ccdInputs.schema.find("ccd").key
                inputVisitIds = set()
                ccdRecordsWcs = {}
                for ccdRecord in ccdInputs:
                    visit = ccdRecord.get(visitKey)
                    ccd = ccdRecord.get(ccdKey)
                    inputVisitIds.add((visit, ccd))
                    ccdRecordsWcs[(visit, ccd)] = ccdRecord.getWcs()
 
                inputCatalogsToKeep = []
                inputCatalogWcsUpdate = []
                for i, dataRef in enumerate(inputRefs.visitCatalogs):
                    key = (dataRef.dataId['visit'], dataRef.dataId['detector'])
                    if key in inputVisitIds:
                        inputCatalogsToKeep.append(inputs['visitCatalogs'][i])
                        inputCatalogWcsUpdate.append(ccdRecordsWcs[key])
                inputs['visitCatalogs'] = inputCatalogsToKeep
                inputs['wcsUpdates'] = inputCatalogWcsUpdate
                inputs['ccdInputs'] = ccdInputs
 
        outputs = self.run(**inputs)
        # Strip HeavyFootprints to save space on disk
        sources = outputs.outputSources
        butlerQC.put(outputs, outputRefs)
 
    def run(self, exposure, sources, skyInfo, exposureId, ccdInputs=None, visitCatalogs=None, wcsUpdates=None,
            sourceTableHandleDict=None, finalizedSourceTableHandleDict=None):
        """Run measurement algorithms on the input exposure, and optionally populate the
        resulting catalog with extra information.
 
        Parameters
        ----------
        exposure : `lsst.afw.exposure.Exposure`
            The input exposure on which measurements are to be performed.
        sources :  `lsst.afw.table.SourceCatalog`
            A catalog built from the results of merged detections, or
            deblender outputs.
        skyInfo : `lsst.pipe.base.Struct`
            A struct containing information about the position of the input exposure within
            a `SkyMap`, the `SkyMap`, its `Wcs`, and its bounding box.
        exposureId : `int` or `bytes`
            Packed unique number or bytes unique to the input exposure.
        ccdInputs : `lsst.afw.table.ExposureCatalog`, optional
            Catalog containing information on the individual visits which went into making
            the coadd.
        visitCatalogs : `list` of `lsst.afw.table.SourceCatalogs`, optional
            A list of source catalogs corresponding to measurements made on the individual
            visits which went into the input exposure. If None and butler is `None` then
            the task cannot propagate visit flags to the output catalog.
            Deprecated, to be removed with PropagateVisitFlagsTask.
        wcsUpdates : `list` of `lsst.afw.geom.SkyWcs`, optional
            If visitCatalogs is not `None` this should be a list of wcs objects which correspond
            to the input visits. Used to put all coordinates to common system. If `None` and
            butler is `None` then the task cannot propagate visit flags to the output catalog.
            Deprecated, to be removed with PropagateVisitFlagsTask.
        sourceTableHandleDict : `dict` [`int`, `lsst.daf.butler.DeferredDatasetHandle`], optional
            Dict for sourceTable_visit handles (key is visit) for propagating flags.
            These tables are derived from the ``CalibrateTask`` sources, and contain
            astrometry and photometry flags, and optionally PSF flags.
        finalizedSourceTableHandleDict : `dict` [`int`, `lsst.daf.butler.DeferredDatasetHandle`], optional
            Dict for finalized_src_table handles (key is visit) for propagating flags.
            These tables are derived from ``FinalizeCalibrationTask`` and contain
            PSF flags from the finalized PSF estimation.
 
        Returns
        -------
        results : `lsst.pipe.base.Struct`
            Results of running measurement task. Will contain the catalog in the
            sources attribute. Optionally will have results of matching to a
            reference catalog in the matchResults attribute, and denormalized
            matches in the denormMatches attribute.
        """
        self.measurement.run(sources, exposure, exposureId=exposureId)
 
        if self.config.doApCorr:
            self.applyApCorr.run(
                catalog=sources,
                apCorrMap=exposure.getInfo().getApCorrMap()
            )
 
        # TODO DM-11568: this contiguous check-and-copy could go away if we
        # reserve enough space during SourceDetection and/or SourceDeblend.
        # NOTE: sourceSelectors require contiguous catalogs, so ensure
        # contiguity now, so views are preserved from here on.
        if not sources.isContiguous():
            sources = sources.copy(deep=True)
 
        if self.config.doRunCatalogCalculation:
            self.catalogCalculation.run(sources)
 
        self.setPrimaryFlags.run(sources, skyMap=skyInfo.skyMap, tractInfo=skyInfo.tractInfo,
                                 patchInfo=skyInfo.patchInfo)
        if self.config.doPropagateFlags:
            if self.config.propagateFlags.target == PropagateSourceFlagsTask:
                # New version
                self.propagateFlags.run(
                    sources,
                    ccdInputs,
                    sourceTableHandleDict,
                    finalizedSourceTableHandleDict
                )
            else:
                # Legacy deprecated version
                self.propagateFlags.run(
                    sources,
                    ccdInputs,
                    exposure.getWcs(),
                    visitCatalogs,
                    wcsUpdates
                )
 
        results = Struct()
 
        if self.config.doMatchSources:
            matchResult = self.match.run(sources, exposure.getInfo().getFilter().bandLabel)
            matches = afwTable.packMatches(matchResult.matches)
            matches.table.setMetadata(matchResult.matchMeta)
            results.matchResult = matches
            if self.config.doWriteMatchesDenormalized:
                if matchResult.matches:
                    denormMatches = denormalizeMatches(matchResult.matches, matchResult.matchMeta)
                else:
                    self.log.warning("No matches, so generating dummy denormalized matches file")
                    denormMatches = afwTable.BaseCatalog(afwTable.Schema())
                    denormMatches.setMetadata(PropertyList())
                    denormMatches.getMetadata().add("COMMENT",
                                                    "This catalog is empty because no matches were found.")
                    results.denormMatches = denormMatches
                results.denormMatches = denormMatches
 
        results.outputSources = sources
        return results