Merge pull request #156 from kushalbakshi/main

Export from DataJoint Element to NWB

CHANGELOG.md

@@ -3,6 +3,10 @@
 Observes [Semantic Versioning](https://semver.org/spec/v2.0.0.html) standard and
 [Keep a Changelog](https://keepachangelog.com/en/1.0.0/) convention.
 
+## [0.9.0] - 2023-10-13
+
++ Add - Export to NWB and upload to DANDI
+
 ## [0.8.1] - 2023-08-31
 
 + Fix - Rename `get_image_files` to `get_calcium_imaging_files` where missed

CONTRIBUTING.md

@@ -1,5 +1,5 @@
 # Contribution Guidelines
 
 This project follows the
-[DataJoint Contribution Guidelines](https://datajoint.com/docs/community/contribute/).
+[DataJoint Contribution Guidelines](https://datajoint.com/docs/about/contribute/).
 Please reference the link for more full details.

docs/src/concepts.md

@@ -60,3 +60,18 @@ segmented.
 - Scanbox
 - Nikon NIS-Elements
 - Bruker Prairie View
+
+## Data Export and Publishing
+
+Element Calcium Imaging supports exporting of all data into standard Neurodata
+Without Borders (NWB) files. This makes it easy to share files with collaborators and
+publish results on [DANDI Archive](https://dandiarchive.org/).
+[NWB](https://www.nwb.org/), as an organization, is dedicated to standardizing data
+formats and maximizing interoperability across tools for neurophysiology.
+
+To use the export functionality with additional related dependencies, install the
+Element with the `nwb` option as follows:
+
+```console
+pip install element-calcium-imaging[nwb]
+```

docs/src/roadmap.md

@@ -16,8 +16,8 @@ the common motifs to create Element Calcium Imaging. Major features include:
 - [x] Quality metrics
 - [ ] Data compression
 - [ ] Deepinterpolation
-- [ ] Data export to NWB
-- [ ] Data publishing to DANDI
+- [x] Data export to NWB
+- [x] Data publishing to DANDI
 
 Further development of this Element is community driven. Upon user requests and based on
 guidance from the Scientific Steering Group we will continue adding features to this 

element_calcium_imaging/export/nwb/__init__.py

@@ -0,0 +1 @@
+from .nwb import imaging_session_to_nwb, write_nwb

element_calcium_imaging/export/nwb/nwb.py

@@ -0,0 +1,333 @@
+import numpy as np
+import datajoint as dj
+from datajoint import DataJointError
+from pynwb import NWBHDF5IO, NWBFile
+from pynwb.ophys import (
+    Fluorescence,
+    ImageSegmentation,
+    OpticalChannel,
+    RoiResponseSeries,
+    TwoPhotonSeries,
+)
+
+from ... import scan, imaging_no_curation
+from ...scan import get_calcium_imaging_files, get_imaging_root_data_dir
+
+
+logger = dj.logger
+
+if imaging_no_curation.schema.is_activated():
+    imaging = imaging_no_curation
+else:
+    raise DataJointError(
+        "This export function is designed for the `imaging_no_curation` module."
+    )
+
+
+def imaging_session_to_nwb(
+    session_key,
+    include_raw_data=False,
+    lab_key=None,
+    project_key=None,
+    protocol_key=None,
+    nwbfile_kwargs=None,
+):
+    """Main function for converting calcium imaging data to NWB.
+
+    Args:
+        session_key (dict): key from Session table.
+        include_raw_data (bool): Optional. Default False. Include the raw data from
+        source. `ScanImage`, `Scanbox`, and `PrairieView` are supported.
+        lab_key (dict): Optional key to add metadata from Element Lab.
+        project_key (dict): Optional key to add metadata from Element Lab.
+        protocol_key (dict): Optional key to add metadata from Element Lab.
+        nwbfile_kwargs (dict): Optional. If Element Session is not used, this argument
+            is required and must be a dictionary containing 'session_description' (str),
+            'identifier' (str), and 'session_start_time' (datetime), the required
+             minimal data for instantiating an NWBFile object. If element-session is
+             being used, this argument can optionally be used to overwrite NWBFile
+             fields.
+    Returns:
+        nwbfile (NWBFile): nwb file
+    """
+
+    session_to_nwb = getattr(imaging._linking_module, "session_to_nwb", False)
+
+    if session_to_nwb:
+        nwb_file = session_to_nwb(
+            session_key,
+            lab_key=lab_key,
+            project_key=project_key,
+            protocol_key=protocol_key,
+            additional_nwbfile_kwargs=nwbfile_kwargs,
+        )
+    else:
+        nwb_file = NWBFile(**nwbfile_kwargs)
+
+    if include_raw_data:
+        _create_raw_data_nwbfile(session_key, linked_nwb_file=nwb_file)
+        if not nwb_file.imaging_planes:
+            _add_scan_to_nwb(session_key, nwbfile=nwb_file)
+
+    else:
+        _add_scan_to_nwb(session_key, nwbfile=nwb_file)
+    _add_image_series_to_nwb(
+        session_key, imaging_plane=nwb_file.imaging_planes["ImagingPlane"]
+    )
+    _add_segmentation_data_to_nwb(
+        session_key,
+        nwbfile=nwb_file,
+        imaging_plane=nwb_file.imaging_planes["ImagingPlane"],
+    )
+
+    return nwb_file
+
+
+def _create_raw_data_nwbfile(session_key, linked_nwb_file):
+    """Adds raw data to NWB file.
+
+    Args:
+        session_key (dict): key from Session table
+        linked_nwb_file (NWBFile): nwb file
+    """
+
+    acquisition_software = (scan.Scan & session_key).fetch1("acq_software")
+    frame_rate = (scan.ScanInfo & session_key).fetch1("fps")
+
+    if acquisition_software == "NIS":
+        raise NotImplementedError(
+            "Packaging raw data acquired from `Nikon NIS Elements` software is not supported at this time."
+        )
+
+    elif acquisition_software == "PrairieView":
+        n_planes = (scan.ScanInfo & session_key).fetch1("ndepths")
+        raw_data_files_location = get_calcium_imaging_files(
+            session_key, acquisition_software
+        )
+
+        if n_planes > 1:
+            from neuroconv.converters import (
+                BrukerTiffMultiPlaneConverter as BrukerTiffConverter,
+            )
+
+            imaging_interface = BrukerTiffConverter(
+                file_path=raw_data_files_location[0],
+                fallback_sampling_frequency=frame_rate,
+                plane_separation_type="disjoint",
+            )
+        else:
+            from neuroconv.converters import (
+                BrukerTiffSinglePlaneConverter as BrukerTiffConverter,
+            )
+
+            imaging_interface = BrukerTiffConverter(
+                file_path=raw_data_files_location[0],
+                fallback_sampling_frequency=frame_rate,
+            )
+        metadata = imaging_interface.get_metadata()
+        imaging_interface.add_to_nwbfile(
+            nwbfile=linked_nwb_file,
+            metadata=metadata,
+        )
+    else:
+        if acquisition_software == "ScanImage":
+            from neuroconv.datainterfaces import (
+                ScanImageImagingInterface as ImagingInterface,
+            )
+        elif acquisition_software == "Scanbox":
+            from neuroconv.datainterfaces import SbxImagingInterface as ImagingInterface
+
+        raw_data_files_location = get_calcium_imaging_files(
+            session_key, acquisition_software
+        )
+
+        imaging_interface = ImagingInterface(
+            file_path=raw_data_files_location[0], fallback_sampling_frequency=frame_rate
+        )
+        metadata = imaging_interface.get_metadata()
+        imaging_interface.add_to_nwbfile(
+            nwbfile=linked_nwb_file,
+            metadata=metadata,
+        )
+
+
+def _add_scan_to_nwb(session_key, nwbfile):
+    """Adds metadata for a scan from database.
+
+    Args:
+        session_key (dict): key from Session table
+        nwbfile (NWBFile): nwb file
+    """
+
+    from math import nan
+
+    try:
+        scan_key = (scan.Scan & session_key).fetch1("KEY")
+    except DataJointError:
+        raise NotImplementedError(
+            "Exporting more than one scan per session to NWB is not supported yet."
+        )
+
+    scanner_name, scan_notes = (scan.Scan & scan_key).fetch1("scanner", "scan_notes")
+    device = nwbfile.create_device(
+        name=scanner_name if scanner_name is not None else "TwoPhotonMicroscope",
+        description="Two photon microscope",
+        manufacturer="Microscope manufacturer",
+    )
+
+    no_channels, frame_rate = (scan.ScanInfo & scan_key).fetch1("nchannels", "fps")
+
+    field_keys = (scan.ScanInfo.Field & scan_key).fetch("KEY")
+
+    for channel in range(no_channels):
+        optical_channel = OpticalChannel(
+            name=f"OpticalChannel{channel+1}",
+            description=f"Optical channel number {channel+1}",
+            emission_lambda=nan,
+        )
+
+        for field_key in field_keys:
+            field_no = (scan.ScanInfo.Field & field_key).fetch1("field_idx")
+            imaging_plane = nwbfile.create_imaging_plane(
+                name="ImagingPlane",
+                optical_channel=optical_channel,
+                imaging_rate=frame_rate,
+                description=scan_notes
+                if scan_notes != ""
+                else f"Imaging plane for field {field_no+1}, channel {channel+1}",
+                device=device,
+                excitation_lambda=nan,
+                indicator="unknown",
+                location="unknown",
+                grid_spacing=(0.01, 0.01),
+                grid_spacing_unit="meters",
+                origin_coords=[1.0, 2.0, 3.0],
+                origin_coords_unit="meters",
+            )
+    return imaging_plane
+
+
+def _add_image_series_to_nwb(session_key, imaging_plane):
+    """Adds TwoPhotonSeries to NWB file.
+
+    Args:
+        session_key (dict): key from Session table
+        imaging_plane (NWBFile Imaging Plane): nwb file imaging plane object
+    """
+
+    imaging_files = (scan.ScanInfo.ScanFile & session_key).fetch("file_path")
+    two_p_series = TwoPhotonSeries(
+        name="TwoPhotonSeries",
+        dimension=(scan.ScanInfo.Field & session_key).fetch1("px_height", "px_width"),
+        external_file=imaging_files,
+        imaging_plane=imaging_plane,
+        starting_frame=[0],
+        format="external",
+        starting_time=0.0,
+        rate=(scan.ScanInfo & session_key).fetch1("fps"),
+    )
+    return two_p_series
+
+
+def _add_motion_correction_to_nwb(session_key, nwbfile):
+    raise NotImplementedError(
+        "Motion Correction data cannot be packaged into NWB at this time."
+    )
+
+
+def _add_segmentation_data_to_nwb(session_key, nwbfile, imaging_plane):
+    """Adds segmentation data from database.
+
+    Args:
+        session_key (dict): key from Session table
+        nwbfile (NWBFile): nwb file
+        imaging_plane (NWBFile Imaging Plane): nwb file imaging plane object
+    """
+
+    ophys_module = nwbfile.create_processing_module(
+        name="ophys", description="optical physiology processed data"
+    )
+    img_seg = ImageSegmentation()
+    ps = img_seg.create_plane_segmentation(
+        name="PlaneSegmentation",
+        description="output from segmenting",
+        imaging_plane=imaging_plane,
+    )
+    ophys_module.add(img_seg)
+
+    mask_keys = (imaging.Segmentation.Mask & session_key).fetch("KEY")
+    for mask_key in mask_keys:
+        ps.add_roi(
+            pixel_mask=np.asarray(
+                (imaging.Segmentation.Mask() & mask_key).fetch1(
+                    "mask_xpix", "mask_ypix", "mask_weights"
+                )
+            ).T
+        )
+
+    rt_region = ps.create_roi_table_region(
+        region=((imaging.Segmentation.Mask & session_key).fetch("mask")).tolist(),
+        description="All ROIs from database.",
+    )
+
+    channels = (scan.ScanInfo & session_key).fetch1("nchannels")
+    for channel in range(channels):
+        roi_resp_series = RoiResponseSeries(
+            name=f"Fluorescence_{channel}",
+            data=np.stack(
+                (
+                    imaging.Fluorescence.Trace
+                    & session_key
+                    & f"fluo_channel='{channel}'"
+                ).fetch("fluorescence")
+            ).T,
+            rois=rt_region,
+            unit="a.u.",
+            rate=(scan.ScanInfo & session_key).fetch1("fps"),
+        )
+        neuropil_series = RoiResponseSeries(
+            name=f"Neuropil_{channel}",
+            data=np.stack(
+                (
+                    imaging.Fluorescence.Trace
+                    & session_key
+                    & f"fluo_channel='{channel}'"
+                ).fetch("neuropil_fluorescence")
+            ).T,
+            rois=rt_region,
+            unit="a.u.",
+            rate=(scan.ScanInfo & session_key).fetch1("fps"),
+        )
+        deconvolved_series = RoiResponseSeries(
+            name=f"Deconvolved_{channel}",
+            data=np.stack(
+                (
+                    imaging.Activity.Trace & session_key & f"fluo_channel='{channel}'"
+                ).fetch("activity_trace")
+            ).T,
+            rois=rt_region,
+            unit="a.u.",
+            rate=(scan.ScanInfo & session_key).fetch1("fps"),
+        )
+    fl = Fluorescence(
+        roi_response_series=[roi_resp_series, neuropil_series, deconvolved_series]
+    )
+    ophys_module.add(fl)
+
+
+def write_nwb(nwbfile, fname, check_read=True):
+    """Export NWBFile
+
+    Args:
+        nwbfile (NWBFile): nwb file
+        fname (str): Absolute path including `*.nwb` extension.
+        check_read (bool): If True, PyNWB will try to read the produced NWB file and
+            ensure that it can be read.
+    """
+    with NWBHDF5IO(fname, "w") as io:
+        io.write(nwbfile)
+
+    if check_read:
+        with NWBHDF5IO(fname, "r") as io:
+            io.read()
+    logger.info("File saved successfully")

element_calcium_imaging/export/nwb/requirements.txt

@@ -0,0 +1,3 @@
+dandi
+pynwb
+neuroconv[scanimage, brukertiff, scanbox, caiman, suite2p, extract]

element_calcium_imaging/version.py

@@ -1,2 +1,2 @@
 """Package metadata."""
-__version__ = "0.8.1"
+__version__ = "0.9.0"

tests/__init__.py

@@ -76,4 +76,3 @@ def test_data(pipeline):
         _ = [find_full_path(root_dirs(), p) for p in sessions_dirs]
     except FileNotFoundError as e:
         print(e)
-