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https://github.com/marksgraham/OCT-Converter
Tools for extracting the raw optical coherence tomography (OCT) and fundus data from proprietary file formats.
https://github.com/marksgraham/OCT-Converter
biobank dicom e2e fda fundus heidelberg oct python topcon zeiss
Last synced: 2 days ago
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Tools for extracting the raw optical coherence tomography (OCT) and fundus data from proprietary file formats.
- Host: GitHub
- URL: https://github.com/marksgraham/OCT-Converter
- Owner: marksgraham
- License: mit
- Created: 2019-04-26T16:39:45.000Z (over 5 years ago)
- Default Branch: main
- Last Pushed: 2024-11-03T15:56:54.000Z (5 days ago)
- Last Synced: 2024-11-03T16:32:49.054Z (5 days ago)
- Topics: biobank, dicom, e2e, fda, fundus, heidelberg, oct, python, topcon, zeiss
- Language: Python
- Homepage: https://pypi.org/project/oct-converter/
- Size: 94.3 MB
- Stars: 199
- Watchers: 18
- Forks: 72
- Open Issues: 10
-
Metadata Files:
- Readme: README.md
- License: LICENSE
- Citation: CITATION.cff
Awesome Lists containing this project
- awesome-uk-biobank - OCT-Converter
README
OCT Converter
Python-based tools for reading OCT and fundus data.
## Description
In ophthalmology, data acquired from the scanner is often exported in the manufacturer's proprietary file format. OCT-Converter provides python-based tools for extracting images (optical coherence tomography and fundus), as well as associated metadata, from these files.
## Supported file formats
* .fds (Topcon)
* .fda (Topcon)
* .e2e (Heidelberg)
* .img (Zeiss)
* .oct (Bioptigen)
* .OCT (Optovue)
* .dcm
## Installation
Requires python 3.7 or higher.
```bash
pip install oct-converter
```
## Usage
A number of example usage scripts are included in `examples/`.
Here is an example of reading a .fds file:
```python
from oct_converter.dicom import create_dicom_from_oct
from oct_converter.readers import FDS
# An example .fds file can be downloaded from the Biobank website:
# https://biobank.ndph.ox.ac.uk/showcase/refer.cgi?id=30
filepath = '/home/mark/Downloads/eg_oct_fds.fds'
fds = FDS(filepath)
oct_volume = fds.read_oct_volume() # returns an OCT volume with additional metadata if available
oct_volume.peek(show_contours=True) # plots a montage of the volume, with layer segmentations is available
oct_volume.save('fds_testing.avi') # save volume as a movie
oct_volume.save('fds_testing.png') # save volume as a set of sequential images, fds_testing_[1...N].png
oct_volume.save_projection('projection.png') # save 2D projection
fundus_image = fds.read_fundus_image() # returns a Fundus image with additional metadata if available
fundus_image.save('fds_testing_fundus.jpg')
metadata = fds.read_all_metadata(verbose=True) # extracts all other metadata
with open("fds_metadata.json", "w") as outfile:
outfile.write(json.dumps(metadata, indent=4))
# create and save a DICOM
dcm = create_dicom_from_oct(filepath)
```
## Contributions
Are welcome! Here is a [development roadmap](https://github.com/marksgraham/OCT-Converter/issues/86), including some easy first issues. Please open a [new issue](https://github.com/marksgraham/OCT-Converter/issues/new) to discuss any potential contributions.
## Updates
9 November 2023
- Can now save .e2e, .img, .oct, and .OCT files as DICOMs with correct headers.
22 September 2023
- DICOM support: can now save .fda/.fds files as DICOMs with correct headers.
- Much more complete extraction of .fda/.fds metadata.
28 March 2023
- Metadata extraction for .fds expanded to match that of .fda file.
31 January 2023
- Greatly extended support for extracting metadata from .fda files.
7 August 2022
- Contours (layer segmentations) are now extracted from .e2e files.
- Acquisition date is now extracted from .e2e files.
16 June 2022
- Initial support for reading Optovue OCTs.
- Laterality is now extracted separately for each OCT/fundus image for .e2e files.
- More patient info extracted from .e2e files (name, sex, birthdate, patient ID).
24 Aug 2021
- Reading the Bioptigen .OCT format is now supported.
11 June 2021
- Can now specify whether Zeiss .img data needs to be de-interlaced during reading.
14 May 2021
- Can save 2D projections of OCT volumes.
30 October 2020
- Extract fundus and laterality data from .e2e
- Now attempts to extract additional volumetric data from .e2e files that was previously missed.
22 August 2020
- Experimental support for reading OCT data from .fda files.
14 July 2020
- Can now read fundus data from .fda files.
## Related projects
- [uocte](https://bitbucket.org/uocte/uocte/wiki/Home) inspired and enabled this project
- [LibE2E](https://github.com/neurodial/LibE2E) and [LibOctData](https://github.com/neurodial/LibOctData) provided some additional descriptions of the .e2e file spec
- [eyepy](https://github.com/MedVisBonn/eyepy) for python-based import, visualisation, and analysis of OCT data
- [eyelab](https://github.com/MedVisBonn/eyelab) is a tool for annotating this data
## Clinical use
We can't guarantee images extracted with OCT-Converter will match those extracted or viewed with the manufacturer's software. Any use in clinical settings is at the user's own risk.