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Record W3212825636

Retinal Segmentation for Glaucoma Diagnosis Using Deep Learning

2021· article· en· W3212825636 on OpenAlexaff
Laroy Milton

Bibliographic record

VenueStudent Research Proceedings · 2021
Typearticle
Languageen
FieldMedicine
TopicRetinal Imaging and Analysis
Canadian institutionsMacEwan University
Fundersnot available
KeywordsGlaucomaArtificial intelligenceThresholdingDeep learningComputer scienceOptic discSegmentationOptic nerveComputer visionPattern recognition (psychology)OptometryOphthalmologyImage (mathematics)Medicine
DOInot available

Abstract

fetched live from OpenAlex

Glaucoma is one of the leading causes of irreversible blindness around the world. One of the significant indicators of Glaucoma is the enlargement of the Optic Cup (OC) to the Optic Disc (OD). In this project, we created a computer algorithm to identify the ratio between the sizes of OD and OC to further predict the likelihood of glaucoma. The algorithm consisted of a two-step approach. The first step of the approach involved the identification and cropping of the Optic Nerve Head area, the part that contains the OD and OC in the retina. This was done using thresholding based on the brightest spot in the image. The second step was to segment the OD and OC from the cropped image. We used an image augmentation library to transform the images in our dataset to add variability. We passed the transformed images into a deep learning algorithm known as U-Net to segment the OD and OC. Our analysis in training separate deep learning models for OD and OC yielded a higher accuracy as compared to training the models for OD and OC together. Our model has the potential of performing better with greater precision to segment images for diagnosing Glaucoma. The future work includes enhancing the model by making some additional changes to increase the model’s accuracy. Department: Computer Science  Faculty Mentor: Dr. Dana Cobzas

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.001
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.335
Threshold uncertainty score0.462

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.001
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.136
GPT teacher head0.486
Teacher spread0.350 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designObservational
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations0
Published2021
Admission routes1
Has abstractyes

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