dataset

This repository contains the datasets used for training and evaluating Models 1, 2, and 3 in our study on estimating the Foveal Avascular Zone (FAZ) area from OCT B-scan images using machine learning algorithms.

Model 1 DatasetObjectiveTo predict the FAZ length from OCT B-scan images using machine learning.Data DetailsImagesTotal of 1,146 OCT B-scan images.Image size: 128 × 128 pixels.Each image is a B-scan slice centered on the fovea.Images are named sequentially (e.g., "1.bmp", "2.bmp", "3.bmp"), with no patient identification information included.LabelsEach image is associated with a numerical value representing the horizontal length of the FAZ segment.The length corresponds to the width of the FAZ at the foveal center.Length values are provided in pixels.Files IncludedB-scan ImagesProvided in BMP format.Filenames are numbered sequentially to maintain anonymity.Labels File"model_1_dataset.csv" containing two columns:"file_name": Name of the image file."length": Corresponding FAZ length in pixels.

Model 2 DatasetObjectiveTo predict the FAZ area in pixels from length measurements using machine learning.Data DetailsLength MeasurementsLengths are measured across up to five horizontal lines through the fovea.Lengths are labeled as "length1" to "length5":"length3": Central line passing through the foveal center."length2" and "length4": Lines above and below the central line."length1" and "length5": Lines further above and below the central line.Each line represents a different horizontal slice of the OCT image.LabelsEach set of length measurements corresponds to a FAZ area measured in pixels ("Faz_pixel").Model VariationsModel 2 (1 Line)Uses only the central length ("length3") for prediction.Model 2 (3 Lines)Uses "length2", "length3", and "length4" (central line and one line above and below).Model 2 (5 Lines)Uses "length1" to "length5" (central line and two lines above and below).Files IncludedLength Measurements and Labels File"model_2_dataset.csv" containing:"length1" to "length5": Length measurements in pixels."Faz_pixel": Corresponding FAZ area in pixels.

Model 3 DatasetObjectiveTo convert the FAZ area from pixels to square millimeters (mm²).Data DetailsFAZ Area MeasurementsFAZ areas measured in pixels ("Faz_pixel").Corresponding FAZ areas converted to square millimeters ("FAZ_mm2").Sample size: N = 498 data points.Files IncludedFAZ Area Conversion File"model_3_dataset.csv" containing:"Faz_pixel": FAZ area measured in pixels."FAZ_mm2": Corresponding FAZ area converted to mm².