Our Thesis

Our diploma thesis is about editing the images delivered by the OCT device

Posted July 5, 2021 by Adrian Wyssmann and Markus Fawer

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Task and objectives of the thesis

Our diploma thesis is about editing the images delivered by the OCT device. On the one hand, it should be possible to filter the images in order to be able to eliminate the numerous disturbances that occur in the images without losing essential information. On the other hand, it should be possible to segment the images. This means that it should be possible to assign the layers in the images to the layers as they appear in the human eye.

In order to be able to achieve these goals, we were able to use the results of 2 diploma theses that were made last year and the results of our term paper.

The first diploma thesis OCT Restoration2 aimed to process the images with different filters. The second diploma thesis [OCT3D] (http://www.hta-bi.bfh.ch/Projects/oct1/)1 provided us with an application that can be used to define processes edit the images. This also includes an extension framework that can be used to integrate internal processes.

The detailed assignment can be found here (de).

Goals

  • Merging OCT3D and OCT restoration Merging of the two applications OCT3D 1 and OCT-Restoration2.
  • Extension of the possible input data to radial scans The OCT3D application should be expanded so that 2D images of radial scans can also be viewed in the 3D volume display.
  • Implementation of the segmentation algorithm Implementation of the pyramid linking segmentation algorithm for 2D images and 3D volume display.
  • 2D viewing, color display It would be practical if the color display could be changed via mouse movement, as in the 3D module. In this way, a lusion can easily be displayed with higher contrast.
  • Export to hard disk A file, scan data for an entire patient or a whole number of patients can be selected by right-clicking and exported to an external hard disk in one go. If a file already exists, the software asks whether it really needs to be overwritten.
  • Print function, diagnosis sheet A displayed image can be printed with a right click or via menu selection. The screen selection can be made for the entire active window or just any section (lusion). There is a print preview with which you can also position the picture or change its size. There is the possibility of creating an individual template where, in addition to the image, the patient data and diagnoses can also be entered: an actual OCT3D diagnosis sheet. This sheet can be printed out or sent by email (e.g. PDF).
  • Save function If a single photo is saved, a large, gray “screen portion” appears which is superfluous and unwieldy.

1 (c) 2003 Anita Sommer, Hanspeter Zimmermann, Hochschule für Technik und Informatik Biel 2 (c) 2003 Yvonne Mettler, Ulrich Sigrist, Hochschule für Technik und Informatik Biel

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