{"id":337,"date":"2021-10-01T17:38:39","date_gmt":"2021-10-01T15:38:39","guid":{"rendered":"https:\/\/www.itec.aau.at\/~mt\/?p=337"},"modified":"2021-10-01T17:39:29","modified_gmt":"2021-10-01T15:39:29","slug":"pupil-reactions-in-cataract-surgery-videos","status":"publish","type":"post","link":"http:\/\/www.itec.aau.at\/~mt\/2021\/10\/pupil-reactions-in-cataract-surgery-videos\/","title":{"rendered":"Pupil reactions in cataract surgery videos"},"content":{"rendered":"\n<p>Our paper has been accepted for publication in the <a href=\"https:\/\/journals.plos.org\/plosone\/\">PLOS ONE<\/a> journal.<\/p>\n\n\n\n<p><strong>Title:<\/strong> Automatic detection of pupil reactions in cataract surgery videos<\/p>\n\n\n\n<p><strong>Authors:<\/strong> Natalia Sokolova, Klaus Schoeffmann, Mario Taschwer, Stephanie Sarny, Doris Putzgruber-Adamitsch, Yosuf El-Shabrawi<\/p>\n\n\n\n<p><strong>Abstract: <\/strong>Nowadays, post-operative analysis of cataract surgeries becomes more and more<br>important especially to detect intraoperative complications. Some severe complications<br>may arise from sudden pupil reactions. These may lead to a significant damage of ocular<br>structure, especially in inexperienced surgeons. Therefore, the automatic retrieval of<br>such events may be a great support for the post-operative analysis. This helps to train<br>young surgeons to deal with such situations. In this work, we automatically detect pupil<br>reactions in cataract surgery videos. We employ the Mask R-CNN architecture as a<br>segmentation algorithm, which allows us to segment the pupil and iris with pixel-based<br>accuracy and then track their size changes across the entire video. We can detect pupil<br>reactions with a harmonic mean (H) of Recall, Precision, and Ground Truth Coverage<br>Rate (GTCR) of 60, 9% and average prediction length (PL) of 18.93 seconds. However,<br>we consider the best configuration for practical use the one with an H value of 59.4%<br>and PL of 10.2 seconds, which is much shorter. We further investigate the<br>generalization of this method on a slightly different dataset without retraining the<br>model. In this evaluation, we achieve an H value of 49.3% with the PL of 18.15 seconds.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Our paper has been accepted for publication in the PLOS ONE journal. Title: Automatic detection of pupil reactions in cataract surgery videos Authors: Natalia Sokolova, Klaus Schoeffmann, Mario Taschwer, Stephanie Sarny, Doris Putzgruber-Adamitsch, Yosuf El-Shabrawi Abstract: Nowadays, post-operative analysis of cataract surgeries becomes more and moreimportant especially to detect intraoperative complications. Some severe complicationsmay arise [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-337","post","type-post","status-publish","format-standard","hentry","category-research"],"_links":{"self":[{"href":"http:\/\/www.itec.aau.at\/~mt\/wp-json\/wp\/v2\/posts\/337","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.itec.aau.at\/~mt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.itec.aau.at\/~mt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.itec.aau.at\/~mt\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.itec.aau.at\/~mt\/wp-json\/wp\/v2\/comments?post=337"}],"version-history":[{"count":2,"href":"http:\/\/www.itec.aau.at\/~mt\/wp-json\/wp\/v2\/posts\/337\/revisions"}],"predecessor-version":[{"id":339,"href":"http:\/\/www.itec.aau.at\/~mt\/wp-json\/wp\/v2\/posts\/337\/revisions\/339"}],"wp:attachment":[{"href":"http:\/\/www.itec.aau.at\/~mt\/wp-json\/wp\/v2\/media?parent=337"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.itec.aau.at\/~mt\/wp-json\/wp\/v2\/categories?post=337"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.itec.aau.at\/~mt\/wp-json\/wp\/v2\/tags?post=337"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}