Automatic Detection of Out-of-body Frames in Surgical Videos for Privacy Protection Using Self-supervised Learning and Minimal Labels

• URL: http://arxiv.org/abs/2303.18106v1
• Date: Fri, 31 Mar 2023 14:53:56 GMT
• Title: Automatic Detection of Out-of-body Frames in Surgical Videos for Privacy Protection Using Self-supervised Learning and Minimal Labels
• Authors: Ziheng Wang, Conor Perreault, Xi Liu, Anthony Jarc
• Abstract summary: We propose a framework that accurately detects out-of-body frames in surgical videos. We use a massive amount of unlabeled endoscopic images to learn meaningful representations in a self-supervised manner.
• Score: 4.356941104145803
• License: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Abstract: Endoscopic video recordings are widely used in minimally invasive robot-assisted surgery, but when the endoscope is outside the patient's body, it can capture irrelevant segments that may contain sensitive information. To address this, we propose a framework that accurately detects out-of-body frames in surgical videos by leveraging self-supervision with minimal data labels. We use a massive amount of unlabeled endoscopic images to learn meaningful representations in a self-supervised manner. Our approach, which involves pre-training on an auxiliary task and fine-tuning with limited supervision, outperforms previous methods for detecting out-of-body frames in surgical videos captured from da Vinci X and Xi surgical systems. The average F1 scores range from 96.00 to 98.02. Remarkably, using only 5% of the training labels, our approach still maintains an average F1 score performance above 97, outperforming fully-supervised methods with 95% fewer labels. These results demonstrate the potential of our framework to facilitate the safe handling of surgical video recordings and enhance data privacy protection in minimally invasive surgery.

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