Surveillance Video Analyses and Privacy Preserving Mechanisms for CPR Quality Measurement

• Main Authors: Yi-Tang Wang, 王奕棠
• Other Authors: Ja-Ling Wu
• Format: Others
• Language: en_US
• Published: 2008
• Online Access: http://ndltd.ncl.edu.tw/handle/04575480792044034794

碩士 === 國立臺灣大學 === 資訊網路與多媒體研究所 === 96 === In this thesis, we propose a system for automatically detecting cardiopulmonary resuscitation (CPR) events and analyzing CPR qualities from a surveillance video. The system is further applied to the training of healthcare providers in the emergency room. Instructors could more efficiently evaluate the CPR quality performed by a medical team with the aid of our system. We extract motion vectors from all image blocks and take motion information as a clue to classify video sequences into CPR and non-CPR segments based on the Support Vector Machine (SVM). We further analyze several indicators of CPR quality and attach CPR information to the video. In order not to infringe the privacy of the patient, we apply a mosaic mechanism to mask the skin color regions of the patient. Our system has been applied to several simulated CPR video sequences and the results show acceptable accuracy in CPR detection and CPR information measurement.