caa a22 4500 605447233 CHVBK 20210128100131.0 cr unu---uuuuu 210128e20150701xx s 000 0 eng 10.1007/s11042-013-1826-9 doi (NATIONALLICENCE)springer-10.1007/s11042-013-1826-9 Building 3D event logs for video investigation [Elektronische Daten] [Trung Dang, Marcel Worring, The Bui] In scene investigation, creating a video log captured using a handheld camera is more convenient and more complete than taking photos and notes. By introducing video analysis and computer vision techniques, it is possible to build a spatio-temporal representation of the investigation. Such a representation gives a better overview than a set of photos and makes an investigation more accessible. We develop such methods and present an interface for navigating the result. The processing includes (i) segmenting a log into events using novel structure and motion features making the log easier to access in the time dimension, and (ii) mapping video frames to a 3D model of the scene so the log can be navigated in space. Our results show that, using our proposed features, we can recognize more than 70 percent of all frames correctly, and more importantly find all the events. From there we provide a method to semi-interactively map those events to a 3D model of the scene. With this we can map more than 80 percent of the events. The result is a 3D event log that captures the investigation and supports applications such as revisiting the scene, examining the investigation itself, or hypothesis testing. Springer Science+Business Media New York, 2014 Scene investigation nationallicence Video analysis nationallicence Story navigation nationallicence 3D model nationallicence Dang Trung University of Amsterdam, Amsterdam, The Netherlands aut Worring Marcel University of Amsterdam, Amsterdam, The Netherlands aut Bui The University of Engineering and Technology, Vietnam National University Hanoi, Hanoi, Vietnam aut Multimedia Tools and Applications Springer US; http://www.springer-ny.com 74/13(2015-07-01), 4617-4639 1380-7501 74:13<4617 2015 74 11042 https://doi.org/10.1007/s11042-013-1826-9 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s11042-013-1826-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Dang Trung University of Amsterdam, Amsterdam, The Netherlands aut NATIONALLICENCE 700 1- Worring Marcel University of Amsterdam, Amsterdam, The Netherlands aut NATIONALLICENCE 700 1- Bui The University of Engineering and Technology, Vietnam National University Hanoi, Hanoi, Vietnam aut NATIONALLICENCE 773 0- Multimedia Tools and Applications Springer US; http://www.springer-ny.com 74/13(2015-07-01), 4617-4639 1380-7501 74:13<4617 2015 74 11042