Subtraction stereo: a stereo camera system that focuses on moving regions

Kazunori Umeda; Yuuki Hashimoto; Tatsuya Nakanishi; Kota Irie; Kenji Terabayashi

doi:10.1117/12.805718

19 January 2009 Subtraction stereo: a stereo camera system that focuses on moving regions

Kazunori Umeda, Yuuki Hashimoto, Tatsuya Nakanishi, Kota Irie, Kenji Terabayashi

Proceedings Volume 7239, Three-Dimensional Imaging Metrology; 723908 (2009) https://doi.org/10.1117/12.805718
Event: IS&T/SPIE Electronic Imaging, 2009, San Jose, California, United States

Abstract

This study aims at developing a practical stereo camera that is suitable for applications such as surveillance, in which detection of anomalies or measurement of moving people are required. In such surveillance cases, targets to measure usually move. In this paper, "Subtraction stereo" is proposed that focuses on motion information to increase the robustness of the stereo matching. It realizes robust measurement of range images by detecting moving regions with each camera and then applying stereo matching for the detected moving regions. Measurement of three-dimensional position, height and width of a target object using the subtraction stereo is discussed. The basic algorithm is implemented on a commercially available stereo camera, and the effectiveness of the subtraction stereo is verified by several experiments using the stereo camera.

Citation Download Citation

Kazunori Umeda, Yuuki Hashimoto, Tatsuya Nakanishi, Kota Irie, and Kenji Terabayashi "Subtraction stereo: a stereo camera system that focuses on moving regions", Proc. SPIE 7239, Three-Dimensional Imaging Metrology, 723908 (19 January 2009); https://doi.org/10.1117/12.805718

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