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The speed of face detection influences overall performance of applications like face recognition and human-robot interaction (HRI). In some applications such as long distance HRI, face detection is carried out on high resolution image up to 800×600 or more, leading to an increase in detection time and, in turn, deteriorating the application performance. To improve the speed of face detection, we propose...
Nuclear energy has become a major energy source to worldwide, even though we are still debating the environmental and safety aspects. In order to cope with that safety issues related to the nuclear power plants, the uncertain human factors needs to be minimized by automating the inspection and maintenance work done by human workers. The demands of a robotic system in the nuclear industry have been...
This paper is in two parts and addresses two ways of getting more information out of the RF signal from a three-dimensional (3D) mechanically-swept medical ultrasound scanner. The first topic is the use of non-blind deconvolution to improve the clarity of the data, particularly in the direction perpendicular to the individual B-scans. The second topic is strain imaging. We present a robust and efficient...
This paper presents a real-time method to estimate upper human posture using a stereo vision embedded system. Because of using the stereo vision system that produces precise disparity image, it is possible to execute real-time posture estimation with high accuracy. Proposed method is as follows. By using image processing and trigonometry, the positions of head and hands were acquired and discriminated...
In this research, a quadruped robot using an embedded system connected to the tele-operation server and wireless sensor network was developed. By using the i.MX21 embedded system, this robot transmits the MPEG 4 image sequence to the tele-operation server, and face detection and following control are performed in the server. The developed robot has 12 DOF 4 legs and 2 DOF pan-tilt actuators. As the...
We propose new face recognition algorithm using 3D line edge map as combining 3D information on the edge obtained by stereo camera and the conventional line edge map algorithm. As a similarity measure of 3D line edge map, weighted partial and spatially well-localized line segment Hausdorff distance (WPSLHD) is proposed. WPSLHD is a measure which is robust to expression changes, facial occlusions,...
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