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This paper presents a stereo matching algorithm using the dynamic programming technique. The stereo matching problem, that is, obtaining a correspondence between right and left images, can be cast as a search problem. When a pair of stereo images is rectified, pairs of corresponding points can be searched for within the same scanlines. We call this search(More)
In stereo algorithms with more than two cameras, the improvement of accuracy is often reported since they are robust against noise. However, another important aspect of the polynocular stereo, that is the ability of occlusion detection , has been paid less attention. We intensively analyzed the occlusion in the camera matrix stereo (SEA) and developed a(More)
Visualizing occluded objects is a useful applications of Mixed Reality (MR), which we call "see-through vision." For this application, it is important to display occluded objects in such a manner that they can be recognized intuitively by the user.Here, we evaluated five visualization methods for see-through vision that help the user to intuitively(More)
This paper presents a new outdoor mixed-reality system designed for people who carry a camera-attached small handy device in an outdoor scene where a number of surveillance cameras are embedded. We propose a new functionality in outdoor mixed reality that the handy device can display live status of invisible areas hidden by some structures such as(More)
If a pattern is projected onto a concave screen,the desired view cannot be correctly observed due to the influence of inter-reflections. This paper proposes a simple but effective technique for photometric compensation in consideration of inter-reflections. The compensation is accomplished by canceling inter-reflections estimated by the radiosity method.(More)
Facial micro-expressions were proven to be an important behaviour source for hostile intent and danger demeanour detection [1]. In this paper, we present a novel approach for facial micro-expressions recognition in video sequences. First, 200 frame per second (fps) high speed camera is used to capture the face. Second, the face is divided to specific(More)
This paper introduces a novel method for analyzing video records which contain personal activities captured by a head mounted camera. This aims to support the user to retrieve the most important or relevant portions from the videos. For this purpose, we use the user's behaviors which appear when he/she pays attention to something. We define two types of(More)
" NaviView " represents our concept of visual assistance for drivers at the wheel. Here, we propose a new visual assistance system that can visualize the blind area behind other large vehicles under real driving conditions. Our system visualizes the blind area as a virtual slope and reduces collision accidents while turning over opposite lanes at an(More)
We introduce a unified framework for developing matching constraints of multiple affine views and rederive 2-view (affine epipolar geometry) and 3-view (affine image transfer) constraints within this framwork. We then describe a new linear method for Euclidean motion and structure from 3 calibrated affine images, based on insight into the particular(More)