Illumination-Guided Stereo Correspondence

Multispectral Stereo Image Correspondence

This paper presents a novel multispectral stereo image correspondence approach. It is evaluated using a stereo rig constructed with a visible spectrum camera and a long wave infrared spectrum camera. The novelty of the proposed approach lies on the usage of Hough space as a correspondence search domain. In this way it avoids searching for correspondence in the original multispectral image domai...

Stereo Correspondence Using Moment Invariants

Stereo correspondence using segment connectivity

This paper presents a method to search for stereo correspondence based on the connectivity of segments. The data structure is defined by boundary representation. The free curve can be treated by this data structure not as a straight line approximation, but as a curved line. Some candidates for correspondence pairs consist of two segments in left and right images under epipolar condition. The co...

Illumination Invariant Face Recognition Using Photometric Stereo

In this paper, we propose an elegant approach for illumination invariant face recognition based on the photometric stereo technique. The basic idea is to reconstruct the surface normal and the albedo of a face using photometric stereo images, and then use them as the illumination independent model of the face. And, we have investigated the optimal light source directions for accurate surface sh...

Obstacle detection using stereo without correspondence

Stereo vision is a straightforward approach for 3D information perception. However image correspondence is the most difficulty in real-time applications. In this paper a qualitative 3D scene verification method is proposed. The global correspondence problem is simplified to an optimization for disparity map parameters. The results of fitting provide the camera pose parameters. The obstacles are...