Connection Geometry, Color, and Stereo
نویسندگان
چکیده
The visual systems in primates are organized around orientation with a rich set of long-range horizontal connections. We abstract this from a differential-geometric perspective, and introduce the covariant derivative of frame fields as a general framework for early vision. This paper overviews our research showing how curve detection, texture, shading, color (hue), and stereo can be unified within this framework.
منابع مشابه
Recovering Local Geometry for Time-varying Mesh from Motion
3D geometric modeling of real-world characters from multiview video is one of the popular topics in computer vision. In order to capture detailed and accurate 3D geometric model (Time-varying mesh), however, most proposed systems use only some static components(e.g. intensity, texture, color) of the generalized frames, e.g. photometric stereo method, stereo matching method. On the other hand, t...
متن کاملDiffuse-Specular Separation and Depth Recovery from Image Sequences
Specular reflections present difficulties for many areas of computer vision such as stereo and segmentation. To separate specular and diffuse reflection components, previous approaches generally require accurate segmentation, regionally uniform reflectance or structured lighting. To overcome these limiting assumptions, we propose a method based on color analysis and multibaseline stereo that si...
متن کاملStereo Vision and Color Image Evaluation for Combined Scene Segmentation and Detection of Traffic Participants
Modern driver assistance systems such as collision avoidance or intersection assistance need reliable information on the current environment. Extracting such information from camera-based systems is a complex and challenging task for inner city traffic scenarios. This paper presents an approach to combined scene segmentation and object detection using stereo and color information. The extracted...
متن کاملStereo Matching of Color Images using Differential Invariants
In this paper, we present a new method for matching points in stereoscopic, uncalibrated color images. Our approach works on point primitives and consists rst in using a point characterization based on diierential invariants, deened until now for gray value images. Then we deene additional invariants of rst order, exploiting color information. The characterization obtained is invariant to ortho...
متن کاملOmnidirectional Stereo Vision
This paper discusses several interesting configurations of omnidirectional stereo (omnistereo) binocular omnistereo, N-ocular omnistereo, circular projection omnistereo and dynamic omni-stereo. An omnidirectional image can be either obtained by an omnidirectional camera or generated by image mosaicing. Usually an omnidirectional image has a 360-degree view around a viewpoint, and in its most co...
متن کامل