INDEPENDENT COMPONENTS OF OPTICAL FLOW IN A MULTIRESOLUTION IMAGE SEQUENCE
| Autor: | Naoya Ohnishi, Atsushi Imiya |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
Motion analysis
Standard test image business.industry Computer science Computation ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION Optical flow Mobile robot Real image Independent component analysis Artificial Intelligence Computer vision Computer Vision and Pattern Recognition Artificial intelligence Pyramid (image processing) business Software |
| Zdroj: | International Journal of Pattern Recognition and Artificial Intelligence. 22:929-944 |
| ISSN: | 1793-6381 0218-0014 |
| Popis: | In this paper, we present an algorithm for the hierarchical recognition of an environment using independent components of optical flow fields for the visual navigation of a mobile robot. For the computation of optical flow, the pyramid transform of an image sequence is used for the analysis of global and local motion. Our algorithm detects the planar region and obstacles in the image from optical flow fields at each layer in the pyramid. Therefore, our algorithm allows us to achieve both global perception and local perception for robot vision. We show experimental results for both test image sequences and real image sequences captured by a mobile robot. Furthermore, we show some aspects of this work from the viewpoint of information theory. |
| Databáze: | OpenAIRE |
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