Computation of Orientational Filters for Real-time Computer Vision Problems III: Steerable System and VLSI Architecture
✍ Scribed by Toshiro Kubota; Cecil O. Alford
- Publisher
- Elsevier Science
- Year
- 1997
- Tongue
- English
- Weight
- 554 KB
- Volume
- 3
- Category
- Article
- ISSN
- 1077-2014
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✦ Synopsis
Computation of Orientational Filters for Real-time Computer Vision Problems III: Steerable System and VLSI Architecture
rientational filters have been used frequently for computer vision problems. Despite their strength in various vision problems, their use has been limited in real-time applications since Ot hey are computationally intensive. Part I presented separable approximation as a way to implement a real-time orientational filter operation with a small amount of hardware. Part II presented an efficient computation scheme for 2D multi-resolution decomposition. This paper extends the results of the previous papers to construct a multi-resolution filter system where the orientation of each filter can be adaptively controlled. Such a system is called steerable and is useful in many image analysis/processing applications. This paper also presents a VLSI architecture for various orientational filter systems. The architecture is scalable in terms of the input image size, the filter size, the number of orientational filters, and the approximation order.