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Expanding Stereo-Disparity Range in an FPGA-system While Keeping Resource Utilisation Low by
| Content Provider | Semantic Scholar |
|---|---|
| Author | Masrani, Divyang K. |
| Abstract | Expanding Stereo-Disparity Range in an FPGA-system While Keeping Resource Utilisation Low Divyang K. Masrani Master of Applied Science Graduate Department of The Edward S. Rogers Sr. Department of Electrical and Computer Engineering University of Toronto 2006 We present the design and implementation of a Field-Programmable Gate Array (FPGA) based dense stereo depth measurement system that is capable of handling a very large disparity range. The throughput of the system is 60 frames/second on 640 × 240 images. Image rectification and consistency check improve accuracy of the results. The system is based on the Local Weighted Phase-Correlation algorithm [?] which estimates disparity using a multi-scale and multi-orientation approach. Though FPGAs are ideal devices to exploit the inherent parallelism in many computer vision algorithms, their finite resource capacity poses a challenge when adapting a system to deal with large image sizes or disparity ranges. We utilise the temporal information available in a video sequence to design a novel architecture for the correlation unit to achieve correlation over a large range while keeping the resource utilisation very low as compared to a naive approach. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://www.wjamesmaclean.net/Grads/Masrani_MASc.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
