Fast Hough Transform on GPUs: Exploration of Algorithm Trade-offs

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Provided by: Eindhoven University of Technology
Topic: Hardware
Format: PDF
The Hough transform is a commonly used algorithm to detect lines and other features in images. It is robust to noise and occlusion, but has a large computational cost. This paper introduces two new implementations of the Hough transform for lines on a GPU. One focuses on minimizing processing time, while the other has an input-data independent processing time. The authors' results show that optimizing the GPU code for speed can achieve a speed-up over naive GPU code of about 10. The implementation which focuses on processing speed is the faster one for most images, but the implementation which achieves a constant processing time is quicker for about 20% of the images.
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