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High Level Transforms for SIMD and Low-Level Computer Vision Algorithms
Abstract : This paper presents a review of algorithmic transforms called High Level Transforms for IBM, Intel and ARM SIMD multi-core pro-cessors to accelerate the implementation of low level image pro-cessing algorithms. We show that these optimizations provide a significant acceleration. A first evaluation of 512-bit SIMD Xeon-Phi is also presented. We focus on the point that the combination of optimizations leading to the best execution time cannot be pre-dicted, and thus, systematic benchmarking is mandatory. Once the best configuration is found for each architecture, a comparison of these performances is presented. The Harris points detection opera-tor is selected as being representative of low level image processing and computer vision algorithms. Being composed of five convolu-tions, it is more complex than a simple filter and enables more op-portunities to combine optimizations. The presented work can scale across a wide range of codes using 2D stencils and convolutions.
Cited literature [17 references]
https://hal.inria.fr/hal-01094906
Contributor : Lionel Lacassagne Connect in order to contact the contributor
Submitted on : Tuesday, January 6, 2015 - 4:41:42 PM
Last modification on : Sunday, June 26, 2022 - 12:02:25 PM
Long-term archiving on: : Saturday, April 15, 2017 - 8:30:12 AM
Contributor : Lionel Lacassagne Connect in order to contact the contributor
Submitted on : Tuesday, January 6, 2015 - 4:41:42 PM
Last modification on : Sunday, June 26, 2022 - 12:02:25 PM
Long-term archiving on: : Saturday, April 15, 2017 - 8:30:12 AM
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simd-140122.pdf
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