Highly parallel GPU accelerator for HEVC transform and quantization

Cobrnic, Mate; Duspara, Alen; Dragić, Leon; Piljić, Igor; Kovač, Mario

doi:10.1117/12.2581228

2020 International Conference on Image, Video Processing and Artificial Intelligence 2020

DOI: 10.1117/12.2581228

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Highly parallel GPU accelerator for HEVC transform and quantization

Mate Cobrnic

Alen Duspara

Leon Dragić

et al.

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2024

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A Novel Low-Complexity and Parallel Algorithm for DCT IV Transform and Its GPU Implementation

Chiper,

Dobrea

2024

Applied Sciences

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This study proposes a novel factorization method for the DCT IV algorithm that allows for breaking it into four or eight sections that can be run in parallel. Moreover, the arithmetic complexity has been significantly reduced. Based on the proposed new algorithm for DCT IV, the speed performance has been improved substantially. The performance of this algorithm was verified using two different GPU systems produced by the NVIDIA company. The experimental results show that the novel proposed DCT algorithm achieves an impressive reduction in the total processing time. The proposed method is very efficient, improving the algorithm speed by more than 4-times—that was expected by segmenting the DCT algorithm into four sections running in parallel. The speed improvements are about five-times higher—at least 5.41 on Jetson AGX Xavier, and 10.11 on Jetson Orin Nano—if we compare with the classical implementation (based on a sequential approach) of DCT IV. Using a parallel formulation with eight sections running in parallel, the improvement in speed performance is even higher, at least 8.08-times on Jetson AGX Xavier and 11.81-times on Jetson Orin Nano.

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A Novel Low-Complexity and Parallel Algorithm for DCT IV Transform and Its GPU Implementation

Chiper,

Dobrea

2024

Applied Sciences

View full text Add to dashboard Cite

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Highly parallel GPU accelerator for HEVC transform and quantization

Cited by 1 publication

References 4 publications

A Novel Low-Complexity and Parallel Algorithm for DCT IV Transform and Its GPU Implementation

A Novel Low-Complexity and Parallel Algorithm for DCT IV Transform and Its GPU Implementation

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