Sensors, Vol. 20, Pages 5600: A Biological Retina Inspired Tone Mapping Processor for High-Speed and Energy-Efficient Image Enhancement

Sensors, Vol. 20, Pages 5600: A Biological Retina Inspired Tone Mapping Processor for High-Speed and Energy-Efficient Image Enhancement
Sensors doi: 10.3390/s20195600
Authors:
Xiaoqiang Xiang
Lili Liu
Luying Que
Conghan Jia
Bo Yan
Yongjie Li
Jinhong Guo
Jun Zhou

In this work, a biological retina inspired tone mapping processor for high-speed and energy-efficient image enhancement has been proposed. To achieve high throughput and high energy efficiency, several hardware design techniques have been proposed, including data partition based parallel processing with S-shape sliding, adjacent frame feature sharing, multi-layer convolution pipelining, and convolution filter compression with zero skipping convolution. Implemented on a Xilinx’s Virtex7 FPGA, the proposed design achieves a high throughput of 189 frames per second for 1024 × 768 RGB images while consuming 819 mW. Compared with several state-of-the-art tone mapping processors, the proposed design shows higher throughput and energy efficiency. It is suitable for high-speed and energy-constrained image enhancement applications.

Source: Sensors - September 29, 2020 Category: Biotechnology Authors: Xiaoqiang Xiang Lili Liu Luying Que Conghan Jia Bo Yan Yongjie Li Jinhong Guo Jun Zhou Tags: Letter Source Type: research