Electronics Optics & Control, Volume. 22, Issue 10, 85(2015)
Noise Characteristic Analysis of High-Repetition-Rate Range-Gated Underwater Lidar Image
High-repetition-rate range-gated underwater lidar imaging is achieved by multi-pulse accumulation.Noise characteristic analysis of the high-repetition-rate range-gated underwater lidar image is a necessary step for further improving the imaging quality by image post-processing.Through an analysis of the characteristics of both additive noise and multiplicative noise,noise characteristics of the single pulse range-gated underwater lidar image,high-repetition-rate range-gated underwater lidar image and multi-frame averaged high-repetition-rate range-gated underwater lidar image are analyzed.The experimental results show that: 1) The single pulse range-gated underwater lidar image is mainly affected by the multiplicative noise; 2) The high-repetition-rate range-gated underwater lidar image is affected by both the additive noise and multiplicative noise; and 3) After multi-frame averaged,the high-repetition-rate range-gated underwater lidar image mainly contains multiplicative noises.
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DAI Lu, ZHANG Xiao-hui. Noise Characteristic Analysis of High-Repetition-Rate Range-Gated Underwater Lidar Image[J]. Electronics Optics & Control, 2015, 22(10): 85
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Received: Feb. 20, 2014
Accepted: --
Published Online: Jan. 19, 2016
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