New approach for underwater imaging and processing

Yanan Wen; Weijian Tian; Bing Zheng; Guozun Zhou; Hui Dong; Qiong Wu

doi:10.1117/12.2050139

21 May 2014 New approach for underwater imaging and processing

Yanan Wen, Weijian Tian, Bing Zheng, Guozun Zhou, Hui Dong, Qiong Wu

Proceedings Volume 9100, Image Sensing Technologies: Materials, Devices, Systems, and Applications; 91000S (2014) https://doi.org/10.1117/12.2050139
Event: SPIE Sensing Technology + Applications, 2014, Baltimore, MD, United States

Abstract

Due to the absorptive and scattering nature of water, the characteristic of underwater image is different with it in the air. Underwater image is characterized by their poor visibility and noise. Getting clear original image and image processing are two important problems to be solved in underwater clear vision area. In this paper a new approach technology is presented to solve these problems. Firstly, an inhomogeneous illumination method is developed to get the clear original image. Normal illumination image system and inhomogeneous illumination image system are used to capture the image in same distance. The result shows that the contrast and definition of processed image is get great improvement by inhomogeneous illumination method. Secondly, based on the theory of photon transmitted in the water and the particularity of underwater target detecting, the characters of laser scattering on underwater target surface and spatial and temporal characters of oceanic optical channel have been studied. Based on the Monte Carlo simulation, we studied how the parameters of water quality and other systemic parameters affect the light transmitting through water at spatial and temporal region and provided the theoretical sustentation of enhancing the SNR and operational distance.

Citation Download Citation

Yanan Wen, Weijian Tian, Bing Zheng, Guozun Zhou, Hui Dong, and Qiong Wu "New approach for underwater imaging and processing", Proc. SPIE 9100, Image Sensing Technologies: Materials, Devices, Systems, and Applications, 91000S (21 May 2014); https://doi.org/10.1117/12.2050139

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