Underwater in-situ image restoration system and method thereof

Abstract

The invention provides an underwater in-situ image restoration system and a method thereof. The system comprises an underwater robot framework, laser flashlights, CCD cameras and supports. The underwater robot framework has N cross bars which are located on a same horizontal surface. The N is an integer which is greater than or equal to 3. One end of each cross bar is provided with each laser flashlight. The other end of each cross bar is provided with each support. The CCD cameras are installed on the supports. The laser flashlights directly face towards the CCD cameras. Light beams emitted by the laser flashlights and lenses of the CCD cameras are located at a same horizontal line. In the invention, a non-blind restoration method is adopted; under a known point diffusion function (PSF) condition, image information can be accurately extracted and a clear image is acquired; a quality decrease problem of underwater image shooting is solved; and image restoration quality is increased and the system and the method are suitable for quality decrease image restoration of different water qualities.

Description

technical field [0001] The invention relates to the technical field of image restoration, in particular to an underwater in-situ image restoration system and a method thereof. Background technique [0002] More than 70% of the earth's area is ocean, and the vast ocean contains rich fishery and mining resources, which play a vital role in alleviating the increasing pressure on population, resources and environment faced by human beings. Therefore, the importance of theories and technologies such as the acquisition, transmission and processing of marine information has become more prominent. [0003] As one of the important means of exploring the ocean, underwater robots can work in the water for a long time, perform tasks such as underwater observation, photography, salvage and construction, and are also useful in the military for reconnaissance and mine laying. The success of these tasks is inseparable from the acquisition of underwater information. Therefore, most of the c...

AI Technical Summary

Problems solved by technology

Regarding the underwater degraded image restoration method based on physical models, Grosso and Voss used experimental methods to measure the underwater optical transfer function, but the equipment is expensive and complicated and difficult to be practical

In the experimental method, the light transfer function can also be combined with the one-dimensional MTF information of the water body. This method has more data and higher precision, but it is difficult to meet the laboratory conditions under the sea, so the versatility is not good.

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