Underwater three-dimensional imaging system based on binocular single detector

Abstract

The invention provides an underwater three-dimensional imaging system which comprises a control module, an illumination module and an imaging module. The control module is connected with the lighting module and the imaging module and used for controlling the lighting module and the imaging module to be turned on or turned off and recording images formed by the imaging module; the illumination module comprises an illumination light source and a light uniformizing assembly, and the light uniformizing assembly is used for uniformizing illumination light emitted by the illumination light source and completing illumination on a target; the imaging module comprises a lens assembly and a detector. The lens assembly is used for guiding optical signals reflected by the target to reach the detector for imaging. According to the underwater three-dimensional imaging system, a single detector is combined with an optical element, and two images which are originally separated in space are imaged on the same detector by using the optical element, specifically separated on the same detector in space or separated on the same detector in time. And an underwater three-dimensional imaging system with high resolution, long imaging distance and high imaging speed is constructed.

Description

technical field [0001] The invention relates to the technical field of three-dimensional imaging, in particular to an underwater three-dimensional imaging system based on a binocular single detector. Background technique [0002] In the underwater three-dimensional imaging technology, the general underwater binocular stereo vision system uses a combination of active lighting sources, dual optical systems, and dual detectors. On the one hand, it is because the price of a typical area array photosensitive chip is no longer the main factor affecting the cost of a 3D imaging system. On the other hand, the use of dual detectors can simplify the design of the optical system, and the software calibration and image processing of the dual detectors are also increasingly simplified. . So the typical underwater binocular stereo vision system adopts the design of dual detectors. [0003] However, because the water body environment has strong absorption and scattering of electromagneti...

AI Technical Summary

Problems solved by technology

The use of active lighting will result in low signal-to-noise ratio and poor imaging cooling

Because the comprehensive color information of the target needs to be obtained, the imaging distance is limited by the transmission distance of red light. The detection distance of a typical underwater binocular vision system is only a few meters, and the imaging distance is too short.

[0008] In summary, the existing underwater 3D imaging technologies have shortcomings that make them unable to meet the needs of practical applications.

Images