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An underwater full polarization information acquisition and processing device and method

A technology for information collection and processing devices, applied in measuring devices, measuring light polarization, instruments, etc., can solve the problems of large absorption and scattering, poor contrast, etc., and achieve the effect of identification and detection

Active Publication Date: 2015-08-26
HOHAI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] In the underwater environment, due to the strong absorption and scattering of light by the water body, the light energy attenuates rapidly in the water, which makes the underwater imaging appear foggy and the contrast is poor.

Method used

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  • An underwater full polarization information acquisition and processing device and method
  • An underwater full polarization information acquisition and processing device and method
  • An underwater full polarization information acquisition and processing device and method

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Embodiment Construction

[0022] Below in conjunction with specific embodiment, further illustrate the present invention, should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various equivalent forms of the present invention All modifications fall within the scope defined by the appended claims of the present application.

[0023] Such as figure 1 As shown, the underwater full-polarization information acquisition and processing device mainly includes a full-polarization information acquisition part, a full-polarization information control and processing part. The full polarization information collection part includes a circular polarization camera and three linear polarization cameras. The full polarization information control and processing part includes power supply, SRAM1, SRAM2, FLASH configuration chip, FPGA ch...

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Abstract

The invention discloses a device and method for collecting and processing underwater full polarization information. The device is formed by a circular polarization camera, three linear polarization cameras and an FPGA board. The three linear polarization cameras are arranged below the circular polarization camera side by side, and control synchronous collection of objective images based on the FPGA board to complete full polarization information collection. Polarization image parameter calculation is carried out on the data of the collected four polarization images based on the FPGA to obtain the total light intensity, the linear polarization component and the circular polarization component of an objective, and polarization parameter calculation is completed. The full polarization information collecting device can be further connected with an upper computer, and outputs data to the upper computer to display the data. The device and method for collecting and processing the underwater full polarization information is beneficial to extracting underwater objective information and carrying out detection on the objective.

Description

technical field [0001] The invention relates to the technical field of image acquisition, in particular to a device and method for collecting and processing full polarization information applied in an underwater environment. Background technique [0002] In the underwater environment, due to the large absorption and scattering effect of the water body on light, the light energy attenuates rapidly in the water, which makes the underwater imaging appear foggy and the contrast is poor. The polarization imaging system collects the polarization information of the target and the background. Due to the clutter of the background, the polarization degree of the background reflected light is low, but the polarization degree of the target reflected light is much larger than that of the background reflected light. Therefore, using the target and background The difference in the polarization information of reflected light can better distinguish the target from the background. Therefore, ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01J4/04
Inventor 沈洁骆常见王慧斌徐淑芳陈哲
Owner HOHAI UNIV
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