Rapid polarization imaging device and method based on time-sharing method

A polarized imaging and polarized image technology, which is applied in image communication, camera body, color TV parts, etc., can solve the problem of long-time and unusable polarization information, improve real-time performance, and increase imaging frame rate , to achieve the design effect

Pending Publication Date: 2021-06-29
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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  • Application Information

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Problems solved by technology

Its disadvantage is that it takes a long time to complete a measurement of polarization information, and it cannot be used when the target changes rapidly.

Method used

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  • Rapid polarization imaging device and method based on time-sharing method
  • Rapid polarization imaging device and method based on time-sharing method
  • Rapid polarization imaging device and method based on time-sharing method

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Embodiment Construction

[0041] In this example, if figure 1 As shown, a time-sharing rapid polarization imaging device includes: a lens module 1 , an angle rotation module 2 , a polarizer 3 , and a high-speed camera imaging module 4 . in:

[0042] The lens module 1 includes an optical lens for imaging a target scene;

[0043]The angle rotation module 2 includes a motor, a rotational speed detection device and a motor control module. The rotational speed detection device is used to detect the rotational speed of the polarizer, and feeds back to the motor control module in real time. The motor control module judges whether to generate a control instruction according to the received rotational speed information, and controls Motor start and stop, speed and other states. The motor is a hollow direct drive motor, the light emitted by the lens module 1 can pass through the aperture in the center of the hollow direct drive motor, and the polarizer 3 is installed inside the aperture center of the hollow di...

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Abstract

The invention discloses a fast polarization imaging device and method based on a time-sharing method. The device comprises a lens module, a polaroid, an angle rotation module and a high-speed camera imaging module. The polaroid is arranged in front of the high-speed camera imaging module, the angle rotating module drives the polaroid to rotate around the optical axis of the polaroid at a constant speed, external light rays are converged through the optical lens and then enter the high-speed camera imaging module through the polaroid, and the high-speed camera imaging module is used for exposing multiple times in the constant-speed rotating process of the polaroid, measuring light intensity images of the target scene at different polarization angles, and solving a polarization image by using the photographed light intensity images. According to the method, the imaging frame frequency of time-sharing method polarization imaging can be improved, tracking shooting of a certain moving target is achieved, the real-time performance of the time-sharing method is improved, and therefore the contradiction that time-sharing method rapid polarization imaging frame frequency improvement and polarization information authenticity guarantee restrict each other can be relieved to a certain extent.

Description

technical field [0001] The present invention relates to the technical field of polarization imaging, in particular to a device and method for fast polarization imaging based on a time-sharing method. Background technique [0002] Polarization is one of the important characteristics of electromagnetic waves. The polarization characteristics of substances are closely related to their properties. In recent years, the development of optoelectronic technology has spawned many advanced target information detection technologies. Polarization imaging technology is one of the important research directions. Polarization imaging can obtain the target Two-dimensional image information and polarization state information. Polarization parameters can well characterize the properties and characteristics of the detected target, and polarization information has richer connotations in expressing low-illumination and artificial building targets, reflecting the physical properties of the target....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/225H04N5/232G02B27/28G03B17/12G03B41/00
CPCG02B27/286G03B17/12G03B41/00H04N23/54H04N23/55H04N23/695
Inventor 陈迪虎谢邵春金伟周佐达熊伟
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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