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Portable phase camera system under natural light illumination

A natural light lighting, portable technology, used in TV system components, measurement optics, optical radiation measurement, etc., can solve problems such as high stability requirements, easy to be affected by the environment, inability to perform outdoor shooting, etc., to improve data The effect of collecting speed and avoiding mechanical movement

Pending Publication Date: 2018-05-08
ANHUI UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this technique requires a specific color camera and reduces the resolution of the recovered phase
In addition, the optical experiment system has high requirements on stability, and the built platform is relatively complicated, which is easily affected by the environment and cannot be used for outdoor shooting.

Method used

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  • Portable phase camera system under natural light illumination
  • Portable phase camera system under natural light illumination
  • Portable phase camera system under natural light illumination

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Embodiment Construction

[0028] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0029] Such as figure 1 As shown, a portable phase camera system under natural light illumination includes an achromatic lens 1, an adjustable filter 2, a dual-lens system 3, a CCD4 and a camera processor 5, wherein the dual-lens system 3 is controlled by the first Fourier The transformation lens 31 and the second Fourier transformation lens 32 are constituted. The tunable filter 2 is set on the outgoing light path of the achromatic lens 1, the double-lens system 3 is set on the outgoing light path of the adjustable filter 2, the CCD4 is set on the outgoing light path of the double-lens system 3, and the signal of the camera processor 5 The input end is connected with the signal output end of the CCD4, and is used to process the three intensity images obtained by the CCD4 to calculate the phase. Achromatic lens 1 is made of convex and concave...

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Abstract

The invention provides a portable phase camera system under natural light illumination. The portable phase camera system comprises an achromatic lens, a tunable filter, a double-lens system, a CCD anda camera processor. The tunable filter is disposed on the emergent light path of the achromatic lens. The double-lens system is disposed on the emergent light path of the tunable filter. The CCD is disposed on the emergent light path of the double-lens system. The signal input end of the camera processor is connected with the signal output end of the CCD. The portable phase camera system avoids the mechanical movement introduced by the intensity image acquisition in traditional phase recovery and improves the data acquisition speed. Further, the adjustable filter makes the portable phase camera system obtain the same acquisition effect with a traditional camera in the case of acquiring a small amount of data. The entire system can meet the needs for real-time, fast, and high-precision phase acquisition in natural scenes.

Description

technical field [0001] The invention relates to the technical field of optical measurement and three-dimensional imaging, in particular to a portable phase camera system illuminated by natural light. Background technique [0002] A light field contains three important parameters: amplitude, wavelength, and phase. More than 75% of the information is hidden in the phase. But the vibration frequency of light reaches 10 15 Hz, the existing measurement equipment such as camera systems cannot directly obtain the phase. [0003] The phase recovery method based on the Transport of Intensity Equation (TIE) only needs to measure the light intensity distribution of the light wave to be measured at different transmission distances to recover the phase information by solving the equation. The equation form is as follows: [0004] [0005] where the light wave propagates along the z direction, λ represents the light wavelength, I and Respectively represent z 0 The intensity and ...

Claims

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Application Information

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IPC IPC(8): G01J9/00H04N5/372
CPCG01J9/00H04N25/71
Inventor 程鸿王金成马慧敏熊帮玲
Owner ANHUI UNIVERSITY
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