High-speed structured light 3D imaging system
A technology of three-dimensional imaging and structured light, which is applied in the direction of instruments, etc., can solve the problems of reduced imaging speed, inability to obtain high-speed images and videos, and limit the application range of structured light three-dimensional imaging, so as to achieve the effect of improving imaging speed
Active Publication Date: 2019-11-01
TSINGHUA UNIV
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[0003] However, this method has a big defect, that is, the digital micromirror array is usually a micromechanical structure or a liquid crystal device, which makes the speed of the micromirror array too slow when adjusting the random matrix, and the imaging speed is greatly reduced, no more than 100 frames per second, which makes the single-pixel imaging system only used to capture still or quasi-stationary images, but cannot obtain high-speed images and videos, which severely limits the application range of structured light 3D imaging
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[0035] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Note that in this specification and the drawings, substantially the same steps and elements are denoted by the same reference numerals, and repeated explanation of these steps and elements will be omitted.
[0036] figure 1 A first exemplary frame diagram of a high-speed structured light 3D imaging system according to an embodiment of the present invention is shown. The following will refer to figure 1 A high-speed structured light three-dimensional imaging system according to an embodiment of the present invention will be described. see figure 1 , the high-speed structured light three-dimensional imaging system 100 includes: a high-speed structured light generating device 110 , a light collecting device 120 , and an image reconstruction device 130 .
[0037] The high-speed structured light generating device 110 is used to generate a s...
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A high-speed structured light three dimensional imaging system comprises a high-speed structured light generation device, an imaging scene, a light acquisition device and an image reconstruction device. The high-speed structured light generation device is used to generate a structured light pattern and is used as a light source to be projected to a target object, the light acquisition device is used to acquire a reflection and / or scattering pulse light signal carrying the three dimensional information of the target object, and the image reconstruction device is used to carry out the image reconstruction on the information acquired by the light acquisition device. The high-speed structured light three dimensional imaging system of the embodiment of the present invention does not need a mechanical adjustment mechanism, avoids the mechanical structures, such as a digital micromirror array, etc., in a conventional signal pixel imaging system, and enables the imaging speed to be improved substantially.
Description
technical field [0001] Embodiments of the present invention relate to a high-speed structured light three-dimensional imaging system. Background technique [0002] Structured light imaging technology is a commonly used signal acquisition technology. Traditional structured light imaging technology uses a digital micromirror array (DMD) to spatially modulate the laser light source to generate a specific sequence of structured light patterns required for measurement. [0003] However, this method has a big defect, that is, the digital micromirror array is usually a micromechanical structure or a liquid crystal device, which makes the speed of the micromirror array too slow when adjusting the random matrix, and the imaging speed is greatly reduced, no more than 100 frames / s, which makes the single-pixel imaging system can only be used to capture still or quasi-stationary images, but cannot obtain high-speed images and videos, which severely limits the application range of struc...
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IPC IPC(8): G03H1/12
CPCG03H1/12
Inventor 陈宏伟王雨西陈明华谢世钟
Owner TSINGHUA UNIV