Adaptive High-Dynamic Range Three-Dimensional Shape Measurement Using DMD Camera

Zhao, Shou-Bo; Liu, Liyuan; Ma, Mingyang

doi:10.1109/access.2019.2918843

Cited by 11 publications

(2 citation statements)

References 23 publications

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“…Various polarization-based specular reflection removal approaches have been proposed, integrating with deep neural networks, polarization-state-encode pattern, polarization chromaticity image, and multispectral imaging [36][37][38][39][40]. Highlight removal methods based on the digital micromirror device (DMD) enable pixel-level control of specular reflection intensity [41][42][43]. However, it is crucial to conduct pixel matching between the DMD and the sensor, establishing their coordinate mapping and response curves before the imaging process.…”

Section: Introductionmentioning

confidence: 99%

Computational ghost imaging with adaptive intensity illumination for scenes featuring specular surfaces

Xiong,

Zhang,

et al. 2024

J. Opt.

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Imaging a target scene with specular surfaces is a daunting challenge for both direct imaging and indirect computational imaging techniques. The intense specular reflection component during the measurement severely degrades the quality of the reconstructed image, resulting in a substantial loss of scene information. To address this issue, we propose a computational ghost imaging （CGI） method with adaptive intensity illumination. Capitalizing on the encoded imaging feature of CGI, this method enables effective imaging of target scenes with specular surfaces through two series of measurements, eliminating the necessity for additional optical components. Based on the position and intensity information of pixels in the specular regions from the first series of measurements, our method modulates the illumination patterns to weaken the intensity of the specular region in the second series of measurements. Simulation and experimental results demonstrate that the utilization of these modulated illumination patterns for target scene measurement effectively mitigates interference from the specular surface during imaging. Consequently, the reconstructed image is capable of presenting more detailed information about the target scene other than the specular regions. Our work introduces a novel approach for imaging target scenes with specular surfaces and broadens the scope of applications for CGI in reality.

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Section: Introductionmentioning

confidence: 99%

Computational ghost imaging with adaptive intensity illumination for scenes featuring specular surfaces

Xiong,

Zhang,

et al. 2024

J. Opt.

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“…We constructed an imaging system called DMD camera that was applied on 3D shape measurement and noise removal 30 , 31 . The difference between DMD camera and single-pixel camera is mainly that the single photon detector is replaced by array charge coupled device (CCD).…”

Section: Introductionmentioning

confidence: 99%

Three-dimensional shape measurement for the steep surface using DMD camera

Zhao

Yang

2022

Sci Rep

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Three-Dimensional shape measurement has been confronted with the ambiguity on the steep surface. To address the problem, compressed sensing theory is employed to reconstruct phase shifting images in DMD camera. Specially, every CCD pixel in the region of interest is aligned to N × N DMD mirrors to construct DMD camera. The one-dimensional measurement matrices are chosen to collect the measured values on CCD pixel according to the directional judgement of original gradient image. Due to the enhancement of the spatial sampling frequency and the noise robustness, the reconstructed sinusoidal stripe images are utilized to obtain the three-dimensional model of the steep surface accurately. We measure the planes with various slopes to discuss the measurement capability. The comparative experiments show that our proposed method can correct the deformed phase and repair the defect on the steep surface.

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Study on microscopic fringe structured light measurement method for tiny and complex structural components

Wang

Yan²,

Liu³

et al. 2022

Appl. Phys. B

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Adaptive High-Dynamic Range Three-Dimensional Shape Measurement Using DMD Camera

Cited by 11 publications

References 23 publications

Computational ghost imaging with adaptive intensity illumination for scenes featuring specular surfaces

Computational ghost imaging with adaptive intensity illumination for scenes featuring specular surfaces

Three-dimensional shape measurement for the steep surface using DMD camera

Study on microscopic fringe structured light measurement method for tiny and complex structural components

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