Design and realization of retina-like three-dimensional imaging based on a MOEMS mirror

Cao, Jie; Hao, Qun; Xia, Wei; Peng, Yuxin; Yang, Cheng; Mu, Jiaxing; Wang, Peng

doi:10.1016/j.optlaseng.2015.12.020

Cited by 24 publications

(12 citation statements)

References 22 publications

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“…To the best of our knowledge, the imaging principle divides the pulsed-laser 3D imaging system into two categories: scanning and non-scanning types 11 . For scanning pulsed-laser 3D imaging system (e.g., MEMS, scanning mirror, galvanometer scanner, and Risley prism pair), the FOV largely depends on scan range of scanning components and the capability to obtain a high resolution image relies largely on the high-resolution scanning angle and a large number of scanning steps of the scanning components, which results in a high time consumption 12 – 16 . Therefore, it suffers from a low imaging speed that limits its imaging efficiency.…”

Section: Introductionmentioning

confidence: 99%

Design and modeling of pulsed-laser three-dimensional imaging system inspired by compound and human hybrid eye

Cheng

Cao

Zhang

et al. 2018

Sci Rep

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A pulsed-laser three-dimensional imaging system inspired by compound and human hybrid eye is proposed. A diffractive optical element is used to enlarge field of view (FOV) of transmitting system and a receiving system consisting of a non-uniform microlens array, an aperture array, and an avalanche photodiode array is designed. The non-uniform microlens array is arranged on a curved surface to mimic large FOV feature of the compound eye. Meanwhile, the non-uniform microlens array is modeled to mimic space-variant resolution property of the human eye. On the basis of the proposed system, some simulation experiments are carried out. Results show that the entire FOV is up to 52°, and the resolution is 30 × 18. The proposed system has a high resolution in the center FOV and a low resolution in the peripheral FOV. The rotation and scaling invariances of the human eye are verified on the proposed system. The signal-to-noise ratio (SNR) increases with the increase in the number of rings and the maximum SNR locates at the outmost periphery area. This work is beneficial to the design of the pulsed laser three-dimensional imaging system with large FOV, high speed, and high resolution.

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Section: Introductionmentioning

confidence: 99%

Design and modeling of pulsed-laser three-dimensional imaging system inspired by compound and human hybrid eye

Cheng

Cao

Zhang

et al. 2018

Sci Rep

Self Cite

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“…Compound eyes and human eyes have been studied in regard to their remarkable properties for optical imaging [ 1 , 2 , 3 , 4 , 5 ]. Compound eye provides a large field of view (FOV), infinite depth of field (DOF), low aberrations and motion acuity, which can be used in many applications, such as high speed motion detection, large FOV surveillance and machine vision [ 6 , 7 , 8 , 9 ].…”

Section: Introductionmentioning

confidence: 99%

A Hybrid Bionic Image Sensor Achieving FOV Extension and Foveated Imaging

Hao

Wang

Cao

et al. 2018

Sensors

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Based on bionic compound eye and human foveated imaging mechanisms, a hybrid bionic image sensor (HBIS) is proposed in this paper to extend the field of view (FOV) with high resolution. First, the hybrid bionic imaging model was developed and the structure parameters of the HBIS were deduced. Second, the properties of the HBIS were simulated, including FOV extension, super-resolution imaging, foveal ratio and so on. Third, a prototype of the HBIS was developed to validate the theory. Imaging experiments were carried out, and the results are in accordance with the simulations, proving the potential of the HBIS for large FOV and high-resolution imaging with low cost.

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“…This technology can relieve the conflict between high spatial resolution and wide FOV. Recently, our team presented a log-polar 3D laser imaging system based on the scanning principle in [28]. We have also presented a log-polar 3D laser imaging system based on the non-scanning principle in [7,29].…”

Section: Introductionmentioning

confidence: 99%

Design and modeling of three-dimensional laser imaging system based on streak tube

et al. 2017

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In the streak tube laser imaging system, there are two conflicts: the first is between high spatial resolution and wide field of view (FOV). The second is between high temporal resolution and deep depth of field (DOF). In this paper, a new non-scanning streak tube laser imaging system is presented. A microlens array with three different apertures is used to non-uniformly collect data from the image plane so the conflict between high spatial resolution and wide FOV is relieved and the detectable range of system is also increased. A remapping fiber optics with special design is used to realign the image plane on the two photocathodes of streak tubes to realize the operation mode of the two streak tubes so the conflict between high temporal resolution and deep DOF is relieved. The mathematical model of the entire imaging system is established based on the range equation. The structure parameters of the receiving optical system are optimized in order to achieve the optimal utilization rate of light energy. In the third, three simulated contrast experiments are organized, and the experiment results demonstrate that the imaging system proposed in this paper possesses properties of higher spatial resolution, wider FOV, higher temporal resolution, deeper DOF, and larger detectable range.

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Design and realization of retina-like three-dimensional imaging based on a MOEMS mirror

Cited by 24 publications

References 22 publications

Design and modeling of pulsed-laser three-dimensional imaging system inspired by compound and human hybrid eye

Design and modeling of pulsed-laser three-dimensional imaging system inspired by compound and human hybrid eye

A Hybrid Bionic Image Sensor Achieving FOV Extension and Foveated Imaging

Design and modeling of three-dimensional laser imaging system based on streak tube

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