Recent development of 3D imaging laser sensor in Mitsubishi Electric Corporation

Imaki, Masaharu; Tsuji, Hiroyuki; Hirai, Akihito; Kameyama, Shumpei

doi:10.1117/12.2035310

Cited by 3 publications

(3 citation statements)

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“…Therefore, it has proven to be a vital and powerful technology for many applications including topographic, 16,17 terrain visualization, 18,19 navigation, 20,21 medical diagnostics, 22 object identification 23–25 . To the best of our knowledge, according to the difference of imaging principle, the existing pulsed‐laser lidar system can be generally categorized into two types: scanning lidar and flash lidar 26–28 . For scanning pulsed‐laser lidar, an optical scanning unit is used to steer the pulsed beam point‐by‐point to the desired angle across the targeted scene and then a single detector is employed to detect the echo pulse reflected from the target surface for realizing three‐dimensional imaging.…”

Section: Introductionmentioning

confidence: 99%

“…[23][24][25] To the best of our knowledge, according to the difference of imaging principle, the existing pulsed-laser lidar system can be generally categorized into two types: scanning lidar and flash lidar. [26][27][28] For scanning pulsed-laser lidar, an optical scanning unit is used to steer the pulsed beam point-by-point to the desired angle across the targeted scene and then a single detector is employed to detect the echo pulse reflected from the target surface for realizing three-dimensional imaging. A micro-electro-mechanical system (MEMS) mirror, [29][30][31] polygon mirror, 32,33 galvanometer scanner, 34 and Risley prism pair [35][36][37][38] are often employed as the optical scanning unit.…”

Section: Introductionmentioning

confidence: 99%

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Development of pulsed‐laser three‐dimensional imaging flash lidar using APD arrays

Hao

Tao

Cao

et al. 2021

Micro & Optical Tech Letters

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Over the past two decades, pulsed‐laser three‐dimensional imaging flash lidar using avalanche photodiode (APD) arrays has attracted extensive research interest due to its great potential for both military and civilian applications. This invited paper gives a brief review of the state‐of‐art pulsed‐laser three‐dimensional imaging flash lidar using APD arrays. The principle of the pulsed‐laser three‐dimensional imaging flash lidar using APD arrays is briefly introduced. According to the working mode of the APD arrays, we divide the current flash lidar into two types: the linear‐mode and the Geiger‐mode. The performances of the pulsed‐laser three‐dimensional imaging flash lidar using APD arrays working at linear‐mode and the Geiger‐mode are summarized. The opportunities and challenges in this field are also discussed. This review is expected to provide a snapshot of the current landscape of flash lidar using APD arrays to attract more interest in this field.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Development of pulsed‐laser three‐dimensional imaging flash lidar using APD arrays

Hao

Tao

Cao

et al. 2021

Micro & Optical Tech Letters

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“…Recently, it has been used extensively in a variety of fields such as target recognition, robotics, terrain visualization, medical diagnostics, and vehicle navigation [1][2][3][4]. Generally, three-dimensional laser imaging systems can be divided into two categories: scanning and non-scanning types [5,6]. The imaging speed of a scanning laser imaging system is low due to the existence of the scanning structure.…”

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

Cao

Hao

Xia

et al. 2016

Optics and Lasers in Engineering

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Recent development of 3D imaging laser sensor in Mitsubishi Electric Corporation

Cited by 3 publications

References 0 publications

Development of pulsed‐laser three‐dimensional imaging flash lidar using APD arrays

Development of pulsed‐laser three‐dimensional imaging flash lidar using APD arrays

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

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

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