Researching | Optical Flow Estimation Algorithm of Event Sensor Based on Improved Plane Fitting

Laser & Optoelectronics Progress, Volume. 60, Issue 14, 1415001(2023)

Optical Flow Estimation Algorithm of Event Sensor Based on Improved Plane Fitting

Shuang Guo^1,2, Jiangtao Xu^1,2、*, Zhiyuang Gao^1,2, and Lei Zhang^1,2,3

Author Affiliations

¹School of Microelectronics, Tianjin University, Tianjin 300072, China

²Tianjin Key Laboratory of Imaging and Sensing Microelectronic Technology, Tianjin 300072, China

³School of Software and Communication, Tianjin Sino-German University of Applied Sciences, Tianjin 300350, China

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Figures&Tables (9)

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Figures & Tables(9)

Fig. 1. Plane-fitting optical flow estimation for SAE^[20]

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Fig. 2. Framework of improved plane-fitting optical flow estimation algorithm

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Fig. 3. Spatially collinear arrangements of events

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Fig. 4. Oblique motion checkerboard experiment

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Fig. 5. Horizontal motion Garfield experiment

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Fig. 6. Rotating motion disk experiment

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Fig. 7. Rotating motion red bar experiment

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Fig. 8. Comparison of true value and estimated rotation angle

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Table 1. Evaluation of optical flow estimations for different algorithms

Table 1. Evaluation of optical flow estimations for different algorithms

Algorithm	E_AEE /%			E_AAE /（^o）			Processing time per event / $μ s$
Algorithm	chessboard	Garfield	disk	chessboard	Garfield	disk	Processing time per event / $μ s$
LP_ori	75.29	89.51	59.87	13.37	25.68	28.03	4.37
LP_rob	56.87	68.03	46.73	10.22	19.75	21.88	0.83
LP_reg	38.13	46.26	31.22	8.12	15.61	17.32	0.61
Proposed algorithm	30.27	37.05	25.14	7.14	13.76	15.38	0.67

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Shuang Guo, Jiangtao Xu, Zhiyuang Gao, Lei Zhang. Optical Flow Estimation Algorithm of Event Sensor Based on Improved Plane Fitting[J]. Laser & Optoelectronics Progress, 2023, 60(14): 1415001

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Paper Information

Category: Machine Vision

Received: Jul. 8, 2022

Accepted: Aug. 20, 2022

Published Online: Jul. 17, 2023

The Author Email: Jiangtao Xu (xujiangtao@tju.edu.cn)

DOI:10.3788/LOP222029

Topics

laser devices and laser physics

Lasers and Laser Optics

laser manufacturing

Instrumentation, Measurement and Metrology