Effects and Correction of Camera Shaking in Stereo Measurement

Linhong, 邬琳红 Wu; Jinbo, 刘进博 Liu; Xiaohu, 张小虎 Zhang; Gang, 王刚 Wang; Cong, 孙聪 Sun

doi:10.3788/lop53.101504

Cited by 1 publication

(2 citation statements)

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“…R WT and T WT can be solved by the poseposition estimation algorithm described in Section 3.1.1. Therefore, according to equation (6), the relationship between measuring camera coordinate system and the world coordinate can be expressed by Journal of Sensors…”

Section: Real-time Pose-position Relationship Between Thementioning

confidence: 99%

“…Many works try to overcome the influence of disturbance factors such as environmental vibration and improve the accuracy of the intrinsic and extrinsic parameters. Some works, such as Yu et al [5], Wu et al [6], and Wu et al [7], compensate the camera shake referring to the known control points in the scene. Their methods effectively overcome the camera shake caused by the insufficient platform accuracy and thus ensure the accuracy of the extrinsic parameters.…”

Section: Introductionmentioning

confidence: 99%

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A Real‐Time Deformation Monitoring Method for Large‐Scale Structure Based on Relay Camera

Liu

2021

Journal of Sensors

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In the process of the deformation monitoring for large-scale structure, the mobile vision method is often used. However, most of the existent researches rarely consider the real-time property and the variation of the intrinsic parameters. This paper proposes a real-time deformation monitoring method for the large-scale structure based on a relay camera. First, we achieve the real-time pose-position relationship by using the relay camera and the coded mark points whose coordinates are known. The real-time extrinsic parameters of the measuring camera are then solved according to the constraint relationship between the relay camera and the measuring camera. Second, the real-time intrinsic parameters of the measuring camera are calculated based on the real-time constraint relationship among the extrinsic parameters, the intrinsic parameters, and the fundamental matrix. Finally, the coordinates of the noncoded measured mark points, which are affixed to the surface of the structure, are achieved. Experimental results show that the accuracy of the proposed method is higher than 1.8 mm. Besides, the proposed method also possesses the real-time and automation property.

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Section: Real-time Pose-position Relationship Between Thementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%