Bilateral control-based compensation for rotation in imaging in scan imaging systems

Tian, Dapeng; Wang, Yutang; Wang, Fuchao; Zhang, Yupeng

doi:10.1117/1.oe.54.12.124104

Cited by 4 publications

(4 citation statements)

References 23 publications

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“…The disturbances were

d_{1}

in the SC and

d_{2}

in the IRC, as shown in Table 2. Three methods were compared: 1) PD tracking controller with DOB and no cooperation, 2) PD tracking controller with a DOB and a PD cooperation controller[30], and 3) ASMC tracking controller with a DOB and an ASMC cooperation controller. The experimental parameters are shown in Table 4, and the experimental results are shown in Figures 7 and 8.…”

Section: Experiments and Resultsmentioning

confidence: 99%

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Multi‐actuator control with modal switching and different disturbance for scanning imaging motion compensation

Gao

Wang

et al. 2021

IET Control Theory & Appl

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Scanning imaging can be used to obtain wide field-of-view, high-resolution remote-sensing images with a telescope lens. However, the motion between the image and the sensor causes blurring during scanning, which reduces the image quality. In this paper, a motion compensation method based on multi-actuator control with modal switching is proposed. In this method, the tracking controller realizes scanning and compensation; the cooperative controller reduces the relative motion that causes motion blur, and modal switching solves the travel limitation of the linear actuator. Further, to improve the control performance, an adaptive sliding mode controller is proposed and combined with a disturbance observer. The stability theorems for multi-actuator and modal switching are studied. Experimental results show that the accuracy, robustness, and frame rate of the proposed method improved compared with those of traditional methods. Compared with the non-cooperative structure using a PD controller, the root mean square error is reduced by 76.61%.

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“…The disturbances were

d_{1}

in the SC and

d_{2}

Section: Experiments and Resultsmentioning

confidence: 99%

“…This work mode is applied to motion compensation. In [30], the image rotation was compensated by bilateral control. Subsequently, image motion compensation was added to the scanning imaging system as an independent part [31].…”

Section: Introductionmentioning

confidence: 99%

Multi‐actuator control with modal switching and different disturbance for scanning imaging motion compensation

Gao

Wang

et al. 2021

IET Control Theory & Appl

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“…The control system is divided into two parts: one is to estimate and compensate the disturbance; the other is to conduct a closed-loop controller for command tracking (Liu et al, 2020). In Tian et al (2015), the bilateral control method based on position feedback and force feedback is applied to the photoelectric imaging system for the first time, and the image rotation is suppressed effectively. Therefore, the image 1 School of Information Engineering, Inner Mongolia University of Science and Technology, China rotation can be effectively eliminated by applying the bilateral control method to the photoelectric imaging system.…”

Section: Introductionmentioning

confidence: 99%

Application of bilateral sliding mode predictive compound control in photoelectric tracking system

Ren

Yimin

2023

Transactions of the Institute of Measurement and Control

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This article focuses on the stable imaging problem of photoelectric imaging system that depends on the synchronous rotation of mirror and detector. When there is a relative movement between the mirror and the detector, it will cause image rotation, resulting in information loss and reduced tracking accuracy. It is difficult to achieve the high-precision synchronous movement between the mirror and the detector using the traditional unilateral control method. Different from the existing results of the traditional unilateral tracking method, this paper introduces the bilateral control structure in the field of robot teleoperation and proposes a novel compound control strategy based on the bilateral control structure. First, a robust disturbance observer is proposed to reduce the disturbance of the system, in which a new robust H∞ mixed sensitivity control algorithm is designed to optimize the filter. Then, a novel generalized sliding mode predictive (NSMP) control strategy based on hybrid reaching law is proposed to eliminate the image rotation problem caused by time delay. Besides, a new power function is designed to replace the switching function in the reaching law to reduce chattering. Finally, the finite time theory and the Lyapunov theory are used to prove that the proposed control scheme can ensure that the system is stable and reach its steady state in a finite time. The simulation results show the effectiveness of the proposed control scheme.

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“…By extending the bilateral control principle proposed for remote teleoperation of robots to the field of optical imaging, we proposed a new idea for image motion compensation based on position and torque control. Such method can theoretically enable perfectly synchronized motions between the scanning mirror and compensation unit, thereby yielding high-precision compensation for image rotation [20]. Nonetheless, this method still employs a traditional proportion-integration-differentiation (PID) control for designing the controller.…”

Section: Introductionmentioning

confidence: 99%

Long Integral Time Continuous Panorama Scanning Imaging Based on Bilateral Control with Image Motion Compensation

Tian

Wang

et al. 2019

Remote Sensing

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Urban remote sensing with moving carriers enables comprehensive monitoring of an urban area. High spatial resolution and wide covering are always required to improve the performance and efficiency of remote sensing. Continuous scanning imaging is a feasible solution. However, imaging motion degrades the performance of a remote sensing system. Rotating motion leads to the loss of key urban morphology information of a panorama imaging. Image translation results in blurry images. For high spatial resolution and high efficiency imaging with low illumination condition, such as imaging at dusk, long-focus lens and long integral time must be further utilized, which makes the problem more severe. In this paper, a novel image motion compensation method is proposed to compensate for image rotation and image translation simultaneously. A quantitative description of image motion, including both image rotation and image translation, is first developed based on the principle of geometrical optics and then analyzed in detail through numerical simulations. Furthermore, a comprehensive image rotation compensation method is developed based on four-channel bilateral control with sliding mode controller, at the same time image translation compensation is performed according to the quantitative relationship of the motion of the scan mirror and image translation compensator. The experimental results show that the proposed method provides effective compensation for image rotation and image translation. This enables acquisition of high spatial resolution urban panoramic images.

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Bilateral control-based compensation for rotation in imaging in scan imaging systems

Cited by 4 publications

References 23 publications

Multi‐actuator control with modal switching and different disturbance for scanning imaging motion compensation

Multi‐actuator control with modal switching and different disturbance for scanning imaging motion compensation

Application of bilateral sliding mode predictive compound control in photoelectric tracking system

Long Integral Time Continuous Panorama Scanning Imaging Based on Bilateral Control with Image Motion Compensation

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