Chi-Cheng Cheng

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Visual servo can be achieved by extracting motion information from the optical flow, defined as the apparent motion of brightness patterns of an image. Control performance using this technique fully depends on accurate estimation of the flow velocities. It appears that most correct values of the optical flow usually locate at the regions with image(More)
—Predictive control employs future and past information to maintain servo performance and stability in uncertain environment. Nevertheless, nonlinear friction and unknown disturbances still challenge application of predictive control to precision positioning in typical electromechanical transmission systems due to strict demands on accuracy and control(More)
How can the compound eye of insects capture the prey so accurately and quickly? This interesting issue is explored from the perspective of computer vision instead of from the viewpoint of biology. The focus is on performance evaluation of noise immunity for motion recovery using the single-row superposition-type planar compound-like eye (SPCE). The SPCE(More)
General Summary Dr. Cheng's research interests span the fields of mechatronics, dynamic systems and control, and sensor and measurement, including but not limited to: integrated design and control of electro-mechanical systems, controller implementation with the limitation of finite wordlength, precision motion control, and adaptive sampling and measurement(More)