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Articles by Houliang Qian
Total Records ( 2 ) for Houliang Qian
  Wei Chen , Zhongqiang Tang and Houliang Qian
  Precision of three-dimensional space plays a vital role for the robot to perform tasks accurately. This study designs a camera image acquisition system by using rotating linear laser beam. First, the control of actuator is realized by serial communication and the 2D image is captured from lines to surface, then denoise processing calibration is carried out by using Open CV. By using Irrlicht3D engine, the point cloud data is to be rendered to convert the 2D images to the 3D effect. Robot’s collection on external image is achieved through the study of Open CV learning that combined with VC2008.
  Wei Chen , Houliang Qian , Hanqi Yu , Hu Feng and Gui Tong
  In order to solve the high frequency oscillation generated from the video signal of the camera, the paper proposes a method to improve the stability of high frequency oscillation of common sensor signal which means the high frequency oscillation signal generated from the sensor module can increase the phase margin of the unstable signal through PD controller, thus produces a stable video signal and then through the circuit of AGC (Automatic Gain Control), the automatic compensation of the frequency can be achieved and finally the fourth-order low-pass circuit is used to meet the requirement of cutoff frequency of the sensor signal processing and the stability of the signal and the high frequency performance can be ultimately improved.
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