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《Computer Development & Applications》 2009-04
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A Design of High Resolution Camera for Video Presenter

Zhang Qigui et al  
A scheme of "DSP+FPGA+MCU" is adopted to design a new high resolution camera based on 800K pixels color CCD chipset.Image signal collected by CCD is converted through A/D,and then is sent to DSP and FPGA for processing.After accomplishing video format conversion and frame rate up-conversion,FPGA outputs image of XGA resolution and realizes an auto-focusing algorithm.According to focus information of FPGA and iris information of DSP,and combining determinate control method to control stepping motor of optical lens,MCU realizes auto focusing and auto iris.The camera is characteristic of high output resolution,high picture quality,easy for function extension and so on,and it is widely used in video presenter of education and commerce.
【Fund】: 太原理工大学技术开发项目(编号:203-24041221)
【CateGory Index】: TN948.41
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