Paper Title:
Design of a Video Processor Based on FPGA
  Abstract

The design of a kind of video processor with the function of auto-focusing is introduced in this paper. The video processor receives digital 8-bit YCbCr video signal. With a piece of DDR2 SDRAM as frame buffer, the video processor realizes the function of format conversion, frame up-scaling and color space conversion. The paper proposes an improved gray scale differential auto-focus algorithm and calculates the focus value of the current image real-timely. Applying the mountain climbing searching strategy to control the moving of the focus motor, and realize the function of auto-focusing. The whole design is realized in VHDL and verified with Xilinx XUPV5-LX110T FPGA developing board.

  Info
Periodical
Chapter
Chapter 2: Signal and Image Processing in Industry
Edited by
Gary Yang
Pages
190-194
DOI
10.4028/www.scientific.net/AMR.429.190
Citation
Q. G. Zhang, B. Zhang, G. Zhang, "Design of a Video Processor Based on FPGA", Advanced Materials Research, Vol. 429, pp. 190-194, 2012
Online since
January 2012
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Price
$32.00
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