Design of a Video Processor Based on FPGA

Qi Gui Zhang; Bo Zhang; Gang Zhang

doi:10.4028/www.scientific.net/AMR.429.190

Paper Titles

Dynamic Analysis and Design of the Rhombic Drive of Stirling Engine
p.165

Simulation of Power Quality Using S-Transform
p.172

Channel Estimating Based on Space-Time-Frequency Pilot for MIMO-OFDM
p.179

A 3G Video Phone Solution for Reducing the Delay of Video Data
p.186

Design of a Video Processor Based on FPGA
p.190

Analysis of Electrocardio Signal Based on Approximate Entropy
p.195

Study on Safety Assessment Modeling in Sijiaying Open-Pit Iron Mine
p.200

Mining Plan Optimization Based on Linear Programming in Shirengou Iron Mine
p.206

Air Quality Monitoring System Based on LabVIEW
p.210

HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 429Design of a Video Processor Based on FPGA

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.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Advanced Materials Research (Volume 429)

Pages:

190-194

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.429.190

Citation:

Cite this paper

Online since:

January 2012

Authors:

Qi Gui Zhang, Bo Zhang, Gang Zhang

Keywords:

Auto-Focusing, DDR2 SDRAM, Field-Programmable Gate Array (FPGA), Frame Up-Scaling, Video Processor

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] Xilinx compony. ML505/ML506/ML507 Getting Started Tutorial, [Online]. Availabe: http: /www. xilinx. com.

Google Scholar

[2] Subbarao M, Nikzad A. Focusing Techniques [J]. Optical Engineering, 1993, 32(11): 2824-2836.

Google Scholar

[3] Kazushige Ooi, Keiji Izumi, Mitsuyuki Nozaki, etal. AN ADVANCED AUTOFOCUS SYSTEM FOR VIDEO CAMERA USING QUASI CONDITION REASONING [J]. IEEE Transactions on Consumer Electronics, 1990, 36(3): 526-530.

DOI: 10.1109/30.103169

Google Scholar

[4] Kang-Sun Choi, Sung-Jae Ko. NEW AUTOFOCUSING TECHNIQUE USING THE FREQUENCY SELECTIVE WEIGHTED MEDIAN FILTER FOR VIDEO CAMERAS [J]. IEEE Transactions on Consumer Electronics, 1999, 45(3): 820-827.

DOI: 10.1109/30.793616

Google Scholar

[5] Zhou Chang-guo, Kohn Leslie, Rice Daniel, etal. MPEG video decoding with the ultraSPARC visual instruction set[J]. IEEE Computer Society Int ernational Conference, 1995: 470-475.

DOI: 10.1109/cmpcon.1995.512424

Google Scholar

[6] Chun-Te Chen, Liang-Gee Chen, Jue-Hsuan Hsiao. VLSI IMPLEMENTATION OF A SELECTIVE MEDIAN FILTER [J]. IEEE Transactions on Consumer Electronics, 1996, 42(1): 33-42.

DOI: 10.1109/30.485459

Google Scholar

[7] Xilinx compony. Virtex-5 FPGA User Guide, [Online]. Availabe: http: /www. xilinx. com.

Google Scholar