Share Email Print
cover

Proceedings Paper

Design and implementation of non-standard video acquisition system
Author(s): Qingwang Qin; Tingfa Xu; Guoqiang Ni
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

Non-standard video acquisition is a common requirement in science research, industrial detection and medical instrument. A general analog video signal acquisition scheme using TI DSP video port cooperates with video ADC AD9985 is proposed in this paper. FPGA is used to package AD9985 output data into 16bit width and decrease half of pixel clock frequency, in order to resolve video port bandwidth bottleneck problem. The experiments show that the system can capture a variety of analog video formats, including non-standard video and standard video signals. Resolution of captured video can be up to 2048×2048 in case of frame rate under 30fps, and the captured frame rate can reach up to 400fps in case of resolution under 640×480. The image quality obtained is quite well, and system parameters can be adjusted conveniently.

Paper Details

Date Published: 28 January 2009
PDF: 8 pages
Proc. SPIE 7156, 2008 International Conference on Optical Instruments and Technology: Optical Systems and Optoelectronic Instruments, 71562M (28 January 2009); doi: 10.1117/12.807102
Show Author Affiliations
Qingwang Qin, Beijing Institute of Technology (China)
Tingfa Xu, Beijing Institute of Technology (China)
Guoqiang Ni, Beijing Institute of Technology (China)


Published in SPIE Proceedings Vol. 7156:
2008 International Conference on Optical Instruments and Technology: Optical Systems and Optoelectronic Instruments

© SPIE. Terms of Use
Back to Top