Title :
A new video front-end processing system
Author :
Kitagata, Kazushi ; Kojima, Masanori ; Yamada, Kunihiro ; Shibata, Hiroshi
Author_Institution :
Fac. of Inf. Sci., Osaka Inst. of Technol., Japan
fDate :
5/1/2001 12:00:00 AM
Abstract :
This paper describes a new video front-end processing system having improved resolution of digitizing. For this improvement two techniques are investigated, one is the summation of previous three A/D conversion results, and the other is 10° shift sampling. Next, an experimental system using a programmable logic device was developed and evaluated. As a result the noise level was decreased by 10 dB. Hence the validity of the proposal was confirmed. Because of this improvement, this front-end processing system does not require any analog automatic color controller and the proposal is suitable for an SOC (system on a chip), reducing the scale of the analog circuit
Keywords :
analogue processing circuits; analogue-digital conversion; programmable logic devices; video equipment; video signal processing; 10° shift sampling; A/D conversion; noise level; programmable logic device; video front-end processing system; Analog circuits; Automatic control; Color; Colored noise; Control systems; Noise level; Programmable logic devices; Proposals; Sampling methods; System-on-a-chip;
Journal_Title :
Consumer Electronics, IEEE Transactions on
