Abstract
A pixel-level analog-to-digital (A-D) conversion method suitable for digital vision chips is proposed. In this method, each quantization boundary is compared by determining whether the signal level integrated for a certain time has reached a certain voltage, where both the time and voltage are properly controlled by software for each boundary. We derive an algorithm to generate an optimal controlling schedule to realize an arbitrary A-D conversion scale subject to the condition that noise is minimized. Experimental results have shown that images with given A-D characteristics can be obtained with low noise.
Original language | English |
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Pages (from-to) | 385-390 |
Number of pages | 6 |
Journal | Kyokai Joho Imeji Zasshi/Journal of the Institute of Image Information and Television Engineers |
Volume | 57 |
Issue number | 3 |
DOIs | |
Publication status | Published - 2003 |
Externally published | Yes |
ASJC Scopus subject areas
- Media Technology
- Computer Science Applications
- Electrical and Electronic Engineering