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 |
|---|---|
| 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