Abstract
A new wavelet based video codec that uses human visual system coefficients is presented. In INTRA mode
of operation, wavelet transform is used to split the input frame into a number of subbands. Human Visual
system coefficients are designed for handheld videophone devices and used to regulate the quantization
stepsize in the pixel quantization of the high frequency subbands’ coefficients. The quantized coefficients
are coded using quadtreecoding scheme. In the INTER mode of operation, the displaced frame difference
is generated and a wavelet transform decorrelates it into a number of subbands. These subbands are
coded using adaptive vector quantization scheme. Results indicate a significant improvement in frame quality
compared to motion JPEG2000
of operation, wavelet transform is used to split the input frame into a number of subbands. Human Visual
system coefficients are designed for handheld videophone devices and used to regulate the quantization
stepsize in the pixel quantization of the high frequency subbands’ coefficients. The quantized coefficients
are coded using quadtreecoding scheme. In the INTER mode of operation, the displaced frame difference
is generated and a wavelet transform decorrelates it into a number of subbands. These subbands are
coded using adaptive vector quantization scheme. Results indicate a significant improvement in frame quality
compared to motion JPEG2000
| Original language | English |
|---|---|
| Pages | 1297-1299 |
| Number of pages | 3 |
| Publication status | Published - 2004 |
| Event | 12th European Signal Processing Conference - Vienna, Austria Duration: 6 Sept 2004 → 10 Sept 2004 |
Conference
| Conference | 12th European Signal Processing Conference |
|---|---|
| Abbreviated title | EUSIPCO 2004 |
| Country/Territory | Austria |
| City | Vienna |
| Period | 6/09/04 → 10/09/04 |
Keywords
- wavelet based video codec