Abstract
The TAT (time-axis transform) system is an image compression system which reduces the pixels selectively from the nondetail portions of the picture. The pixels can be reduced to one half or less, keeping high resolution in the detail portions. Thus, TAT is suitable for the compression of high-quality images. It can be applied to both analog and digital systems. A 2-D TAT system using two-dimensional correlation is implemented and compression experiment is conducted. A high-quality picture signal with a bandwidth of 7 MHz is compressed to 3. 5 MHz. Performance for both still and moving pictures is good. The difference between the reconstructed and the original pictures is hardly observed. Thus, the feasibility and effects of the TAT system is verified. Furthermore, the simulation experiment of the 3-D-TAT using three-dimensional correlation is made for the HDTV signal. A mode decision algorithm of the four-mode TAT is developed and the HDTV compression to a bandwidth of 8 MHz is successfully demonstrated.
| Original language | English |
|---|---|
| Title of host publication | Unknown Host Publication Title |
| Publisher | Ohmsha Ltd |
| Pages | 416-420 |
| Number of pages | 5 |
| ISBN (Print) | 4274031888 |
| Publication status | Published - 1987 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Engineering(all)
Cite this
TAT SYSTEM FOR HIGH QUALITY IMAGE COMPRSSION. / Tanimoto, M.; Kageyama, M.; Ohta, T.; Shibata, K.; Ryu, F.
Unknown Host Publication Title. Ohmsha Ltd, 1987. p. 416-420.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - TAT SYSTEM FOR HIGH QUALITY IMAGE COMPRSSION.
AU - Tanimoto, M.
AU - Kageyama, M.
AU - Ohta, T.
AU - Shibata, K.
AU - Ryu, F.
PY - 1987
Y1 - 1987
N2 - The TAT (time-axis transform) system is an image compression system which reduces the pixels selectively from the nondetail portions of the picture. The pixels can be reduced to one half or less, keeping high resolution in the detail portions. Thus, TAT is suitable for the compression of high-quality images. It can be applied to both analog and digital systems. A 2-D TAT system using two-dimensional correlation is implemented and compression experiment is conducted. A high-quality picture signal with a bandwidth of 7 MHz is compressed to 3. 5 MHz. Performance for both still and moving pictures is good. The difference between the reconstructed and the original pictures is hardly observed. Thus, the feasibility and effects of the TAT system is verified. Furthermore, the simulation experiment of the 3-D-TAT using three-dimensional correlation is made for the HDTV signal. A mode decision algorithm of the four-mode TAT is developed and the HDTV compression to a bandwidth of 8 MHz is successfully demonstrated.
AB - The TAT (time-axis transform) system is an image compression system which reduces the pixels selectively from the nondetail portions of the picture. The pixels can be reduced to one half or less, keeping high resolution in the detail portions. Thus, TAT is suitable for the compression of high-quality images. It can be applied to both analog and digital systems. A 2-D TAT system using two-dimensional correlation is implemented and compression experiment is conducted. A high-quality picture signal with a bandwidth of 7 MHz is compressed to 3. 5 MHz. Performance for both still and moving pictures is good. The difference between the reconstructed and the original pictures is hardly observed. Thus, the feasibility and effects of the TAT system is verified. Furthermore, the simulation experiment of the 3-D-TAT using three-dimensional correlation is made for the HDTV signal. A mode decision algorithm of the four-mode TAT is developed and the HDTV compression to a bandwidth of 8 MHz is successfully demonstrated.
UR - http://www.scopus.com/inward/record.url?scp=0023572605&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0023572605&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:0023572605
SN - 4274031888
SP - 416
EP - 420
BT - Unknown Host Publication Title
PB - Ohmsha Ltd
ER -