System and method for transmitting picture or sound signals

Details System and method for transmitting picture or sound signals System and method for transmitting picture or sound signals

1995-11-01

1998-09-22

Chin, Tommy P.

Television

Image signal processing circuitry specific to television

Motion vector generation

348409, H04N 514, H04N 964, H04N 712, H04N 1102

Patent

active

058122192

ABSTRACT:
Due to a reduction of block artefacts in the reconstructed signal, lapped signal transforms are more suitable than non-lapped transforms for compressing picture and sound signals. Nevertheless, the known lapped orthogonal transform is still accompanied by the artefacts. A system and method are described for transmitting picture or sound signals in which the artefacts remain absent also upon substantial compression and in which orthogonality and phase linearity of the transform is maintained. The transform matrix may be constructed from any arbitrary orthogonal K*K basis matrix C. It is indicated how the basis matrix can be obtained, for example from the DCT.

REFERENCES:
patent: 5291281 (1994-03-01), Paik et al.
patent: 5311310 (1994-05-01), Jozawa et al.
patent: 5428395 (1995-06-01), Jeong
patent: 5455874 (1995-10-01), Ormsby et al.
"Lapped Transforms for Efficient Transform/Sub-Band Coding" IEEE Trans. on ASSP, vol. 38, No. 6, Jun. 1990, pp. 969-978.
"The Lot: Transform Coding Without Blocking Effects" IEEE Trans. on ASSP, Vol. 37, No. 4, Apr. 1989, pp. 553-559.
"Overlapped Transform Coding of Medical X-ray Images" M. Breeuwer, SPIE Medical Imaging 1994.

Affiliated with

Also associated with

Rating

System and method for transmitting picture or sound signals does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System and method for transmitting picture or sound signals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for transmitting picture or sound signals will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1627357