Investigation of various video compression technologies: H.263, H263+, L and MPEG-4
|
Wavelet compression of binary terrain data for VRML applications
-
current methods allow only 5:1 compression due to lettering
-
solution: binary image estimation in separate color spaces, binary image extraction, difference encoding
|
Available implementation
-
Intel's Indeo Video 4.1 employs partly wavelet-based motion estimation and compensation technologies, QSIF (160x120)
-
Horizons Technology Power!Video, Intel's competition
-
Summus, Ltd (Irmo, SC) - several platforms, no video yet
-
VDOLive by VDOnet - wavelet based video codec, QSIF, gray scale, delivery over 28.8 Kbps
|
Our focus: decoding, wavelet player
-
video server with scalable wavelet compressor
-
motion estimation and prediction techniques needed to satisfy real time, low bandwidth and quality requirements
|