Digital 3D/stereoscopic video compression technique utilizing tw

Details Digital 3D/stereoscopic video compression technique utilizing tw Digital 3D/stereoscopic video compression technique utilizing tw

1995-05-26

1997-03-18

Au, Amelia

Television

Stereoscopic

Signal formatting

348409, 348 47, H04N 1300

Patent

active

056127359

ABSTRACT:
Efficient digital compression of 3D/stereoscopic video is achieved by a novel technique in which various views forming 3D/stereoscopic video are coded by utilizing the redundancies among the views. Coding is performed in a manner compatible with existing equipment to allowing decoding of one layer of video for display on normal (i.e., monoscopic) displays. The motion compensated discrete cosine transform ("DCT") coding framework of existing standards such as the Motion Pictures Expert Group-Phase 2 ("MPEG-2") video standard is exploited, and when necessary extended, to result in highly efficient, yet practical, coding schemes. In constrast with known techniques of encoding the two views forming stereoscopic video which rely on the use of a disparity estimate between the two views (where one of the views is the reference, coded by itself and the other is disparity compensated predicted and coded with respect to the reference view), the present techniques utilize two disparity estimates: one disparity estimate which allows forward prediction and other disparity estimate allowing backward prediction with respect to the reference view.

REFERENCES:
patent: 5142642 (1992-08-01), Sudo
patent: 5296926 (1994-03-01), Nagura
patent: 5329365 (1994-07-01), Uz

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