Television – Bandwidth reduction system – Data rate reduction
Patent
1998-05-19
2000-12-12
Lee, Young
Television
Bandwidth reduction system
Data rate reduction
348416, 348699, H04N 712
Patent
active
061605840
ABSTRACT:
A motion detecting and motion compensative prediction circuit includes an integer pixel accuracy calculating unit for carrying out calculation for detecting, with an integer pixel accuracy, a portion most approximate to an object of a current frame from a predetermined reference frame, and a half pixel accuracy calculating and motion compensative prediction unit (including a buffer memory, a re-arranging unit for rearranging a picture data supplied thereto through the buffer memory by a pixel unit, and an interpolation unit for subjecting the picture data re-arranged by the re-arranging unit to linear interpolation calculation). The buffer memory, the re-arranging unit and the interpolation means of the half-pixel accuracy calculating and motion compensative prediction unit are commonly employed both of a processing for detecting a half-pixel accuracy motion vector based on the calculation result of the integer pixel accuracy calculating unit and a processing for generating a predictive-coded picture by using the motion vector.
REFERENCES:
patent: 5488419 (1996-01-01), Hui et al.
patent: 5623313 (1997-04-01), Naveen
Kananen Ronald P.
Lee Young
Sony Corporation
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