Pulse or digital communications – Bandwidth reduction or expansion – Television or motion video signal
Reexamination Certificate
2005-08-02
2005-08-02
Le, Vu (Department: 2613)
Pulse or digital communications
Bandwidth reduction or expansion
Television or motion video signal
C375S240170, C348S699000
Reexamination Certificate
active
06925121
ABSTRACT:
A system of detecting a motion vector for an object block in a current frame of an orthogonally transformed video with respect to a stored reference frame. The motion vector is detected by: extracting a predetermined pattern of lower frequency components from the object block; orthogonally inverse transforming the extracted lower frequency components within the pattern to yield the pattern of pixel data; searching the reference frame for a block having a maximum correlation with the pattern of pixel data; and calculating the motion vector from the object block to the block having a maximum correlation. As an orthogonal transform, DCT (discrete cosine transform) is preferable. Creating a row and a column image comprising sums obtained by adding all the pixels in each column and each row of the object block and applying the above searching and calculating process to the row and the column image enables the motion vector detection from a normal or noncompressed video.
REFERENCES:
patent: 5631744 (1997-05-01), Takeuchi et al.
patent: 5832120 (1998-11-01), Prabhakar et al.
patent: 5973741 (1999-10-01), Takashima et al.
patent: 6002801 (1999-12-01), Strongin et al.
patent: 6025879 (2000-02-01), Yoneyama et al.
patent: 6028634 (2000-02-01), Yamaguchi et al.
patent: 6115070 (2000-09-01), Song et al.
patent: 6134270 (2000-10-01), Mou
Information technology—Coding of moving pictures and associated audio for digital storage media at up to about 1,5 Mbit/s—Part 2: Video; ISO/IEC 11172-2:1993(E); pp. 1-9.
Information technology—Generic coding of moving pictures and associated audio information: Video; ISO/IEC 13818-2:1996(E); pp., 5-9.
Komiya Daisaku
Uenoyama Tsutomu
Yamada Kazunori
Yoshio Hiroaki
Gopstein Israel
Le Vu
Matsushita Electric - Industrial Co., Ltd.
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