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The Patent Office Journal 11/08/2006 14535
(12) PATENT APPLICATION PUBLICATION
(19) INDIA
(21) Application No.: 01410/KOLNP/2004
A
(22) Date of filing of Application: 23/09/2004
(43) Publication Date: 11/08/2006
(54) Title of the invention: METHODS AND APPARATUS FOR FAST BLOCK MOTION DETECTION
(51) International classification
:
H04N 7/12
(31) Priority Document No
: 10/107,981
(32) Priority Date
: 25.03.2002
(33) Name of priority country
:
USA
(86) International Application No and
Filing Date
:
:
PCT/US03/007809
14.03.2003
(87) International Publication No
: WO 03/084070
(61) Patent of addition to Application No : NA
Filed on
: NA
(62) Divisional to Application No
: NA
Filed on
: NA
(71) Name of Applicant: CITRIX ONLINE LLC.
Address of the Applicant:
5385 HOLLISTER AVENUE #111, SANTA BARBARA,
CA 9311, UNITED STATES OF AMERICA
(72) Name of the Inventor:
CHRISTIANSEN BERND O
Filed U/S 5(2) before The Patents (Amendment)
Act, 2005: NO
(57) Abstract:
A method, system, and/or apparatus for quickly detecting
blocks or regions in an image whose pixels that can be
coded efficiently by a pointer to the same block occurring
in a reference image. The reference image is shared
between an encoder and a corresponding decoder. one
embodiment of the encoder quickly detects such blocks
in an image by: (a) defining features such that
substantially fewer features occur in an image than
pixels, (b) correlating features in an image to a
corresponding feature in the reference image, (c)
estimating a displacement vector representative of the
displacement of the correlated features, (d) estimating a
seed point within the displaced block from which to grow
the block, and (e) growing the displaced block to
determine its size, shape, and/or dimensions.
(FIG. 11)
