Title:
ウォーターマーク検出のための方法及び装置
Document Type and Number:
Japanese Patent JP2005537737
Kind Code:
A
Abstract:
A graphics card of a computer system is configured to detect watermarks within a video signal that includes one or more windows of a display. The frames of the video signal are analyzed to locate image areas in which the video signal changes, and a bounding box around these areas of change is defined as an area(s) of interest. Watermark detection is then performed within the area(s) of interest.
Inventors:
Tulstra, Johann Sae
Ostfern, Jobs
Ran Herar, Herit Say
Karkel, Antonius
Maes, Maurice Ye Yeah-Bay
Ostfern, Jobs
Ran Herar, Herit Say
Karkel, Antonius
Maes, Maurice Ye Yeah-Bay
Application Number:
JP2004532399A
Publication Date:
December 08, 2005
Filing Date:
August 12, 2003
Export Citation:
Assignee:
Koninklijke Philips Electronics N.V.
International Classes:
H04N7/26; G06T1/00; G11B20/00; H04N1/387; H04N5/76; H04N5/913; H04N5/775; H04N5/85; (IPC1-7): H04N1/387; H04N7/24
Attorney, Agent or Firm:
Tadahiko Ito
Shinsuke Onuki
Tadashige Ito
Shinsuke Onuki
Tadashige Ito