Global Patent Index - EP 1013095 A2

EP 1013095 A2 2000-06-28 - IMAGE SIGNAL PROCESSING METHOD AND APPARATUS

Title (en)

IMAGE SIGNAL PROCESSING METHOD AND APPARATUS

Title (de)

VERFAHREN UND VORRICHTUNG ZUR BILDSIGNALVERARBEITUNG

Title (fr)

PROCEDE ET APPAREIL DE TRAITEMENT DU SIGNAL IMAGE

Publication

EP 1013095 A2 (EN)

Application

EP 98943163 A

Priority

  • SE 9801597 W
  • SE 9703233 A

Abstract (en)

[origin: WO9913646A2] A processing method and apparatus for use in an image signal coding system for coding an input image signal into a compressed output image signal, the image signal comprising digitized image data in a plurality of pixels. Image data preferably being in the frequency domain, is selectively filtered such that image quality of said compressed output signal is prioritised by retaining pixel coefficients contributing significantly to image quality and filtering out the rest of the pixel coefficients under first conditions. Under other conditions, the image data is filtered such that a high achievable compression factor for said set of pixel coefficients is prioritised over image quality of said compressed output signal by filtering out also pixel coefficients contributing significantly to image quality.

IPC 1-7 (main, further and additional classification)

H04N 7/30

IPC 8 full level (invention and additional information)

H04N 7/26 (2006.01); H04N 7/30 (2006.01)

CPC (invention and additional information)

H04N 19/80 (2014.11); H04N 19/117 (2014.11); H04N 19/139 (2013.01); H04N 19/14 (2014.11); H04N 19/176 (2013.01); H04N 19/18 (2014.11); H04N 19/186 (2014.11); H04N 19/48 (2014.11); H04N 19/60 (2014.11); H04N 19/146 (2014.11); H04N 19/152 (2014.11)

Citation (search report)

See references of WO 9913646A3

Designated contracting state (EPC)

DE ES FR GB IT

EPO simple patent family

WO 9913646 A2 19990318; WO 9913646 A3 19990527; AU 9101598 A 19990329; EP 1013095 A2 20000628; SE 512832 C2 20000522; SE 9703233 D0 19970908; SE 9703233 L 19990309

INPADOC legal status


2008-09-24 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20080401

2003-10-22 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: PINNACLE SYSTEMS INC.

2000-06-28 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000306

2000-06-28 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

- Designated State(s): DE ES FR GB IT