EP 1490834 A2 20041229 - CLASSIFYING PIXELS AS NATURAL OR SYNTHETIC IMAGE CONTENT
Title (en)
CLASSIFYING PIXELS AS NATURAL OR SYNTHETIC IMAGE CONTENT
Title (de)
KLASSIFIZIERUNG VON PIXELN ALS NATÜRLICHEN ODER SYNTHETISCHEN BILDINHALT
Title (fr)
ANALYSE D'UNE IMAGE COMPOSEE D'UNE MATRICE DE PIXELS
Publication
Application
Priority
- EP 03708399 A 20030312
- EP 02076184 A 20020326
- IB 0301100 W 20030312
Abstract (en)
[origin: WO03081533A2] Method of analyzing an image composed of a matrix of pixels, each pixel being defined by at least one parameter value arranged in a parameter matrix (Y). The method comprises the steps of performing a differentiation operation on the parameter matrix (Y) resulting in a plurality of differentiation entries (D) arranged in a matrix. Sets of neighboring differentiation entries having nearly the same differentiation entry are determined. A path length is determined for the pixels in each set, indicating a number of entries in that set. Based on the path length and differentiation entry, a pixel is classified as natural or synthetic image content.
IPC 1-7
IPC 8 full level
G06T 7/40 (2006.01)
CPC (source: EP)
G06T 7/41 (2016.12)
Citation (search report)
See references of WO 03081533A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 03081533 A2 20031002; WO 03081533 A3 20040826; AU 2003212574 A1 20031008; AU 2003212574 A8 20031008; CN 1656516 A 20050817; EP 1490834 A2 20041229; JP 2005521169 A 20050714; TW 200404268 A 20040316
DOCDB simple family (application)
IB 0301100 W 20030312; AU 2003212574 A 20030312; CN 03812035 A 20030312; EP 03708399 A 20030312; JP 2003579177 A 20030312; TW 92106794 A 20030326