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1. WO2011028240 - SYSTEM AND METHOD FOR GENERATING AN INTRINSIC IMAGE USING TONE MAPPING AND LOG CHROMATICITY

Publication Number WO/2011/028240
Publication Date 10.03.2011
International Application No. PCT/US2010/002294
International Filing Date 20.08.2010
IPC
G06K 9/40 2006.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
9Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
36Image preprocessing, i.e. processing the image information without deciding about the identity of the image
40Noise filtering
CPC
G06K 9/4652
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
9Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
36Image preprocessing, i.e. processing the image information without deciding about the identity of the image
46Extraction of features or characteristics of the image
4652related to colour
G06K 9/4661
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
9Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
36Image preprocessing, i.e. processing the image information without deciding about the identity of the image
46Extraction of features or characteristics of the image
4661related to illumination properties, e.g. according to a reflectance or lighting model
G06T 2207/10024
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
2207Indexing scheme for image analysis or image enhancement
10Image acquisition modality
10024Color image
G06T 7/90
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
7Image analysis
90Determination of colour characteristics
Applicants
  • TANDENT VISION SCIENCE, INC. [US]/[US] (AllExceptUS)
  • SMITH, Casey, Arthur [US]/[US] (UsOnly)
Inventors
  • SMITH, Casey, Arthur
Agents
  • DAVIDSON, Cliford M.
Priority Data
12/584,21802.09.2009US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SYSTEM AND METHOD FOR GENERATING AN INTRINSIC IMAGE USING TONE MAPPING AND LOG CHROMATICITY
(FR) SYSTÈME ET PROCÉDÉ POUR GÉNÉRER UNE IMAGE INTRINSÈQUE À L'AIDE D'UN MAPPAGE DE TEINTES ET D'UNE CHROMATICITÉ LOGARITHMIQUE
Abstract
(EN)
In a first exemplary embodiment of the present invention, an automated, computerized method is provided for processing an image. According to a feature of the present invention, the method comprises the steps of providing an image file depicting an image in an array of pixels, in a computer memory, performing a tone mapping method on the image, performing a log chromaticity method on the image and calculating a color value for each pixel as a function of information relevant to the tone mapping method and the log chromaticity method.
(FR)
Dans un premier mode de réalisation à titre d'exemple de la présente invention, l'invention porte sur un procédé informatisé, automatisé pour traiter une image. Conformément à une caractéristique de la présente invention, le procédé comprend les étapes de fourniture d'un fichier d'image décrivant une image dans un réseau de pixels, dans une mémoire d'ordinateur, de réalisation d'un procédé de mappage de teintes sur l'image, de réalisation d'un procédé de chromaticité logarithmique sur l'image et de calcul d'une valeur de couleur pour chaque pixel en fonction d'informations pertinentes pour le procédé de mappage de teintes et le procédé de chromaticité logarithmique.
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