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1. WO2020200620 - MASKING OF OBJECTS CONTAINED IN AN IMAGE

Publication Number WO/2020/200620
Publication Date 08.10.2020
International Application No. PCT/EP2020/055756
International Filing Date 04.03.2020
IPC
G06K 9/00 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
G06K 9/44 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
44Smoothing or thinning of the pattern
G06T 11/40 2006.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
112D image generation
40Filling a planar surface by adding surface attributes, e.g. colour or texture
G06T 5/00 2006.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
5Image enhancement or restoration
CPC
G06K 2209/15
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
2209Indexing scheme relating to methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
15Detection and recognition of car license plates
G06K 9/00228
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
00221Acquiring or recognising human faces, facial parts, facial sketches, facial expressions
00228Detection; Localisation; Normalisation
G06K 9/00791
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
00624Recognising scenes, i.e. recognition of a whole field of perception; recognising scene-specific objects
00791Recognising scenes perceived from the perspective of a land vehicle, e.g. recognising lanes, obstacles or traffic signs on road scenes
G06K 9/44
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
44Smoothing or thinning of the pattern
G06T 11/40
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
112D [Two Dimensional] image generation
40Filling a planar surface by adding surface attributes, e.g. colour or texture
G06T 5/005
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
5Image enhancement or restoration
001Image restoration
005Retouching; Inpainting; Scratch removal
Applicants
  • VOLKSWAGEN AKTIENGESELLSCHAFT [DE]/[DE]
Inventors
  • SCHOMERUS, Volker Patricio
  • FEI, Juncong
  • RASHEED, Umair
Priority Data
10 2019 204 602.901.04.2019DE
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) MASKIERUNG VON IN EINEM BILD ENTHALTENEN OBJEKTEN
(EN) MASKING OF OBJECTS CONTAINED IN AN IMAGE
(FR) MASQUAGE D'OBJETS CONTENUS DANS UNE IMAGE
Abstract
(DE)
Bei dem erfindungsgemäßen Verfahren zur Maskierung von in einem Bild enthaltenen Objekten werden Pixelwerte für die Pixel eines Bildes ermittelt (1). Eine Bildmaske wird generiert (2), die mindestens einen ersten Bereich aufweist, in dem Pixel einer vorgegebenen Objektklasse angeordnet sind, und mindestens einen zweiten Bereich aufweist, in dem Pixel dieser vorgegebenen Objektklasse nicht angeordnet sind. Für die Pixel in dem mindestens einen ersten Bereich wird die Distanz zum jeweils nächstliegenden Pixel in dem mindestens einen zweiten Bereich ermittelt (3). Den Pixeln wird in dem mindestens einen ersten Bereich jeweils ein Fenster zugeordnet (4), das eine von der ermittelten Distanz abhängige Fenstergröße aufweist. Aus den Pixelwerten der Pixel innerhalb des einem Pixel jeweils zugeordneten Fensters wird mindestens ein neuer Pixelwert für den jeweiligen Pixel ermittelt (5). Die ursprünglichen Pixelwerte der Pixel werden in dem mindestens einen ersten Bereich durch die jeweiligen neuen Pixelwerte ersetzt (6).
(EN)
The method according to the invention for masking objects contained in an image involves pixel values being determined for the pixels of an image (1). An image mask is generated (2), which has at least one first region, in which pixels of a predetermined object class are arranged, and at least one second region, in which pixels of this predetermined object class are not arranged. For the pixels in the at least one first region, the distance from the particular closest pixel in the at least one second region is determined (3). The pixels in the at least one first region are each assigned a window (4) that has a window size dependent on the determined distance. From the pixel values of the pixels within the window assigned to a particular pixel, at least one new pixel value is determined for the respective pixel (5). The original pixel values of the pixels in the at least one first region are replaced with the respective new pixel values (6).
(FR)
L'invention concerne un procédé de masquage d'objets contenus dans une image, dans lequel des valeurs de pixel pour les pixels d'une image sont déterminées (1). Un masque d'image présentant au moins une première zone est généré (2), dans laquelle des pixels d'une classe d'objets prédéfinie sont disposés, et présentant au moins une seconde zone dans laquelle des pixels de cette classe d'objets prédéfinie ne sont pas diposés. Pour les pixels disposés dans l'au moins une première zone, la distance par rapport au pixel le plus proche dans l'au moins une seconde zone est déterminée (3). Une fenêtre est respectivement associée aux pixels dans l'au moins une première zone, laquelle fenêtre a une taille dépendant de la distance déterminée. Au moins une nouvelle valeur de pixel est déterminée (5) pour le pixel respectif, à partir des valeurs des pixels présents dans la fenêtre associée à un pixel. Les valeurs d'origine des pixels sont remplacées (6), dans l'au moins une première zone, par les nouvelles valeurs de pixel correspondantes.
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