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1. WO2020238729 - DEPTH CAMERAS, ELECTRONIC DEVICES, AND METHODS FOR IMAGE ACQUISITION

Publication Number WO/2020/238729
Publication Date 03.12.2020
International Application No. PCT/CN2020/091431
International Filing Date 20.05.2020
IPC
H04N 5/225 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
5Details of television systems
222Studio circuitry; Studio devices; Studio equipment
225Television cameras
H04N 5/232 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
5Details of television systems
222Studio circuitry; Studio devices; Studio equipment
225Television cameras
232Devices for controlling television cameras, e.g. remote control
H04N 5/217 2011.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
5Details of television systems
14Picture signal circuitry for video frequency region
21Circuitry for suppressing or minimising disturbance, e.g. moire or halo
217in picture signal generation
H04N 13/271 2018.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
13Stereoscopic video systems; Multi-view video systems; Details thereof
20Image signal generators
271wherein the generated image signals comprise depth maps or disparity maps
CPC
G01B 11/2504
GPHYSICS
01MEASURING; TESTING
BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
11Measuring arrangements characterised by the use of optical means
24for measuring contours or curvatures
25by projecting a pattern, e.g. ; one or more lines,; moiré fringes on the object
2504Calibration devices
G01B 11/2513
GPHYSICS
01MEASURING; TESTING
BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
11Measuring arrangements characterised by the use of optical means
24for measuring contours or curvatures
25by projecting a pattern, e.g. ; one or more lines,; moiré fringes on the object
2513with several lines being projected in more than one direction, e.g. grids, patterns
G03B 15/03
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
15Special procedures for taking photographs; Apparatus therefor
02Illuminating scene
03Combinations of cameras with lighting apparatus; Flash units
G03B 17/54
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
17Details of cameras or camera bodies; Accessories therefor
48adapted for combination with other photographic or optical apparatus
54with projector
G06T 1/0007
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
1General purpose image data processing
0007Image acquisition
G06T 2207/10028
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
2207Indexing scheme for image analysis or image enhancement
10Image acquisition modality
10028Range image; Depth image; 3D point clouds
Applicants
  • GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD. [CN]/[CN]
Inventors
  • XU, Naijiang
Agents
  • TSINGYIHUA INTELLECTUAL PROPERTY LLC
Priority Data
201910437664.724.05.2019CN
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) DEPTH CAMERAS, ELECTRONIC DEVICES, AND METHODS FOR IMAGE ACQUISITION
(FR) CAMÉRAS DE PROFONDEUR, DISPOSITIFS ÉLECTRONIQUES ET PROCÉDÉS D'ACQUISITION D'IMAGE
Abstract
(EN)
The disclosure provides a depth camera, an electronic device, and a method for image acquisition. The depth camera includes a laser projector, an image collector, a first storage area, a second storage area, and a logic subtraction circuit. The image collector includes an image sensor. The image sensor is configured to execute a plurality of exposure operations. The image controller is configured to acquire a plurality of collected images. The plurality of collected images include a first image acquired when the laser projector is not projecting the laser light and a second image acquired when the laser projector is projecting the laser light. The logic subtraction circuit is configured to process the first image and the second image to acquire a third image, the third image for calculating a depth image.
(FR)
L'invention concerne une caméra de profondeur, un dispositif électronique et un procédé d'acquisition d'image. La caméra de profondeur comprend un projecteur laser, un collecteur d'images, une première zone de stockage, une seconde zone de stockage et un circuit de soustraction logique. Le collecteur d'images comprend un capteur d'image. Le capteur d'image est configuré pour exécuter une pluralité d'opérations d'exposition. Le collecteur d'images est configuré pour acquérir une pluralité d'images collectées. La pluralité d'images collectées comprend une première image acquise lorsque le projecteur laser ne projette pas la lumière laser et une deuxième image acquise lorsque le projecteur laser projette la lumière laser. Le circuit de soustraction logique est configuré pour traiter la première image et la deuxième image pour acquérir une troisième image, la troisième image servant à calculer une image de profondeur.
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