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1. WO2020063124 - METHOD AND APPARATUS FOR ACQUIRING DEPTH IMAGE, AND ELECTRONIC DEVICE

Publication Number WO/2020/063124
Publication Date 02.04.2020
International Application No. PCT/CN2019/099647
International Filing Date 07.08.2019
IPC
G06T 5/00 2006.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
5Image enhancement or restoration
CPC
G01S 17/36
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
17Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
02Systems using the reflection of electromagnetic waves other than radio waves
06Systems determining position data of a target
08for measuring distance only
32using transmission of continuous unmodulated waves, amplitude-, frequency-, or phase-modulated waves
36with phase comparison between the received signal and the contemporaneously transmitted signal
G01S 17/42
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
17Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
02Systems using the reflection of electromagnetic waves other than radio waves
06Systems determining position data of a target
42Simultaneous measurement of distance and other co-ordinates
G01S 17/89
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
17Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
88Lidar systems specially adapted for specific applications
89for mapping or imaging
G01S 7/4813
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
7Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
48of systems according to group G01S17/00
481Constructional features, e.g. arrangements of optical elements
4811common to transmitter and receiver
4813Housing arrangements
G01S 7/493
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
7Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
48of systems according to group G01S17/00
491Details of non-pulse systems
493Extracting wanted echo signals
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
  • CHEN, Yan
Agents
  • SCIHEAD IP LAW FIRM
Priority Data
201811124929.X26.09.2018CN
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD AND APPARATUS FOR ACQUIRING DEPTH IMAGE, AND ELECTRONIC DEVICE
(FR) PROCÉDÉ ET APPAREIL D'ACQUISITION D'IMAGE DE PROFONDEUR, ET DISPOSITIF ÉLECTRONIQUE
Abstract
(EN)
A method for acquiring a depth image, an apparatus for acquiring a depth image, and an electronic device are provided. The method includes the following. Light is emitted to a target object. Light reflected by the target object is received and sampling is performed a number of times, to obtain multiple phase maps. The multiple phase maps are filtered to obtain multiple filtered phase maps. The depth image is formed according to the multiple filtered phase maps.
(FR)
L'invention concerne un procédé d'acquisition d'une image de profondeur, un appareil d'acquisition d'une image de profondeur, et un dispositif électronique. Le procédé comprend les étapes suivantes. De la lumière est émise vers un objet cible. De la lumière réfléchie par l'objet cible est reçue et un échantillonnage est effectué un certain nombre de fois, pour obtenir de multiples cartes de phase. Les multiples cartes de phase sont filtrées pour obtenir de multiples cartes de phase filtrées. L'image de profondeur est formée selon les multiples cartes de phase filtrées.
Also published as
Latest bibliographic data on file with the International Bureau