EP 2926162 A1 20151007 - METHOD FOR PRODUCING IMAGES WITH DEPTH INFORMATION AND IMAGE SENSOR
Title (en)
METHOD FOR PRODUCING IMAGES WITH DEPTH INFORMATION AND IMAGE SENSOR
Title (de)
VERFAHREN ZUR HERSTELLUNG VON BILDERN MIT TIEFENINFORMATIONEN UND BILDSENSOR
Title (fr)
PROCEDE DE PRODUCTION D'IMAGES AVEC INFORMATION DE PROFONDEUR ET CAPTEUR D'IMAGE
Publication
Application
Priority
- FR 1261270 A 20121127
- EP 2013073844 W 20131114
Abstract (en)
[origin: CA2892659A1] The invention relates to the production of images associating, with each point of the image, a depth, i.e a distance between the observed point and the camera that produces the image. A light source emits N trains of light pulses. For each train of rank i = 1 to N, charge is integrated in a short time window of length Tint that starts with a time shift ti relative to the pulse, this time shift representing a journey time for the light pulse between the light source and the sensor after reflection from a point placed a distance di from the sensor. The time shift ti is the same for all the light pulses of the ith pulse train but the time shifts ti for the N trains are different from one another in order to correspond to different distances relative to the sensor. The charge photogenerated by the pulses of a given train is accumulated; then the accumulated charge is read to produce an image of rank i representing the pixels located at the distance di. Observation of a scene comprises producing N different images by virtue of which a distance may be associated with each pixel.
IPC 8 full level
G01S 7/4863 (2020.01); G01S 7/4865 (2020.01); G01S 7/487 (2006.01); G01S 17/18 (2020.01); G01S 17/894 (2020.01); G06T 7/00 (2006.01)
CPC (source: CN EP US)
G01S 7/4863 (2013.01 - CN EP US); G01S 7/4865 (2013.01 - CN EP US); G01S 7/487 (2013.01 - CN EP US); G01S 17/18 (2020.01 - CN EP US); G01S 17/89 (2013.01 - CN); G01S 17/894 (2020.01 - EP US); H04N 13/254 (2018.04 - EP US); H04N 13/271 (2018.04 - EP US); H04N 13/296 (2018.04 - EP US); H04N 2013/0081 (2013.01 - US)
Citation (search report)
See references of WO 2014082864A1
Citation (examination)
- PETER CENTEN ET AL: "R22: A Multi-Functional Imager for TOF and High Performance Video Applications Using a Global Shuttered 5 m Cmos Pixel", 9 June 2011 (2011-06-09), XP055377092, Retrieved from the Internet <URL:http://www.imagesensors.org/Past Workshops/2011 Workshop/2011 Papers/R22_Centen_Multifunctional.pdf> [retrieved on 20170530]
- JENS BUSCK ET AL: "Gated viewing and high-accuracy three-dimensional laser radar", APPLIED OPTICS, vol. 43, no. 24, 20 August 2004 (2004-08-20), WASHINGTON, DC; US, pages 4705, XP055377094, ISSN: 0003-6935, DOI: 10.1364/AO.43.004705
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
FR 2998666 A1 20140530; FR 2998666 B1 20220107; CA 2892659 A1 20140605; CN 104884972 A 20150902; EP 2926162 A1 20151007; JP 2016506492 A 20160303; JP 6320406 B2 20180509; US 2015319422 A1 20151105; US 9699442 B2 20170704; WO 2014082864 A1 20140605
DOCDB simple family (application)
FR 1261270 A 20121127; CA 2892659 A 20131114; CN 201380069412 A 20131114; EP 13789585 A 20131114; EP 2013073844 W 20131114; JP 2015543396 A 20131114; US 201314647492 A 20131114