公开(公告)号：US12143719B2

公开(公告)日：2024-11-12

申请号：US18470702

申请日：2023-09-20

Applicant: STMicroelectronics France ,  STMicroelectronics, Inc. ,  STMicroelectronics (Research & Development) Limited

Inventor： Darin K. Winterton ,  Donald Baxter ,  Andrew Hodgson ,  Gordon Lunn ,  Olivier Pothier ,  Kalyan-Kumar Vadlamudi-Reddy

IPC: H04N23/67 ,  H04N23/61

Abstract: A method includes dividing a field of view into a plurality of zones and sampling the field of view to generate a photon count for each zone of the plurality of zones, identifying a focal sector of the field of view and analyzing each zone to select a final focal object from a first prospective focal object and a second prospective focal object.

公开(公告)号：US20240201383A1

公开(公告)日：2024-06-20

申请号：US18538800

申请日：2023-12-13

Applicant: STMICROELECTRONICS FRANCE ,  STMicroelectronics (Research & Development) Limited

Inventor： Brent Edward Hearn ,  Thierry Lebihen ,  Olivier Pothier

IPC: G01S17/894 ,  G01B11/22 ,  G01S7/481 ,  G01S7/4865

CPC classification number: G01S17/894 ,  G01B11/22 ,  G01S7/4816 ,  G01S7/4865

Abstract: A method includes estimating first distance values associated with a plurality of first pixels, based on light pulses of a first light pulse train having a first period, estimating second distance values associated with a plurality of second pixels, the second distance values being estimated for each second pixel based on a second light pulse train having a second period different from the first period, for each of the first pixels being adjacent to one of the second pixels, validating or invalidating the first distance values, based on a comparison between the estimations of the first distance value and at least one of the second distance values of at least one second adjacent pixel, and storing an indication of the first pixels having been validated and/or invalidated.

公开(公告)号：US11915438B2

公开(公告)日：2024-02-27

申请号：US17478643

申请日：2021-09-17

Applicant: STMicroelectronics France

Inventor： Manu Alibay ,  Olivier Pothier ,  Victor Macela ,  Alain Bellon ,  Arnaud Bourge

IPC: G06T7/521 ,  G01S17/08 ,  G06T7/55 ,  G06T7/593 ,  H04N13/207 ,  H04N13/254 ,  H04N13/271 ,  H04N13/00 ,  H04N13/204

CPC classification number: G06T7/521 ,  G01S17/08 ,  G06T7/55 ,  G06T7/593 ,  H04N13/207 ,  H04N13/254 ,  H04N13/271 ,  G06T2207/10012 ,  G06T2207/10021 ,  G06T2207/10028 ,  G06T2207/20212 ,  H04N2013/0081 ,  H04N13/204

Abstract: The method of determination of a depth map of a scene comprises generation of a distance map of the scene obtained by time of flight measurements, acquisition of two images of the scene from two different viewpoints, and stereoscopic processing of the two images taking into account the distance map. The generation of the distance map includes generation of distance histograms acquisition zone by acquisition zone of the scene, and the stereoscopic processing includes, for each region of the depth map corresponding to an acquisition zone, elementary processing taking into account the corresponding histogram.