公开(公告)号：US12146960B2

公开(公告)日：2024-11-19

申请号：US16078920

申请日：2016-12-21

Applicant: BRIGHTWAY VISION LTD.

Inventor： Ezri Sonn ,  Amit Oved ,  Eyal Levi ,  Yoav Grauer ,  Ofer David

IPC: G01S17/89 ,  G01S7/4865 ,  G01S17/18 ,  G01S17/931

Abstract: A method for depth mapping of objects in a scene by a system of a moving/movable platform is disclosed. According to some embodiments, the method includes actively illuminating the scene with pulsed light that is generated by at least one pulsed light illuminator and receiving, responsive to illuminating the scene, reflections on at least one image sensor that comprises a plurality of pixel elements. The method may further include gating at least one of the plurality of pixel elements of the at least one image sensor for converting the reflections into pixel values for generating reflection-based images that have at least two depth-of-field ranges and an overlapping DOF region. In addition, the method may include determining, based on at least one first pixel value of a first DOF in the overlapping DOF region, and based on at least one second pixel value of a second DOF in the overlapping DOF region, depth information of one or more objects located in the overlapping DOF region of the scene.

公开(公告)号：US10564267B2

公开(公告)日：2020-02-18

申请号：US15514910

申请日：2015-10-15

Applicant: Brightway Vision Ltd.

Inventor： Yoav Grauer ,  Ofer David ,  Eyal Levi ,  Ezri Sonn ,  Haim Garten

IPC: G01S7/00 ,  G01S7/486 ,  G01S17/10 ,  G01S17/89 ,  G01S17/93 ,  G01S7/4863 ,  G01S7/483 ,  B60Q1/14 ,  G01S17/02

Abstract: Active-gated imaging system and method for imaging environment with at least one high-intensity source. A light source emits light pulses toward the environment, and an image sensor with a pixelated sensor array receives reflected pulses from a selected depth of field and generates a main image. The image sensor exposure mechanism includes a pixelated transfer gate synchronized with the emitted pulses. An image processor identifies oversaturated image portions of the main image resulting from a respective high-intensity source, and interprets the oversaturated image portions using supplementary image information acquired by image sensor. The supplementary information may be obtained from: a low-illumination secondary image having substantially fewer gating cycles than the main image; by accumulating reflected pulses from the high-intensity source after the reflected pulses undergo internal reflections between optical elements of the camera; or a low-illumination secondary image acquired by residual photon accumulation during a non-exposure state of image sensor.

公开(公告)号：US20170234976A1

公开(公告)日：2017-08-17

申请号：US15514910

申请日：2015-10-15

Applicant: Brightway Vision Ltd.

Inventor： Yoav Grauer ,  Ofer David ,  Eyal Levi ,  Ezri Sonn ,  Haim Garten

IPC: G01S7/486 ,  G01S17/93 ,  G01S17/10 ,  G01S17/89

CPC classification number: G01S7/4868 ,  B60Q1/14 ,  G01S7/483 ,  G01S7/4863 ,  G01S17/023 ,  G01S17/107 ,  G01S17/89 ,  G01S17/936

Abstract: Active-gated imaging system and method for imaging environment with at least one high-intensity source. A light source emits light pulses toward the environment, and an image sensor with a pixelated sensor array receives reflected pulses from a selected depth of field and generates a main image. The image sensor exposure mechanism includes a pixelated transfer gate synchronized with the emitted pulses. An image processor identifies oversaturated image portions of the main image resulting from a respective high-intensity source, and interprets the oversaturated image portions using supplementary image information acquired by image sensor. The supplementary information may be obtained from: a low-illumination secondary image having substantially fewer gating cycles than the main image; by accumulating reflected pulses from the high-intensity source after the reflected pulses undergo internal reflections between optical elements of the camera; or a low-illumination secondary image acquired by residual photon accumulation during a non-exposure state of image sensor.