公开(公告)号：US10250789B2

公开(公告)日：2019-04-02

申请号：US15426675

申请日：2017-02-07

Applicant: Google Inc.

Inventor： Johnny C Lee

IPC: G03B9/08 ,  G06F1/16 ,  G06F3/01 ,  G06F3/03 ,  G06K9/22 ,  G06K9/46 ,  G06T7/80 ,  H01S5/00 ,  H01S5/42 ,  H04N5/33 ,  G02B27/42 ,  H04N13/00 ,  H04N5/225 ,  H04N5/232 ,  H04N5/235 ,  H04N5/353 ,  H04N13/239 ,  H04N13/271

Abstract: An electronic device (100) includes a modulated light projector (119) and an electronic rolling shutter (ERS) imaging camera (1302) having a sensor array (1306) with a set of pixel rows. The electronic device includes a controller (1304) to control the modulated light projector (119) to project a modulated light flash (1608, 1810, 2010) during capture of a first image frame (1606, 1806, 2006) by the sensor array. The controller is to initiate the modulated light flash while each pixel row of the set is exposed for gathering light and to terminate the modulated light flash before a pixel row of the set is exposed for capture of a next image frame by the sensor array. The electronic device further includes a processor (802) to determine modulated light image data (1320) based on the first image frame. The controller also may control the modulated light projector to refrain from projecting the modulated light flash during capture of a second image frame (1602, 1612, 1802, 1816, 2002, 2018), adjacent to the first image frame.