公开(公告)号：US10075702B2

公开(公告)日：2018-09-11

申请号：US15204185

申请日：2016-07-07

Applicant: STMICROELECTRONICS SA

Inventor： Olivier Pothier ,  Arnaud Bourge

IPC: G06T3/40 ,  H04N13/271 ,  H04N13/02

CPC classification number: H04N13/271 ,  G06T3/40 ,  H04N13/139 ,  H04N2013/0081

Abstract: An electronic device includes a single-photon avalanche diode (SPAD) array and readout circuitry coupled thereto. The readout circuitry generates a depth map having a first resolution, and a signal count map having a second resolution greater than the first resolution. The depth map corresponds to distance observations to an object. The signal count map corresponds to intensity observation sets of the object, with each intensity observation set including intensity observations corresponding to a respective distance observation in the depth map. An upscaling processor is coupled to the readout circuitry to calculate upscaling factors for each intensity observation set so that each distance observation has respective upscaling factors associated therewith. The depth map is then upscaled from the first resolution to the second resolution based on the respective upscaling factors.

公开(公告)号：US20170090581A1

公开(公告)日：2017-03-30

申请号：US14863585

申请日：2015-09-24

Applicant: STMICROELECTRONICS SA

Inventor： Olivier Pothier

IPC: G06F3/01 ,  G06F3/03

CPC classification number: G06F3/017 ,  G06F1/1684 ,  G06F1/1686 ,  G06F1/169 ,  G06F3/0304

Abstract: An electronic device includes a laser source configured to direct laser radiation toward a user's hand. A laser detector is configured to receive reflected laser radiation from the user's hand. A controller is coupled to the laser source and laser detector and configured to determine a plurality of distance values to the user's hand based upon a time-of-flight of the laser radiation, calculate a mean absolute deviation (MAD) value based upon the plurality of distance values, and identify whether the user's hand is moving in a first or second gesture based upon the MAD value.