公开(公告)号：US20220011429A1

公开(公告)日：2022-01-13

申请号：US17485518

申请日：2021-09-27

Applicant: PixArt Imaging Inc.

Inventor： Guo-Zhen Wang

IPC: G01S17/48 ,  G01S7/4912

Abstract: An optical distance measurement method includes: acquiring a plurality of sensed values based on detecting light; performing a filtering operation to select a plurality of selected sensed values from the plurality of sensed values; determining a location of a centroid according to the plurality of selected sensed values; and calculating a plurality of depth values with respect to a plurality of detecting points according to the location of the centroid and a plurality of depth information transformation functions respectively corresponding to the detecting points.

公开(公告)号：US20210247327A1

公开(公告)日：2021-08-12

申请号：US17242296

申请日：2021-04-27

Applicant: PixArt Imaging Inc.

Inventor： Tsung-Fa Wang ,  Hung-Ching Lai ,  Guo-Zhen Wang

IPC: G01N21/94 ,  G01N21/88

Abstract: An electronic device, comprising: a first light source, configured to emit first light; a second light source, configured to emit second light; a first optical sensor, configured to sense first optical data generated based on reflected light of the first light; a light guiding device, configured to receive the second light; and a second optical sensor, configured to sense second optical data generated based on the second light emitted by the light guiding device. The first optical sensor and the second optical sensor can be integrated to a single optical sensor.

公开(公告)号：US10917581B2

公开(公告)日：2021-02-09

申请号：US16012982

申请日：2018-06-20

Applicant: PixArt Imaging Inc.

Inventor： Guo-Zhen Wang ,  Shiaw-Yu Jou

IPC: H04N5/235 ,  G01C3/08 ,  H04N5/225 ,  H04N5/232 ,  G01S7/4912 ,  G01S7/486

Abstract: There is provided an optical distance measurement system including an image sensor and a processing unit. The processing unit is configured to generate an image to be calculated according to at least one image captured by the image sensor, wherein different image regions of the image to be calculated correspond to different exposure times thereby improving the accuracy of the distance calculation.

公开(公告)号：US10726573B2

公开(公告)日：2020-07-28

申请号：US15870109

申请日：2018-01-12

Applicant: PIXART IMAGING INC.

Inventor： Guo-Zhen Wang

IPC: G06T7/70 ,  G06K9/66 ,  G06K9/62 ,  G06T5/20 ,  G06T7/246 ,  G06K9/46

Abstract: The present disclosure discloses an object detection method based on machine learning. The object detection method senses a motion of an object by a motion sensor to generate a testing image, captures the testing image by an image sensor to transmit a sensed image to an object detection device, and detects a position of the object in the sensed image by the object detection device. Therefore, the present disclosure increases the accuracy of image recognition under various conditions.

公开(公告)号：US10713487B2

公开(公告)日：2020-07-14

申请号：US16022719

申请日：2018-06-29

Applicant: PixArt Imaging Inc.

Inventor： Guo-Zhen Wang

IPC: G06K9/00

Abstract: Disclosed is an object determining system comprising an optical sensor, a kind determining circuit and an element analyzing circuit. The optical sensor comprises a kind determining region and an element analyzing region, wherein the optical sensor captures at least one object image of an object via the kind determining region, and acquires element analyzing optical data via the element analyzing region. The kind determining circuit is configured to determine an object kind of the object according to the object image. The element analyzing circuit is configured to analyze element of the object according to the element analyzing optical data and the object kind. An object determining system applying tow stage object sensing steps to determine an object kind is also disclosed.

公开(公告)号：US10574878B2

公开(公告)日：2020-02-25

申请号：US15821891

申请日：2017-11-24

Applicant: PIXART IMAGING INC.

Inventor： Han-Chang Lin ,  Guo-Zhen Wang ,  Nien-Tse Chen

IPC: H04N5/232 ,  G02B27/00 ,  G06K9/00 ,  G06F3/01

Abstract: An electronic system including a display device, an image sensor, a face detection engine, an eye detection engine and an eye protection engine is provided. The image sensor captures an image. The face detection engine recognizes a user face in the image. The eye detection engine recognizes user eyes in the image. The eye protection engine turns off the display device when the user eyes are recognized in the image but the user face is not recognized in the image.

公开(公告)号：US20200049825A1

公开(公告)日：2020-02-13

申请号：US16654022

申请日：2019-10-16

Applicant: PixArt Imaging Inc.

Inventor： Guo-Zhen Wang

IPC: G01S17/48 ,  G01S7/491

Abstract: An image noise compensating system, comprising: a distance determining device, configured to determine whether a distance between an object and an electronic device comprising the image noise compensating system is larger than a distance threshold or not; an image sensor, comprising at least one image sensing unit, wherein the image sensor combines a plurality of image sensing units to sense images when the distance is smaller than the distance threshold and senses images without combining the image sensing units when the distance is larger than the distance threshold; and an noise compensating circuit, configured to compensate image noises according to the images sensed by the image sensor.

公开(公告)号：US20200005039A1

公开(公告)日：2020-01-02

申请号：US16022719

申请日：2018-06-29

Applicant: PixArt Imaging Inc.

Inventor： Guo-Zhen Wang

IPC: G06K9/00

Abstract: Disclosed is an object determining system comprising an optical sensor, a kind determining circuit and an element analyzing circuit. The optical sensor comprises a kind determining region and an element analyzing region, wherein the optical sensor captures at least one object image of an object via the kind determining region, and acquires element analyzing optical data via the element analyzing region. The kind determining circuit is configured to determine an object kind of the object according to the object image. The element analyzing circuit is configured to analyze element of the object according to the element analyzing optical data and the object kind. An object determining system applying tow stage object sensing steps to determine an object kind is also disclosed.

公开(公告)号：US20190232736A1

公开(公告)日：2019-08-01

申请号：US15885843

申请日：2018-02-01

Applicant: PixArt Imaging Inc.

Inventor： Guo-Zhen Wang ,  Chang-Sheng Chiu

IPC: B60C25/00 ,  G01B11/22 ,  G01B11/04 ,  G01S17/02 ,  B60Q9/00

CPC classification number: B60C25/007 ,  B60K28/10 ,  B60Q9/00 ,  G01B11/046 ,  G01B11/22 ,  G01S17/026

Abstract: An object surface managing method comprising: (a) emitting detecting light to the groove via alight source; (b) receiving first reflected detecting light from the surface and second reflected detecting light from a bottom of the groove via a light sensor; and (c) calculating a groove depth of the groove according to the first reflected detecting light and the second reflected detecting light.

公开(公告)号：US10368014B2

公开(公告)日：2019-07-30

申请号：US15252671

申请日：2016-08-31

Applicant: PixArt Imaging Inc.

Inventor： Guo-Zhen Wang ,  Yi-Lei Chen

IPC: H04N5/33 ,  G06T7/00 ,  H04N5/225 ,  G06T7/571 ,  H04N5/357

Abstract: A ranging system including a first aperture stop, a second aperture stop, an image sensor and a processing unit is provided. The first aperture stop includes a sheet of IR-cut filter material. The second aperture stop includes a sheet of opaque material. The image sensor receives light passing through the first and second aperture stops to output an image frame. The processing unit respectively calculates a convolution between a first color subframe of the image frame and a plurality of first blur kernels to generate a plurality of blurred first frames, respectively calculates a convolution between a second color subframe of the image frame and a plurality of second blur kernels to generate a plurality of blurred second frames, and performs a best matching between the blurred first frames and the blurred second frames.