公开(公告)号：US10935661B2

公开(公告)日：2021-03-02

申请号：US16281330

申请日：2019-02-21

Applicant: PIXART IMAGING INC.

Inventor： Guo-Zhen Wang ,  Ming-Tsan Kao

IPC: G01C3/08 ,  G01S17/89 ,  G01S17/46

Abstract: Disclosed are a distance measuring method and a distance measuring apparatus. During the distance measuring, an image is obtained. If the location of a center of gravity of the image is within a first segment, the calculating unit calculates a distance between the object and the distance measuring apparatus corresponding to the projection point, according to a first mapping relationship and the location of a center of gravity of the image. If the location of a center of gravity of the image is within a second segment, the calculating unit calculates a distance between the object and the distance measuring apparatus corresponding to the projection point according to a second mapping relationship and the location of a center of gravity of the image.

公开(公告)号：US10775933B2

公开(公告)日：2020-09-15

申请号：US16030872

申请日：2018-07-10

Applicant: PixArt Imaging Inc.

Inventor： Guo-Zhen Wang ,  Shih-Feng Chen ,  Han-Chang Lin

IPC: G06F3/042 ,  G06F3/03 ,  G06F3/041

Abstract: A touch control detecting method applied to an electronic apparatus comprising an image sensor. The touch control detecting method comprises: (a) capturing a plurality of sensing images via the image sensor; and (b) determining if an object performs a predetermined touch control operation to the electronic apparatus, according to a brightness variation tendency of the sensing images. The predetermined touch control operation is a long press operation.

公开(公告)号：US10148864B2

公开(公告)日：2018-12-04

申请号：US15374499

申请日：2016-12-09

Applicant: PIXART IMAGING INC.

Inventor： Guo-Zhen Wang ,  Ren-Hau Gu ,  En-Feng Hsu

IPC: H04N5/232 ,  G06K9/00 ,  G02B7/36 ,  G06K7/14 ,  G06K7/10 ,  G02B7/28 ,  H04N5/369 ,  H04N13/232 ,  H04N13/229 ,  G02B3/00 ,  H04N13/00 ,  H04N13/257 ,  H04N13/218

Abstract: An imaging device including a pixel matrix and a processor is provided. The pixel matrix includes a plurality of phase detection pixels and a plurality of regular pixels. The processor performs autofocusing according to pixel data of the phase detection pixels, and determines an operating resolution of the regular pixels according to autofocused pixel data of the phase detection pixels, wherein the phase detection pixels are always-on pixels and the regular pixels are selectively turned on after the autofocusing is accomplished.

公开(公告)号：US10136787B2

公开(公告)日：2018-11-27

申请号：US14989807

申请日：2016-01-07

Applicant: PixArt Imaging Inc.

Inventor： Guo-Zhen Wang

IPC: H04N5/217 ,  A47L11/24

Abstract: An image processing method, applied to an image processing apparatus comprising a light source and an image sensor. The image sensing method comprises: acquiring a first image via the image sensor if the light source operates in a first mode; acquiring a second image via the image sensor if the light source operates in a second mode; acquiring a third image via the image sensor if the light source operates in the first mode; generating a combined image based on the first image and the third image; and acquiring a target image after background noise removing based on the second image and the combined image.

公开(公告)号：US10104302B2

公开(公告)日：2018-10-16

申请号：US15161277

申请日：2016-05-22

Applicant: PixArt Imaging Inc.

Inventor： Guo-Zhen Wang

IPC: H04N5/235 ,  H04N5/369 ,  G06T7/73

Abstract: An image determining method, applied to an image sensing apparatus with a lens and an image sensor comprising a first pixel and a second pixel. First/second parts of the first/second pixels are respectively covered. The image determining method comprises: applying the first/second pixel to respectively generate a first/second object image, wherein the first/second object images are combined to generate a first combined object image; computing a first brightness information variation tendency of the first object image, a second brightness information variation tendency of the second object image and brightness information variation tendency of the first combined object image; and determining if the first combined object image is a front image or a rear image based on the first brightness information variation tendency, the second brightness information variation tendency and the brightness information variation tendency of the first combined object image.

公开(公告)号：US10007845B2

公开(公告)日：2018-06-26

申请号：US15199965

申请日：2016-06-30

Applicant: PixArt Imaging Inc.

Inventor： Guo-Zhen Wang

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

CPC classification number: G06K9/0061 ,  G02B27/0093 ,  G02B27/017 ,  G02B2027/0138 ,  G02B2027/014 ,  G02B2027/0178 ,  G06F3/005 ,  G06F3/013 ,  G06F3/017 ,  G06K9/00597 ,  H04N5/23219 ,  H04N5/23222

Abstract: An eye state detecting method, applied to an electronic apparatus with an image sensor, comprising: (a) defining a detecting range according to a possible location of a user's eye, wherein the detecting range is smaller than a maximum detecting range that the electronic apparatus can apply; (b) capturing a detecting image via the detecting range; and (c) determining whether the user's eye is in an opening state or in a closing state according a brightness of to the detecting image. The present invention also discloses a method applying a smaller determining range to determine if the user's eye is open or close.

公开(公告)号：US20180137643A1

公开(公告)日：2018-05-17

申请号：US15870109

申请日：2018-01-12

Applicant: PIXART IMAGING INC.

Inventor： Guo-Zhen Wang

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

CPC classification number: G06T7/70 ,  G06K9/46 ,  G06K9/6202 ,  G06K9/6267 ,  G06K9/6273 ,  G06K9/66 ,  G06T5/20 ,  G06T7/248 ,  G06T2207/20081 ,  G06T2207/20084

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：US20170118389A1

公开(公告)日：2017-04-27

申请号：US15161277

申请日：2016-05-22

Applicant: PixArt Imaging Inc.

Inventor： Guo-Zhen Wang

IPC: H04N5/235 ,  G06K9/00 ,  G06T7/00 ,  H04N5/369

CPC classification number: H04N5/2351 ,  G01C3/32 ,  G06T7/73 ,  G06T2207/10012 ,  H04N5/23212 ,  H04N5/3696

Abstract: An image determining method, applied to an image sensing apparatus with a lens and an image sensor comprising a first pixel and a second pixel. First/second parts of the first/second pixels are respectively covered. The image determining method comprises: applying the first/second pixel to respectively generate a first/second object image, wherein the first/second object images are combined to generate a first combined object image; computing a first brightness information variation tendency of the first object image, a second brightness information variation tendency of the second object image and brightness information variation tendency of the first combined object image; and determining if the first combined object image is a front image or a rear image based on the first brightness information variation tendency, the second brightness information variation tendency and the brightness information variation tendency of the first combined object image.

公开(公告)号：US12259732B2

公开(公告)日：2025-03-25

申请号：US18373999

申请日：2023-09-28

Applicant: PixArt Imaging Inc.

Inventor： Guo-Zhen Wang

IPC: G05D1/246 ,  A47L9/00 ,  A47L9/28 ,  A47L9/30 ,  G05D1/00 ,  G06T7/62 ,  G06T7/73 ,  G06V10/141 ,  G06V20/10 ,  G06V20/58

Abstract: There is provided a moving robot including a light projector, an image sensor and a processing unit. The light projector projects a vertical light segment and a horizontal light segment toward a moving direction. The image sensor captures, toward the moving direction, an image frame containing a first light segment image associated with the vertical light segment and a second light segment image associated with the horizontal light segment. The processing unit recognizes a plush carpet in the moving direction when a vibration intensity of the second light segment image is higher than a predetermined threshold, and an obstacle height calculated according to the first light segment image is larger than a height threshold.

公开(公告)号：US12152925B2

公开(公告)日：2024-11-26

申请号：US18508265

申请日：2023-11-14

Applicant: PixArt Imaging Inc.

Inventor： Feng-Chi Liu ,  Chi-Chieh Liao ,  Guo-Zhen Wang ,  Hung-Ching Lai

IPC: G01F23/292 ,  G01F23/80

Abstract: An optical detection device includes a first linear light source, a second linear light source, an optical sensor array and a processor. The first linear light source is adapted to project a first long strip illumination beam onto the target container. The second linear light source is adapted to project a second long strip illumination beam onto the target container, and the second long strip illumination beam is crossed with the first long strip illumination beam. The optical sensor array is adapted to receive a first long strip detection beam and a second long strip detection beam reflected from the target container. The processor is electrically connected to the optical sensor array. The processor is adapted to analyze intensity distribution of the first long strip detection beam and the second long strip detection beam to acquire a relative distance between the optical sensor array and the target container.