公开(公告)号：US20230120133A1

公开(公告)日：2023-04-20

申请号：US18081731

申请日：2022-12-15

Applicant: PixArt Imaging Inc.

Inventor： GUO-ZHEN WANG ,  SHIAW-YU JOU

IPC: H04N23/73 ,  H04N23/56 ,  H04N23/80 ,  H04N23/743 ,  G01C3/08

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：US20220369886A1

公开(公告)日：2022-11-24

申请号：US17882648

申请日：2022-08-08

Applicant: PixArt Imaging Inc.

Inventor： CHI-CHIEH LIAO ,  GUO-ZHEN WANG

IPC: A47L11/24 ,  A47L11/40

Abstract: There is provided a cleaning robot including a light source module and an image sensor. The light source module projects a horizontal line pattern toward a moving direction. The image sensor captures, toward the moving direction, an image of the horizontal line pattern. The light source module is arranged below the image sensor so as to eliminate the interference from second reflection.

公开(公告)号：US20220335623A1

公开(公告)日：2022-10-20

申请号：US17855886

申请日：2022-07-01

Applicant: PIXART IMAGING INC.

Inventor： GUO-ZHEN WANG ,  HAN-CHANG LIN

IPC: G06T7/20 ,  G01J5/00 ,  G06T7/60 ,  G06T7/10 ,  G06T7/30 ,  G06F3/03 ,  G06T7/254 ,  H04N5/33 ,  G06V10/44 ,  G06V10/147 ,  G06V40/10

Abstract: An image recognition system includes a processing module, a sensor module, and a database. The sensor module is electrically connected to the processing module. The database is electrically connected to the processing module. The sensor module configured for capturing at least one image. The at least one image is stored in the database. The processing captures a contour of an object from the at least one image and separates the contour of the object into a plurality of portions. A plurality of arrangements is defined between the portions of the contour of the object. The processing module determines a state of the contour of the object based on the arrangements.

公开(公告)号：US20220060618A1

公开(公告)日：2022-02-24

申请号：US17515739

申请日：2021-11-01

Applicant: PixArt Imaging Inc.

Inventor： HAN-CHANG LIN ,  GUO-ZHEN WANG ,  NIEN-TSE CHEN

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

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：US20210402612A1

公开(公告)日：2021-12-30

申请号：US17470401

申请日：2021-09-09

Applicant: PixArt Imaging Inc.

Inventor： GUO-ZHEN WANG

IPC: B25J9/16 ,  A47L11/40 ,  B25J11/00 ,  A47L9/28

Abstract: There is provided a cleaning robot including a light source module, an image sensor and a processor. The light source module projects a line pattern and a speckle pattern toward a moving direction. The image sensor captures an image of the line pattern and an image of the speckle pattern. The processor calculates one-dimensional depth information according to the image of the line pattern and calculates two-dimensional depth information according to the image of the speckle pattern.

公开(公告)号：US20200128174A1

公开(公告)日：2020-04-23

申请号：US16717174

申请日：2019-12-17

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：US20190156500A1

公开(公告)日：2019-05-23

申请号：US16260658

申请日：2019-01-29

Applicant: PixArt Imaging Inc.

Inventor： GUO-ZHEN WANG ,  CHIA-YI LIU

IPC: G06T7/55 ,  G01C3/00 ,  G01S17/89 ,  G01S17/46

Abstract: There is provided an operating method of a distance measurement system including the steps of: successively capturing image frames with an image sensor; controlling a sampling parameter to converge an average brightness value of an object image in the image frames to be within a predetermined range; calculating a plurality of first object sizes of a converged object image in a converged image frame and calculating a first average value of the first object sizes; calculating a second average value of the first average values corresponding to a plurality of converged image frames; and comparing the second average value with a lookup table to determine an object depth.

公开(公告)号：US20240131716A1

公开(公告)日：2024-04-25

申请号：US18401776

申请日：2024-01-02

Applicant: PixArt Imaging Inc.

Inventor： GUO-ZHEN WANG

IPC: B25J9/16 ,  A47L9/28 ,  A47L11/40 ,  B25J11/00

CPC classification number: B25J9/1697 ,  A47L9/2826 ,  A47L11/4061 ,  B25J9/1666 ,  B25J11/0085 ,  A47L2201/04

Abstract: There is provided a cleaning robot including a light source module, an image sensor and a processor. The light source module projects a line pattern and a speckle pattern toward a moving direction. The image sensor captures an image of the line pattern and an image of the speckle pattern. The processor calculates one-dimensional depth information according to the image of the line pattern and calculates two-dimensional depth information according to the image of the speckle pattern.

公开(公告)号：US20240089581A1

公开(公告)日：2024-03-14

申请号：US18510725

申请日：2023-11-16

Applicant: PixArt Imaging Inc.

Inventor： HAN-CHANG LIN ,  GUO-ZHEN WANG ,  NIEN-TSE CHEN

IPC: H04N23/611 ,  G02B27/00 ,  G06F3/01 ,  G06V40/16 ,  G06V40/18 ,  H04N23/61 ,  H04N23/63

CPC classification number: H04N23/611 ,  G02B27/0093 ,  G06F3/013 ,  G06V40/161 ,  G06V40/18 ,  H04N23/61 ,  H04N23/63

Abstract: An electronic system including 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 a 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：US20240036204A1

公开(公告)日：2024-02-01

申请号：US18378837

申请日：2023-10-11

Applicant: PixArt Imaging Inc.

Inventor： GUO-ZHEN WANG ,  HUI-HSUAN CHEN

IPC: G01S17/66 ,  G01S17/50 ,  G06T7/521 ,  G01S7/481 ,  G01S17/46 ,  G01S7/48 ,  H04N23/51 ,  H04N23/56

CPC classification number: G01S17/66 ,  G01S17/50 ,  G06T7/521 ,  G01S7/4816 ,  G01S17/46 ,  G01S7/4815 ,  G01S7/4808 ,  H04N23/51 ,  H04N23/56 ,  G06T2207/10004 ,  G06T2207/10152 ,  H04N5/33

Abstract: There is provided a mobile robot that performs the obstacle avoidance and visual simultaneous localization and mapping (VSLAM) according to image frames captured by the same optical sensor. The mobile robot includes a pixel array and a processor. An upper part of the pixel array is not coated with any filter and a lower part of the pixel array is coated with an IR filter. The processor performs range estimation using pixel data corresponding to the lower part of the pixel array, and perform the VSLAM using pixel data corresponding to the upper part of the pixel array.