公开(公告)号：US12204029B2

公开(公告)日：2025-01-21

申请号：US18378837

申请日：2023-10-11

Applicant: PixArt Imaging Inc.

Inventor： Guo-Zhen Wang ,  Hui-Hsuan Chen

IPC: G01S17/66 ,  G01S7/48 ,  G01S7/481 ,  G01S17/46 ,  G01S17/50 ,  G06T7/521 ,  H04N23/51 ,  H04N23/56 ,  G01S17/08 ,  G01S17/48 ,  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.

公开(公告)号：US12154334B2

公开(公告)日：2024-11-26

申请号：US18218045

申请日：2023-07-04

Applicant: PIXART IMAGING INC.

Inventor： Guo-Zhen Wang

IPC: G06V20/00 ,  G06F18/2413 ,  G06F18/243 ,  G06N3/045 ,  G06N3/08 ,  G06N20/00 ,  G06V10/44 ,  G06V10/764 ,  G06V10/82 ,  G06V20/70

Abstract: An image recognition method and system based on deep learning are provided. The image recognition system includes a first recognizing engine, at least one second recognizing engine and a processing circuit. The second recognizing engine is activated to recognize an image when the first recognizing engine is recognizing the image. The processing circuit determines whether to interrupt the first recognizing engine recognizing the image according to a result outputted by the second recognizing engine after the second recognizing engine completes recognition of the image.

公开(公告)号：US12147241B2

公开(公告)日：2024-11-19

申请号：US18371471

申请日：2023-09-22

Applicant: PixArt Imaging Inc.

Inventor： Guo-Zhen Wang

IPC: G05D1/00 ,  G06T5/00 ,  G06T7/62 ,  G06T7/70 ,  G06T7/73

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 toward a moving direction. The image sensor captures, toward the moving direction, an image frame containing a light segment image associated with the vertical light segment. The processing unit calculates a step distance and a segment feature according to the image frame, outputs a flag signal according to the segment feature to indicate whether the calculated step distance is confident or not, and perform a pixel interpolation in calculating the step distance to improve the identification accuracy.

公开(公告)号：US12106649B2

公开(公告)日：2024-10-01

申请号：US18509350

申请日：2023-11-15

Applicant: PixArt Imaging Inc.

Inventor： Cheng-Nan Tsai ,  Guo-Zhen Wang ,  Ching-Kun Chen ,  Yen-Chang Chu ,  Chih-Ming Sun

IPC: G08B17/10 ,  G08B17/107

CPC classification number: G08B17/107

Abstract: There is provided a smoke detector including a first light source, a second light source surface, a light sensor and a processor. The light sensor receives reflected light when the first light source and the second light source emit light, and generates a first detection signal corresponding to light emission of the first light source and a second detection signal corresponding to light emission of the second light source. The processor distinguishes smoke and floating particles according to a similarity between the first detection signal and the second detection signal.

公开(公告)号：US12106605B2

公开(公告)日：2024-10-01

申请号：US18225443

申请日：2023-07-24

Applicant: PIXART IMAGING INC.

Inventor： Guo-Zhen Wang ,  Han-Chang Lin

IPC: G06V40/16 ,  G06V10/10 ,  H04N23/611 ,  H04N23/65 ,  H04N23/667

CPC classification number: G06V40/166 ,  G06V10/17 ,  H04N23/611 ,  H04N23/651 ,  H04N23/667

Abstract: A portable electronic device and an operation method are provided. The portable electronic device includes a body, a screen, a camera, an image sensor and a main system. The image sensor continually captures a first image outside the body with a first resolution and a first power consumption. The camera is turned on in the first state of the portable electronic device by the main system to capture a second image outside the body with a second power consumption and a second resolution only when the face image information appeared for over two seconds on the screen is detected by the image sensor from the first image. The second resolution is higher than the first resolution, and the second power consumption is higher than the first power consumption.

公开(公告)号：US20240126297A1

公开(公告)日：2024-04-18

申请号：US18536285

申请日：2023-12-12

Applicant: PixArt Imaging Inc.

Inventor： Guo-Zhen Wang

IPC: G05D1/617 ,  A47L11/40 ,  G05D1/228 ,  G05D1/247 ,  G01C3/08 ,  G01C5/00

CPC classification number: G05D1/617 ,  A47L11/4011 ,  A47L11/4061 ,  G05D1/228 ,  G05D1/247 ,  A47L2201/04 ,  G01C3/08 ,  G01C5/00

Abstract: An auto clean machine, comprising: a light source configured to emit light to illuminate at least one light region outside and in front of the auto clean machine; a first image sensing area, configured to sense a first brightness distribution of the light region; a second image sensing area below the first image sensing area, configured to sense a second brightness distribution of the light region; and a processor, configured to control movement of the auto clean machine according the first brightness distribution and the second brightness distribution.

公开(公告)号：US11932062B2

公开(公告)日：2024-03-19

申请号：US17888434

申请日：2022-08-15

Applicant: PixArt Imaging Inc.

Inventor： Guo-Zhen Wang ,  Chang-Sheng Chiu

IPC: B60C25/00 ,  B60C11/24 ,  B60Q9/00 ,  G01B11/04 ,  G01B11/22 ,  G01B11/25 ,  G01M17/02 ,  G01S17/04 ,  B60K28/10

CPC classification number: B60C25/007 ,  B60C11/246 ,  B60Q9/00 ,  G01B11/046 ,  G01B11/22 ,  G01B11/2522 ,  G01M17/02 ,  G01S17/04 ,  B60K28/10

Abstract: A tire surface managing method, comprising: emitting detecting light to a target object on a surface of a tire; receiving reflected detecting light from the target object and from the surface adjacent to the target object; determining whether the target object protrudes according to a distance calculated according to the reflected detecting light from the target object and a distance calculated according to the reflected detecting light from the surface; determining whether the target object forms a hole on the surface according to the distance calculated according to the reflected detecting light from the target object and the distance calculated according to the reflected detecting light from the surface; receiving the reflected detecting light from the surface to calculate a width of the hole on the tire; and activating a protection mechanism for a vehicle comprising the tire if the width is larger than a width threshold.

公开(公告)号：US20240077350A1

公开(公告)日：2024-03-07

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

CPC classification number: G01F23/2928 ,  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.

公开(公告)号：US11815605B2

公开(公告)日：2023-11-14

申请号：US17162826

申请日：2021-01-29

Applicant: PIXART IMAGING INC.

Inventor： Guo-Zhen Wang ,  Ming-Tsan Kao

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

CPC classification number: 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：US11808852B2

公开(公告)日：2023-11-07

申请号：US17485518

申请日：2021-09-27

Applicant: PixArt Imaging Inc.

Inventor： Guo-Zhen Wang

IPC: G01S17/48 ,  G01S7/4912 ,  G01S7/4913

CPC classification number: G01S17/48 ,  G01S7/4912 ,  G01S7/4913

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.