公开(公告)号：US20180059807A1

公开(公告)日：2018-03-01

申请号：US15800079

申请日：2017-11-01

Applicant: PixArt Imaging Inc.

Inventor： Chun-Wei Chen ,  Ren-Hau Gu

IPC: G06F3/03

CPC classification number: G06F3/0317

Abstract: An image processing method capable of detecting noise includes adjusting a lighting unit to acquire an over-exposure image, comparing each pixel of the over-exposure image with at least one threshold value, labeling a pixel of the over-exposure image as the noise while bright intensity of the pixel is lower than the threshold value, calculating a simulating value according to bright intensity of pixels around the noise and except the noise, and utilizing the simulating value and bright intensity of other pixels except the noise to execute a displacement detecting calculation.

公开(公告)号：US20160238386A1

公开(公告)日：2016-08-18

申请号：US15136991

申请日：2016-04-25

Applicant: PixArt Imaging Inc.

Inventor： Shu-Sian Yang ,  Hsin-Chia Chen ,  Ren-Hau Gu ,  Sen-Huang Huang

IPC: G01C3/08 ,  H04N5/225 ,  H04N5/33 ,  H04N7/18

CPC classification number: G01C3/08 ,  G01B11/026 ,  G01B11/2441 ,  H04N5/2256 ,  H04N5/33 ,  H04N7/183

Abstract: A distance measuring system includes a light source module, an image capturing device and a processing module. The light source module transmits a light beam having a speckle pattern to a first flat surface and a second flat surface, and an object. The image capturing device captures the image of the speckle pattern shown on the first and second flat surfaces, and captures the image of the speckle pattern shown on a surface of the object to produce first reference image information, second reference image information, and object image information. The processing module calculates a displacement vector of the speckle pattern according to the first and second reference image information. The processing module calculates the relative distance between the object and the first flat surface or the second flat surface according to the position of the speckle pattern on the object image information and the displacement vector.

Abstract translation: 测距系统包括光源模块，摄像装置和处理模块。 光源模块将具有斑纹图案的光束传送到第一平面和第二平面，以及物体。 图像拍摄装置捕获第一和第二平面上所示的斑纹图案的图像，并且捕获在对象的表面上示出的散斑图案的图像，以产生第一参考图像信息，第二参考图像信息和对象图像 信息。 处理模块根据第一和第二参考图像信息计算散斑图案的位移矢量。 处理模块根据对象图像信息和位移矢量上的散斑图案的位置来计算物体与第一平坦表面或第二平坦表面之间的相对距离。

公开(公告)号：US09316563B2

公开(公告)日：2016-04-19

申请号：US13875307

申请日：2013-05-02

Applicant: PixArt Imaging Inc.

Inventor： Ching-Chih Chen ,  Ren-Hau Gu ,  Chih-Yen Wu ,  Yao-Hsuan Lin ,  Tzu-Yu Chen

IPC: G01M11/00 ,  H04N17/02 ,  H04N1/00 ,  H04N17/00

CPC classification number: G01M11/00 ,  H04N1/00021 ,  H04N1/00039 ,  H04N1/0005 ,  H04N1/00074 ,  H04N17/002

Abstract: A method of testing an image sensor having a plurality of sensing units includes: utilizing the image sensor to generate a plurality of sensing results respectively corresponding to a plurality of captured images, wherein each sensing result includes a plurality of sensing values respectively generated by the sensing units; and generating a testing result which indicates a performance of the image sensor according to changing of the sensing results.

Abstract translation: 一种测试具有多个感测单元的图像传感器的方法包括：利用图像传感器产生分别对应于多个捕获图像的多个感测结果，其中每个感测结果包括分别由感测产生的多个感测值 单位; 以及根据感测结果的变化产生指示图像传感器的性能的测试结果。

公开(公告)号：US09269148B2

公开(公告)日：2016-02-23

申请号：US13858131

申请日：2013-04-08

Applicant: PixArt Imaging Inc.

Inventor： Ming-Tsan Kao ,  Ren-Hau Gu ,  Yu-Hao Huang

IPC: G06K9/00 ,  G06T7/00 ,  G06T7/20 ,  G06F3/03 ,  G06F3/038 ,  G06F3/0354

CPC classification number: G06T7/004 ,  G06F3/0304 ,  G06F3/0317 ,  G06F3/03543 ,  G06F3/0383 ,  G06T7/246 ,  G06T2207/10016

Abstract: A displacement detection device includes a light source, an image sensor and a processing unit. The light source is configured to illuminate a work surface. The image sensor is configured to capture reflected light from the work surface and to output an image frame. The processing unit is configured to select a window of interest in the image frame having a maximum image feature and to calculate a displacement of the displacement detection device according to the window of interest.

Abstract translation: 位移检测装置包括光源，图像传感器和处理单元。 光源被配置为照亮工作表面。 图像传感器被配置为捕获来自工作表面的反射光并输出图像帧。 处理单元被配置为在具有最大图像特征的图像帧中选择感兴趣的窗口，并且根据感兴趣的窗口来计算位移检测装置的位移。

公开(公告)号：US09194740B2

公开(公告)日：2015-11-24

申请号：US13792168

申请日：2013-03-10

Applicant: PixArt Imaging Inc.

Inventor： Ren-Hau Gu ,  Ming-Tsan Kao ,  Sen-Huang Huang

IPC: A61B5/117 ,  G01N33/483 ,  G06K9/00 ,  G06K9/78 ,  G01J1/02 ,  G01B11/14 ,  G01J1/04 ,  G01J1/06 ,  G01J1/08 ,  G01J1/42

CPC classification number: G01J1/0204 ,  G01B11/14 ,  G01J1/0411 ,  G01J1/06 ,  G01J1/08 ,  G01J1/4228 ,  G06F3/03547 ,  G06F3/042 ,  G06F2203/0338 ,  G06K9/00033 ,  G06K2009/0006

Abstract: An image capturing apparatus comprising: a light source, for transmitting incident light to an objective without utilizing any medium besides air, such that the light emits from the objective to generate passing-through light; and a sensor, for capturing an image of the objective according to the passing-through light.

Abstract translation: 一种摄像装置，包括：光源，用于将入射光发射到物镜而不利用空气之外的任何介质，使得光从物镜发射以产生通过光; 以及用于根据通过光捕获物镜的图像的传感器。

公开(公告)号：US09013407B2

公开(公告)日：2015-04-21

申请号：US13665808

申请日：2012-10-31

Applicant: PixArt Imaging Inc.

Inventor： Ren-Hau Gu ,  Ming-Tsan Kao ,  Sen-Huang Huang

IPC: G09G5/08 ,  G06F3/033

CPC classification number: G06F3/033 ,  G06F1/3231 ,  G06F1/3259 ,  G06F3/0304 ,  G06F3/03543 ,  G06F3/0383 ,  Y02D10/155 ,  Y02D10/173 ,  Y02D50/20

Abstract: A power-saving sensing module includes a light source, first and second sensors, first and second detection units, and a controller. The first sensor detects a first image corresponding to a working plane in response to at least a part of the light ray from the light source to generate a first sensing signal. The first detection unit generates a displacement signal in response to the first sensing signal. The second sensor detects a second image corresponding to an object in response to at least a part of light ray to generate a second sensing signal. The second detection unit generates a touch signal corresponding to the object in response to the second sensing signal. The controller outputs a control signal in response to the touch signal. The first detection unit operates at a dormant state or a sensing state in response to the control signal.

Abstract translation: 省电感测模块包括光源，第一和第二传感器，第一和第二检测单元以及控制器。 响应于来自光源的光线的至少一部分，第一传感器检测对应于工作平面的第一图像以产生第一感测信号。 第一检测单元响应于第一感测信号产生位移信号。 第二传感器响应于至少一部分光线检测与物体相对应的第二图像以产生第二感测信号。 第二检测单元响应于第二检测信号产生与物体相对应的触摸信号。 控制器响应于触摸信号输出控制信号。 第一检测单元响应于控制信号而处于休眠状态或感测状态。

公开(公告)号：US11672444B2

公开(公告)日：2023-06-13

申请号：US17582083

申请日：2022-01-24

Applicant: PIXART IMAGING INC.

Inventor： Ren-Hau Gu ,  Chung-Wen Lo

IPC: A61B5/11 ,  A61B5/00 ,  A61B5/024

CPC classification number: A61B5/1123 ,  A61B5/1107 ,  A61B5/0059 ,  A61B5/02416 ,  A61B5/681 ,  A61B5/6824 ,  A61B2562/0219

Abstract: An action recognition system is illustrated. The action recognition system has an annular body, at least one light emitting unit, at least one light sensing unit and an action recognition module. The annular body is worn on a movable part of a user. One end of the light emitting unit is exposed on an inner side of the annular body, wherein the light emitting unit emits a first light beam illuminating at least a portion of the movable part. One end of the light sensing unit is exposed on the inner side of the annular body. The light sensing unit operatively senses a second light beam reflected by the at least portion of the movable part and generates a light sensing signal. The action recognition module is configured to operatively determine an action of the user according to the light sensing signal.

公开(公告)号：US11583183B2

公开(公告)日：2023-02-21

申请号：US16401523

申请日：2019-05-02

Applicant: PixArt Imaging Inc.

Inventor： Ming-Chang Li ,  Ren-Hau Gu

IPC: A61B5/024 ,  A61B5/00 ,  A61B5/1455

Abstract: There is provided a physiological detection device including a light source, a light detector, a processing unit and a display device. The light source emits light to illuminate a skin surface. The light detector receives the light from the skin surface to output detected signals. The processing unit confirms an attached state according to the detected signals and controls the display device to show an indication signal or a warning message when the attached state is confirmed not good.

公开(公告)号：US20220179450A1

公开(公告)日：2022-06-09

申请号：US17680243

申请日：2022-02-24

Applicant: PixArt Imaging Inc.

Inventor： Ming-Hung Tsai ,  Tse-Chung Su ,  Ren-Hau Gu ,  Tzung-Min Su

IPC: G06F1/16 ,  G06F3/041 ,  G06F3/044

Abstract: An electronic device with a function of detecting a touch state, comprising: at least one first electrode, configured to generate a first capacitance reflecting a distance between the first electrode and an object; at least one second electrode, configured to generate a second capacitance reflecting a distance between the second electrode and the object, and wherein a first distance between the first electrode and the object is smaller than a second distance between the second electrode and the object when the electronic is in a wearing state; a capacitance calculating circuit, configured to calculate the first capacitance and the second capacitance; and a processing circuit, configured to determine if the electronic device is in the wearing state based on a capacitance difference between the first capacitance and the second capacitance. Via such structure, the touch state of the electronic device can be precisely acquired.

公开(公告)号：US11294171B2

公开(公告)日：2022-04-05

申请号：US16840477

申请日：2020-04-06

Applicant: PixArt Imaging Inc.

Inventor： Ren-Hau Gu ,  Chih-Hsin Lin

IPC: G02B27/00 ,  A61B5/00 ,  A61B5/024 ,  A61B5/1455

Abstract: A light sensing method, applied to a light sensing system comprising a light sensor and at least one light source. The light sensor comprises a plurality of light sensing units. The light sensing method comprises: controlling the light sensor to capture images according to the light source; generating an exposure condition according brightness that each of the light sensing units senses, to control all the light sensing units to generate a target brightness distribution according to the exposure condition; and controlling the light sensing units to sense light from the light source according to the exposure condition. The light sensing system can have a better SNR via adjusting the exposure condition for each one of the light sensing units. Such light sensing method can be applied to compute physiological parameters.