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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
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.
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公开(公告)号：US10198631B2
公开(公告)日：2019-02-05
申请号：US15253503
申请日：2016-08-31
Applicant: PIXART IMAGING INC.
Inventor： Yu-Hao Huang , Ming-Tsan Kao , Yi-Fang Lee , En-Feng Hsu , Meng-Huan Hsieh , Nien-Tse Chen
Abstract: There is provided a pupil tracking device including an active light source, an image sensor and a processing unit. The active light source emits light toward an eyeball alternatively in a first brightness value and a second brightness value. The image sensor captures a first brightness image corresponding to the first brightness value and a second brightness image corresponding to the second brightness value. The processing unit identifies a brightest region at corresponding positions of the first brightness image and the second brightness image as an active light image.
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公开(公告)号：US09842249B2
公开(公告)日：2017-12-12
申请号：US13940744
申请日：2013-07-12
Applicant: PixArt Imaging Inc
Inventor： Yu-Hao Huang , Ming-Tsan Kao , Sen-Huang Huang
CPC classification number: G06K9/00335 , G06T7/50 , G06T7/60
Abstract: A gesture recognition method with improved background suppression includes the following steps. First, a plurality of images are sequentially captured. Next, a position of at least one object in each of the images is calculated to respectively obtain a moving vector of the object at different times. Then, an average brightness of the object in each of the images is calculated. Finally, magnitudes of the moving vectors of the object at different times are respectively adjusted according to the average brightness of the object in each of the images. There is further provided a gesture recognition apparatus using the method mentioned above.
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4.发明授权公开(公告)号：US09582074B2
公开(公告)日：2017-02-28
申请号：US13910123
申请日：2013-06-05
Applicant: PixArt Imaging Inc.
Inventor： Yu-Hao Huang , Yi-Fang Lee , Ming-Tsan Kao
Abstract: A controlling method for an electronic apparatus is disclosed. The method comprises: detecting a location for vision of an eye on a display of the electronic apparatus; controlling the electronic apparatus to operate in a first mode if a time period for the vision stops on an objective on the display is not larger than a predetermined time period; and controlling the electronic apparatus to operate in a second mode if the time period for the vision stops on an objective on the display is larger than the predetermined time period. The electronic apparatus detects at least turning operation for a head comprising the eye and performs corresponding operation according to the turning operation in the second mode.
Abstract translation: 公开了一种电子设备的控制方法。 该方法包括：在电子设备的显示器上检测眼睛的视觉位置; 如果在显示器上的目标上停止视觉的时间段，则控制电子设备以第一模式操作不大于预定时间段; 以及如果在所述显示器上的目标上停止的视觉的时间段大于所述预定时间段，则控制所述电子设备在第二模式中操作。 电子设备至少检测包括眼睛的头部的旋转操作，并根据第二模式中的转动操作执行相应的操作。
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公开(公告)号：US09435646B2
公开(公告)日：2016-09-06
申请号：US13758304
申请日：2013-02-04
Applicant: PixArt Imaging Inc.
Inventor： Yu-Hao Huang , Hsin-Chia Chen , Ming-Tsan Kao , Sen-Huang Huang
IPC: G01C11/02 , G06F1/32 , G06F3/038 , G06F3/0354 , G06F3/03
CPC classification number: G01C11/02 , G06F1/3259 , G06F3/0317 , G06F3/03543 , G06F3/03547 , G06F3/0383 , G06F2203/0338 , Y02D10/155
Abstract: There is provided a displacement detection device including an image sensor, a light source, a light control unit and a processing unit. The image sensor captures image frames at a sampling frequency. The light source provides, in a speed mode, light for the image sensor in capturing the image frames. The light control unit controls the light source with the speed mode to turn on at a lighting frequency or to turn off serially. The processing unit calculates a displacement according to the image frames captured when the light source turns on to be served as an estimated displacement for an interval during which the light source turns off. There is further provided an operating method of a displacement detection device.
Abstract translation: 提供了包括图像传感器，光源，光控制单元和处理单元的位移检测装置。 图像传感器以采样频率捕获图像帧。 光源在速度模式下提供用于图像传感器捕获图像帧的光。 光控制单元以速度模式控制光源，以点亮频率开启或连续关闭。 处理单元根据在光源打开时拍摄的图像帧来计算作为光源关闭的间隔的估计位移的位移。 还提供了一种位移检测装置的操作方法。
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Patent Agency Ranking
6.发明授权Lane departure warning system, lane identification apparatus and related method thereof 有权车道离场预警系统，车道识别装置及其相关方法公开(公告)号：US09286805B2
公开(公告)日：2016-03-15
申请号：US13951483
申请日：2013-07-26
Applicant: PixArt Imaging Inc.
Inventor： Tse-Chung Su , Ming-Tsan Kao
CPC classification number: G06K9/00798 , G06K9/4638 , G06K9/4661 , G06T2207/30256 , G08G1/167
Abstract: The present invention provides a lane departure warning system including an image sensing device, an identification module and a determination module. The image sensing device generates a video. The identification module identifies a plurality of lane lines of at least one lane on which a vehicle is currently driven from the video, to generate an identification result, wherein the identification result is generated based on specific borderlines of the lane lines. The determination module determines a determination strategy according to vehicle speed information, and generates a determination result according to the determination strategy and the identification result. The lane departure warning system determines whether to issue a warning according to the determination result.
Abstract translation: 本发明提供了一种车道偏离警报系统，其包括图像感测装置，识别模块和确定模块。 图像感测装置生成视频。 所述识别模块从所述视频识别车辆当前被驱动的至少一个车道的多个车道线，以生成识别结果，其中所述识别结果是基于车道线的特定边界线产生的。 确定模块根据车速信息确定确定策略，并根据确定策略和识别结果产生确定结果。 车道偏离警告系统根据确定结果确定是否发出警告。
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7.发明授权Exposure mechanism of optical touch system and optical touch system using the same 有权光触摸系统和光触摸系统的曝光机制使用相同公开(公告)号：US09285927B2
公开(公告)日：2016-03-15
申请号：US14052520
申请日：2013-10-11
Applicant: PixArt Imaging Inc
Inventor： Ming-Tsan Kao , Tzung-Min Su , Chih-Hsin Lin
CPC classification number: G06F3/0421 , G06F3/0416
Abstract: An exposure mechanism of an optical touch system, which includes a plurality of image sensors and a plurality of active light sources each irradiating corresponding to the associated image sensor, includes: capturing image frames using the image sensors with a sampling cycle to allow each of the image sensors to capture a bright image, wherein the sampling cycle includes a plurality of working modes and in each of the working modes at least one of the image sensors captures the bright image in a sampling interval; simultaneously capturing a dark image using all the image sensors in a denoising sampling interval; and calculating a differential image between the bright image and the dark image captured by each image sensor.
Abstract translation: 光学触摸系统的曝光机构包括：多个图像传感器和对应于相关联的图像传感器照射的多个活动光源，包括：利用图像传感器以采样周期捕获图像帧，以允许每个 用于捕获明亮图像的图像传感器，其中所述采样周期包括多个工作模式，并且在每个所述工作模式中，所述图像传感器中的至少一个以采样间隔捕获所述亮度图像; 在去噪采样间隔内同时使用所有图像传感器捕获暗图像; 并且计算由每个图像传感器捕获的亮图像和暗图像之间的差分图像。
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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
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。
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公开(公告)号：US09207809B2
公开(公告)日：2015-12-08
申请号：US13856432
申请日：2013-04-03
Applicant: PixArt Imaging Inc.
Inventor： Tzung-Min Su , Chi-Chieh Liao , Han-Ping Cheng , Chih-Hsin Lin , Ming-Tsan Kao
CPC classification number: G06F3/042 , G06F3/0418 , G06F3/0428 , G06F2203/04104
Abstract: An optical touch control method includes steps of: providing a bright background from at least one edge of a touch surface in a first period; providing illumination light to the touch surface in a second period; capturing a first image of an indicator object blocking a portion of the bright background in the first period; and capturing a second image of the indicator object reflecting the illumination light in the second period. An optical touch system is also provided.
Abstract translation: 光学触摸控制方法包括以下步骤：在第一周期中从触摸表面的至少一个边缘提供明亮的背景; 在第二周期中向所述触摸表面提供照明光; 捕获在所述第一周期中阻挡所述明亮背景的一部分的指示对象的第一图像; 以及在所述第二周期中捕获反映所述照明光的所述指示对象的第二图像。 还提供了光学触摸系统。
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10.发明授权公开(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。
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