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公开(公告)号：US20180231662A1
公开(公告)日：2018-08-16
申请号：US15953554
申请日：2018-04-16
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：US20160187468A1
公开(公告)日：2016-06-30
申请号：US14821966
申请日：2015-08-10
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.
Abstract translation: 公开了距离测量方法和距离测量装置。 在距离测量期间，获得图像。 如果图像的重心的位置在第一段内，则计算单元根据第一映射关系和第一映射关系来计算对象和距离测量装置对应于投影点的距离 影像的重力。 如果图像的重心位置在第二段内，则计算单元根据第二映射关系和重心的位置来计算与投影点对应的物体与距离测量装置之间的距离 的图像。
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13.发明申请DEVICE AND METHOD FOR DETERMINING GESTURE AND OPERATION METHOD OF GESTURE DETERMINING DEVICE 有权用于确定姿势的装置和方法以及确定装置的操作方法公开(公告)号：US20150310266A1
公开(公告)日：2015-10-29
申请号：US14791231
申请日：2015-07-02
Applicant: PIXART IMAGING INC.
Inventor： YU-HAO HUANG , MING-TSAN KAO , SEN-HUANG HUANG , NIEN-TSE CHEN , EN-FENG HSU , YI-YUAN CHEN
CPC classification number: G06K9/00389 , G06F3/017 , G06K9/00335 , G06K9/00355 , G06T2207/30196
Abstract: A device for determining a gesture includes a light emitting unit, an image sensing device and a processing circuit. The light emitting unit emits a light beam. The image sensing device captures an image of a hand reflecting the light beam. The processing circuit obtains the image and determines a gesture of the hand by performing an operation on the image; wherein the operation includes: selecting pixels in the image having a brightness greater than or equal to a brightness threshold; dividing the selected pixels; and determining the gesture of the hand according to a number of group of divided pixels. A method for determining a gesture and an operation method of the aforementioned device are also provided.
Abstract translation: 用于确定手势的装置包括发光单元，图像感测装置和处理电路。 发光单元发射光束。 图像感测装置捕获反射光束的手的图像。 处理电路通过对图像执行操作来获得图像并确定手势， 其中所述操作包括：选择具有大于或等于亮度阈值的亮度的图像中的像素; 划分所选择的像素; 以及根据分组像素组的数量确定手的手势。 还提供了一种用于确定上述装置的手势和操作方法的方法。
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公开(公告)号：US20140160020A1
公开(公告)日：2014-06-12
申请号：US13931994
申请日：2013-06-30
Applicant: Pixart Imaging Inc
Inventor： YU-HAO HUANG , MING-TSAN KAO , EN-FENG HSU , YI-YUAN CHEN , MENG-HUAN HSIEH
IPC: G06F3/0354 , G06F3/042
CPC classification number: G06F3/0421 , G06F3/011 , G06F3/017 , G06F3/0304 , G06F3/0416 , G06K9/00375
Abstract: An operation method of an optical touch device includes: emitting, by a light emitting unit, a light beam to illuminate an object; capturing, by an image sensing device, an image of the object reflecting the light beam; selecting all pixels in the image having a brightness greater than or equal to a brightness threshold; sorting the selected pixels along a first coordinate axis of the image, a second coordinate axis of the image or based a pixel brightness; selecting the top first predetermined ratio of pixels from the sorted pixels as an object image of the object; and calculating a gravity center of the object image according to positions of the top first predetermined ratio of pixels or according to the positions of the top first predetermined ratio of pixels with a weight of pixel brightness. An optical touch device is also provided.
Abstract translation: 光触摸装置的操作方法包括：通过发光单元发射光束照射物体; 通过图像感测装置捕获反射光束的物体的图像; 选择具有大于或等于亮度阈值的亮度的图像中的所有像素; 沿着图像的第一坐标轴，图像的第二坐标轴或者基于像素亮度对所选择的像素进行排序; 从所述分类像素中选择所述顶部第一预定比例的像素作为所述对象的对象图像; 以及根据所述顶部第一预定比例的像素的位置或根据所述顶部第一预定比例像素的位置与像素亮度的权重来计算所述对象图像的重心。 还提供了一种光学触摸装置。
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公开(公告)号：US20140145947A1
公开(公告)日：2014-05-29
申请号：US14087151
申请日：2013-11-22
Applicant: PIXART IMAGING INC.
Inventor： SHU-SIAN YANG , MING-TSAN KAO
CPC classification number: G06F3/017 , G06F3/0304
Abstract: There is provided a pointing system including a first image sensor, a second image sensor and a processing unit. The first image sensor is configured to capture a first image. The processing unit is configured to recognize a predetermined hand posture according to the first image and to identify a click event according to a second image captured by the second image sensor when the predetermined hand posture is recognized.
Abstract translation: 提供了一种包括第一图像传感器，第二图像传感器和处理单元的指示系统。 第一图像传感器被配置为捕获第一图像。 所述处理单元被构造为根据所述第一图像识别预定手势，并且当识别出所述预定手势时，根据由所述第二图像传感器捕获的第二图像识别点击事件。
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Patent Agency Ranking
公开(公告)号：US20240071136A1
公开(公告)日：2024-02-29
申请号：US18386603
申请日：2023-11-03
Applicant: PixArt Imaging Inc.
Inventor： LIANG-CHI CHIU , YU-HAN CHEN , MING-TSAN KAO
CPC classification number: G06V40/174 , B60R25/25 , G06V20/59 , G06V2201/10
Abstract: A vehicle device setting method including: capturing, by an image sensing unit, a first image frame; recognizing a user ID according to the first image frame; showing ID information of the recognized user ID on a screen or by a speaker; capturing a second image frame; generating a confirm signal when a first user expression is recognized by calculating an expression feature in the second image frame and comparing the recognized expression feature with stored expression data associated with a predetermined user expression to confirm whether the recognized user ID is correct or not according to the second image frame captured after the ID information is shown; controlling an electronic device according to the confirm signal; and entering a data update mode instructed by the user and updating setting information of the electronic device by current electronic device setting according to a saving signal generated by confirming a second user expression in a third image frame captured after the user ID is confirmed through showing the ID information.
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公开(公告)号：US20210149050A1
公开(公告)日：2021-05-20
申请号：US17162826
申请日：2021-01-29
Applicant: PIXART IMAGING INC.
Inventor： GUO-ZHEN WANG , MING-TSAN KAO
IPC: 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.
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公开(公告)号：US20200319716A1
公开(公告)日：2020-10-08
申请号：US16909298
申请日：2020-06-23
Applicant: PixArt Imaging Inc.
Inventor： SEN-HUANG HUANG , MING-TSAN KAO , EN-FENG HSU , YU-HAO HUANG , NIEN-TSE CHEN
Abstract: The present invention provides a motion detecting system, which includes a light source module, a plurality of image sensors and a control unit. The light source module illuminates at least one object. The image sensors respectively detect the object under the light emitted by the light source module to generate a plurality of detection results. The control unit is coupled to the image sensors, and generates a control command according to the detection results.
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公开(公告)号：US20200065579A1
公开(公告)日：2020-02-27
申请号：US16672568
申请日：2019-11-04
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：US20190187289A1
公开(公告)日：2019-06-20
申请号：US16281330
申请日：2019-02-21
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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