公开(公告)号：US09092864B2

公开(公告)日：2015-07-28

申请号：US13943300

申请日：2013-07-16

Applicant: PIXART IMAGING INC.

Inventor： Chun-Wei Chen ,  Ren-Hau Gu ,  Shih-Wei Kuo

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

CPC classification number: G06T7/0044 ,  G06F3/0304 ,  G06F3/0317 ,  G06F3/03543 ,  G06F3/0383 ,  G06T7/74

Abstract: A displacement detection method includes the steps of: capturing a first frame and a second frame; selecting a first block with a predetermined size in the first frame and selecting a second block with the predetermined size in the second frame; determining a displacement according to the first block and the second block; comparing the displacement with at least one threshold; and adjusting the predetermined size according to a comparison result of comparing the displacement and the threshold. The present invention further provides a displacement detection apparatus.

Abstract translation: 位移检测方法包括以下步骤：捕获第一帧和第二帧; 在第一帧中选择具有预定尺寸的第一块，并在第二帧中选择具有预定尺寸的第二块; 确定根据第一块和第二块的位移; 将所述位移与至少一个阈值进行比较; 并根据比较位移和阈值的比较结果调整预定尺寸。 本发明还提供一种位移检测装置。

公开(公告)号：US09035913B2

公开(公告)日：2015-05-19

申请号：US13665821

申请日：2012-10-31

Applicant: PixArt Imaging Inc.

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

IPC: G06F3/042 ,  G06F1/32

CPC classification number: G06F1/3259 ,  Y02D10/155 ,  Y02D50/20

Abstract: A power-saving sensing module includes a light source, a first and a second sensor, a first and a second detection unit, and a controller. The first sensor detects a touch of an external object to generate a first sensing signal corresponding to the touch. The first detection unit generates a touch signal corresponding to the first sensing signal. The second sensor senses a second sensing signal corresponding to the external object in response to the light ray. When the touch signal is greater than a touch threshold value, the second detection unit outputs a displacement signal corresponding to the second sensing signal. The controller outputs a control signal in response to the touch signal of the first detection unit and the touch threshold value, so that the second 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。 第一传感器检测外部对象的触摸以产生对应于触摸的第一感测信号。 第一检测单元产生对应于第一感测信号的触摸信号。 第二传感器响应于光线感测对应于外部物体的第二感测信号。 当触摸信号大于触摸阈值时，第二检测单元输出与第二感测信号对应的位移信号。 控制器响应于第一检测单元的触摸信号和触摸阈值输出控制信号，使得第二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：US08891830B2

公开(公告)日：2014-11-18

申请号：US14138426

申请日：2013-12-23

Applicant: PixArt Imaging Inc.

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

IPC: G06K9/00 ,  G01B11/00 ,  G01B11/14 ,  G01S17/08 ,  G06K9/64

CPC classification number: G01B11/14 ,  G01B11/002 ,  G01S17/08 ,  G06K9/64

Abstract: A distance measurement system and method are provided. The distance measurement method first projects a light beam with a speckle pattern to reference planes and an object to allow the reference planes and a surface of the object each have an image of the speckle pattern, the speckle pattern having a plurality of speckles. Next, images of the speckle pattern reflected by the reference planes are captured to generate reference image information, and an image of the speckle pattern reflected by the surface of the object is captured to generate an object image information. A processing module which may be a processing software can compare the object image information with the reference image information to obtain several similarity scores. If the most the most similarity score is greater than a threshold value, the processing module identifies the corresponding reference plane, thereby computing the position of the object.

Abstract translation: 提供了距离测量系统和方法。 距离测量方法首先将具有散斑图案的光束投射到参考平面，并且使对象允许参考平面和物体的表面各自具有斑点图案的图像，斑点图案具有多个斑点。 接下来，捕获由参考平面反射的斑纹图案的图像以生成参考图像信息，并且捕获由对象的表面反射的斑纹图案的图像以生成对象图像信息。 可以是处理软件的处理模块可以将对象图像信息与参考图像信息进行比较，以获得多个相似度分数。 如果最相似性得分大于阈值，则处理模块识别对应的参考平面，由此计算对象的位置。

公开(公告)号：US08699757B2

公开(公告)日：2014-04-15

申请号：US13967430

申请日：2013-08-15

Applicant: PixArt Imaging Inc.

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

IPC: G06K9/00

CPC classification number: G06K9/6215 ,  G01B11/026 ,  G01S17/46

Abstract: A storage media provided by the present invention, has a non-transitory processing software for computing a position of an object in a distance measurement system, the execution of the processing software comprising: receiving a plurality of reference image information contained in an image with a speckle pattern, wherein the image is projected from a light beam on a plurality of reference flat surfaces which are located on different position points, and the speckle contains a plurality of speckles; receiving an object image information contained in an image with the speckle pattern which is projected from the light beam on an object; obtaining a plurality of comparison results through comparing the plurality of reference image information with the object image information; and computing the position of the object through performing an interpolation operation to the plurality of comparison results.

Abstract translation: 由本发明提供的存储介质具有用于计算距离测量系统中的对象的位置的非暂时性处理软件，所述处理软件的执行包括：接收包含在图像中的多个参考图像信息 斑纹图案，其中图像从位于不同位置点上的多个参考平面上的光束投射，并且斑点包含多个斑点; 接收包含在图像中的物体图像信息，其中所述斑点图案从光束投影在物体上; 通过将多个参考图像信息与对象图像信息进行比较来获得多个比较结果; 以及通过对所述多个比较结果执行内插操作来计算所述对象的位置。