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公开(公告)号：US20190297279A1
公开(公告)日：2019-09-26
申请号：US16435881
申请日：2019-06-10
Applicant: PixArt Imaging Inc.
Inventor： GUO-ZHEN WANG , YI-LEI CHEN
Abstract: A ranging system including a first aperture stop, a second aperture stop, an image sensor and a processing unit is provided. The first aperture stop includes a sheet of IR-cut filter material. The second aperture stop includes a sheet of opaque material. The image sensor receives light passing through the first and second aperture stops to output an image frame. The processing unit respectively calculates a convolution between a first color subframe of the image frame and a plurality of first blur kernels to generate a plurality of blurred first frames, respectively calculates a convolution between a second color subframe of the image frame and a plurality of second blur kernels to generate a plurality of blurred second frames, and performs a best matching between the blurred first frames and the blurred second frames.
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公开(公告)号：US20180302545A1
公开(公告)日：2018-10-18
申请号：US16012982
申请日：2018-06-20
Applicant: PixArt Imaging Inc.
Inventor： GUO-ZHEN WANG , SHIAW-YU JOU
Abstract: There is provided an optical distance measurement system including an image sensor and a processing unit. The processing unit is configured to generate an image to be calculated according to at least one image captured by the image sensor, wherein different image regions of the image to be calculated correspond to different exposure times thereby improving the accuracy of the distance calculation.
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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：US20180005382A1
公开(公告)日：2018-01-04
申请号：US15707583
申请日：2017-09-18
Applicant: PIXART IMAGING INC.
Inventor： GUO-ZHEN WANG , HAN-CHANG LIN
CPC classification number: G06T7/20 , G01J5/0025 , G06F3/0304 , G06K9/00362 , G06K9/209 , G06K9/4604 , G06T7/10 , G06T7/254 , G06T7/30 , G06T7/60 , G06T2207/10016 , G06T2207/10048 , G06T2207/30196 , H04N5/332
Abstract: An image recognition system includes a processing module, a sensor module, and a database. The sensor module is electrically connected to the processing module. The database is electrically connected to the processing module. The sensor module configured for capturing at least one image. The at least one image is stored in the database. The processing captures a contour of an object from the at least one image and separates the contour of the object into a plurality of portions. A plurality of arrangements is defined between the portions of the contour of the object. The processing module determines a state of the contour of the object based on the arrangements.
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公开(公告)号：US20170353699A1
公开(公告)日：2017-12-07
申请号：US15608109
申请日：2017-05-30
Applicant: PIXART IMAGING INC.
Inventor： GUO-ZHEN WANG
CPC classification number: H04N7/188 , G06K9/00771 , G08B13/19602 , G08B13/19695 , H04N5/23241 , H04N5/23245 , H04N7/18
Abstract: The disclosure is related to a surveillance system and an operation method thereof. The surveillance system includes an auxiliary sensor module that is in full-time operation, and a main sensor module that is in a power-saving mode at a normal state. The main sensor is in operation only if the signals generated by the auxiliary sensor module meet a criterion of surveillance. The surveillance system can reduce power consumption since the more powerful main sensor module stays in the power-saving mode without actuation. The surveillance system can process the surveillance data generated by the auxiliary sensor module since it adopts the steps of ROI detection, feature extraction, and object recognition in an early stage of a whole surveillance process.
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Patent Agency Ranking
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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公开(公告)号：US20160123723A1
公开(公告)日：2016-05-05
申请号：US14731713
申请日：2015-06-05
Applicant: PIXART IMAGING INC.
Inventor： GUO-ZHEN WANG
CPC classification number: G01B11/14 , G06K9/46 , G06K9/4661 , G06K2009/4666 , H04N5/2351 , H04N5/2353 , H04N5/2355
Abstract: There is provided an optical distance measurement system including an image sensor and a processing unit. The processing unit is configured to generate an image to be calculated according to at least one image captured by the image sensor, wherein different image regions of the image to be calculated correspond to different exposure times thereby improving the accuracy of the distance calculation.
Abstract translation: 提供了包括图像传感器和处理单元的光学距离测量系统。 处理单元被配置为根据由图像传感器捕获的至少一个图像生成要计算的图像，其中要计算的图像的不同图像区域对应于不同的曝光时间，从而提高距离计算的精度。
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38.发明公开公开(公告)号：US20240131716A1
公开(公告)日：2024-04-25
申请号：US18401776
申请日：2024-01-02
Applicant: PixArt Imaging Inc.
Inventor： GUO-ZHEN WANG
CPC classification number: B25J9/1697 , A47L9/2826 , A47L11/4061 , B25J9/1666 , B25J11/0085 , A47L2201/04
Abstract: There is provided a cleaning robot including a light source module, an image sensor and a processor. The light source module projects a line pattern and a speckle pattern toward a moving direction. The image sensor captures an image of the line pattern and an image of the speckle pattern. The processor calculates one-dimensional depth information according to the image of the line pattern and calculates two-dimensional depth information according to the image of the speckle pattern.
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公开(公告)号：US20240089581A1
公开(公告)日：2024-03-14
申请号：US18510725
申请日：2023-11-16
Applicant: PixArt Imaging Inc.
Inventor： HAN-CHANG LIN , GUO-ZHEN WANG , NIEN-TSE CHEN
CPC classification number: H04N23/611 , G02B27/0093 , G06F3/013 , G06V40/161 , G06V40/18 , H04N23/61 , H04N23/63
Abstract: An electronic system including an image sensor, a face detection engine, an eye detection engine and an eye protection engine is provided. The image sensor captures an image. The face detection engine recognizes a user face in the image. The eye detection engine recognizes user eyes in the image. The eye protection engine turns off a display device when the user eyes are recognized in the image but the user face is not recognized in the image.
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公开(公告)号：US20240036204A1
公开(公告)日：2024-02-01
申请号：US18378837
申请日：2023-10-11
Applicant: PixArt Imaging Inc.
Inventor： GUO-ZHEN WANG , HUI-HSUAN CHEN
CPC classification number: G01S17/66 , G01S17/50 , G06T7/521 , G01S7/4816 , G01S17/46 , G01S7/4815 , G01S7/4808 , H04N23/51 , H04N23/56 , G06T2207/10004 , G06T2207/10152 , 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.
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