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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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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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Patent Agency Ranking
公开(公告)号：US20240288580A1
公开(公告)日：2024-08-29
申请号：US18656814
申请日：2024-05-07
Applicant: PIXART IMAGING INC.
Inventor： GUO-ZHEN WANG , Tse-En Peng
Abstract: An optical system and a method for eliminating misjudgment of reflective lights are provided. The method includes: emitting a detection light by a light source; receiving reflective light signals by a light sensor; and configuring a processing circuit to: generate a characteristic pattern according to the reflective light signals received by the light sensor; analyze the characteristic pattern and determine whether or not the characteristic pattern includes a plurality of sub-patterns; in response to determining that the characteristic pattern includes the plurality of sub-patterns, compare positions of the sub-patterns with a reference position of a reference pattern; and select the sub-pattern having the position that is closest to the reference position to determine whether an object possesses and eliminate misjudgment caused by the reflective lights.
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公开(公告)号：US20240159901A1
公开(公告)日：2024-05-16
申请号：US18418767
申请日：2024-01-22
Applicant: PIXART IMAGING INC.
Inventor： GUO-ZHEN WANG
Abstract: An optical sensing system is provided. The optical sensing system includes a first light source, a second light source, a light sensor, and a processor. The processor is configured to: control the first light source to scan a horizontal detection area; control the light sensor to capture a first frame by receiving first reflective lights from the horizontal detection area; obtain a first reflection pattern, and analyze the first reflection pattern to determine whether an object is within the first portion; if so, control the second light source to scan a first vertical detection area; control the light sensor to capture a second frame from the first vertical detection area; process the second frame to obtain a second reflection pattern, and analyze the second reflection pattern to determine whether the object is detected by a misjudgment.
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公开(公告)号：US20240042630A1
公开(公告)日：2024-02-08
申请号：US18381108
申请日：2023-10-17
Applicant: PIXART IMAGING INC.
Inventor： GUO-ZHEN WANG
CPC classification number: B25J19/021 , G01S17/04 , A47L2201/04
Abstract: A method for eliminating misjudgment of a reflective light is provided. A light source emits a transverse linear light toward a direction of a floor as detection light and the light sensor senses reflective light signals from an object that reflects the detection light. In the method, a frame image including the reflective light signals is captured by the light sensor, centers of gravity of the reflective light signals are analyzed, and the centers of gravity of the reflective light signals can be corrected based on a line of gravity or a center of gravity of previous reflective light signals stored in a memory of the autonomous robot in order to exclude a center of gravity generated by the reflective light signal from a wall. A distance of the object can be confirmed based on the corrected centers of gravity of reflective light signals.
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公开(公告)号：US20230368572A1
公开(公告)日：2023-11-16
申请号：US18225443
申请日：2023-07-24
Applicant: PIXART IMAGING INC.
Inventor： GUO-ZHEN WANG , HAN-CHANG LIN
IPC: G06V40/16 , G06V10/10 , H04N23/667 , H04N23/611 , H04N23/65
CPC classification number: G06V40/166 , G06V10/17 , H04N23/667 , H04N23/611 , H04N23/651
Abstract: A portable electronic device and an operation method are provided. The portable electronic device includes a body, a screen, a camera, an image sensor and a main system. The image sensor continually captures a first image outside the body with a first resolution and a first power consumption. The camera is turned on in the first state of the portable electronic device by the main system to capture a second image outside the body with a second power consumption and a second resolution only when the face image information appeared for over two seconds on the screen is detected by the image sensor from the first image. The second resolution is higher than the first resolution, and the second power consumption is higher than the first power consumption.
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公开(公告)号：US20230282023A1
公开(公告)日：2023-09-07
申请号：US18196250
申请日：2023-05-11
Applicant: PixArt Imaging Inc.
Inventor： NING SHYU , SHIH-FENG CHEN , HAN-LIN CHIANG , YEN-MIN CHANG , GUO-ZHEN WANG
IPC: G06V40/16 , G01J5/02 , A61B5/01 , A61B5/00 , G06V40/20 , G06V40/40 , G06V10/143 , G06V10/74 , G06F21/32 , G06V10/80 , G01J5/00 , G06V40/10 , G06F18/22 , G06F18/25
CPC classification number: G06V40/161 , G01J5/026 , A61B5/01 , A61B5/0008 , A61B5/742 , A61B5/746 , G06V40/20 , G06V40/28 , G06V40/168 , G06V40/172 , G06V40/45 , G06V10/143 , G06V10/761 , G06F21/32 , G06V10/803 , G01J5/0025 , G06V40/113 , G06F18/22 , G06F18/251 , G06V40/16 , G06V40/117 , G01J2005/0077
Abstract: There is provided an electronic device capable of improving the difficulty of breaking a digital electronic lock and the accuracy of gesture control. The electronic device is unlocked according to gestures of a single hand or two hands, an operation hand, a gesture position, a staying time of gesture and a gesture variation of a user. The electronic device further improves the accuracy of gesture control in conjunction with an accessory pattern, temperature sensing and space information of a wearable device. The present disclosure further provides an electronic device that identifies legitimacy of moving the electronic device according to a variation sequence of 3-axis accelerations of an accelerometer.
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