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公开(公告)号：US10986289B2
公开(公告)日：2021-04-20
申请号：US16641653
申请日：2019-01-08
发明人： Xiaojun Zhou , Li Li , Hang Wang , Zan Sheng , Shuo Li
摘要： Disclosed is a method and device for regulating imaging accuracy of a motion-sensing camera. The method comprises: acquiring an infrared speckle pattern in a target infrared scene; recognizing an actual definition, an actual speckle regularity, and an actual central region brightness of the infrared speckle pattern; comparing the actual definition with a preset definition, the actual speckle regularity with a preset speckle regularity, and the actual central region brightness with a preset brightness; and adjusting an imaging focal length according to a comparison result, and completing regulation of the imaging accuracy. In this way, the method for regulating imaging accuracy of a motion-sensing camera of the present invention can obtain an infrared speckle pattern having required imaging accuracy. Thus, the quality of a depth map formed by conversion from the infrared speckle pattern can be highly improved, which provides a high-quality data source for subsequent skeleton-based recognition and gesture recognition.
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公开(公告)号：US20210006734A1
公开(公告)日：2021-01-07
申请号：US16641653
申请日：2019-01-08
发明人： Xiaojun ZHOU , Li LI , Hang WANG , Zan SHENG , Shuo LI
摘要： Disclosed is a method and device for regulating imaging accuracy of a motion-sensing camera. The method comprises: acquiring an infrared speckle pattern in a target infrared scene; recognizing an actual definition, an actual speckle regularity, and an actual central region brightness of the infrared speckle pattern; comparing the actual definition with a preset definition, the actual speckle regularity with a preset speckle regularity, and the actual central region brightness with a preset brightness; and adjusting an imaging focal length according to a comparison result, and completing regulation of the imaging accuracy. In this way, the method for regulating imaging accuracy of a motion-sensing camera of the present invention can obtain an infrared speckle pattern having required imaging accuracy. Thus, the quality of a depth map formed by conversion from the infrared speckle pattern can be highly improved, which provides a high-quality data source for subsequent skeleton-based recognition and gesture recognition.
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3.发明授权公开(公告)号：US09478039B1
公开(公告)日：2016-10-25
申请号：US15160067
申请日：2016-05-20
CPC分类号： G06T7/0081 , G06T7/11 , G06T7/194 , G06T2207/10028
摘要： The present invention relates to an image background modeling and foreground extraction method based on a depth image, characterized by comprising: step 1: acquiring a depth image representing a distance from objects to a camera; step 2: initiating a real-time depth background model; step 3: updating the real-time depth background model; step 4: acquiring a current depth image representing the distance from the objects to the camera; step 5: extracting a foreground image of the current depth image based on the real-time depth background model; step 6: outputting the foreground image and generating a real-time target masking image; and step 7: updating the real-time depth background model, where code block information of each pixel point in the real-time depth background model is updated according to the real-time target masking image. The present invention has stability, high efficiency, and superiority in processing positional relationships that cannot be matched by a well-known modeling method using a color image, and does not require initially modeling a scene, thereby simplifying implementation steps and greatly improving the whole performance.
摘要翻译： 本发明涉及一种基于深度图像的图像背景建模和前景提取方法，其特征在于包括：步骤1：获取表示从对象到相机的距离的深度图像; 步骤2：启动实时深度背景模型; 步骤3：更新实时深度背景模型; 步骤4：获取表示从对象到相机的距离的当前深度图像; 步骤5：基于实时深度背景模型提取当前深度图像的前景图像; 步骤6：输出前景图像并生成实时目标掩蔽图像; 以及步骤7：更新实时深度背景模型，其中根据实时目标掩蔽图像更新实时深度背景模型中每个像素点的代码块信息。 本发明通过使用彩色图像的众所周知的建模方法来处理位置关系的稳定性，高效率和优越性，并且不需要对场景进行初始建模，从而简化了实施步骤并大大提高了整体性能 。
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公开(公告)号：US10417775B2
公开(公告)日：2019-09-17
申请号：US15674527
申请日：2017-08-11
发明人： Hang Wang , Hao Liu , Zan Sheng , Gaofeng Yang
摘要： The present invention relates to a method for implementing a human skeleton tracking system based on depth data, specifically applied to a human skeleton tracking system based on depth data which is composed of a data acquisition unit, a limb segmentation unit, a skeleton point unit, and a tracking display unit. The units are in a relationship of sequential invocation. The limb segmentation unit uses scene depth data obtained after processing by the data acquisition unit to perform limb segmentation. The skeleton point unit uses the result obtained after segmentation by the limb segmentation unit to compute specific positions of respective skeleton points of a limb. The tracking display unit uses the positions of the skeleton points computed by the skeleton point unit to establish a skeleton model of the human body and perform tracking display.
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公开(公告)号：US10209765B2
公开(公告)日：2019-02-19
申请号：US15394853
申请日：2016-12-30
发明人： Shuo Li , Li Li , Zan Sheng , Gaofeng Yang
摘要： The present invention includes means of using a customized coprocessor to replace a main processor to process or interact with a data processing unit in a complex scene and reducing clock frequencies of the main processor and related modules, thereby achieving low power consumption of the three-dimensional measurement chip. The present invention includes: step 1: determining a system structure of a three-dimensional measurement processing chip; step 2: classifying data processing units according to scene requirements; step 3: adding coprocessors on a system bus; step 4: designing a customized coprocessor or small data control unit; step 5: designing a semi-customized coprocessor or small data control unit; step 6: optimizing software codes and reducing a clock frequency; step 7: verifying the chip to confirm that the chip satisfies design requirements. The present invention is applicable to a plurality of integrated circuits or any internetwork system consisting of a plurality of integrated circuits.
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公开(公告)号：US20180047175A1
公开(公告)日：2018-02-15
申请号：US15674527
申请日：2017-08-11
发明人： Hang WANG , Hao LIU , Zan SHENG , Gaofeng YANG
CPC分类号： G06T7/251 , A61B5/1128 , G06K9/00201 , G06K9/00342 , G06K9/00369 , G06K9/3241 , G06T3/40 , G06T7/11 , G06T7/194 , G06T2207/10024 , G06T2207/10028 , G06T2207/30196 , G06T2210/12
摘要： The present invention relates to a method for implementing a human skeleton tracking system based on depth data, specifically applied to a human skeleton tracking system based on depth data which is composed of a data acquisition unit, a limb segmentation unit, a skeleton point unit, and a tracking display unit. The units are in a relationship of sequential invocation. The limb segmentation unit uses scene depth data obtained after processing by the data acquisition unit to perform limb segmentation. The skeleton point unit uses the result obtained after segmentation by the limb segmentation unit to compute specific positions of respective skeleton points of a limb. The tracking display unit uses the positions of the skeleton points computed by the skeleton point unit to establish a skeleton model of the human body and perform tracking display.
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公开(公告)号：US20170192491A1
公开(公告)日：2017-07-06
申请号：US15394853
申请日：2016-12-30
发明人： Shuo LI , Li LI , Zan SHENG , Gaofeng YANG
CPC分类号： G06F1/3293 , G06F1/08 , G06F1/324 , G06T1/20 , Y02D10/122 , Y02D50/20
摘要： The present invention includes means of using a customized coprocessor to replace a main processor to process or interact with a data processing unit in a complex scene and reducing clock frequencies of the main processor and related modules, thereby achieving low power consumption of the three-dimensional measurement chip. The present invention includes: step 1: determining a system structure of a three-dimensional measurement processing chip; step 2: classifying data processing units according to scene requirements; step 3: adding coprocessors on a system bus; step 4: designing a customized coprocessor or small data control unit; step 5: designing a semi-customized coprocessor or small data control unit; step 6: optimizing software codes and reducing a clock frequency; step 7: verifying the chip to confirm that the chip satisfies design requirements. The present invention is applicable to a plurality of integrated circuits or any internetwork system consisting of a plurality of integrated circuits.
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