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    • 83. 发明授权
    • Systems and methods for tracking human hands by performing parts based template matching using images from multiple viewpoints
    • 通过使用来自多个视点的图像执行基于零件的模板匹配来跟踪人手的系统和方法
    • US08934675B2
    • 2015-01-13
    • US13899536
    • 2013-05-21
    • Aquifi, Inc.
    • Carlo Dal MuttoBritta HummelMichele StoppaGiridhar MuraliTeresa MaoGiuliano Pasqualotto
    • G06K9/00G06K9/32G06F21/32
    • G06K9/00355G06F21/32G06K9/00375
    • Systems and methods for tracking human hands by performing parts based template matching using images captured from multiple viewpoints are described. One embodiment of the invention includes a processor, a reference camera, an alternate view camera, and memory containing: a hand tracking application; and a plurality of edge feature templates that are rotated and scaled versions of a finger template that includes an edge features template. In addition, the hand tracking application configures the processor to: detect at least one candidate finger in a reference frame, where each candidate finger is a grouping of pixels identified by searching the reference frame for a grouping of pixels that have image gradient orientations that match one of the plurality of edge feature templates; and verify the correct detection of a candidate finger in the reference frame by locating a grouping of pixels in an alternate view frame that correspond to the candidate finger.
    • 描述通过使用从多个视点捕获的图像执行基于零件的模板匹配来跟踪人手的系统和方法。 本发明的一个实施例包括处理器,参考相机,备用视图相机和存储器,其包含:手跟踪应用; 以及包括边缘特征模板的手指模板的旋转和缩放版本的多个边缘特征模板。 另外,手跟踪应用将处理器配置为:在参考帧中检测至少一个候选手指,其中每个候选手指是通过搜索参考帧而识别的像素分组,所述像素分组具有匹配的图像梯度取向 多个边缘特征模板之一; 并且通过将对应于候选手指的替代视图帧中的像素分组进行定位来验证参考帧中候选手指的正确检测。
    • 89. 发明授权
    • Systems and methods for tracking human hands using parts based template matching within bounded regions
    • 使用基于部分的模板匹配在有界区域内跟踪人手的系统和方法
    • US08830312B2
    • 2014-09-09
    • US13942655
    • 2013-07-15
    • Imimtek, Inc.
    • Britta HummelGiridhar Murali
    • G06K9/62G06K9/00
    • G06K9/00355G06F3/011G06F3/017G06F3/0304G06K9/00375G06K9/6202
    • Systems and methods for tracking human hands using parts based template matching within bounded regions are described. One embodiment of the invention includes a processor; an image capture system configured to capture multiple images of a scene; and memory containing a plurality of templates that are rotated and scaled versions of a finger template. A hand tracking application configures the processor to: obtain a reference frame of video data and an alternate frame of video data from the image capture system; identify corresponding pixels within the reference and alternate frames of video data; identify at least one bounded region within the reference frame of video data containing pixels having corresponding pixels in the alternate frame of video data satisfying a predetermined criterion; and detect at least one candidate finger within the at least one bounded region in the reference frame of video data.
    • 描述了在有限区域内使用基于部分的模板匹配来跟踪人手的系统和方法。 本发明的一个实施例包括处理器; 被配置为捕获场景的多个图像的图像拍摄系统; 以及包含手指模板的旋转和缩放版本的多个模板的存储器。 手跟踪应用将处理器配置为:从图像捕获系统获得视频数据的参考帧和视频数据的替代帧; 识别视频数据的参考和交替帧内的相应像素; 识别包含满足预定标准的视频数据的交替帧中具有对应像素的像素的视频数据的参考帧内的至少一个有界区域; 并且检测视频数据的参考帧中的至少一个有界区域内的至少一个候选手指。