公开(公告)号：US08396263B2

公开(公告)日：2013-03-12

申请号：US12346158

申请日：2008-12-30

申请人： Jiangwei Li ,  Kongqiao Wang ,  Lei Xu

发明人： Jiangwei Li ,  Kongqiao Wang ,  Lei Xu

IPC分类号： G06K9/00

CPC分类号： G06K9/00228 ,  G06K9/6257 ,  G06T7/77 ,  G06T2207/20076 ,  G06T2207/30201

摘要： A method for providing face pose estimation for face detection may include utilizing a selected portion of classifiers in detectors to determine coarse pose information for a candidate face in an image, determining fine pose information for the candidate face based at least in part on the determined coarse pose information, and employing another portion of the classifiers in the detectors to perform face detection based at least in part on the fine pose information to determine whether the candidate face corresponds to a face. An apparatus and computer program product corresponding to the method are also provided.

摘要翻译： 一种用于提供面部检测的面部姿态估计的方法可以包括利用检测器中的分类器的选定部分来确定图像中的候选面部的粗略姿态信息，至少部分地基于所确定的粗糙度来确定候选面部的精细姿态信息 姿态信息，并且在检测器中使用分类器的另一部分，至少部分地基于精细姿态信息来执行面部检测，以确定候选面部是否对应于脸部。 还提供了一种与该方法对应的装置和计算机程序产品。

公开(公告)号：US09922241B2

公开(公告)日：2018-03-20

申请号：US14361372

申请日：2011-12-01

申请人： Jiangwei Li ,  Kongqiao Wang ,  Lei Xu

发明人： Jiangwei Li ,  Kongqiao Wang ,  Lei Xu

IPC分类号： G06K9/00 ,  G06K9/46

CPC分类号： G06K9/00355 ,  G06K9/46 ,  G06K9/4642 ,  G06K9/4671 ,  G06K2009/4666

摘要： The invention concerns a gesture recognition method for gesture-based interaction at an apparatus. The method comprises receiving one or more images of an object; creating feature images for the received one or more images; determining binary values for pixels in corresponding locations of said feature images and concatenating the binary values to form a binary string for said pixel; repeating the previous step for each corresponding pixel of said feature image to form a feature map and forming a histogram representation of the feature map. The invention also concerns an apparatus and a computer program.

公开(公告)号：US09251409B2

公开(公告)日：2016-02-02

申请号：US14351000

申请日：2011-10-18

申请人： Jiangwei Li ,  Kongqiao Wang ,  Lei Xu ,  Yikai Fang

发明人： Jiangwei Li ,  Kongqiao Wang ,  Lei Xu ,  Yikai Fang

IPC分类号： G06K9/00 ,  G06K9/38 ,  G06K9/72 ,  G06T7/00 ,  G06T7/20

CPC分类号： G06K9/00355 ,  G06K9/38 ,  G06K9/72 ,  G06T7/136 ,  G06T7/194 ,  G06T7/246 ,  G06T7/73 ,  G06T2207/10016 ,  G06T2207/20081

摘要： Methods, apparatuses, and computer program products are herein provided for enabling hand gesture recognition using an example infrared (IR) enabled mobile terminal. One example method may include determining a hand region in at least one captured frame using an adaptive omnidirectional edge operator (AOEO). The method may further include determining a threshold for hand region extraction using a recursive binarization scheme. The method may also include determining a hand location using the determined threshold for the extracted hand region in the at least one captured frame. The method may also include determining a fingertip location based on the determined hand location. Similar and related example apparatuses and example computer program products are also provided.

摘要翻译： 本文提供了方法，装置和计算机程序产品，以使用启用示例红外（IR）功能的移动终端来实现手势识别。 一个示例性方法可以包括使用自适应全向边缘算子（AOEO）来确定至少一个捕获帧中的手区域。 该方法还可以包括使用递归二值化方案来确定手区域提取的阈值。 该方法还可以包括使用所确定的在至少一个拍摄帧中提取的手区域的阈值来确定手位置。 该方法还可以包括基于所确定的手位置来确定指尖位置。 还提供了类似和相关的示例设备和示例性计算机程序产品。

公开(公告)号：US09196055B2

公开(公告)日：2015-11-24

申请号：US13996751

申请日：2010-12-31

申请人： Kongqiao Wang ,  Lei Xu ,  Jiangwei Li ,  Yingfei Liu

发明人： Kongqiao Wang ,  Lei Xu ,  Jiangwei Li ,  Yingfei Liu

IPC分类号： G06T7/20 ,  G06K9/00 ,  G06K9/46

CPC分类号： G06T7/2033 ,  G06K9/00355 ,  G06K9/4642 ,  G06T7/223 ,  G06T2207/10024 ,  G06T2207/20016 ,  G06T2207/20021 ,  G06T2207/20068 ,  G06T2207/30196

摘要： A method for providing a mechanism for gesture recognition may include causing down-sampling of image data received to generate down-sampled image blocks for a plurality of image frames, causing extraction of a plurality of features from the down-sampled image blocks, determining a moving status of the down-sampled image blocks based on changes in values of respective features in consecutive frames, and determining a direction of motion of an object in the image data based on movement of a first border and a second border of a projection histogram determined based on the moving status of respective down-sampled image blocks. A corresponding apparatus and computer program product are also provided.

摘要翻译： 提供用于手势识别的机构的方法可以包括：对接收到的图像数据进行下采样，以生成用于多个图像帧的下采样图像块，从而从下采样图像块中提取多个特征，确定 基于连续帧中的各个特征值的变化，下采样图像块的移动状态，以及基于确定的投影直方图的第一边界和第二边界的移动来确定图像数据中的对象的运动方向 基于各自的下采样图像块的移动状态。 还提供了相应的装置和计算机程序产品。

公开(公告)号：US08144945B2

公开(公告)日：2012-03-27

申请号：US12328375

申请日：2008-12-04

申请人： Kongqiao Wang ,  Jiangwei Li ,  Lei Xu

发明人： Kongqiao Wang ,  Jiangwei Li ,  Lei Xu

IPC分类号： G06K9/48 ,  G06K9/32 ,  G06F21/00 ,  G05B19/00

CPC分类号： G06K9/00248

摘要： A method for providing orientation independent face detection may include generating multiple mosaic images from an input image in which each of the multiple mosaic images has a different scale, employing a plurality of differently oriented edge detectors to perform edge detection on the multiple mosaic images including combining edges of the multiple mosaic images having the different scales, and performing face detection in regions corresponding to the differently oriented edge detectors based on respective feature maps produced by the differently oriented edge detectors. An apparatus and computer program product corresponding to the method are also provided.

摘要翻译： 用于提供取向独立面部检测的方法可以包括从其中每个多个马赛克图像具有不同标度的输入图像生成多个马赛克图像，其中采用多个不同方向的边缘检测器对多个马赛克图像执行边缘检测，包括组合 具有不同尺度的多个马赛克图像的边缘，以及基于由不同定向的边缘检测器产生的各个特征图，在对应于不同定向的边缘检测器的区域中执行面部检测。 还提供了一种与该方法对应的装置和计算机程序产品。

公开(公告)号：US20100296739A1

公开(公告)日：2010-11-25

申请号：US12470520

申请日：2009-05-22

申请人： Jiangwei Li ,  Kongqiao Wang ,  Lei Xu

发明人： Jiangwei Li ,  Kongqiao Wang ,  Lei Xu

IPC分类号： G06K9/46

CPC分类号： G06K9/00281 ,  G06K9/4647 ,  G06K9/468

摘要： Various methods for feature extraction using local primitive code are provided. One example method includes determining an origin block within an image, an arc, an arc orientation, and a distance between the origin block and the arc. In this regard, the origin block may include one or more pixels of the image. The example method also includes determining at least one arc block. In this regard, the arc block may be located on the arc and the arc may be located with respect to the origin block based on the arc orientation and the distance. Some or all of the at least one arc blocks may include one or more pixels of the image. The example method also includes determining at least one feature value based on attributes of the origin block and the at least one arc block. Similar and related example methods and example apparatuses are also provided.

摘要翻译： 提供了使用本地原语代码进行特征提取的各种方法。 一个示例性方法包括确定图像内的原始块，弧，弧定向以及原始块和弧之间的距离。 在这方面，原始块可以包括图像的一个或多个像素。 示例性方法还包括确定至少一个弧块。 在这方面，弧形块可以位于弧形上，并且弧可以相对于原点块基于圆弧取向和距离而定位。 至少一个弧形块的一些或全部可以包括图像的一个或多个像素。 示例性方法还包括基于原始块和至少一个弧块的属性来确定至少一个特征值。 还提供了类似的和相关的示例性方法和示例设备。

公开(公告)号：US20120321176A1

公开(公告)日：2012-12-20

申请号：US13522486

申请日：2010-01-29

申请人： Jiangwei Li ,  Kongqiao Wang ,  Lei Xu

发明人： Jiangwei Li ,  Kongqiao Wang ,  Lei Xu

IPC分类号： G06K9/68

CPC分类号： G06K9/6203 ,  G06K9/00288 ,  G06K9/6214 ,  G06K9/6228 ,  G06K9/6247

摘要： Methods and apparatuses are provided for facilitating object recognition. A method may include accessing data for a first object and data for a second object. The method may additionally include comparing the first and second objects based at least in part upon a reference set and training results generated based at least in part upon the reference set and training data. The method may further include determining whether the first object and the second object are the same object based at least in part upon the comparison. Corresponding apparatuses are also provided.

摘要翻译： 提供了方便和设备来促进对象识别。 方法可以包括访问第一对象的数据和用于第二对象的数据。 该方法可以另外包括至少部分地基于至少部分地基于参考集合和训练数据生成的参考集和训练结果来比较第一和第二对象。 该方法还可以包括至少部分地基于比较来确定第一对象和第二对象是否是相同的对象。 还提供了相应的装置。

公开(公告)号：US20100142768A1

公开(公告)日：2010-06-10

申请号：US12328375

申请日：2008-12-04

申请人： Kongqiao Wang ,  Jiangwei Li ,  Lei Xu

发明人： Kongqiao Wang ,  Jiangwei Li ,  Lei Xu

IPC分类号： G06K9/00

CPC分类号： G06K9/00248

摘要： A method for providing orientation independent face detection may include generating multiple mosaic images from an input image in which each of the multiple mosaic images has a different scale, employing a plurality of differently oriented edge detectors to perform edge detection on the multiple mosaic images including combining edges of the multiple mosaic images having the different scales, and performing face detection in regions corresponding to the differently oriented edge detectors based on respective feature maps produced by the differently oriented edge detectors. An apparatus and computer program product corresponding to the method are also provided.

摘要翻译： 用于提供取向独立面部检测的方法可以包括从其中每个多个马赛克图像具有不同标度的输入图像生成多个马赛克图像，其中采用多个不同方向的边缘检测器对多个马赛克图像执行边缘检测，包括组合 具有不同尺度的多个马赛克图像的边缘，以及基于由不同定向的边缘检测器产生的各个特征图，在对应于不同定向的边缘检测器的区域中执行面部检测。 还提供了一种与该方法对应的装置和计算机程序产品。

公开(公告)号：US20130188836A1

公开(公告)日：2013-07-25

申请号：US13877775

申请日：2010-10-18

申请人： Yikai Fang ,  Lei Xu ,  Kongqiao Wang

发明人： Yikai Fang ,  Lei Xu ,  Kongqiao Wang

IPC分类号： G06K9/00

CPC分类号： G06K9/00335 ,  G06K9/00355 ,  G06K9/00375 ,  G06K9/3233 ,  G06K2009/4666

摘要： A method for providing hand detection may include receiving feature transformed image data for a series of image frames, determining asymmetric difference data indicative of differences between feature transformed image data of a plurality of frames of the series of image frames and a reference frame, and determining a target area based on an intersection of the asymmetric difference data. An apparatus and computer program product corresponding to the method are also provided.

摘要翻译： 用于提供手检测的方法可以包括：接收用于一系列图像帧的特征变换图像数据，确定指示所述一系列图像帧的多个帧的特征变换图像数据与参考帧之间的差异的不对称差异数据，以及确定 基于非对称差分数据的交点的目标区域。 还提供了一种与该方法对应的装置和计算机程序产品。

公开(公告)号：US08965051B2

公开(公告)日：2015-02-24

申请号：US13877775

申请日：2010-10-18

申请人： Yikai Fang ,  Lei Xu ,  Kongqiao Wang

发明人： Yikai Fang ,  Lei Xu ,  Kongqiao Wang

IPC分类号： G06K9/00

CPC分类号： G06K9/00335 ,  G06K9/00355 ,  G06K9/00375 ,  G06K9/3233 ,  G06K2009/4666

摘要： A method for providing hand detection may include receiving feature transformed image data for a series of image frames, determining asymmetric difference data indicative of differences between feature transformed image data of a plurality of frames of the series of image frames and a reference frame, and determining a target area based on an intersection of the asymmetric difference data. An apparatus and computer program product corresponding to the method are also provided.

摘要翻译： 用于提供手检测的方法可以包括：接收用于一系列图像帧的特征变换图像数据，确定指示所述一系列图像帧的多个帧的特征变换图像数据与参考帧之间的差异的不对称差异数据，以及确定 基于非对称差分数据的交点的目标区域。 还提供了一种与该方法对应的装置和计算机程序产品。