Method and apparatus for training voiceprint recognition system

    公开(公告)号:US10854207B2

    公开(公告)日:2020-12-01

    申请号:US16231913

    申请日:2018-12-24

    Abstract: A method and an apparatus for training a voiceprint recognition system are provided. The method includes obtaining a voice training data set comprising voice segments of users; determining identity vectors of all the voice segments; identifying identity vectors of voice segments of a same user in the determined identity vectors; placing the recognized identity vectors of the same user in the users into one of user categories; and determining an identity vector in the user category as a first identity vector. The method further includes normalizing the first identity vector by using a normalization matrix, a first value being a sum of similarity degrees between the first identity vector in the corresponding category and other identity vectors in the corresponding category; training the normalization matrix, and outputting a training value of the normalization matrix when the normalization matrix maximizes a sum of first values of all the user categories.

    Human face recognition method and recognition system based on lip movement information and voice information

    公开(公告)号:US10650259B2

    公开(公告)日:2020-05-12

    申请号:US15644043

    申请日:2017-07-07

    Abstract: The embodiment of the present invention provides a human face recognition method and recognition system. The method includes that: a human face recognition request is acquired, and a statement is randomly generated according to the human face recognition request; audio data and video data returned by a user in response to the statement are acquired; corresponding voice information is acquired according to the audio data; corresponding lip movement information is acquired according to the video data; and when the lip movement information and the voice information satisfy a preset rule, the human face recognition request is permitted. By performing fit goodness matching between the lip movement information and voice information in a video for dynamic human face recognition, an attack by human face recognition with a real photo may be effectively avoided, and higher security is achieved.

    Face model matrix training method and apparatus, and storage medium

    公开(公告)号:US10599913B2

    公开(公告)日:2020-03-24

    申请号:US16509091

    申请日:2019-07-11

    Abstract: Face model matrix training method, apparatus, and storage medium are provided. The method includes: obtaining a face image library, the face image library including k groups of face images, and each group of face images including at least one face image of at least one person, k>2, and k being an integer; separately parsing each group of the k groups of face images, and calculating a first matrix and a second matrix according to parsing results, the first matrix being an intra-group covariance matrix of facial features of each group of face images, and the second matrix being an inter-group covariance matrix of facial features of the k groups of face images; and training face model matrices according to the first matrix and the second matrix.

    Face key point positioning method and terminal

    公开(公告)号:US10068128B2

    公开(公告)日:2018-09-04

    申请号:US15438371

    申请日:2017-02-21

    Abstract: The present disclosure pertains to the field of image processing technologies and discloses a face key point positioning method and a terminal. The method includes: obtaining a face image; recognizing a face frame in the face image; determining positions of n key points of a target face in the face frame according to the face frame and a first positioning algorithm; performing screening to select, from candidate faces, a similar face whose positions of corresponding key points match the positions of the n key points of the target face; and determining positions of m key points of the similar face selected through screening according to a second positioning algorithm, m being a positive integer. In this way, the problem that positions of key points obtained by a terminal have relatively great deviations in the related technologies is resolved, thereby achieving an effect of improving accuracy of positioned positions of the key points.

    Graphic rendering engine and method for implementing graphic rendering engine
    7.
    发明授权
    Graphic rendering engine and method for implementing graphic rendering engine 有权
    图形渲染引擎和实现图形渲染引擎的方法

    公开(公告)号:US09129395B2

    公开(公告)日:2015-09-08

    申请号:US14144348

    申请日:2013-12-30

    CPC classification number: G06T1/20 G09G5/006

    Abstract: A method for implementing a graphic rendering engine may be provided. In the method, rendering function information of a first graphic processing interface and a second graphic processing interface may be extracted. The first graphic processing interface and the second graphic processing interface may be encapsulated as a graphic rendering engine interface. Member functions of the graphic rendering engine interface may be defined according to the rendering function information. A rendering function corresponding to the member functions may be implemented by calling the first graphic processing interface or the second graphic processing interface with the graphic rendering engine interface.

    Abstract translation: 可以提供用于实现图形呈现引擎的方法。 在该方法中,可以提取第一图形处理界面和第二图形处理界面的渲染功能信息。 第一图形处理界面和第二图形处理界面可以被封装为图形呈现引擎界面。 可以根据渲染功能信息来定义图形渲染引擎接口的成员功能。 可以通过利用图形呈现引擎接口调用第一图形处理界面或第二图形处理界面来实现与成员函数相对应的呈现功能。

    Image recognition method and apparatus

    公开(公告)号:US10713532B2

    公开(公告)日:2020-07-14

    申请号:US15925028

    申请日:2018-03-19

    Abstract: The present disclosure discloses an image recognition method and apparatus, and belongs to the field of computer technologies. The method includes: extracting a local binary pattern (LBP) feature vector of a target image; calculating a high-dimensional feature vector of the target image according to the LBP feature vector; obtaining a training matrix, the training matrix being a matrix obtained by training images in an image library by using a joint Bayesian algorithm; and recognizing the target image according to the high-dimensional feature vector of the target image and the training matrix. The image recognition method and apparatus according to the present disclosure may combine LBP algorithm with a joint Bayesian algorithm to perform recognition, thereby improving the accuracy of image recognition.

Patent Agency Ranking