Method and an apparatus for the extraction of descriptors from video content, preferably for search and retrieval purpose

    公开(公告)号:US10127454B2

    公开(公告)日:2018-11-13

    申请号:US14414048

    申请日:2013-07-11

    IPC分类号: G06K9/00 G06K9/46

    摘要: A method for extraction of descriptors from video content, includes the following steps: a Key Frame Extracting step, applying a local descriptors-based approach to select pictures of the incoming video as key frames that are representative of a temporal region of the video which is visually homogeneous; a Content Analysis step, analysing the content of the key frames and classifying image patches of the key frames as interesting or not for the extraction of descriptors; a Descriptors Extracting step, extracting compact descriptors from the selected key frames, and defining a set of surrounding images also on the basis of input received from the Content Analysis step; a Temporal Coding step, multiplexing information about the time points at which said key frames have been extracted in the Key Frame Extracting step with the compact descriptors extracted in the Descriptors Extracting step, obtaining the descriptors.

    Method for acquiring audio signals, and audio acquisition system thereof
    6.
    发明授权
    Method for acquiring audio signals, and audio acquisition system thereof 有权
    用于获取音频信号的方法及其音频采集系统

    公开(公告)号:US08965004B2

    公开(公告)日:2015-02-24

    申请号:US13496375

    申请日:2010-09-17

    IPC分类号: H04R3/00 G10L21/0216

    摘要: Method for acquiring audio signals is described, wherein a microphone probe (11) equipped with a plurality (Y) of microphone capsules (B) detects a plurality of audio signals, and wherein said detected audio signals are combined together in order to obtain a virtual microphone signal. The latter is generated as a function of characteristic probe data (IRs) measured during a probe characterization step, wherein the signals detected by each microphone capsule (B) are measured following a corresponding predetermined test signal. An audio acquisition system is also described which allows to implement the method.

    摘要翻译: 描述了用于获取音频信号的方法,其中配备有多个(Y)麦克风胶囊(B)的麦克风探头(11)检测多个音频信号,并且其中所述检测到的音频信号被组合在一起以便获得虚拟 麦克风信号。 根据在探针表征步骤期间测量的特征探测数据(IR)产生后者,其中由相应的预定测试信号测量由每个麦克风胶囊(B)检测的信号。 还描述了允许实现该方法的音频采集系统。

    METHOD FOR ACQUIRING AUDIO SIGNALS, AND AUDIO ACQUISITION SYSTEM THEREOF
    7.
    发明申请
    METHOD FOR ACQUIRING AUDIO SIGNALS, AND AUDIO ACQUISITION SYSTEM THEREOF 有权
    获取音频信号的方法及其音频采集系统

    公开(公告)号:US20120188434A1

    公开(公告)日:2012-07-26

    申请号:US13496375

    申请日:2010-09-17

    IPC分类号: H04N5/225 H04R3/00

    摘要: Method for acquiring audio signals is described, wherein a microphone probe (11) equipped with a plurality (Y) of microphone capsules (B) detects a plurality of audio signals, and wherein said detected audio signals are combined together in order to obtain a virtual microphone signal. The latter is generated as a function of characteristic probe data (IRs) measured during a probe characterization step, wherein the signals detected by each microphone capsule (B) are measured following a corresponding predetermined test signal. An audio acquisition system is also described which allows to implement the method.

    摘要翻译: 描述了用于获取音频信号的方法,其中配备有多个(Y)麦克风胶囊(B)的麦克风探头(11)检测多个音频信号,并且其中所述检测到的音频信号被组合在一起以便获得虚拟 麦克风信号。 根据在探针表征步骤期间测量的特征探测数据(IR)产生后者,其中由相应的预定测试信号测量由每个麦克风胶囊(B)检测的信号。 还描述了允许实现该方法的音频采集系统。