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    Object identification device, object identification method, calculation device, system, and recording medium
    3.
    发明授权
    Object identification device, object identification method, calculation device, system, and recording medium 有权

    公开(公告)号：US11462004B2

    公开(公告)日：2022-10-04

    申请号：US16623641

    申请日：2017-07-07

    申请人： NEC Corporation

    发明人： Kota Iwamoto

    IPC分类号： G06V10/98 ,  G06T7/37 ,  G06K9/62 ,  G06V10/42 ,  G06V20/00

    摘要： Provided is a technology to identify the number of objects to be identified for each packaging unit with a high degree of accuracy. This object identification device comprises: a comparison unit which compares a captured image with an identification image for identifying objects; and a determination means which, if a plurality of objects are identified as being contained within the captured image, determines whether the plurality of identified objects are articles bundled together in accordance with predetermined conditions, based on a first parameter which represents the geometrical relationship between a first position in a first space, and a second position corresponding to the first position in a second space which represents the image space if the plurality of articles represented by the identification image are bundled together, and a second parameter which represents the geometrical relationship between the first position and a third relationship corresponding to the first position.

    Video signature extraction device
    7.
    发明授权
    Video signature extraction device 有权
    视频签名提取设备

    公开(公告)号：US09118889B2

    公开(公告)日：2015-08-25

    申请号：US13676926

    申请日：2012-11-14

    申请人： NEC CORPORATION

    发明人： Ryoma Oami ,  Kota Iwamoto

    IPC分类号： H04N7/12 ,  G06K9/46 ,  H04N19/00 ,  G06F17/30 ,  G06K9/00 ,  G06T7/20 ,  H04N5/14 ,  H04N21/44 ,  H04N21/8352

    CPC分类号： H04N19/00 ,  G06F17/30256 ,  G06F17/30799 ,  G06F17/30811 ,  G06K9/00744 ,  G06K9/46 ,  G06T7/254 ,  G06T2207/10016 ,  H04N5/14 ,  H04N21/44008 ,  H04N21/8352

    摘要： A video signature extraction device includes an each-picture feature extraction unit which extracts a feature of each picture, which is a frame or a field, as an each-picture visual feature from an input video; a time axial direction change region extraction unit which analyzes an image change in a time direction with respect to predetermined regions in a picture from the video, obtains a region having a large image change, and generates change region information which is information designating the region; an each-region feature extraction unit which extracts a feature of the region corresponding to the change region information as an each-region visual feature from the video; and a multiplexing unit which multiplexes the each-picture visual feature, the each-region visual feature, and the change region information, and generates a video signature.

    摘要翻译： 视频签名提取装置包括每个图像特征提取单元，其从输入视频中提取作为帧图像或场的每个图像的特征作为每个图像视觉特征; 时间轴向变化区域提取单元，其从视频分析相对于图像中的预定区域的时间方向上的图像变化，获得具有大图像变化的区域，并且生成作为指定该区域的信息的变化区域信息; 每个区域特征提取单元，从视频中提取与变化区域信息相对应的区域的特征作为每个区域视觉特征; 以及复用单元，其对各图像视觉特征，每个区域视觉特征以及变化区域信息进行复用，并生成视频签名。

    FEATURE DESCRIPTOR ENCODING APPARATUS, FEATURE DESCRIPTOR ENCODING METHOD, AND PROGRAM
    8.
    发明申请
    FEATURE DESCRIPTOR ENCODING APPARATUS, FEATURE DESCRIPTOR ENCODING METHOD, AND PROGRAM 有权
    特征描述符编码设备，特征描述符编码方法和程序

    公开(公告)号：US20140321765A1

    公开(公告)日：2014-10-30

    申请号：US14359229

    申请日：2012-11-15

    申请人： NEC CORPORATION

    发明人： Kota Iwamoto ,  Ryota Mase

    IPC分类号： G06F17/30 ,  G06K9/46 ,  G06T9/00

    CPC分类号： G06F17/3028 ,  G06F17/30247 ,  G06K9/4642 ,  G06T9/00 ,  H04N19/54

    摘要： An object of the present invention is to reduce the size of encoded feature descriptors. A feature descriptor encoding apparatus includes a feature point detection unit that detects feature points from an image and outputs coordinate values; a local feature descriptor extracting unit that extracts local feature descriptors from local regions centered on the coordinate values of the feature points; a coordinate value scanning unit that converts the coordinate values into index values according to a specific scanning method; a sorting unit that sorts the index values; a difference calculation unit that calculates a differential value between two adjacent index values of the sorted index values and outputs a sequence of differential values; a differential encoding unit that encodes the sequence of the differential values in a sequential permutation; and a local feature descriptor encoding unit that encodes the local feature descriptors of the corresponding feature points in the same permutation as that of the sorted index values.

    摘要翻译： 本发明的目的是减小编码特征描述符的大小。 特征描述符编码装置包括：特征点检测单元，其从图像检测特征点并输出坐标值; 局部特征描述符提取单元，从以特征点的坐标值为中心的局部区域提取局部特征描述符; 坐标值扫描单元，其根据特定的扫描方法将坐标值转换为索引值; 排序单元，对索引值进行排序; 差分计算单元，计算分类索引值的两个相邻索引值之间的差分值，并输出差分值序列; 差分编码单元，其对顺序排列中的差分值的序列进行编码; 以及本地特征描述符编码单元，其以与排序的索引值相同的排列对相应特征点的局部特征描述符进行编码。