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    DEVICE FOR AND METHOD OF DETERMINING CLUSTERS
    1.
    发明申请
    DEVICE FOR AND METHOD OF DETERMINING CLUSTERS 审中-公开

    公开(公告)号：US20190044533A1

    公开(公告)日：2019-02-07

    申请号：US16076347

    申请日：2017-02-08

    申请人： KONINKLIJKE PHILIPS N.V.

    发明人： INGRID CHRISTINA MARIA FLINSENBERG ,  MARC AOUN

    IPC分类号： H03M7/30 ,  G06F17/30 ,  H03M7/40 ,  G06F17/18

    CPC分类号： H03M7/3071 ,  G06F16/285 ,  G06F17/18 ,  H03M7/3059 ,  H03M7/4012

    摘要： A device (100) for and method of determining clusters of sequences of instances of a first type of data for compacting a data set comprising sequences of instances of the first type of data is provided. Also a method of compacting a data set, a method of transmitting compacted data and a computer program product are provided. In a sequence clustering unit (110) of the device, sequences of a first set of data are clustered on basis of conditional probabilities. Each unique sequence of the first set of data is associated with one or more conditional probabilities that an instance of the second set of data has a specific value given the unique sequence. In the clustering a significant part of the mutual information between the first set of data and the second set of data is maintained.

    Sample array coding for low-delay
    3.
    发明授权
    Sample array coding for low-delay 有权
    低延迟采样阵列编码

    公开(公告)号：US09596469B2

    公开(公告)日：2017-03-14

    申请号：US14141374

    申请日：2013-12-26

    申请人： GE Video Compression, LLC

    发明人： Valeri George ,  Anastasia Henkel ,  Heiner Kirchhoffer ,  Detlev Marpe ,  Thomas Schierl

    IPC分类号： H04N11/02 ,  H04N19/91 ,  H04N19/503 ,  H04N19/13 ,  H04N19/436 ,  H03M7/40 ,  H03M7/30

    CPC分类号： H04N19/44 ,  H03M7/3071 ,  H03M7/4037 ,  H04N19/13 ,  H04N19/167 ,  H04N19/174 ,  H04N19/436 ,  H04N19/503 ,  H04N19/51 ,  H04N19/91

    摘要： The entropy coding of a current part of a predetermined entropy slice is based on, not only, the respective probability estimations of the predetermined entropy slice as adapted using the previously coded part of the predetermined entropy slice, but also probability estimations as used in the entropy coding of a spatially neighboring, in entropy slice order preceding entropy slice at a neighboring part thereof. Thereby, the probability estimations used in entropy coding are adapted to the actual symbol statistics more closely, thereby lowering the coding efficiency decrease normally caused by lower-delay concepts. Temporal interrelationships are exploited additionally or alternatively.

    摘要翻译： 预定熵片的当前部分的熵编码不仅基于使用预定熵片的先前编码部分进行适应的预定熵片的各自的概率估计，而且还基于在熵中使用的概率估计 在相邻部分处于熵切片之前的熵片序列中的空间相邻的编码。 由此，在熵编码中使用的概率估计更适合于实际符号统计，从而降低通常由较低延迟概念引起的编码效率降低。 时间相互关系被额外地或替代地利用。

    METHOD OF DATA COMPRESSION PREPROCESSING TAILORED TO DATA OF MEASUREMENTS OF ELECTRO-CORTICOGRAPHIC SIGNALS (ECoG) AND SYSTEM FOR ACQUIRING AND TRANSMITTING ECoG DATA
    7.
    发明申请
    METHOD OF DATA COMPRESSION PREPROCESSING TAILORED TO DATA OF MEASUREMENTS OF ELECTRO-CORTICOGRAPHIC SIGNALS (ECoG) AND SYSTEM FOR ACQUIRING AND TRANSMITTING ECoG DATA 审中-公开
    数据压缩预处理方法用于电化学信号测量数据（ECoG）和用于获取和发送生态数据的系统

    公开(公告)号：US20160174863A1

    公开(公告)日：2016-06-23

    申请号：US14971960

    申请日：2015-12-16

    申请人： COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES

    发明人： Michael FOERSTER ,  David DEHAENE

    IPC分类号： A61B5/04 ,  A61B5/00 ,  A61B5/0478

    CPC分类号： A61B5/04012 ,  A61B5/0006 ,  A61B5/0478 ,  H03M7/3068 ,  H03M7/3071 ,  H03M7/3079

    摘要： A method of compression preprocessing of raw data ui(tN) of measurements of electrocorticographic signals (ECoG) evolving over time with the aid of electrodes disposed in direct contact with a cortex comprises an actual step of compression preprocessing in which each raw signal ui(tN) acquired by the observed electrode i is transformed into a preprocessed signal εi (tN) equal to the difference between a first term and a second term and appropriate for a second entropy encoding step. The first term is equal to the raw signal acquired at the electrode i at the current instant tN, and the second term is a prediction function fi which depends on past raw signals observed in a near past at at least neighbour electrodes σi(j) of the observed electrode or at most at neighbour electrodes σi(j) of the observed electrode i and at the observed electrode.

    摘要翻译： 借助于与皮质直接接触的电极协同进行随时间变化的电皮质信号（ECoG）测量的原始数据ui（tN）的压缩预处理方法包括压缩预处理的实际步骤，其中每个原始信号ui（tN ）被转换成等于第一项和第二项之间的差的预处理信号，其适用于第二熵编码步骤。 第一项等于在当前时刻t N在电极i处获取的原始信号，第二项是依赖于在至少相邻电极和近似电极i（j）处观察到的过去原始信号的预测函数fi ）或最多在观察到的电极i的相邻电极i（j）和观察到的电极上。

    BINARIZATION OF DQP USING SEPARATE ABSOLUTE VALUE AND SIGN (SAVS) IN CABAC
    8.
    发明申请
    BINARIZATION OF DQP USING SEPARATE ABSOLUTE VALUE AND SIGN (SAVS) IN CABAC 审中-公开
    在CABAC中使用分离绝对值和符号（SAVS）的DQP的二值化

    公开(公告)号：US20160065963A1

    公开(公告)日：2016-03-03

    申请号：US14795102

    申请日：2015-07-09

    申请人： Sony Corporation

    发明人： Jun Xu

    IPC分类号： H04N19/124 ,  H04N19/50 ,  H04N19/61 ,  H04N19/184 ,  H03M7/40 ,  H03M7/30

    CPC分类号： H04N19/124 ,  H03M7/3071 ,  H03M7/4018 ,  H03M7/6088 ,  H04N19/176 ,  H04N19/184 ,  H04N19/50 ,  H04N19/61 ,  H04N19/70 ,  H04N19/91

    摘要： Video coding systems or apparatus utilizing context-based adaptive binary arithmetic coding (CABAC) during encoding and/or decoding, are configured according to the invention with an enhanced binarization of non-zero Delta-QP (dQP). During binarization the value of dQP and the sign are separately encoded using unary coding and then combined into a binary string which also contains the dQP non-zero flag. This invention capitalizes on the statistical symmetry of positive and negative values of dQP and results in saving bits and thus a higher coding efficiency.

    摘要翻译： 根据本发明，使用非零Delta-QP（dQP）的增强二值化来配置在编码和/或解码期间利用基于上下文的自适应二进制算术编码（CABAC）的视频编码系统或装置。 在二进制化期间，dQP和符号的值使用一元编码分别编码，然后组合成二进制字符串，该二进制字符串也包含dQP非零标志。 本发明利用了dQP的正值和负值的统计对称性，从而节省了比特数，从而提高了编码效率。

    COMPRESSION DEVICE, COMPRESSION METHOD, DECOMPRESSION DEVICE, DECOMPRESSION METHOD, INFORMATION PROCESSING SYSTEM, AND RECORDING MEDIUM
    9.
    发明申请
    COMPRESSION DEVICE, COMPRESSION METHOD, DECOMPRESSION DEVICE, DECOMPRESSION METHOD, INFORMATION PROCESSING SYSTEM, AND RECORDING MEDIUM 有权
    压缩装置，压缩方法，分解装置，分解方法，信息处理系统和记录介质

    公开(公告)号：US20160006454A1

    公开(公告)日：2016-01-07

    申请号：US14857553

    申请日：2015-09-17

    申请人： FUJITSU LIMITED

    发明人： Masahiro KATAOKA ,  Masanori SAKAI ,  Takafumi OHTA

    IPC分类号： H03M7/30

    CPC分类号： H03M7/30 ,  G06F17/2252 ,  G06F17/30153 ,  H03M7/3071 ,  H03M7/3088 ,  H03M7/705

    摘要： A compression device includes a processor configured to execute a process. The process includes: storing, in a storage, a first compressed code in association with a first element, the first compressed code corresponding to a combination of a first element and a first delimiter, the first element being one of a plurality of elements constituting input data, the first delimiter being one of delimiters delimiting the plurality of elements and succeeding the first element in the input data; acquiring, from the storage, the first compressed code in response to reading a sequence of the first element and the first delimiter from the input data; and writing the first compressed code into a storage area that stores therein compressed data of the input data.

    摘要翻译： 压缩装置包括被配置为执行处理的处理器。 该过程包括：在存储器中存储与第一元素相关联的第一压缩代码，第一压缩代码对应于第一元素和第一分隔符的组合，第一元素是构成输入的多个元素之一 数据，所述第一分隔符是界定所述多个元素并在所述输入数据中的所述第一元素之后的分隔符之一; 响应于从输入数据读取第一元素和第一分隔符的序列，从存储器获取第一压缩代码; 以及将第一压缩码写入存储输入数据的压缩数据的存储区域。

    METHODS, DEVICES AND SYSTEMS FOR DATA COMPRESSION AND DECOMPRESSION
    10.
    发明申请
    METHODS, DEVICES AND SYSTEMS FOR DATA COMPRESSION AND DECOMPRESSION 审中-公开

    公开(公告)号：US20180143770A1

    公开(公告)日：2018-05-24

    申请号：US15575072

    申请日：2016-05-20

    申请人： Zeropoint Technologies AB

    发明人： Angelos Arelakis ,  Per Stenström

    IPC分类号： G06F3/06 ,  H03M7/30

    CPC分类号： G06F3/0608 ,  H03M7/30 ,  H03M7/3071 ,  H03M7/3079 ,  H03M7/6088

    摘要： Methods, devices and systems enhance compression and decompression of data values when they comprise a plurality of semantically meaningful data fields. According to a first inventive concept of the present invention disclosure, compression is not applied to each data value as a whole, but instead to at least one of the semantically meaningful data fields of each data value, and in isolation from the other ones. A second inventive concept organizes the data fields that share the same semantic meaning together to accelerate compression and decompression as multiple compressors and decompressors can be used in parallel. A third inventive concept is a system where methods and devices are tailored to perform compression and decompression of the semantically meaningful data fields of floating-point numbers after first partitioning further at least one of said data fields into two or a plurality of sub-fields to increase the degree of value locality and improve compressibility of floating-point values.