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    DATA PROCESSING DEVICE, DATA PROCESSING METHOD, AND DATA PROCESSING PROGRAM
    1.
    发明公开
    DATA PROCESSING DEVICE, DATA PROCESSING METHOD, AND DATA PROCESSING PROGRAM 审中-公开

    公开(公告)号：US20240135155A1

    公开(公告)日：2024-04-25

    申请号：US18269528

    申请日：2020-12-28

    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

    Inventor： Saki HATTA ,  Hiroyuki UZAWA ,  Shuhei YOSHIDA ,  Daisuke KOBAYASHI ,  Yuya OMORI ,  Ken NAKAMURA ,  Koyo NITTA

    IPC: G06N3/063

    CPC classification number: G06N3/063

    Abstract: In a data processing device, a fixed-point position control unit determines, as first control. The fixed-point position control unit causes a detection calculation unit to perform calculation processing on processing target data at a processing point in time. The saturation rate control unit instructs, as second control to be repeated by the fixed-point position control unit, the fixed-point position control unit to move at least the fixed-point position as control to increase a lower limit saturation rate proportional to a magnitude of a counted lower limit counter value with respect to a result of the first control. The fixed-point position control unit performs, as the second control, a predetermined determination on the basis of the instruction from the saturation rate control unit and the metadata, determines the fixed-point position moved for each layer, and causes calculation processing to be performed.

    OPERATION CIRCUIT, OPERATION METHOD, AND PROGRAM
    2.
    发明公开
    OPERATION CIRCUIT, OPERATION METHOD, AND PROGRAM 审中-公开

    公开(公告)号：US20240054181A1

    公开(公告)日：2024-02-15

    申请号：US18256005

    申请日：2020-12-09

    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

    Inventor： Yuya OMORI ,  Ken NAKAMURA ,  Daisuke KOBAYASHI ,  Koyo NITTA

    IPC: G06F17/16 ,  G06F7/50

    CPC classification number: G06F17/16 ,  G06F7/50

    Abstract: One aspect of the present invention is an operation circuit for performing a convolution operation of input feature map information supplied as a plurality of channels and coefficient information supplied as a plurality of channels, the operation circuit including a set including at least two channels of an output feature map based on output channels and at least three sub-operation circuits, wherein at least two sub-operation circuits are allocated for each set, the sub-operation circuits included in the set execute processing of a convolution operation of the coefficient information and the input feature map information included in the set, when a specific channel of the output feature map is a zero matrix, a sub-operation circuit that performs a convolution operation of the zero matrix executes processing of a convolution operation of the coefficient information and the input feature map information to be supplied next from a channel of the output feature map and a channel of the input feature map included in the set, and a result of the convolution operation is output for each channel of the output feature map.

    ENCODING METHOD, ENCODING APPARATUS, AND PROGRAM
    5.
    发明申请
    ENCODING METHOD, ENCODING APPARATUS, AND PROGRAM 有权

    公开(公告)号：US20230053579A1

    公开(公告)日：2023-02-23

    申请号：US17796528

    申请日：2020-02-25

    Applicant: Nippon Telegraph and Telephone Corporation

    Inventor： Yuya OMORI ,  Ken NAKAMURA ,  Daisuke KOBAYASHI ,  Hiroe IWASAKI

    IPC: H04N19/137 ,  H04N19/96 ,  H04N19/176

    Abstract: A coding method is a coding method executed by a coding apparatus. The coding method includes partitioning a first block having a predetermined size in an original image into a group of second blocks each being a block serving as a unit for coding, by quad tree, ternary tree, or binary tree, and predicting movement for each of the second blocks. The partitioning includes first sub-partitioning and second sub-partitioning, the first sub-partitioning includes partitioning the first block into blocks each having a size selected from sizes determined according to the quad tree, the ternary tree, or the binary tree, and the second sub-partitioning includes further partitioning the blocks each having the selected size to generate the second blocks.

    ENCODING METHOD, ENCODING APPARATUS AND PROGRAM
    6.
    发明申请
    ENCODING METHOD, ENCODING APPARATUS AND PROGRAM 有权

    公开(公告)号：US20230022215A1

    公开(公告)日：2023-01-26

    申请号：US17783056

    申请日：2019-12-09

    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

    Inventor： Yuya OMORI ,  Ken NAKAMURA ,  Daisuke KOBAYASHI ,  Hiroe IWASAKI

    IPC: H04N19/119 ,  H04N19/176 ,  H04N19/182 ,  H04N19/14

    Abstract: A coding method encodes an image by dividing the image into blocks, and comprises: dividing a coding target image into a plurality of coding unit blocks; determining whether or not to encode by dividing the coding unit block into a plurality of sub-coding unit blocks, on a basis of an edge direction and an edge strength of an edge obtained for each pixel in the coding unit block; and encoding, in a case of determining to divide the coding unit block into a plurality of sub-coding unit blocks in the determining step, a first sub-coding unit block by referencing a second sub-coding unit block inside the same coding unit block as the first sub-coding unit block.

    OBJECT DETECTION DEVICE, OBJECT DETECTION METHOD, AND OBJECT DETECTION PROGRAM
    7.
    发明申请
    OBJECT DETECTION DEVICE, OBJECT DETECTION METHOD, AND OBJECT DETECTION PROGRAM 有权

    公开(公告)号：US20240370694A1

    公开(公告)日：2024-11-07

    申请号：US18561276

    申请日：2021-05-26

    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

    Inventor： Saki HATTA ,  Hiroyuki UZAWA ,  Shuhei YOSHIDA ,  Daisuke KOBAYASHI ,  Yuya OMORI ,  Ken NAKAMURA ,  Koyo NITTA

    IPC: G06N3/04

    Abstract: An object detection device subjects fixed-length data having a decimal point position set therein to an arithmetic processing corresponding to respective layers in a plurality of layers configuring a multilayer neural network to which an input image is input, the arithmetic processing being performed in accordance with a processing algorithm for the multilayer neural network to which an input image is input. In the arithmetic processing, the object detection device counts the upper limit number of saturations, which is a number of times that upper limit value of a value range determined by the decimal point position is exceeded, and the lower limit number of saturations, which is a number of times that the lower limit value of the value range is not reached. The object detection device counts the upper limit number of saturation layers, which is a number of layers in which the upper limit number of saturations is one or larger, and the lower limit number of saturation layers, which is a number of layers in which the lower limit number of saturations is one or larger. The object detection device changes at least one of the upper limit saturation threshold, which is the threshold of the upper limit number of saturations or the lower limit saturation threshold, which is the threshold of the lower limit number of saturations, when at least one of the upper limit saturation threshold or the lower limit saturation threshold is determined not to be optimal based on an amount of change in the upper limit number of saturation layers and an amount of change in the lower limit number of saturation layers. The object detection device sets the decimal point position for each layer in the plurality of layers, based on a result of the determination.

    OBJECT DETECTION DEVICE, METHOD, AND PROGRAM
    9.
    发明公开
    OBJECT DETECTION DEVICE, METHOD, AND PROGRAM 审中-公开

    公开(公告)号：US20240119605A1

    公开(公告)日：2024-04-11

    申请号：US18275786

    申请日：2021-02-09

    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

    Inventor： Ken NAKAMURA ,  Hiroyuki UZAWA ,  Daisuke KOBAYASHI ,  Saki HATTA ,  Yuya OMORI ,  Shuhei YOSHIDA

    IPC: G06T7/215 ,  G06T7/246 ,  G06V10/82 ,  G06V20/40

    CPC classification number: G06T7/215 ,  G06T7/248 ,  G06V10/82 ,  G06V20/46 ,  G06T2207/10016 ,  G06T2207/20084

    Abstract: A calculation unit (22) sets each frame, of a moving image including a plurality of frames, as a target frame, calculates a motion vector with reference to a reference frame over an entirety of the target frames, and calculates an index indicating a magnitude of change between a key frame and the target frame, which is represented by using the motion vector, a judgement unit (25) judges whether or not the calculated index is equal to or greater than a predetermined threshold value, a first detection unit (27) detects a region indicating an object from the target frame by using an object detection model in a case in which the index is equal to greater than the threshold value, a second detection unit (28) detects a region on the target frame, which is obtained by correcting a position of a region detected in the reference frame by using the motion vector in a case in which the index is less than the threshold value, and an output unit (30) outputs information of the region detected by the first detection unit (27) and information of the region detected by the second detection unit (28).

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