Canon Kabushiki Kaisha

Shiori Wakino

Masami Kato

Tsewei Chen

Akihiko Yushiya

Koichi Morishita

Shigeru Nishikawa

Takeshi Hiraoka

Akemi Kikuchi

Mitsuhiro Inagaki

An information processing apparatus comprises: an arithmetic unit configured to perform arithmetic operation processing using a hierarchical network; a storage unit configured to store input data inputted to the arithmetic unit and output data outputted from the arithmetic unit; a transmission unit configured to transmit to the arithmetic unit the input data stored in the storage unit; a reception unit configured to receive and store in the storage unit the output data from the arithmetic unit; and a control unit configured to, in a case where the input data cannot be transmitted from the storage unit to the arithmetic unit, control supply of an operation clock to the transmission unit based on network information that indicates a structure of the hierarchical network.

Information processing apparatus and control method thereof

There is provided with a processing apparatus. A data holder holds at least some of data of a plurality of channels in a target layer among a plurality of layers. Each of a plurality of processors performs, in parallel, a product-sum operation using the data of one channel of the target layer and a coefficient corresponding to the target layer. A selector selects whether to perform first processing or second processing on the basis of information specifying processing in the target layer. The first processing includes inputting the data of one channel of the target layer into one of the plurality of processors. The second processing includes inputting the data of one channel of the target layer to the plurality of processors in parallel.

Processing apparatus for performing processing using a convolutional neural network

A data processing apparatus configured to execute hierarchical calculation processing corresponding to a neural network on input data includes a storage unit configured to store a plurality of sets of control data each for use for one of a plurality of processing units into which the hierarchical calculation processing corresponding to the neural network is divided, a transfer unit configured to sequentially transfer the plurality of sets of control data from the storage unit, and a calculation processing unit configured to perform calculation processing of the processing unit corresponding to one set of control data transferred by the transfer unit using the one set of control data.

Data processing apparatus configured to execute hierarchical calculation processing and method thereof

An apparatus for, by inputting data to a hierarchical neural network and performing operation processing in each layer of the network, calculating a feature plane in the layer, comprises an operation unit, a feature plane holding unit including at least one memory that holds a feature plane to be processed, a unit configured to control to arrange the feature plane in the memory based on network information as information about each layer undergoing the operation processing and to manage reading/writing from/in the memory, and a processor configured to access, via a bus, the feature plane holding unit which is address-mapped in a memory space. The processor calculates, based on the network information, an address address-mapped in the memory space, reads out the feature plane, and processes the feature plane.

Operation processing apparatus that calculates addresses of feature planes in layers of a neutral network and operation processing method

An apparatus for calculating feature planes by hierarchically performing filter operation processing for input image data, comprises an operation unit configured to perform a convolution operation, a holding unit including memories configured to store image data and an operation result of the operation unit, a unit configured to receive the operation result, and write, out of the operation result, data of successive lines of the same feature plane in different memories of the memories and write data at the same coordinates of feature planes in the same layer in different memories of the memories, and a unit configured to read out the data of the successive lines from the different memories, read out the data at the same coordinates of the different feature planes in the same layer, and transmit the data to the operation unit.

Operation processing apparatus that executes hierarchical calculation, operation processing method, and non-transitory computer-readable storage medium

An image processing apparatus includes a dividing unit configured to divide an image into a plurality of regions based on an attribute of a pixel, the image having an image coordinate system set therein; a converting unit configured to set a region coordinate system for each of the regions obtained by the dividing unit and to convert coordinate values of a pixel in the image on the image coordinate system into coordinate values on the region coordinate system set for a region to which the pixel belongs; and a calculating unit configured to calculate a feature amount of the region by using the converted coordinate values.

Apparatus and method for dividing image into regions

A bus system comprises a plurality of bus modules each for performing data transfer between a master module and a slave module. A power control module controls transition to a power-saving mode of each bus module based on communication with the plurality of bus modules. The power control module comprises a plurality of control modules corresponding to the plurality of bus modules respectively. Each control module performs communication with the corresponding bus module using power control signals.

Information processing apparatus, data transfer apparatus, and control method for data transfer apparatus

An input data controlling unit preferentially outputs pixel data of an area label for which the operation result is held in a cache. In regard to pixel data of an area label for which the operation result is not held, the input data controlling unit once accumulates the plurality of pixel data in an internal FIFO and then outputs the accumulated pixel data in a lump, to suppress occurrence of a cache miss in the cache. Besides, when accumulating the pixel data in the FIFO, the input data controlling unit reduces a frequency that the area label is changed, by accumulating the pixel data in the FIFO until the FIFO comes to be full of pixel data as much as possible, thereby further suppressing the cache miss.

Data processing apparatus and method of processing a plurality of input data based on respective attribute information thereof

A data transferring apparatus includes a receiving unit configured to receive, from a plurality of bus masters, a data transfer request including attribute information indicating a data transfer type and an address and a sending unit configured to determine, based on information included in the data transfer request, whether the data transfer request is a target to be compressed and to, based in the determination, transfer the data transfer request with or without the attribute information and address.

Data transferring apparatus and data transferring method

A hash value calculation apparatus, which calculates a hash value of a message, includes: an input unit adapted to input an extended block obtained from a message to be processed; a hash value calculation unit adapted to execute a hash value calculation of the input block and to output a hash intermediate value; a plurality of intermediate value storage units adapted to store the hash intermediate value output by the hash value calculation unit for the message to be processed; an output unit adapted to output a hash intermediate value associated with all blocks of the message to be processed as a hash value of the message; and a hash value calculation control unit adapted to control hash value calculations for a plurality of messages by switching the intermediate value storage units used to store the hash intermediate value output from the hash value calculation unit.

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Tokyo, Japan

Shiori Wakino