Canon Kabushiki Kaisha

Ryoko Natori

Shinji Shiraga

Hisashi Ishikawa

There are provided a data processing apparatus which makes an I/F for data processing modules (processors) versatile to facilitate addition/modification on a data processing module basis in accordance with processing contents, an image processing apparatus, and a method for the apparatuses. A data processing module () includes a read address generator (), read FIFO (), write address generator (), write FIFO (), and arbiter () and is connected to a host arbiter () through a 1-channel port. The read address generator () and write address generator () generate interrupts upon acceptance of final access requests so as to control activation of each data processing module (---m) in accordance with the state of each data processing module in interrupt processing. Note that data transfer among the respective data processing modules is performed on a RAM ().

Data processing apparatus, image processing apparatus, and method therefor

A data processing apparatus includes a connecting unit that distributes the plurality of processing modules over the stages, and connects the plurality of processing modules such that a plurality of partial data are processed in parallel. The data processing apparatus detects, with respect to at least a part of the stages, a ratio of an amount of data for which processing in the subsequent stage has been executed, as a passage rate, acquires a processing time for a data amount to be processed in each stage, for which the passage rate was detected, based on the passage rate, and determines the number of processing modules distributed to each stage based on the data amount.

Data processing apparatus and data processing method

A data processing apparatus that executes determining processing, using a plurality of stages, for determining whether or not a partial image sequentially extracted from an image of each frame of a moving image corresponds to a specific pattern, assigns a plurality of discriminators to each stage such that a plurality of partial images are processed in parallel. The data processing apparatus divides an image into a plurality of regions, and, for the image of each region, calculates a passage rate or accumulated passage rate from a ratio between the number of partial images input to a stage and the number of partial images determined to correspond to the specific pattern. The assignment of the discriminators to each stage is changed based on the passage rate or accumulated passage rate of the image processed immediately of a region to which the partial image extracted from the image being processed belongs.

Data processing apparatus and control method thereof

An information processing apparatus performs verification processing between an input image and a parameter while referring to the parameter having data to identify an object in the input image. The information processing apparatus includes a calculation unit adapted to perform verification processing to identify the object from the input image by referring to a fixed parameter or variable parameter in one of the series-connected processing step group and one processing step group out of the plurality of processing step groups, a determination unit adapted to determine, based on the calculation result of the calculation unit, whether the calculation unit executes the verification processing next in the series-connected processing step group or one processing step group out of the plurality of processing step groups connected via the branches, and a selection unit adapted to select the fixed parameter or variable parameter.

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Yokohama, Japan

Ryoko Natori