International Business Machines Corporation

Masahiko Kitagawa

Hiroki Nakano

Akira Yanagawa

Yoshinobu Fukushima

An apparatus and a method for correcting image data detected by an image sensor with less used memory space and fewer arithmetic operation executions is provided for. A data correcting apparatus of the present invention comprises an operation memory for storing expansion coefficient array data and basis function array data, which includes data of expansion coefficients and function values of a basis function for orthogonally expanding a high order polynomial for correcting input image data; and an operation part for correcting the input image data using the expansion coefficient array data and the basis function array data. With the use of the apparatus, the processing time of the operation part can also be minimized.

Method and apparatus for image data correction

An image processing system comprises a plurality of memories to which image data is input, a control circuit for selecting areas for image processing from the image data input to the memories, and a plurality of DSPs connected to the memories and performing image processing of the selected image data selected by the control circuit. The present invention provides a an image processing system and method where selected image data including overlap areas can be sent from memories to DSPs by entering the same image data into a plurality of memories, without requiring transfers of overlap areas between DSPs, such that the image processing speed is improved.

Image processing system and method

An input image processing apparatus includes a FIFO memory (FIFO-S) in which region selection information for specifying a selected region in an input image frame, in order to consecutively store in an image memory pixel data within a selected region in an arbitrary shape defined on the image frame. The FIFO memory provides a signal for indicating write of pixel data included in the selected region into the image memory, based on the region selection information.

Method and apparatus of image processing while inputting image data

Provided are an image processing method employing pattern matching, whereby the number of calculations for a normalized correlation factor can be reduced and processing speed can be increased in a pattern matching process, and an image processing system therefor. In the pattern matching processing when an insensitive region is set in a template image, values (the sum and the squared sum) obtained during a previous operation for a prior search target sub-image are employed to perform calculations for a current search target sub-image, relative to coordinate sequence code that indicates the start point and the end point of a sequence of pixels having values of '1.'

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Kusatsu, Japan

Masahiko Kitagawa