Process for the processing of digitized signals representing an original image
AssigneeCommissariat a l'Energie Atomique
InventorBernard Chabert
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Abstract
In a process for processing digitized signals representing an original image, the image is defined by scanning lines having a predetermined number of image elements or pixels, each pixel being defined by a predetermined number of bits. The process consists of defining a basic processing module by convolution of pixels of a basic image having N pixels per line. Each pixel is processed in a window of dimensions L.times.P. The process then consists of interconnecting modules identical to the basic module in accordance with a network in which the number of basic modules and their interconnections are dependent on the number of bits defining each pixel of the image to be processed, the number of pixels per line of the image and the dimensions of the chosen processing window.
Claims4
A process for the processing of digitized signals representing an original image defined by scanning lines, each line having a predetermined number of image elements or pixels, each pixel being defined by a predetermined number of bits, comprising the steps of selecting basic modules for the processing by convolution of pixels of a basic image (B), said basic image comprising N pixels per line, each pixel being defined by E bits, each pixel of the basic image being processed in a convolution window defined by its dimensions L.times.P comprising L.times.P weighting coefficients organized in L rows and P columns, said basic module comprising at least one data processing input (2) for receiving the E bits of each pixel of a line of N pixels and at least one output (27) for supplying N processed data corresponding to the processing of each pixel of the basic image, the process then consisting of interconnecting modules identical to the basic module for obtaining the convoluted image of the original image, in accordance with a network in which the number of modules and their interconnections depend on:
- a predetermined number H of bits defining each pixel of the original image, said number H being a multiple of the number E of bits defining each pixel of the basic image, such that H=n.times.E,
- a predetermined number N' of pixels per original image line, said number N' being a multiple of the number N of pixels per line of the basic image, such that N'=q.times.N,
- dimensions L'XP' of a chosen window for processing each pixel of the original image, said dimensions exceeding the dimensions L.times.P of the basic module window.
Dependencies are inferred from the claim text.