Abstract: In a process for signal data processing, in particular digital signal data processing, a first memory (M1) of comparatively large memory capacity for recording digital data of an original image is provided, whereby the original image comprises at least a first image part and a second image part and the first image part is defined by first input digital data, whereas the second image part is structured substantially homogeneously. A second memory (C1) of comparatively small memory capacity is also provided. To modify at least one pixel of the original image in a further image (R) at least a part of the first input digital data from the first memory (M1) is transferred to the second memory and from the part of the first initial digital data stored in the second memory (C1) first initial digital data are calculated, from which the new image (R) is generated. To replace first digital data, not stored in the second memory (C1), data are generated according to at least one error concealment process.

Abstract: The invention relates to a method and an arrangement for signal processing, in particular image signal processing, whereby, in particular for scanning values of input and/or output values, polynomials are calculated and, starting from input co-ordinates (x, y), co-ordinate transformations are carried out to give transformed co-ordinates (F OUT). According to the invention, the calculation of a polynomial is achieved by successive multiplication of a first partial polynomial and the second partial polynomial is not used on calculating the polynomial. The arrangement comprises processing units (PE) which can be configured, and with which the first partial polynomials are calculated.