Patent ID: 7386178
Filing Date: 2008-06-10
Classification: H04N

Abstract:
1. A method for transforming the dimensions of an image represented by two or more minimum coded units of data arranged in a block-interleaved format, each minimum coded unit corresponding with one 8×8 block of pixel data and including at least two blocks of pixel component data, the method comprising: (a) storing a first minimum coded unit in a first memory, the first memory having a capacity that is sufficient to store two minimum coded units, but which is insufficient to store three minimum coded units; (b) dimensionally transforming the first minimum coded unit after step (a); and (c) storing a second minimum coded unit in the first memory after the step (a), wherein the step (b) is performed before starting to store any third minimum coded unit in the first memory after the step (c); and wherein each block of pixels data is defined by two corner pixels P.sub.X, Y and P.sub.X+N, Y+N, where N is an integer, and X and Y are integers, and wherein the step (b) of dimensionally transforming further comprises: reading the pixel components needed to sequentially reconstruct the pixels P.sub.X, Y to P.sub.X+n, Y, where n is an integer that ranges from zero to N, and thereafter reading the pixel components needed to sequentially reconstruct the pixel P.sub.X. Y+1 to P.sub.X+n; Y+1.