SCANNING SCHEME FOR IMAGES STORED IN DYNAMIC RANDOM ACCESS MEMORY

A method of retrieving image information is disclosed in which a reference block is selected which overlies three sections of an image stored in a memory having two banks. Exactly two of the sections of the image are stored in the same bank of the memory. A sequence in which to read the three sections is selected such that the two sections in the same bank are not read consecutively. Each section of the image underlying the reference block is read in the selected sequence to retrieve the image information.