Patent ID: 8023565
Filing Date: 2011-09-20
Classification: H04N

Abstract:
1. A picture processing apparatus comprising: a decoder configured to decode encoded data to generate a decoded picture; a picture memory having a plurality of banks each containing a plurality of pages to which row addresses are assigned, and configured to store the decoded picture; a bank selector configured to divide the decoded picture into a plurality of macro blocks, and to select a page of a different bank as a write location for a macro block adjacent in at least one of either a horizontal direction or a vertical direction; a write controller configured to write pixel data of pixels occupying predetermined lines of a first macro block corresponding to top fields, and pixel data of pixels occupying predetermined lines of a second macro block corresponding to bottom fields in a column address direction of each of the page in an alternating manner if the decoded picture is a field structure, and configured to write, for each macro block, pixel data of pixels occupying lines corresponding to top fields, and pixel data of pixels occupying lines corresponding to bottom fields in a column address direction of each of the page in an alternating manner if the decoded picture is a frame structure; and a read controller configured to read the decoded picture from any page of the plurality of banks, and to carry out switching to a page of another bank in a case in which switching of a read target page occurs, by a similar manner for both structures of the field structure and the frame structure.