Patent ID: 8559798

Claim:
An image frame processing device comprising: an interface unit for acquiring a condition that an image frame should meet for output to a display, wherein the condition is an output resolution defined depending on whether contents of images displayed on the display comprise a still image or moving images; a rendering processing unit for performing rendering at a predetermined frame rate independent of said condition to generate an image frame sequence based on given geometry data; a postprocessing unit for performing a predetermined process on the image frame sequence generated by said rendering processing unit, in accordance with said condition acquired by said interface unit, to generate an updated image frame sequence for the display; a first memory storing the image frame generated by said rendering processing unit; and a second memory used by said postprocessing unit as a work area, wherein said rendering processing unit starts rendering a set of image frames in the image frame sequence with mutually different offsets of coordinates in a rendering space, and wherein said postprocessing unit locates the set of image frames generated by the offset rendering in a single coordinate system and samples pixels in the coordinate system to generate an updated image frame sequence with a higher resolution and a lower frame rate than those of the image frame sequence output from said rendering processing unit, and wherein said first memory has a capacity for storing at least one image frame generated by said rendering processing unit, the image frame temporarily stored in said first memory is transferred to said second memory, and said postprocessing unit reads out a plurality of image frames for the predetermined process from said second memory.