Patent ID: 8599920
Filing Date: 2013-12-03
Classification: H04N

Abstract:
1. An integrated circuit (IC) for video processing, the IC comprising: a processor configured to, upon execution of instructions, (i) reconstruct reference frames from a video bitstream, (ii) store a non-intensity-compensated copy of a reference frame of the video bitstream, and (iii) determine a set of values of properties based at least in part on syntax elements of the video bitstream, wherein the properties comprise even indexed properties to be applied to top reference fields of the reference frame and odd indexed properties to be applied to bottom reference fields of the reference frame, (iv) extract a set of direct/derived parameters of the reference frame from the video bitstream, wherein the direct/derived parameters comprise a field mode parameter to identify whether the reference frame is coded in a field coding mode or a frame coding mode, (v) based at least in part on the set of direct/derived parameters, use a first subset of the set of values of properties to perform a first intensity compensation operation on the reference frame, wherein, depending on the field mode parameter, the first subset of the set of values of the properties comprises one of (1) both the even indexed properties and the odd indexed properties or (2) one of the even indexed properties or the odd indexed properties, (vi) based at least in part on the set of direct/derived parameters, use a second subset of the set of values of properties to perform a second intensity compensation operation on a result of the first intensity compensation operation, (vii) utilize a result of the second intensity compensation operation for defining displayable images and for on-the-fly generating a stream of intensity-compensated pixels used to perform motion compensation calculations for frames of the video bitstream; and a memory containing said instructions.