A computer-readable medium having stored thereon an image decoding program which, when executed by a computer, performs: storing a reference image which is a previously decoded image; receiving coded information including motion vector information and rounding method information specifying a rounding...http://www.google.de/patents/US7801378?utm_source=gb-gplus-sharePatent US7801378 - Recording medium having recorded thereon coded information using plus and/or minus rounding of images
