A system and method for varying the level of detail encoded in a video. In a preferred embodiment, some regions of a wide-angle video scene are encoded in an almost lossless manner, while other regions are encoded with less detail. Regions of interest can be determined in many ways, including a priori,...http://www.google.com.mx/patents/US7894531?utm_source=gb-gplus-sharePatent US7894531 - Method of compression for wide angle digital video