Patent ID: 8660181

Claim:
A method of compressing video data with no loss of frame image quality on the displayed frames, by varying the frame rate relative to the original source video, the method comprising the steps of: receiving at least two chunks of uncompressed video data, each chunk comprising at least two sequential video frames and, compressing at least one frame in each chunk as a key frame, for reconstruction without the need for data from any other frames, compressing at least one intermediate frame as a delta frame between a nearest preceding key frame and a nearest subsequent key frame from data contained in either or each of the nearest preceding and subsequent frames, wherein further intermediate frames are compressed as further delta frames within the same chunk, by treating any previously compressed delta frame as a key frame for constructing said further delta frames, and storing the compressed video frames at various mutually exclusive temporal resolutions, which are accessed in a pre-defined order, in use, starting with key frames, and followed by each successive granularity of delta frames, stopping at any point; and whereby the frame rate is progressively increased as more intermediate data is accessed.