Method and apparatus for producing an information stream having still images
AssigneeDIVA Systems Corporation
InventorDonald F. Gordon
Life of this patent
Estimating the term…
Abstract
A method and apparatus for processing an image to produce an encoded video information stream comprising a sequence of replicated group of picture (GOP) information structures, each GOP including an intra-coded frame (I-frame) and a plurality of forward predictive coded frames (P-frames), wherein the I-frame of the initial GOP is formed by intra-coding the still image. Optionally, the encoded video information stream is multiplexed with an encoded audio information stream to produce a system stream suitable for use in an MPEG-like information processing system.
Claims21
A method for processing an image to produce a compressed information stream, said method comprising the steps of:
- intra-coding said image to produce an intra-coded information frame (I-frame);
- associating said intra-coded information frame with a plurality of forward predicted information frames (P-frames) to form a group of pictures (GOP);
- and
- replicating said GOP to produce said compressed information stream.
A method for generating an information stream for providing, on a presentation device, a relatively motionless image, said method comprising the steps of:
- encoding, using a preferential bit allocation determined with respect to a group of pictures (GOP) bit budget, an image to produce an intra-frame (I-frame) encoded video information frame;
- associating said intra-frame encoded video information frame with a plurality of substantially zero motion vector forward predicted (P-frame) information frames;
- and
- replicating at least one of said substantially zero motion vector P-frames to form said information stream.
Apparatus for processing an image to produce an MPEG-like information stream, comprising:
- a frame encoder, for producing an intra-coded (I-frame) in response to said image, and for producing N number of forward predicted information frames (P-frames) in response to said I-frame, where N is an integer;
- a memory, for storing said I-frame and said N number of P-frames;
- and
- a controller, for causing said memory to repetitively output said I-frame and said N number of P-frames as a video elementary stream.
Dependencies are inferred from the claim text.