USE OF FRAME CACHING FOR IMPROVING PACKET LOSS RECOVERY USING PERIODIC AND SYNCHRONIZED FRAME CACHING IN AN ENCODING AND A CORRESPONDING DECODER

摘要

PURPOSE: The use of frame caching for improving packet loss recovery is provided to inform packet loss of an encoder generating a frame based on one of shared frames stored in both an encoder and a decoder when the loss of a packet is detected through the decoder.;CONSTITUTION: A part of a video signal transmitted through a network is allocated to a packet(402). An encoder encodes a part or some of the packet using a frame(404). Frames can be composed of reference frames like an I (Intra)-frame and a P(Predictive-coded)-frame. The reference frame can be cashed in the encoder(406). The cashed frame is transmitted to the decoder(408). The frame of the decoder is cashed in a decoder cache(410). The cashed frame can be used for decompressing a following dependent frame(412).;COPYRIGHT KIPO 2013;[Reference numerals] (402) Allocation of some signals to a packet; (404) Encoding of the packet to a frame; (406) Frame cashing in an encoder; (408) Transmission of the frame to a decoder; (410) Frame cashing in an decoder; (412) Decoding the frame depending on the cashed frame; (AA) P-frame; (BB) I-frame