Patent ID: 8295352

Claim:
Process for delivering a video stream over a bidirectional wireless channel between a video encoder and a video decoder, wherein the video frames of the video stream are encoded by defining partitions of the video frames, said encoding being done by determining predictions for the partitions, a prediction being based on: at least one reference area of a reference frame of the video stream; said reference area being selected in order to minimize a cost function J; one motion vector associated to said reference area; and a weighting factor associated to said reference area; wherein the difference between partition and corresponding predicted partition is done by the video encoder in order to establish a partition residual, the encoded video stream with partition residuals are transmitted to the video decoder in order to decode predicted partition of the video stream by using the reference area, the motion vector and weighting factor, decoded partition of the video frame being formed by combination of decoded predicted partition and corresponding partition residual; and wherein a transmission error probability of the decoded partition is fed back from the video decoder to the video encoder, said transmission error probability being used in the cost function of the motion estimation algorithm of the decoded partition (A) in conjunction with selecting the reference area for subsequent encoding of the video stream.