Abstract: Error concealment for video with a scene change detection based on inter-coded macroblock energy, spatial concealment for scene changes, and temporal concealment with predicted motion vectors as the global motion vector of the prior frame when half of the current frame macroblocks are corrupted.

Abstract: A method of video decoding discards a context dependent number of bits following detection of an invalid symbol. In the preferred embodiment the number of discarded bits depends upon the product of a constant corresponding to the video encoding standard and the current slice type and the maximum of the average number of bits per macroblock of the current slice and a stored average number of bits per macroblock of a previous slice of the same coding type.

Abstract: A decoder provided according to an aspect of the present invention determines a type of each network abstraction layer (NAL) unit, and discards a NAL unit when the size of the NAL unit is inconsistent with the size according to the determined type. According to another aspect, a decoder corrects for errors in the non-pay load portions and uses the corrected non-pay load portions to recover the original data contained in the payload portions of the data stream. In an embodiment, various global parameters (which are applicable to the data stream unless changed further in the data stream) and the values in the slice headers are examined to correct the parameters in the slice headers. According to one more aspect, an end of frame is reliably detected by using an expected number of macro-blocks in a frame and a set of logical conditions of slice header parameters.

Abstract: A decoder provided according to an aspect of the present invention determines a type of each network abstraction layer (NAL) unit, and discards a NAL unit when the size of the NAL unit is inconsistent with the size according to the determined type. According to another aspect, a decoder corrects for errors in the non-pay load portions and uses the corrected non-pay load portions to recover the original data contained in the payload portions of the data stream. In an embodiment, various global parameters (which are applicable to the data stream unless changed further in the data stream) and the values in the slice headers are examined to correct the parameters in the slice headers. According to one more aspect, an end of frame is reliably detected by using an expected number of macro-blocks in a frame and a set of logical conditions of slice header parameters.

Abstract: A method of video decoding discards a context dependent number of bits following detection of an invalid symbol. In the preferred embodiment the number of discarded bits depends upon the product of a constant corresponding to the video encoding standard and the current slice type and the maximum of the average number of bits per macroblock of the current slice and a stored average number of bits per macroblock of a previous slice of the same coding type.

Abstract: Error concealment for video with a scene change detection based on inter-coded macroblock energy, spatial concealment for scene changes, and temporal concealment with predicted motion vectors as the global motion vector of the prior frame when half of the current frame macroblocks are corrupted.