Comparison of algorithms for concealing packet losses in the transmission of compressed video

摘要: Information loss in video tends to reduce its visual quality since some glitches or artifacts can be detected by humans. Over the past few years, great efforts have been made packet and visibility videos. Forward error correction (FEC) methods used at encoder prevent loss. Error concealment decoder of lost packets if algorithms failed. One way decrease videos due is tag according their priority levels. A problem with this prioritization method that typically has no information about what kind algorithm uses. This thesis presents experiment we performed order determine extent prediction importance independent decoder. In experiment, four different types were introduced into nine Each lossy version each was then decoded using five methods. Visual Quality Metric rate concealed Results show for type loss, did not differ significantly, thus indicating it possible create a tagging largely