Hybrid metrics

Our hybrid metrics are built upon our No Reference metrics. In addition, the hybrid metrics extract several information from the bitstream. The most useful information is the location of the badly reconstructed blocks (due to corrupted video packets in the bitstream).

These hybrid metrics are specially interesting when measuring the impact of transmission errors on perceived video quality.

For each codec, the corresponding metric measures the distortions generated by the encoding:

• Hybrid metric for MPEG-2 video: measurement of blockiness visibility, blur perception and detection of error blocks (badly reconstructed).
• Hybrid metric for H.264 video: measurement of objects sharpness, blur perception and detection of error blocks (badly reconstructed).