Video quality can be measured with formal metrics like PSNR or with subjective video quality using professional observation.
The subjective video quality of a video processing method is evaluated as follows:
Select the video sequences (the SRC) to make use of for testing.
Select the settings of the method to assess (the HRC).
Select a check method for how to present video sequences to specialists & to collect their ratings.
Invite a sufficient number of specialists, preferably not fewer than 15.
Carryover out testing.
Calculate the average marks for each HRC based on the experts' ratings.
Plenty of subjective video quality methods are described in the ITU-T recommendation BT.500. of the standardized method is the Double Stimulus Impairment Scale (DSIS). In DSIS, each professional views an unimpaired reference video followed by an weakened version of the same video. The professional then rates the weakened video using a scale ranging from "impairments are imperceptible" to "impairments are annoying".
The subjective video quality of a video processing method is evaluated as follows:
Select the video sequences (the SRC) to make use of for testing.
Select the settings of the method to assess (the HRC).
Select a check method for how to present video sequences to specialists & to collect their ratings.
Invite a sufficient number of specialists, preferably not fewer than 15.
Carryover out testing.
Calculate the average marks for each HRC based on the experts' ratings.
Plenty of subjective video quality methods are described in the ITU-T recommendation BT.500. of the standardized method is the Double Stimulus Impairment Scale (DSIS). In DSIS, each professional views an unimpaired reference video followed by an weakened version of the same video. The professional then rates the weakened video using a scale ranging from "impairments are imperceptible" to "impairments are annoying".
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