[M4IF Technotes] Common ways to evaluate encoded video quality?

[Robert Bleidt]

Are you saying they were influenced by parameters of the video that your 
panel didn't weight as highly, or was it not a double-blind test - they 
were influenced by brand equity, control interface, etc.
One problem I have had in the past is that it is difficult to conduct a 
double-blind test with any of the proprietary formats as displayed on a PC, 
as there is no easy way to "record" their reconstructed output. Some PC 
video cards do have a down-converted video output that can feed a VCR, but 
usually these outputs add artifacts of their own. We need something like 
www.totalrecorder.com for true motion video. I have ended up sometimes 
putting a cardboard mask over the screen to reveal just the video window.
Has anyone solved this problem?
At 09:41 AM 6/24/2003 -0700, Howard Stateman wrote:
>Even though it was clear to the experts that my company's video was sharper,
>more color-accurate and had fewer artifacts in high-motion frames, the
>non-experts (a.k.a. potential customers) liked the competion's video better.
>We discovered the huge role which psychology has to play in percieved
>quality of streaming media.

Robert Bleidt   - rbleidt   hdtv.com