Trying to find an objective ghosting measurement
Posted: Tue Mar 22, 2011 10:42 pm
Continued from this topic : Review of the 23″ Planar SA2311W 3D Vision-ready LCD Monitor
EDIT : updated with values for ghosting in the center.
I wanted to see how one of the worst DDD tests I've ever seen (with the 3D LCD TV Samsung UE46C7700) would fare in this test.
![Image](http://img1.lesnumeriques.com/news/13/13263/Crosstalk-right.jpg)
Samsung UE46C7700 scale : 220 - 0 = 220.
Samsung UE46C7700 ghosting (lower left, upper left) : 144-131=13 (5,08%) - 157-140=17 (6,64%)
Samsung UE46C7700 ghosting (center) : 19-0=19 (7,42%)
Samsung UE46C7700 ghosting with corrected scale : 5,90% (lower) - 7,72% (upper) - 8,63% (center)
Surprisingly it's not as bad as I thought, so I tested the 3D Plasma TV Samsung PS50C7790 displaying the DDD ghosting test with the 3D mode disabled to see what max ghosting could be.
![Image](http://www.abload.de/img/samsungps50c7790ghosti7fgi.jpg)
Samsung PS50C7790 scale : 217 - 2 = 215.
Samsung PS50C7790 ghosting (lower left, upper left) : 130-90=40 (15,62%) - 179-127=52 (20,31%)
Samsung PS50C7790 ghosting (center) : 162-2=160 (62,5%)
Samsung PS50C7790 ghosting with corrected scale : 18,60% (lower) - 24,19% (upper) - 74,42% (center)
As I said, these tests aren't complete yet, I've to come up with something better to be truly able to compare different 3D displays in an objective way. But quite interesting for now still.
EDIT : updated with values for ghosting in the center.
I wanted to see how one of the worst DDD tests I've ever seen (with the 3D LCD TV Samsung UE46C7700) would fare in this test.
![Image](http://img1.lesnumeriques.com/news/13/13263/Crosstalk-right.jpg)
Samsung UE46C7700 scale : 220 - 0 = 220.
Samsung UE46C7700 ghosting (lower left, upper left) : 144-131=13 (5,08%) - 157-140=17 (6,64%)
Samsung UE46C7700 ghosting (center) : 19-0=19 (7,42%)
Samsung UE46C7700 ghosting with corrected scale : 5,90% (lower) - 7,72% (upper) - 8,63% (center)
Surprisingly it's not as bad as I thought, so I tested the 3D Plasma TV Samsung PS50C7790 displaying the DDD ghosting test with the 3D mode disabled to see what max ghosting could be.
![Image](http://www.abload.de/img/samsungps50c7790ghosti7fgi.jpg)
Samsung PS50C7790 scale : 217 - 2 = 215.
Samsung PS50C7790 ghosting (lower left, upper left) : 130-90=40 (15,62%) - 179-127=52 (20,31%)
Samsung PS50C7790 ghosting (center) : 162-2=160 (62,5%)
Samsung PS50C7790 ghosting with corrected scale : 18,60% (lower) - 24,19% (upper) - 74,42% (center)
As I said, these tests aren't complete yet, I've to come up with something better to be truly able to compare different 3D displays in an objective way. But quite interesting for now still.