BobDiaz
The Professor
There was an accidental flaw in my first presentation of the green screen shots for the different resolutions. The zoomed image was always around 8 pixels per inch on my monitor. This made the higher resolutions look more fuzzy, when in truth, the higher resolutions were less fuzzy.
In order to give a true picture of what it's like, assume we have a 270 inch (22.5 feet) projected image of the different resolutions. If your monitor is 15" viewable, this is how big the pixels would appear on a 270 inch display. In the case of DVCPRO50, it is 4:3, so the vertical is filled, but the sides of our 270" image are blank.
In the DVCPRO50 image, the pixels are massive, because the resolution is so low. No surprise the transition area between the green screen and the hand is also large; there's not enough detail (pixels) in the image to help resolve this transition.
The 720p image shows an improvement in the transition area with more pixels per inch. The edge is cleaner in 720 than the DVCPRO50, because we have more pixels to help form the edge.
Last of all is the 1080 image. As you can see the edge is even sharper than the DVCPRO50 and the 720 images. Again, no surprise, higher resolution results in better detail.
There is a weakness in this test. I am using three DIFFERENT shots taken from three DIFFERENT setups. To be accurate, I would need to take all three shots from the exact same setup. I wish I could provide that, but I don't have those images to show. For now, I am using images taken by other people.
Still, even with this built in weakness, I can safely say that if your image must be blown up to show on the big screen, the highest resolution is your best choice. BUT what if your final output is SD or 720? Should you still shoot in the higher resolution, edit and then bump down to the lower resolution? In theory, the results should be better, but I don't have any images where I can show you any difference. Still, it would make for another interesting test...
Bob Diaz
In order to give a true picture of what it's like, assume we have a 270 inch (22.5 feet) projected image of the different resolutions. If your monitor is 15" viewable, this is how big the pixels would appear on a 270 inch display. In the case of DVCPRO50, it is 4:3, so the vertical is filled, but the sides of our 270" image are blank.
In the DVCPRO50 image, the pixels are massive, because the resolution is so low. No surprise the transition area between the green screen and the hand is also large; there's not enough detail (pixels) in the image to help resolve this transition.
The 720p image shows an improvement in the transition area with more pixels per inch. The edge is cleaner in 720 than the DVCPRO50, because we have more pixels to help form the edge.
Last of all is the 1080 image. As you can see the edge is even sharper than the DVCPRO50 and the 720 images. Again, no surprise, higher resolution results in better detail.
There is a weakness in this test. I am using three DIFFERENT shots taken from three DIFFERENT setups. To be accurate, I would need to take all three shots from the exact same setup. I wish I could provide that, but I don't have those images to show. For now, I am using images taken by other people.
Still, even with this built in weakness, I can safely say that if your image must be blown up to show on the big screen, the highest resolution is your best choice. BUT what if your final output is SD or 720? Should you still shoot in the higher resolution, edit and then bump down to the lower resolution? In theory, the results should be better, but I don't have any images where I can show you any difference. Still, it would make for another interesting test...
Bob Diaz
