HQV (Test 6)

Test 6: Noise Reduction

From the HQV manual:

In the NTSC analog video system, noise can be created or inadvertently added to a program through capture, duplication and editing. This noise is especially evident when large areas of solid colors are present. Two problematic color shades are saturated blues, saturated reds, and shades of either color. Even digital video programs can suffer from noise, whether present in the actual content or introduced as a result of digital compression.

For this test, the scenes presented have been duplicated numerous times to introduce noise. A quality video processor will apply multiple axes of noise reduction to minimize these artifacts.

Turn on any noise reduction controls on the device under test to the nominal setting (‘Medium’ or ‘On’). High quality noise reduction processing will minimize solid color noise while preserving image detail. You may need to turn the controls on and off to see the effect.

ATI Radeon X1900 All-in-Wonder Video Card Review - Graphics Cards  1

ATI Radeon X1900 All-in-Wonder Video Card Review - Graphics Cards  2

ATI Screenshot; Score: 10

ATI Radeon X1900 All-in-Wonder Video Card Review - Graphics Cards  3

NVIDIA Screenshot; Score: 5

You can easily see in these screenshots, just a I did while watching the video side by side, that the NVIDIA noise reduction is of much lower quality than that of the ATI Avivo implementation.

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