Sony DVP-NS999ES - Manual (Page 10)

ES Series DVD-Video/CD/SA-CD Players; Version 3.0 Page 10
there's a big difference in contrast between the areas they separate. Rooflines,
car hoods, venetian blinds and other lines in the scene can appear with
unwanted stair steps not in the original program. Sony's Vertical Edge
Compensation controls this artifact.
Sony's Vertical Edge Compensation uses a broad range of pixels on the
lines immediately above and below to calculate a pixel on moving edges.
This controls the jaggedness that can sometimes distort edges in the
video picture.
Vertical Edge Compensation uses the built-in motion detection to judge
motion at the pixel level and to detect edges. When the circuit detects an edge, it
refers to other edges within the field. The circuit then assembles data from a
broad range of pixels on the lines immediately above and below to calculate the
new pixel. This smoothes out the stair steps and results in consistent, natural-
looking lines throughout the picture. It's just one more way that Sony raises the
standard in DVD-Video picture quality.
14-bit D/A Converter (DVP-NS99ES)
12-bit D/A Converter (DVP-NC555ES, CX777ES)
The binary word length used in video digital-to-analog (D/A) conversion
helps determine the gray scale performance of the picture. This can be seen, for
example, in the play of light across the face of an actress, as the light of a candle
falls off into shadow. Longer word lengths contribute to smoother, more realistic
transitions from dark to light.
Starting with the DVP-S7000, Sony led the way with 10-bit video digital-to-
analog conversion. The DVP-NS900V raised the performance to 12-bit
conversion, producing four times the grayscale levels—performance now also
achieved by the DVP-NC555ES and CX777ES. The DVP-NS999ES
incorporates the Analog Devices ADV7304A, a 14-bit video D/A converter. This
produces yet again four times the grayscale levels—a total of 16 times as many
as earlier, 10-bit designs.
Pixels on the line above
Pixels on the line below
Pixel being created