Bedienungsanleitung Sony DVP-NS9100ES (Seite 90 von 96) (Englisch)

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Progressive conversion method (page 77)

• Video based software conversion

Video shows an image by alternately

displaying every other line of an image (field)

at 30 frames (60 fields) per second (Interlace

format).

The Interlace format displays 30 frames (60

fields) per second by displaying every other

line of the image, causing scanning lines to

appear across the image. Since only half of

the image is shown at once, the amount of

information contained in an image is limited.

The Progressive format displays 60 entire

frames per seconds. The player accomplishes

this by converting each field into a frame by

using either a field-based conversion method

or a frame-based conversion method. The

appropriate method is automatically selected

by the player according to the movement of

the images on the screen. If the movement on

the screen is slow, the frame-based

conversion method borrows adjacent frame

information to fill in the missing information.

If the movement on the screen is rapid, the

field-based conversion method creates the

missing information by predicting the

movement of the images on the screen from

field to field. The end result is an image that

is higher in quality when compared to the

Interlace format.

• Film based software conversion

Film shows an image by displaying an entire

image at 24 frames per second. When you

watch a film on television, the television

displays every other line of the frame as a

field, thus reducing information level and the

clarity of the film image.

This player solves this problem by increasing

the speed at which the frames are displayed,

consecutively showing 3 identical frames

followed by 2 identical frames in the time that

it normally takes to show 2 consecutive

frames. The end result is that the 24 frames

per second are increased to 60 frames per

second, which is the speed at which

Progressive video signals are shown.

This not only allows film to be shown in a

frame based format, it also increases the

clarity and sharpness which is unique to

Progressive format images.

Progressive format (page 77)

Compared to the Normal (Interlace) format

that alternately shows every other line of an

image (field) to create one frame, the

Progressive format shows the entire image at

once as a single frame. This means that while

the Normal (Interlace) format can show 25 or

30 frames (50-60 fields) in one second, the

Progressive format can show 50-60 frames in

one second. The overall picture quality

increases and still images, text, and horizontal

lines appear sharper. This player is

compatible with the 480 (525) or 576 (625)

progressive format.

Interlace pictures

Converted progressive pictures

Interlace pictures

Converted progressive pictures

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Sony DVP-NS9100ES Seite 90

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