Matrox MXO2 Installation And User Manual page 53

¦ Note Depending on the input type selected in step 3, some options may not
be available.
SD 4:3 Select this option for standard 4:3 NTSC or PAL video. When
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upscaling to HD, the video is captured in pillarbox format.
SD 16:9
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When upscaling to HD, the video is captured in anamorphic format.
720p Select this option for 720p video.
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Select this option for 1080i or 1080PsF video.
1080
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From the HD to SD aspect ratio menu, select the aspect ratio conversion
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option to be used when capturing to SD from an HD video source:
Letterbox
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adding black bars at the top and bottom of the picture for display on a
standard 4:3 television screen.
Center cut
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standard 4:3 television screen by evenly cropping the left and right edges
of the picture.
Anamorphic
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compressed 4:3 video, which retains the picture's full vertical resolution
for display on a widescreen television. To display the video with the
correct proportions on an NTSC or PAL monitor, select the 16:9 display
setting on the monitor.
If you're capturing 720p at 23.98 fps video from a 720p at 59.94 fps source
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that was originally acquired using a standard 2:3:2:3 pulldown, MXO2
performs a reverse 2:3:2:3 pulldown to reconstruct the original 23.98 fps
video. For MXO2 to do so, you must specify where your capture In point is
relative to the start of the pulldown sequence using the 720p 59.94 to 23.98
offset slider.
¡ Important If capturing 720p at 23.98 VariCam material, you don't need to
specify your capture In point. However, you must select the Enable
VariCam capture
In the following example, the capture In point is at the fourth frame of the
sequence, therefore the frame offset value is 3.
¦ Note
If you're performing an open-ended capture without a specified In
point, you may need to try different offset values before getting the desired
result.
720p at 59.94 fps video frames (2:3:2:3 pulldown)
Offset:
Select this option for widescreen 16:9 NTSC or PAL video.
Captures the widescreen 16:9 picture as letterbox video by
Captures the widescreen 16:9 picture for display on a
Captures the widescreen 16:9 picture as horizontally
option as explained in step 8.
0 1 2 3
Capture In point
4 5 6 7
Defining your MXO2 settings
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8 9