ADS Technologies ELT-201 - Manual (Page 9)

INSTANT DVD 2.0 Page 24
INSTANT DVD 2.0 Page 25
Video Preprocessing Filters
Instant DVD includes video preprocessing filters which provide the ability to remove some of the noise found on old
video tapes, TV reception or other noisy video sources.
Spatial Filtering
This refers to filtering pixel data that are all located in the same video frame. The Spatial filter is a low-pass filter.
This filter removes part of the high frequency noise components. Too much filtering can reduce image sharpness to
the point of looking very smooth or blurry. The selection range for this filter is from 0 to 7.
Temporal Filter
This filter processes pixel data that are located in the same pixel coordinates but across two frames of video, usually
the current video frame and the previous frame. Because of motion in video sequences, and object located in one
position may have moved in the next video frame. Thus, if there is a log of motion, temporal filtering may cause
blurring or introduce other artifacts. The selection range for this filter is from 0 to 255.
What is the best filter to use for your video? There is no magic formula, you will need to experiment with different filter
settings and pick the filter level that removes noise but does not create blur.
Use Deinterlacing (Preview/Playback)
The MPEG-2 software playback codec that we use does not de-interlace video by default. Interlaced video will show
horizontal lines when you preview or playback the video. This interlacing does not affect video quality. All NTSC and
PAL video is interlaced. You will not see the interlacing when playing back a DVD disk on TV.
De-interlacing the video during preview and playback makes the video quality look better on the computer screen.
The default capture settings have de-interlacing turned on by default. De-interlacing the video takes a bit more CPU
processing power. Some slower PC’s may experience jerky video. In the custom settings, you have the ability to
enable or disable de-interlacing. Experiment with your system and your personal preferences to determine if you
want to preview with de-interlacing enabled or disabled.
Setting Custom Capture Settings
1.) Click Custom Settings button
2.) When the custom settings dialog box opens, make your selections.
3.) Click OK to save
4.) Click “Use Custom Format” to capture with the settings selected.
• Brightness/Color
Here you can make changes to Brightness, Chroma, Contrast, Hue and Saturation.
You can make changes to the Brightness/Color settings only while Previewing or recording video.
1. Move the slider for each setting choice and you will see the adjustment over the next second or two.
2. If you mess up, Click Reset to restore factory default settings.
3. Click OK to close the box.
• Optional Controls (for Instant DVD + DV Only) *
This dialog box is for use with and enhanced version of Instant DVD called, “Instant DVD + DV”. The
Instant DVD + DV version allows you to connect a digital camcorder and provides the ability to capture from
Digital Video directly to MPEG-1 or MPEG-2. These controls allow you to control the camcorder via software
so you have the ability to Rewind, Fast Forward, Play and Stop the camcorder via these controls.