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Subject Here's a tip for you that nobody else will probably mention:
     
Posted by Marshall on June 02, 2003 at 8:55 PM
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In Reply To SZR: What DV Cams do you guys use? Need some input... posted by SeedyROM on June 02, 2003 at 08:11 PM
     
Message I have a Sony TRV27. It's pretty good, has good resolution compared to many of the other single chip models out there.

But there's always a catch:

Camcorders are normally made for viewing on a TV set, which is 60 fields per second, interlaced. So it only shoots every OTHER line at a time. On a TV this doesn't matter, since the TV is also interlaced it looks great. But when you upload the video to a PC, the video will suddenly look jagged since your monitor does not display video in the same way. Your monitor is NON- interlaced, and the interlaced video from the camera will make the picture look like this on your screen:

[ http://solutions.intergraph.com/hardware/vas/demo/8.asp ]

Now you can de-interlace the video for watching it on the PC, but what you are doing is stripping out every other horizontal line and replacing it with a duplicate of the previous line to give you a non-jagged image. The problem with this is that you are throwing away half the horizontal resolution on the video.

The solution is to find a camcorder that supports a "progressive scan" mode which means that it can shoot and record the video in a non-interlaced format. This way you'll get a smooth picture when viewing it on the PC, and you will not lose any resolution by having to deinterlace it.

Sony's comsumer cameras do not support progressive scan mode. I think some of Canon's do. Maybe JVC also.

     
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