How to upscale a video?

I see from the web site below that this is a complex process, with no guarantee that it will improve your viewing pleasure significantly;
http://hometheater.about.com/od/hometheatervideobasics/qt/dvdvidupscale.htm

Another link, http://www.hometoys.com/news_detail.php?section=view&id=15006671 .

Mark

well some softwares use a sort of upsampling technology to upscale video. Typically viewing something in fullscreen is just interpolating pixels, and it appears blurry and grey. Rendering a video in HD in an editor like Sony Vegas does not really upsample the video, even though interpolation does make it look slightly better.

An example of upscaling software would be "Super Resolution plugin" from "VideoEnhancer," or plugins for After Effects, Premiere Pro and Final Cut like Topaz Enhance or Magic Bullet Instant HD. Some of these are quite expensive. Cyberlink PowerDirector is a consumer-level video editor that offers video upscaling as well, although as it also adjusts colour tones, it may oversaturate and over reduce noise, although it still looks pretty good. Most upscalers increase contrast and saturation because of the sharpening of pixels. I use Cyberlink, although it may crash on some computers not to mention extreme lag when rendering, and from what I heard Customer Service is not very good.

While upscaling may increase overall quality it always depends on your source. It will not really show you something that is actually hidden in the picture because it basically making up pixels and sharpening them.