What is upscaling DVD?
UPSCALING DVD is a technique that some DVD players use to make a DVD image as a better quality on a higher -resolution screen. This is most often done on high -resolution television. However, the technique is only a solution and does not create a picture of HD quality. Upscaling solves the fact that a standard DVD player can release images with a maximum resolution of 480 vertical parts of images, but HD TV usually has either 720 or 1080 vertical lines. Although the DVD image will be stretched to fill the screen, it will not use the maximum of the screen capabilities.
Some DVD players have a built -in UPSCALING function. This will convert the signal to send information about "filling" all 720 or 1080 lines. To do this, it artificially creates information for the next lines using the Mathematical series calculations. While the real process is more complicated than this, the general principle is that each added pixel has a color that is most suitable because they surround it.
It should be remembered that LCD or plasma television will provide its own upscaling if necessary. The theory that is behind the overlap of DVDs is that better results are provided by Upscaling on playback itself. This is because there is a possibility that part of the original signal will be lost or subjected to intervention when transmitted to the TV. Although it is usually not remarkable, it will leave TV with less information to work from Upscaling.
The quality of the images produced by the UPSCALING DVD is questionable. Some sources believe it provides a sharper and more detailed picture than standard DVD playback on the same high -resolution screen. Other sources maintain the upscaling process makes a small real difference and can even introduce image errors.
Although it creates images with at least 720 vertical lines, UPSCALING DVD does not represent a high -resolution image. This is reserved for images that have inOriginal source of 720 lines. For DVDs, this is only possible for Blu-ray discs or the now extinct HD-DVD format.
It is also questionable whether standard DVD players with Upscaling are value for money. By 2010, most Blu-ray players have reached a sufficiently low price that the Upscaling function in the DVD player was probably no longer needed as a stopgap measure. Virtually all Blu-ray players have a built-in DVD upscaling.