01-25-2008, 10:38 PM
dk62, you don't have it quite right. There are two common technologies used in high end DVD players...progressive conversion and deinterlacing. Progressive conversion is the same thing as deinterlacing. Upconverting has nothing to do with deinterlacing.
Upconverting consists of splitting each pixel recorded on the DVD into multiple pixels, which are assigned color/intensity values based on the upconversion algorithms. You actually can "polish a turd" using upconversion algorithms. This has been done for decades in the image enhancement field using a bunch of different techniques that are very similar to sharpening algorithms used in digital photography. The reason this stuff works is that it is possible to detect patterns in the available pixel colors/intensities (for example linear objects) and then enhance those patterns by manipulating the values of the upconverted pixels. The reason this improves the picture is that you are bringing data into the equation (patterns that are cover larger areas of the picture than a single pixel) that are disregarded when you simply send the raw pixel data to the display device.
Upconverting consists of splitting each pixel recorded on the DVD into multiple pixels, which are assigned color/intensity values based on the upconversion algorithms. You actually can "polish a turd" using upconversion algorithms. This has been done for decades in the image enhancement field using a bunch of different techniques that are very similar to sharpening algorithms used in digital photography. The reason this stuff works is that it is possible to detect patterns in the available pixel colors/intensities (for example linear objects) and then enhance those patterns by manipulating the values of the upconverted pixels. The reason this improves the picture is that you are bringing data into the equation (patterns that are cover larger areas of the picture than a single pixel) that are disregarded when you simply send the raw pixel data to the display device.