Sunday, January 25, 2015

Interlacing Problems

Generally speaking, interlacing is a very useful technique developed by people with the intention of capturing, storing, transmitting and displaying the interlaced video in the exactly same interlaced format. Its wide application in today’s scienece and technology field proves that interlacing is really very helpful and thus widely accepted by people. As a matter of fact, each interlaced video frame is made up of two fields which are captured at two different times. As a result, the interlaced video frame is likely to exhibit motion artifacts. Those artifacts, known as interlaced effects, or combing, will appear when the recorded object moves fast enough to be in different positions when each individual field is captured. If the interlaced video is displayed at a slower speed than it was captured or displayed in still frames, then these artifacts will be more visible. Therefore, people are supposed to try their best to avoid these motion artifacts in order to get the most satisfactory progressive frames. Only under such circumstance can people enjoy the video of the best quality.

Fortunately, there are some both simple and useful methods which can help users to produce satisfactory progressive frames from the interlaced image. For instance, users can make use of the function of doubling the lines of one field and omitting the other, namely, halving vertical resolution, or anti-aliasing the image in the vertical axis, which will be of great use for them to hide some of the interlaced effects or combing. Sometimes, these methods can help users produce progressive frames of more satisfactory quality. Therefore, users are supposed to make the fullest possible use of these functions to help themselves produce better and more satisfactory progressive frames. With these functions and adjustments, people will have the opportunity to enjoy the video of the best possible quality.