Abstract
It is shown that an efficient bandwidth reduction of HDTV (high-definition television) signals can be achieved with separable three-dimensional filters, without compromising motion portrayal. A variety of alternatives for prefiltering at the encoder and postfiltering at the decoder was studied with respect to picture performance and implementation costs. Results are compared on test patterns and related to real HDTV pictures. The basic encoding/decoding scheme of the HDS/NA approach allows for a variety of prefilter and postfilter alternatives to achieve a desired two- or three-dimensional bandwidth reduction. It was shown that prefiltering and postfiltering based on only horizontal and vertical filters gives a good tradeoff between the loss of some diagonal picture detail and the suppression of aliasing artifacts. >
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
