Abstract
The Letter describes a low complexity intraframe sub-band image coding algorithm suitable for video coding applications. A new class of quadrature mirror filter (QMF), called the generalised quadrature mirror filter (GQMF), with smaller overall delay, is introduced. In this approach, the spectra of the HDTV signals are first decomposed into smaller frequency bands where the baseband is DPCM encoded and the high bands are PCM encoded. For optimum performance, an efficient entropy coder is designed that significantly reduces the overall bit rate. It is shown that high quality HDTV images can be obtained at bit rates as low as 34Mbit/s with a considerable reduction in complexity.
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.
