Abstract
In this paper, a novel modification in the step 3 of the rate control test Model 5 (TM5) of MPEG-2 video encoder is proposed. TM5 uses variance based activity measure to adapt the quantization parameter for each macroblock. It is found that if DCT coefficients are used instead of variance, the PSNR quality of the reconstructed image improves by 0.5 to 2 dB. In addition the computational complexity of the new approach is significantly lesser than that of TM5.
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.
