Conference paper
Reduced complexity MPEG2 video post-processing for HD display
This paper presents MPEG(2) decoder post-processing for high definition (HD) flat panel displays. The focus is to design efficient post-processing to reduce blocking and ringing artifacts. Standard deblocking modules are improved to obtain a significant load reduction through a new DCT based control scheme.
Standard deringing modules are enhanced through adaptive thresholding to improve the image quality. The schemes are implemented in a MPEG2 decoder for evaluation. The enhanced deblocking filter results in load reduction with an overall reduction in execution time of 41~46% over the basic implementation.
The enhanced deringing combined with the deblocking achieves PSNR improvements on average of 0.5 dB over the basic deblocking and deringing on SDTV and HDTV test sequences. The deblocking and deringing models described in the paper are generic and applicable to a wide variety of common (8times8) DCT-block based real-time video schemes.
| Language: | English |
|---|---|
| Publisher: | IEEE |
| Year: | 2008 |
| Pages: | 769-772 |
| Proceedings: | 2008 IEEE International Conference on Multimedia and Expo |
| ISBN: | 1424425700 , 1424425719 , 9781424425709 and 9781424425716 |
| Types: | Conference paper |
| DOI: | 10.1109/ICME.2008.4607548 |
| ORCIDs: | Forchhammer, Søren |
DCT based control scheme DCT-discrete cosine transform Decoding Discrete cosine transforms HD display HDTV test sequences HDTV-high definition television High definition video MPEG 4 Standard MPEG post-processing MPEG(2) decoder MPEG2 video post-processing PSNR PSNR improvements Pixel SDTV standard definition television SDTV test sequences Transform coding adaptive thresholding blocking artifacts reduction deblocking filter deblocking modules decoding deringing modules discrete cosine transforms flat panel displays high definition flat panel displays high definition television image quality image sequences ringing artifacts reduction video coding
