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| Title | A high quality VBR MPEG system for Internet and broadcasting applications |
| Publication Type | Journal Article |
| Year of Publication | 1997 |
| Authors | Zahir, S., P. Nasiopoulos, and V. C. M. Leung |
| Journal | Consumer Electronics, IEEE Transactions on |
| Volume | 43 |
| Pagination | 531 -536 |
| Date Published | aug. |
| ISSN | 0098-3063 |
| Keywords | bandwidth allocation, bit rate selector, broadcasting, digital television, encoders-bank, GOP size, high quality VBR MPEG system, insertion, Internet, maximum bit rates, minimum bit rates, multiple video sources, multiplexed distribution, picture quality control process, real-time bit redistribution method, scene changes, television broadcasting, variable bit rate MPEG-2 encoding scheme, variable rate codes, VBR video stream, video coding, video quality |
| Abstract | A high quality variable bit rate (VBR) MPEG-2 encoding scheme that offers optimum video quality and bandwidth allocation is presented. This scheme utilizes a real-time bit redistribution method, insertion of I frames at scene changes and large GOP (group of pictures) size to produce high picture quality. An encoders-bank with predetermined sets of ldquo;nominal-long-term rdquo;, minimum and maximum bit rates in combination with a sophisticated picture quality control process allows a bit rate selector to choose the optimum bit stream from a set of encoders, thus resulting in a high quality VBR video stream. The proposed scheme is very easy to implement and offers an efficient real-time VBR solution for broadcasting applications that involve multiplexed distribution of multiple video sources |
| URL | http://dx.doi.org/10.1109/30.628671 |
| DOI | 10.1109/30.628671 |