A Video Transmission System Based on a Human Visual Model
| dc.contributor.advisor | Baras, John S. | en_US |
| dc.contributor.author | Jiang, Yimin | en_US |
| dc.contributor.author | Gu, Junfeng | en_US |
| dc.contributor.author | Baras, John S. | en_US |
| dc.contributor.department | ISR | en_US |
| dc.contributor.department | CSHCN | en_US |
| dc.date.accessioned | 2007-05-23T10:08:38Z | |
| dc.date.available | 2007-05-23T10:08:38Z | |
| dc.date.issued | 1999 | en_US |
| dc.description.abstract | This paper presents a joint source-channel coding scheme of digital video broadcasting over satellite channels. The video compression is based on a human visual model. A perceptual distortion model, the just-noticeable-distortion (JND), is applied to improve the subjective quality of compressed videos. <p>3-D wavelet decomposition can remove spatial and temporal redundancy and provide scalability of video quality. In order to conceal the errors occurring under bad channel conditions, a novel slicing method and a joint source channel coding scenario that combines RCPC with CRC and utilizes the distortion information to allocate convolutional coding rates are presented. A new performance index based on JND is proposed and used to evaluate the overall performance at different signal-to-noise ratios (SNR). Our system uses the OQPSK modulation scheme.<p><i>VTC 1999</i> | en_US |
| dc.format.extent | 238201 bytes | |
| dc.format.mimetype | application/pdf | |
| dc.identifier.uri | http://hdl.handle.net/1903/6097 | |
| dc.language.iso | en_US | en_US |
| dc.relation.ispartofseries | ISR; TR 1999-81 | en_US |
| dc.relation.ispartofseries | CSHCN; TR 1999-40 | en_US |
| dc.subject | digital video broadcasting | en_US |
| dc.subject | just-noticeable-distortion | en_US |
| dc.subject | 3-D wavelet decomposition | en_US |
| dc.subject | signal-to-noise ratios (SNR) | en_US |
| dc.subject | Global Communication Systems | en_US |
| dc.title | A Video Transmission System Based on a Human Visual Model | en_US |
| dc.type | Technical Report | en_US |
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