| 基于自适应GOP的三维提升小波视频编码技术 |
| |
| 引用本文： | 方志军,罗桂华,伍世虔,杨寿渊,杨巨成.基于自适应GOP的三维提升小波视频编码技术[J].计算机工程与设计,2012,33(5):1913-1917. |
| |
| 作者姓名： | 方志军 罗桂华 伍世虔 杨寿渊 杨巨成 |
| |
| 作者单位： | 江西财经大学信息管理学院,江西南昌,330013 |
| |
| 基金项目： | 国家自然科学基金项目(60862002);江西省教育厅科技基金项目(GJJ11414) |
| |
| 摘 要： | 在三维提升视频编码框架中,视频运动场景切换时相邻视频帧之间的时间相关性将显著减弱,使得解码视频图像在场景切换处质量急剧下降.针对这一问题,提出了一种新的基于视频亮度分量的场景切换检测方法,并根据场景切换自适应分配图像组(groupof picture GOP)大小.实验结果表明,该自适应分配GOP策略有效提高了三维提升小波视频图像的编解码质量,降低了场景切换对视频编码的影响.
|
| 关 键 词： | 自适应 图像组 提升小波 视频 场景切换 |
3-D lift wavelet video coding techniques based on adaptive GOP structure |
| |
| FANG Zhi-jun
,
LUO Gui-hua
,
WU Shi-qian
,
YANG Shou-yuan
,
YANG Ju-cheng.3-D lift wavelet video coding techniques based on adaptive GOP structure[J].Computer Engineering and Design,2012,33(5):1913-1917. |
| |
| Authors: | FANG Zhi-jun LUO Gui-hua WU Shi-qian YANG Shou-yuan YANG Ju-cheng |
| |
| Affiliation: | (School of Information Technology,Jiangxi University of Finance and Economics,Nanchang 330013,China) |
| |
| Abstract: | Based on the three-dimensional video codec framework,the correlation among each video frame is less when a scene change happens.This normally results in poor video quality in the scene change for wavelet coding technique.To cope with such problem,a new method to detect scene change based on luminance component is proposed,in which,an adaptive modulation is applied to the GOP.The experimental results show that the new scheme can improve the coding quality and reduce the effect of scene change. |
| |
| Keywords: | adaptive GOP lift wavelet video scene change |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
