| 基于时空域自回归模型的视频信号内插算法 |
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| 引用本文： | 干宗良. 基于时空域自回归模型的视频信号内插算法[J]. 科学技术与工程, 2012, 12(24): 6008-6011,6033 |
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| 作者姓名： | 干宗良 |
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| 作者单位： | 南京邮电大学 通信与信息工程学院 |
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| 摘 要： | 研究视频帧的内插算法。首先,提出了一种新的时空域自回归模型,像素点由当前帧内的4个像素点和相邻帧内的4的像素点线性表示。然后,根据此时空域模型,利用软判决策略估计图像的内插像素值。实验结果表明,图像内插算法的PSNR值比其它算法提高0.27 dB～0.39 dB,同时得到了较好的主观视觉效果。
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| 关 键 词： | 图像放大，视频插值，自回归模型，方向插值 |
| 收稿时间： | 2012-05-09 |
| 修稿时间： | 2012-05-09 |
Video Signal Interpolation based on Spatio-temporal Auto Regressive Model |
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| gan zong liang. Video Signal Interpolation based on Spatio-temporal Auto Regressive Model[J]. Science Technology and Engineering, 2012, 12(24): 6008-6011,6033 |
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| Authors: | gan zong liang |
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| Affiliation: | (College of Telecommunications & Information Engineering,Nanjing University of Posts and Telecommunications,Nanjing 210003,P.R.China) |
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| Abstract: | Application of the video interpolation methods is mainly focused on.Firstly,a novel spatio-temporal auto regressive(AR) model are proposed,which consists of 4 pixels from the current frame and 4 pixels from the adjacent frame,and then estimated the auto regressive model parameters to obtain the image interpolation values.And then,soft-decision estimation is used to get the video interpolation pixel based on the above model.Experiments demonstrate that PSNR of the improved algorithm is 0.27 dB to 0.39 dB higher than other algorithm,and subjective performance becomes better. |
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| Keywords: | Image Zooming Video Interpolation Auto Regressive Model Directional Interpolation |
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