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一种改进的极大验后估计序列超分辨率重建算法

An Improved MAP Super-resolution Reconstruction Approach from Image Sequences
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摘要 提出一种基于极大验后估计(MAP)超分辨率重建算法的新的改进算法。该算法将MAP算法或其他超分辨率重建算法所获得的高分辨率影像引入到MAP算法中,主要思想是基于所求取的分辨率应该与理想的高分辨率影像最大相关的原理。最后采取基于灰度的四参数仿射变换模型的配准算法,采用共轭梯度算法来迭代求解超分辨率重建方程。仿真试验证明,与普通MAP超分辨率重建的高分辨率影像相比,改进算法所获得的影像细节更清晰,对噪声的压制更明显,峰值信噪比(PSNR)也有明显提高。
作者 范铀 范冲
出处 《测绘通报》 CSCD 北大核心 2011年第5期5-9,共5页 Bulletin of Surveying and Mapping
基金 国家自然科学基金(40801142) 博士后基金(20100471127)
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参考文献14

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