| 基于视觉显著性的空间图像序列放大算法* |
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| 引用本文： | 訾玲玲,丛鑫,张亚萍.基于视觉显著性的空间图像序列放大算法*[J].计算机应用研究,2016,33(2). |
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| 作者姓名： | 訾玲玲 丛鑫 张亚萍 |
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| 作者单位： | 辽宁工程技术大学 电子与信息工程学院,辽宁工程技术大学 电子与信息工程学院,云南师范大学 信息学院 |
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| 基金项目： | 国家自然科学基金(61262070)；辽宁省教育厅科学研究一般项目(L2015225)；辽宁工程技术大学生产技术问题调研基金(14-T-009)； |
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| 摘 要： | 针对已有的图像序列放大方法存在空间运动目标放大后细节不清晰的问题,提出基于视觉显著性的图像序列放大算法。算法首先采用视觉显著性技术获取空间运动目标区域；而后设计不同的放大策略；最后提出分区插值计算和区域能量保护方法,提升放大过程中的空间运动目标清晰度。与已有的放大算法对比的实验结果表明,提出的算法取得了更好的视觉效果和更高的平均梯度指标值、边缘强度指标值、信息熵指标值和图像功率谱指标值。
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| 关 键 词： | 视觉显著性 空间图像序列 图像放大 区域保护 |
| 收稿时间： | 2014/10/29 0:00:00 |
| 修稿时间： | 2015/12/26 0:00:00 |
Space image sequence upscaling algorithm based on visual saliency |
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| ZI Ling-ling,CONG Xin and ZHANG Ya-ping.Space image sequence upscaling algorithm based on visual saliency[J].Application Research of Computers,2016,33(2). |
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| Authors: | ZI Ling-ling CONG Xin and ZHANG Ya-ping |
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| Affiliation: | School of Electronic and Information Engineering,Liaoning Technical University,,Faculty of Computer Science Information Technology,Yunnan Normal University |
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| Abstract: | Aiming at solving the problem of blurry details in the process of enlarging image, this paper proposed a space image sequence upscaling algorithm based on visual saliency. Firstly, space target motion regions were obtained by utilizing the visual saliency technique. Secondly, the different enlarging strategies were designed according to the original resolutions and target resolutions. Finally, partition interpolation calculation and region energy protection were presented, so the definitions of space motion targets could be improved and high quality image sequences could be obtained. Compared to the existing algorithms, experiments show that the proposed algorithm achieves better visual effects and higher index values, including mean gradient, edge intensity, information entropy, and image power spectrum. |
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| Keywords: | visual saliency space image sequences image upscaling region protection |
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