基於內插法與梯度的單張影像超解析

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Please use this identifier to cite or link to this item: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/105736

Title:	基於內插法與梯度的單張影像超解析
Other Titles:	Single image super resolution based on Interpolation and gradient profile
Authors:	廖婉婷;Liao, Wan-Ting
Contributors:	淡江大學資訊工程學系碩士班顏淑惠;Yen, Shwu-Huey
Keywords:	超解析;內插法;重建式;梯度輪廓;Super Resolution (SR);Interpolation-based method;Reconstruction-based method;Gradient Profile
Date:	2015
Issue Date:	2016-01-22 15:07:25 (UTC+8)
Abstract:	本論文提出一個以Reconstruction-based method與Interpolation-based method為基礎的超解析技術，來重建最佳之高解析影像。在Interpolation-based method上我們採用Giachetti et al. [4]作為本篇方法的前處理，並透過大量的統計數據中得知低解析影像與高解析影像之間的Gradient profile存在著規律的變化關係，因此我們利用此特性找出低解析影像與高解析影像之關係式來重建。在最後的實驗中，也驗證了我們的方法能使影像能呈現更多細節。 This paper proposes a framework to re-build the high-resolution (HR) images from low-resolution (LR) images by Interpolation-based method and Reconstruction-based method. In pre-process, we adapt Giachetti et al. [4]’s result which base on Interpolation-based method to be our initial image. And through a large of natural image, it can be observe that there has a stable relationship between LR image’s gradient profile and HR image’s gradient profile. Therefore we can apply the relationship to re-establish the HR image. In the experiment, we show that the results are sharp and ringing or zigzagging artifacts are much reduced.
Appears in Collections:	[Graduate Institute & Department of Computer Science and Information Engineering] Thesis

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