一種多階段的變形雙線性影像放大方法

A multi-stages modified bilinear method for enhancing image resolutions

李哲豪(Che-Hao Li)

指導教授 ： 林啟芳

元智大學/資訊學院/資訊工程學系/碩士(2001年)

摘要

在傳統的影像放大技術中，普遍存在的最大問題就是影像放大後，會使得影像中物體的邊緣有鋸齒狀，而且還會有影像模糊的問題存在。這兩個主要的問題必須予以解決，才能使放大後的影像，仍保有一定的品質。而本論文的提出，主要的就是希望在放大影像的同時，還能保持影像的清晰度與對比度。因此在本篇論文中，將會利用一種多階段的變形雙線性影像放大方法來解決上述因放大時所產生的鋸齒狀與模糊不清的問題。

關鍵字

影像放大 ； 解析度增加

並列摘要

This paper proposed a multi-stages modified bilinear method for enhancing image resolutions. In tradition of enhancing image resolutions techniques, there will invariably exist two serious problems presented in the final magnification result. One problem is the edge will has jaggy after magnifying image, and the other problem is the image will blur after magnifying image. To resolve those problems and make the image has a good quality after magnifying image; we proposed a multi-stages modified bilinear method for enhancing image resolutions. The experimental results show the proposed method has excellent performance in subjective visual sense and quantitative measurement.

並列關鍵字

Image magnification ； Resolution enhancement

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