摘要
最近數位相機的使用是越來越普遍了， 而且也有越來越多人擁有具有相機功能的可攜式裝置， 如照相手機、個人數位助理、等等諸如此類設備。每個人都希望可以隨時為回憶留下照片記念。但是並不是每個人都可以擁有很好的相機功能， 所以拍出來的影像品質都不太好。因此我們需要一個強健性的超解析度演算法去重建回一張較高解析度的影像， 所以我們將介紹我們的方法去處理不同影像運動情況。但是在真實的情況可能會遭受不同的狀況， 例如相機本身快門速度的限制， 像機拍攝時的穩定度， 或是過快的移動物體…等等都會造成影像品質的下降。所以在我們的方法中將會專注在超解析度演算法中最重要的運動估計部份。 方法中將採用影像相減的作法去進行運動的估計。因此我們能找到一個精確的運動範圍去產生比較好的結果。
並列摘要
Recently, digital still cameras are very popular, and many people have portable devices with camera module such as camera phone, PDA, and other devices. Each of them usually wants to take a picture for remembrance at any time. But some of their images have poor quality. Therefore we need a robust algorithm to reconstruct a high-resolution image, so we will introduce our method to conquer different image motion situations. But in real scene, super-resolution algorithm may suffer many difficulties such as camera shutter speed limitation, image jitter, fast motion objects, and so on. Because above situations will result in reduced image quality, we will focus on motion estimation which is the most important part in super-resolution algorithm. We propose an alternate approach using image subtraction method to estimate motion objects. Therefore we can find accurate object motion range to get a better result.
參考文獻
延伸閱讀
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- 邱政維（2015）。應用於深度圖邊緣強化之超解析度理論與實現〔碩士論文，國立暨南國際大學〕。華藝線上圖書館。https://www.airitilibrary.com/Article/Detail?DocID=U0020-2408201516125100
- Boqi, Z. (2013). 基於自我學習的高壓縮影像之超解析度及去塊技術研究 [master's thesis, National Tsing Hua University]. Airiti Library. https://doi.org/10.6843/NTHU.2013.00751
- Chang, C. W. (2009). An Efficient Technique for Image/Video Super Resolution [master's thesis, National Taiwan University]. Airiti Library. https://doi.org/10.6342/NTU.2009.00724
- 林耀文（2014）。Sparse Representation for Image Super-Resolution〔碩士論文，義守大學〕。華藝線上圖書館。https://doi.org/10.6343/ISU.2014.00322