کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6941891 | 870776 | 2015 | 14 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Super-resolution by polar Newton-Thiele׳s rational kernel in centralized sparsity paradigm
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
چشم انداز کامپیوتر و تشخیص الگو
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In general the rectangular windows are used by many super-resolution reconstruction approaches, however, they are not suitable for the arc regions of images. In view of this, a novel reconstruction algorithm is proposed in this paper, which is based on the Newton-Thiele׳s rational interpolation by continued fractions in the polar coordinates. In order to get better reconstructed results, we also present a novel model where the Newton-Thiele׳s rational interpolation scheme used to magnify images/videos is combined with the sparse representation scheme used to refine the reconstructed results. Plenty of experiments in image and video sequences demonstrate that the new method can produce high-quality resolution enhancement, as compared with the state-of-the-art methods. Experimental results show that the proposed method achieves much better results than other methods in terms of both visual effect and PSNR.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Signal Processing: Image Communication - Volume 31, February 2015, Pages 86-99
Journal: Signal Processing: Image Communication - Volume 31, February 2015, Pages 86-99
نویسندگان
Lei He, Jieqing Tan, Zhuo Su, Xiaonan Luo, Chengjun Xie,