کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
537253 870795 2013 15 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Accurate image registration for MAP image super-resolution
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر چشم انداز کامپیوتر و تشخیص الگو
پیش نمایش صفحه اول مقاله
Accurate image registration for MAP image super-resolution
چکیده انگلیسی

The accuracy of image registration plays a dominant role in image super-resolution methods and in the related literature, landmark-based registration methods have gained increasing acceptance in this framework. In this work, we take advantage of a maximum a posteriori (MAP) scheme for image super-resolution in conjunction with the maximization of mutual information to improve image registration for super-resolution imaging. Local as well as global motion in the low-resolution images is considered. The overall scheme consists of two steps. At first, the low-resolution images are registered by establishing correspondences between image features. The second step is to fine-tune the registration parameters along with the high-resolution image estimation, using the maximization of mutual information criterion. Quantitative and qualitative results are reported indicating the effectiveness of the proposed scheme, which is evaluated with different image features and MAP image super-resolution computation methods.


► Maximum a posteriori (MAP) scheme for image-super resolution.
► Registration of low resolution images using SIFT, SURF and Harris features.
► Fine tuning of registration parameters by maximization of mutual information criterion.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Signal Processing: Image Communication - Volume 28, Issue 5, May 2013, Pages 494–508
نویسندگان
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