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Image resolution enhancement by using interpolation followed by iterative back projection

P. Rasti, H. Demirel, G. Anbarjafari
2013 2013 21st Signal Processing and Communications Applications Conference (SIU)  
In this paper, we propose a new super resolution technique based on the interpolation followed by registering them using iterative back projection (IBP).  ...  Low resolution images are being interpolated and then the interpolated images are being registered in order to generate a sharper high resolution image.  ...  There are various techniques of registration [24] [25] [26] [27] in which here in this research work iterative back projection (IBP) registration [22] is the used.  ... 
doi:10.1109/siu.2013.6531593 dblp:conf/siu/RastiDA13 fatcat:7tqgvxaqvve3ndo5tpp7we6cfu

Image Super-resolution with Improved Wiener Restoration and Simultaneous Edge Enhancement

Nisha. B.R, Priya. S, Ashok Kumar. T
2014 International Journal of Computer Applications  
Proposed method focuses on multi frame, spatial domain and reconstruction based super resolution techniques, namely, non uniform interpolation and iterated back projection.  ...  Super resolution is the process of increasing the spatial resolution of an image by exploiting additional sub pixel information from frames of input image sequences.  ...  The high resolution image is reconstructed using two super resolution methods, namely non uniform interpolation and iterated back projection [13] .  ... 
doi:10.5120/17575-7993 fatcat:wraiz6i3rzb4bci7dm7y26i5wq

Novel Iterative Back Projection Approach

Patel Shreyas A. Patel Shreyas A.
2013 IOSR Journal of Computer Engineering  
The technique is based on combining an Iterative back projection (IBP) method with the edge preserving Infinite symmetrical exponential filter (ISEF).  ...  Though IBP can minimize the reconstruction error significantly in iterative manner and gives good result, it suffers from ringing effect and chessboard effect because error is back-projected without edge  ...  ML/MAP/POCS Methods • Iterative Back Projection(IBP)method Very famous interpolation techniques including Nearest Neighbor (NN), Bilinear (BI) and Bicubic (BC) methods are used for initial enhancement  ... 
doi:10.9790/0661-1116569 fatcat:ekfzuyboqbd33gm7qmjwbn3ezy

Analysis and characterization of super-resolution reconstruction methods

Sebastiano Battiato, Giovanni Gallo, Massimo Mancuso, Giuseppe Messina, Filippo Stanco, Morley M. Blouke, Nitin Sampat, Ricardo J. Motta
2003 Sensors and Camera Systems for Scientific, Industrial, and Digital Photography Applications IV  
"draft" High Resolution (HR) image and then update the estimated HR by back-projection error reduction.  ...  Reconstruction techniques, or Iterative Back-Projection (IBP) techniques, exploit a first building process on LR images to obtain a “draft” HR image, then update the estimated HR by back-projection error  ... 
doi:10.1117/12.476749 fatcat:2k7iagpl2jarvlimgld62ekehe

Restoration of Bayer-sampled Image Sequences

M. Gevrekci, B. K. Gunturk, Y. Altunbasak
2008 Computer journal  
In this paper, we propose a multi-frame spatial resolution enhancement algorithm based on the projections onto convex sets (POCS) technique.  ...  When there are multiple images, it is possible not only to have better estimates of the missing color values but also to improve the spatial resolution further (using super-resolution reconstruction).  ...  Figure 4 illustrates this idea for the iterated back-projection super-resolution algorithm [Irani and Peleg, 1991] .  ... 
doi:10.1093/comjnl/bxm041 fatcat:h7y6ypc6afdwdj3h3cymlw5sbi

Nonlocal back-projection for adaptive image enlargement

Weisheng Dong, Lei Zhang, Guangming Shi, Xiaolin Wu
2009 2009 16th IEEE International Conference on Image Processing (ICIP)  
The iterative back-projection (IBP) technique iteratively reconstructs a high resolution (HR) image from its blurred and downsampled low resolution (LR) counterpart.  ...  However, the conventional IBP methods often produce many "jaggy" and "ringing" artifacts because the reconstruction errors are back projected into the reconstructed image isotropically and locally.  ...  The iterative back-projection (IBP) technique [6] can accomplish the HR image interpolation and de-blurring simultaneously.  ... 
doi:10.1109/icip.2009.5414423 dblp:conf/icip/DongZSW09 fatcat:xjnh5fwqbbhd3pg5wyr6fq34ru

Super-resolution using neighbor embedding of back-projection residuals

Marco Bevilacqua, Aline Roumy, Christine Guillemot, Marie-Line Alberi Morel
2013 2013 18th International Conference on Digital Signal Processing (DSP)  
We propose a novel training scheme, where the m-patches are extracted from enhanced back-projected interpolations of the LR images and the r-patches are extracted from the back-projection residuals.  ...  are used to match the input image patches and contain only low-frequency content, and reconstruction patches (r-patches), which are used to generate the output image patches and actually bring the high-frequency  ...  the enhanced interpolation E (I L ), by first interpolating and iterative back-projecting w.r.t.  ... 
doi:10.1109/icdsp.2013.6622796 dblp:conf/icdsp/BevilacquaRGA13 fatcat:343lg3geffh25mb2an2hljb2ge

LWT based Image Super Resolution

Gini Christopher, Minnu Jayan. C
2015 International Journal of Engineering Research and  
An iterative back projection method is used to reconstruct the high resolution image in an efficient iterative manner.  ...  This paper presents an effective approach to recover a high resolution image from a single low resolution input image.  ...  At the same time an iterative back-projection method is used to reconstruct the high resolution image in an efficient iterative manner. II.  ... 
doi:10.17577/ijertv4is060688 fatcat:44d2fihoyvc6jjc4nvywxixtjq

High resolution iterative CT reconstruction using graphics hardware

B. Keck, H.G. Hofmann, H. Scherl, M. Kowarschik, J. Hornegger
2009 2009 IEEE Nuclear Science Symposium Conference Record (NSS/MIC)  
In this paper we present an enhanced version of our efficient implementation of the most time-consuming parts of the iterative reconstruction algorithm: forward-and back-projection.  ...  The fastest iterative implementations on graphics cards use 3-D textures to exploit hardwareaccelerated trilinear interpolation.  ...  After all corrective images have been computed and back-projected for all iterations the reconstruction finishes by transferring the volume to the host system memory. C.  ... 
doi:10.1109/nssmic.2009.5402433 fatcat:tszdnchud5dyxcafjblk2lco5m

Edge-preserving single image super-resolution

Qiang Zhou, Shifeng Chen, Jianzhuang Liu, Xiaoou Tang
2011 Proceedings of the 19th ACM international conference on Multimedia - MM '11  
Then we use a shock filter to enhance strong edges in the initial up-sampling result and obtain an intermediate high-resolution image.  ...  Finally, we enforce a reconstruction constraint on the highresolution image so that fine details can be inferred by back projection.  ...  Figure 6 : 6 Comparison with the learning based method at 3× magnification using the "Man" image. (a) Original image zoomed-in by nearest interpolation. (b) Back projection. (c) Result by [4].  ... 
doi:10.1145/2072298.2071932 dblp:conf/mm/ZhouCLT11 fatcat:hvbwsfcrwrbizczrunfxu63yae

DWT Based Resolution Enhancement of Video Sequences [chapter]

Sara Izadpanahi, Cagri Ozcinar, Gholamreza Anbarjafari, Hasan Demirel
2013 Discrete Wavelet Transforms - A Compendium of New Approaches and Recent Applications  
Keren (1988) registration followed by interpolation, iterated back projection, robust super resolution, and structure adaptive normalized convolution techniques for reconstruction.  ...  in this work for comparison are: • Bicubic interpolationIterated Back Projection (1991)• Robust super resolution technique (Zomet et al., 2001) Fig. 1 ( 1 a-d) shows the four low resolution consecutive  ... 
doi:10.5772/48827 fatcat:6vjo7i24gvhynk7emq5sosfdlm

Video Superresolution Reconstruction Using Iterative Back Projection with Critical-Point Filters Based Image Matching

Yixiong Zhang, Mingliang Tao, Kewei Yang, Zhenmiao Deng
2015 Advances in Multimedia  
Finally, high-resolution (HR) frames are reconstructed based on the motion fields using iterative back projection (IBP) algorithm.  ...  To improve the spatial resolution of reconstructed images/videos, this paper proposes a Superresolution (SR) reconstruction algorithm based on iterative back projection.  ...  Original Iterative Back Projection Algorithm. Iterative back projection [1, 6, 7] starts with an initial estimation of high-resolution image.  ... 
doi:10.1155/2015/285969 fatcat:sqfisq6ahrhkld5ulhmpradlte

Video superresolution reconstruction based on subpixel registration and iterative back projection

Xiao-hai He
2009 Journal of Electronic Imaging (JEI)  
-Iterative solving method -Gaussian pyramid image model • Reconstruction algorithm -Use of iterative back projection algorithm 2 / 36  ...   Proposed method -Improvement of spatial resolution of video • Use of sliding window in registration • Registration algorithm -Use of Four-parameter transformation model through Taylor series expansion  ...  image in first level by using summation of the estimated optimal movement parameter in third level and in second levelSuper-resolution Reconstruction Algorithm Iterative back projection method -Regarding  ... 
doi:10.1117/1.3091936 fatcat:e233nz3g3rblvo3osjn2wnotpu

Super-Resolution Image with Estimated High Frequency Compensated algorithm

Jong-Tzy Wang, Kai-Wen Liang, Shu-Fan Chang, Pao-Chi Chang
2009 2009 9th International Symposium on Communications and Information Technology  
It is based on Iterative Back Projection (IBP) method combined with compensated high frequency models according to different applications.  ...  The proposed algorithm not only improves the quality of enlarged images produced by zero-order, bilinear, or bicubic interpolation methods, but also accelerates the convergence speed of IBP.  ...  It makes use of the common image interpolation methods to enlarge the image, and then process it according to Iterative Back Projection (IBP) method corporate with high frequency compensation concept.  ... 
doi:10.1109/iscit.2009.5341263 fatcat:a6bhrz4xdvfz3omxvot6cireki

Bilateral Back-Projection for Single Image Super Resolution

Shengyang Dai, Mei Han, Ying Wu, Yihong Gong
2007 Multimedia and Expo, 2007 IEEE International Conference on  
In this paper, a novel algorithm for single image super resolution is proposed. can minimize the reconstruction error with an efficient iterative procedure.  ...  Promising results can be obtained by the proposed bilateral back-projection method efficiently.  ...  Given only one LR input image, the updating procedure can be summarized as doing the following two steps iteratively: • Compute the LR error e r (I h t ) by Eqn. 2. • Update the HR image by back-projecting  ... 
doi:10.1109/icme.2007.4284831 dblp:conf/icmcs/DaiHWG07 fatcat:fdwxsywdezgnzctyo5jfj43qdq
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