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An Image Interpolation Scheme for Repetitive Structures [chapter]

Hiêp Luong, Alessandro Ledda, Wilfried Philips
2006 Lecture Notes in Computer Science  
In this paper we present a novel method for interpolating images with repetitive structures.  ...  In particularly, we exploit the repetitive character of the image.  ...  In §3 we give an image interpolation scheme for repetitive structures and in §4 we show some experiments and results of our proposed method compared to other interpolation techniques.  ... 
doi:10.1007/11867586_10 fatcat:6yygubefinhapbpamj42vdgw7m

Non-Local Image Interpolation

Hiep Quang Luong, Alessandro Ledda, Wilfried Philips
2006 2006 International Conference on Image Processing  
In this paper we present a novel method for interpolating images and we introduce the concept of non-local interpolation.  ...  In particularly, we exploit the repetitive character of the image.  ...  CONCLUSION In this paper we have presented a novel method for interpolating images based on the repetitive character of the image.  ... 
doi:10.1109/icip.2006.312429 dblp:conf/icip/LuongLP06 fatcat:73vj2ukny5e5tevjafn2qmjw3i

Digital camera zooming based on unified CFA image processing steps

R. Lukac, K. Martin, K.N. Platanoitis
2004 IEEE transactions on consumer electronics  
A unified camera image processing system that performs zooming and full color image reconstruction for single-sensor digital cameras is introduced.  ...  The proposed scheme employs a small number of reusable, low-complexity operations and a consistent color model throughout to achieve high-quality zoomed output that is practical for hardware implementation  ...  The structure is formed by the original -emphasizes extreme colors in order to provide an intelligent LCR model.The remaining missing R components are generated with another repetition of (6), except with  ... 
doi:10.1109/tce.2004.1277836 fatcat:qtprxvm5xvbfxp7gub7b2zbucy

On a Fluency Image Coding System for Beef Marbling Evaluation

Kazuo Toraichi, Paul Wing Hing Kwan, Kazuki Katagishi, Tetsuo Sugiyama, Koichi Wada, Mitsuru Mitsumoto, Hiroyasu Nakai, Fumito Yoshikawa
2002 Pattern Recognition Letters  
Experimental results showing, respectively, size and image quality comparisons with other formats that support binary images and several enlargement schemes are included for evaluation. Ó  ...  This paper presents a Fluency Image Coding System of beef rib-eye images for Beef Marbling Evaluation.  ...  In addition, the quality of enlarged images by the proposed image coding system is compared with those of the pixel repetition, the bilinear interpolation, and the bi-cubic interpolation schemes based  ... 
doi:10.1016/s0167-8655(02)00077-6 fatcat:kmkvwhmqbzb7zbqcmulirjt6zq

Accurate and Efficient Approximation of the Continuous Gaussian Scale-Space [chapter]

Ullrich Köthe
2004 Lecture Notes in Computer Science  
The Gaussian scale-space is a standard tool in image analysis. While continuous in theory, it is generally realized with fixed regular grids in practice.  ...  We propose an efficient continuous approximation of the Gaussian scale-space that removes this restriction and opens up new ways to subpixel feature detection and scale adaptation.  ...  I'd like to thank Tony Lindeberg for many helpful discussions and comments.  ... 
doi:10.1007/978-3-540-28649-3_43 fatcat:3e224dws7ngjrdjbdnpud545ry

Texture Enhancement via High-Resolution Style Transfer for Single-Image Super-Resolution [article]

Il Jun Ahn Digital Media & Communications R&D Center, Samsung Electronics, Seoul, Korea)
2016 arXiv   pre-print
Our framework consists of three steps: (i) generate an initial HR image from an interpolated LR image via an SISR algorithm, (ii) generate an HR style image from the initial HR image via down-scaling and  ...  Here, the HR style image is obtained by down-scaling the initial HR image and then repetitively tiling it into an image of the same size as the HR image.  ...  as an input image, instead of the interpolated LR image itself.  ... 
arXiv:1612.00085v1 fatcat:2mecztpnvrbrldlcbukalxcfim

On the nature of 2D crystal unbending

Debora Gil, Jose Maria Carazo, Roberto Marabini
2006 Journal of Structural Biology  
order to recover an ideal crystal.  ...  Second, the performance of different extension algorithms (interpolation versus approximation) is explored.  ...  Acknowledgments The authors thank Andreas Engel and Ansgar Philippsen, for providing AQP2 data, and Drs. San Martín, Scheres, Núñ ez and Sánchez Sorzano for kindly revising the manuscript.  ... 
doi:10.1016/j.jsb.2006.07.012 pmid:16997575 fatcat:iehervlrxjcwzlw6dudf4jdydy

Bayer Pattern Based Cfa Zooming / Cfa Interpolation Framework

Rastislav Lukac, Karl Martin, K.N. Plataniotis, Bogdan Smolka, A.N. Venetsanopoulos
2004 Zenodo  
The remaining missing R components are generated with another repetition of (3), except with the diamond-shaped structure of both original and interpolated R components located at ζ = {(r − 2, s), (r,  ...  The objective results show that the proposed scheme outperforms both the CIZ and LZ approach for all the test images using all three performance measures.  ... 
doi:10.5281/zenodo.38395 fatcat:trn7pmrqkjc2tojd7fb2ike2fe

Image sequence processing for videowall visualization

Alessandro Skarabot, Giovanni Ramponi, Domenico Toffoli, Edward R. Dougherty, Jaakko T. Astola
2000 Nonlinear Image Processing XI  
Usually linear techniques such as pixel repetition or the bilinear method are employed for image interpolation, which however either introduce artifacts (e.g. blocking e ects) or tend to smooth edges.  ...  The scheme consists in a deinterlacing, an interpolation and an optional enhancement algorithm; its hardware implementation requires a low computational cost.  ...  The scheme consists in a deinterlacing, an interpolation and an optional enhancement algorithm.  ... 
doi:10.1117/12.379387 dblp:conf/einip/SkarabotRT00 fatcat:oow5qtfph5adnij7ofm2g25nfi

Planar feature-based motion control for near-repetitive structures

J.J.T.H. de Best, M.J.G. van de Molengraft, M. Steinbuch
2014 Control Engineering Practice  
The considered motion task in this paper is to position a tool relative to the features of a near-repetitive structure with an accuracy of o 10 μm.  ...  In many cases the repetitiveness of these structures is prone to imperfections, for example due to thermal expansion, such that the distance between successive features deviates.  ...  In practical applications the repetitive structure in general will contain a two-dimensional grid pattern, like for example the repetitive structure depicted in Fig. 1(a) , which shows diodes on a wafer  ... 
doi:10.1016/j.conengprac.2014.03.012 fatcat:ah7pygomlzfstkuy4ydocerp74

Live feedback and 3D photoacoustic remote sensing

Saad Abbasi, Kevan Bell, Benjamin Ecclestone, Parsin Haji Reza
2021 Quantitative Imaging in Medicine and Surgery  
The imaging resolution was measured to be 1.2 µm, the highest reported for a real-time reflection-mode architecture.  ...  In summary, we present a method that has a small computational overhead for image rendering, resulting in a live display capable of real-time frame rates.  ...  The special issue "Advanced Optical Imaging in Biomedicine" was commissioned by the editorial office without any funding or sponsorship.  ... 
doi:10.21037/qims-20-758 pmid:33654675 pmcid:PMC7829167 fatcat:derhaosnbndzzhgw6aatk6jur4

Efficacy of Distortion Correction on Diffusion Imaging: Comparison of FSL Eddy and Eddy_Correct Using 30 and 60 Directions Diffusion Encoding

Haruyasu Yamada, Osamu Abe, Takashi Shizukuishi, Junko Kikuta, Takahiro Shinozaki, Ko Dezawa, Akira Nagano, Masayuki Matsuda, Hiroki Haradome, Yoshiki Imamura, Joseph Najbauer
2014 PLoS ONE  
For the 60 directions encoding, non-diffusion-weighted and diffusion-weighted images were obtained with forward phase-encoding blips and non-diffusion-weighted images with the same parameter, except for  ...  We showed that images corrected with eddy and topup possessed higher FA values than images uncorrected and corrected with eddy_correct with trilinear (FSL default setting) or spline interpolation in most  ...  Spinecho EPI was used to obtain 60 contiguous axial images (repetition spatial resolution = 2.562.562.5 mm) using an 8-channel phased-array head coil with a parallel imaging factor of 2.  ... 
doi:10.1371/journal.pone.0112411 pmid:25405472 pmcid:PMC4236106 fatcat:ethpnw5mbjbkpol6r5xpqlh2fa

Neural FFTs for Universal Texture Image Synthesis

Morteza Mardani, Guilin Liu, Aysegul Dundar, Shiqiu Liu, Andrew Tao, Bryan Catanzaro
2020 Neural Information Processing Systems  
Synthesizing larger texture images from a smaller exemplar is an important task in graphics and vision.  ...  The conventional CNNs, recently adopted for synthesis, require to train and test on the same set of images and fail to generalize to unseen images.  ...  This leads to an interesting property: for texture images with inherent repetitive patterns, that look (semi-)periodic, FFT of a small texture example is simply the downsampled FFT of the full-size texture  ... 
dblp:conf/nips/MardaniLDLTC20 fatcat:s7oduse6bvfbnkzohgrmkbvtze

Digital zooming for color filter array-based image sensors

Rastislav Lukac, Konstantinos N. Plataniotis
2005 Real-time imaging  
The reduced computational complexity of the proposed schemes makes them ideal for real-time surveillance systems, industrial strength computer vision solutions, and mobile sensor-based visual systems.  ...  Under the proposed framework enlarged spatial resolution images are generated directly from the CFA-based image sensors.  ...  It is evident that the three schemes (CIZ, LASZ and LCDZ) perform an averaging operation that differs only in a number of repetitions.  ... 
doi:10.1016/j.rti.2005.01.002 fatcat:asiwiuajrfbavb2x5yfhfj25f4

Single-pixel three-dimensional imaging with time-based depth resolution

Ming-Jie Sun, Matthew P. Edgar, Graham M. Gibson, Baoqing Sun, Neal Radwell, Robert Lamb, Miles J. Padgett
2016 Nature Communications  
Time-of-flight three dimensional imaging is an important tool for many applications, such as object recognition and remote sensing.  ...  The simplicity of the system hardware could enable low-cost 3D imaging devices for precision ranging at wavelengths beyond the visible spectrum.  ...  An alternative method for scanning a scene and recovering depth and reflectivity via TOF has also been demonstrated utilizing structured pulsed illumination [19] [20] [21] [22] .  ... 
doi:10.1038/ncomms12010 pmid:27377197 pmcid:PMC5512623 fatcat:ts57ilrfe5abbpp23fcqbkdxve
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