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Feature-Preserving Image Restoration from Adaptive Triangular Meshes
[chapter]
2015
Lecture Notes in Computer Science
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The triangulation of images has become an active research area in recent years for its compressive representation and ease of image processing and visualization. ...
The existing methods such as linear interpolation, least-square interpolation, or interpolation based on radial basis functions (RBFs) work to some extent, but often yield blurred features (edges, corners ...
A halftoning-based sampling strategy is adopted to provide feature-sensitive and adaptive point distributions in the image domain. ...
doi:10.1007/978-3-319-16631-5_3
fatcat:blvwb3i56vfnnmn3w6yle23oqm
Adaptive Mesh Representation and Restoration of Biomedical Images
[article]
2014
arXiv
pre-print
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The triangulation of images has become an active research area in recent years for its compressive representation and ease of image processing and visualization. ...
The existing methods such as linear interpolation, least-square interpolation, or interpolation based on radial basis functions (RBFs) work to some extent, but often yield blurred features (edges, corners ...
A halftoning-based sampling strategy is adopted to provide feature-sensitive and adaptive point distributions in the image domain. ...
arXiv:1406.7062v1
fatcat:hjvn6a22kzgl5pd4p2ksywidum
Nonlinear resampling for edge preserving moire´ suppression
2000
Journal of Electronic Imaging (JEI)
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A novel technique is presented to adaptively resample an image on the screen lattice using a local estimate of the risk of aliasing. ...
Printing applications using classical halftoning need to resample the original image to a screen lattice. This resampling can cause undesirable moiré artifacts in the screened image. ...
Fig. 1 1 Example of simulated gravure printing halftone.
͑9͒Figure 3 3 For the type of gravure printing we consider, the values of a and b are 0.2 and 0.12 mm. ...
doi:10.1117/1.1289535
fatcat:c6kntlto7fcm7j7fwpjkcz754q
A fast approach for accurate content-adaptive mesh generation
2003
IEEE Transactions on Image Processing
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A key issue in mesh modeling is how to generate a mesh structure that well represents an image by adapting to its content. ...
The proposed algorithm is noniterative, fast, and easy to implement. ...
., for providing the program code for Garcia's method. ...
doi:10.1109/tip.2003.812757
pmid:18237961
fatcat:3ri6fn4wpvb5ljpjfnwuihaei4
Power-scalable multi-layer halftone video display for electronic paper
2008
2008 IEEE International Conference on Multimedia and Expo
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Video halftoning is a key technology for use in the new display device, electronic paper (e-paper). ...
In this paper, we propose a power-scalable multi-layer halftone video display scheme, which is composed of layer coding, non-uniform sampling, and icker rate reduction. ...
complex image perceptual hashing [8] or computationally uncomplex interpolation/extrapolation is adopted to choose a similar video frame from a previously decoded halftone video to accomplish insertion ...
doi:10.1109/icme.2008.4607717
dblp:conf/icmcs/HsuLP08
fatcat:ordjyj26wvcqfogawpve7wkhmy
Least-squares model-based halftoning
1992
Human Vision, Visual Processing, and Digital Display III
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A least-squares model-based (LSMB) approach to digital halftoning is proposed. It exploits both a printer model and a model for visual perception. ...
It attempts to produce an optimal halftoned reproduction, by minimizing the squared error between the response of the cascade of the printer and visual models to the binary image and the response of the ...
Bilinear and spline interpolation can produce an image of any size. ...
doi:10.1117/12.135965
fatcat:knpqspesgjgk3n3jtobdd2p3aq
Least-squares model-based halftoning
1999
IEEE Transactions on Image Processing
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A least-squares model-based (LSMB) approach to digital halftoning is proposed. It exploits both a printer model and a model for visual perception. ...
It attempts to produce an optimal halftoned reproduction, by minimizing the squared error between the response of the cascade of the printer and visual models to the binary image and the response of the ...
Bilinear and spline interpolation can produce an image of any size. ...
doi:10.1109/83.777090
pmid:18267524
fatcat:esdq6ernlfgqhmdxf5efsamdam
Subject index
1999
IEEE Transactions on Image Processing
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., + , T-IP Sep 99 1282-1292 image restoration, Bayesian and regularization methods for hyperparameter estim. Molina, R., + , T-IP Feb 99 231-246 inverse halftoning using wavelets. ...
Xin Wang, T-IP Jul 99 993-996 halftoning error diffusion filter, phase response. Kumar, A., + , T-IP Sep 99 1282-1292 image interpolation using neural networks. ...
doi:10.1109/tip.1999.806633
fatcat:wl55kzilqzd33dlz6kmq3cljdy
Using vector quantization for image processing
1993
Proceedings of the IEEE
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Recent work has used vector quantization both to simplify image processing tasks-such as enhancement, classification, halftoning, and edge detectio-nd to reduce the computational complexiry by performing ...
Compression has traditionally been done with little regard for image processing operations that may precede or follow the compression step. ...
Ning, and J. Goldschneider for their helpful cooperation and contributions to this work. ...
doi:10.1109/5.237540
fatcat:kxchk2ghinf6tluqcdqiq5xokq
The mathematics of halftoning
2003
IBM Journal of Research and Development
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This paper describes some mathematical aspects of halftoning in digital printing. Halftoning is the technique of rendering a continuous range of colors using only a few discrete ones. ...
There are two major classes of methods: dithering and error diffusion. Some discussion is presented concerning the method of dithering, but the main emphasis is on error diffusion. ...
, and then interpolating sets of weights for the remaining gray levels. ...
doi:10.1147/rd.471.0005
fatcat:tf4ec62oufhxlagbt2wmvyuitu
DSP utilization in digital color printing
2005
IEEE Signal Processing Magazine
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raster output scanner (ROS) for imaging and printing. ...
Let f(ū, d, tone) denote the toner area coverage for a halftone image of tone using ū ∈ R m as the settings for its m actuators, with r d distinct disturbances taking on values d ∈ R r d . ...
doi:10.1109/msp.2005.1458303
fatcat:foiugnbpova4bgxtmlufb6fjna
Journal of real-time image processing: fourth issue of volume 14
2018
Journal of Real-Time Image Processing
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The experimental results are presented on synthetic data, on real images and on medical images in the context of aorta vessel segmentation in computed tomography (CT) images. ...
The components of adaptive optics consist of a University of Texas at Dallas, Richardson, TX, USA camera for recording aberrations, a corrective mechanism and a real-time controller for processing images ...
doi:10.1007/s11554-018-0771-2
fatcat:5wihdxwxenel7igc6pmswe6k7u
Least-squares spline resampling to a hexagonal lattice
2002
Signal processing. Image communication
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This paper first introduces a spline model for different orders, both for orthogonal and hexagonal lattices. ...
Experimental results for a printing application demonstrate the feasibility of the proposed method and are compared against the standard approach. ...
Typical interpolation functions are not adapted to the characteristics of the target lattice. ...
doi:10.1016/s0923-5965(02)00009-7
fatcat:mckucyvbgzeoxmwn4rnn7agfn4
Two-Stage Interpolation Algorithm Based on Fuzzy Logics and Edges Features for Image Zooming
2009
EURASIP Journal on Advances in Signal Processing
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This work presents an innovative two-stage interpolation algorithm for image resolution enhancement and zooming applications. ...
The desired high-resolution images are obtained via two interpolative stages. ...
Please refer to http://www.ee.ncu.edu.tw/∼fuzzylab/ExpResults/ (National Central University) for downloading the results and related materials. ...
doi:10.1155/2009/372180
fatcat:ch4umcjicnevhkal4hgeyps5em
Color imaging for multimedia
1998
Proceedings of the IEEE
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However, the requirements for accurate color reproduction and for the preservation of this information across display and print devices that have very different characteristics and may be geographically ...
To a significant degree, multimedia applications derive their effectiveness from the use of color graphics, images, and video. ...
Balasubramanian for his helpful suggestions and pointers and J. Stinehour for making available the data used in Figs. 5 and 6. ...
doi:10.1109/5.687831
fatcat:akuuxpn4bvbipaecsuicahc5ji
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