Xudong Jiang, Bin Sheng, Weiyao Lin, Wei Lü, Lizhuang Ma,
Anti-aliasing is a well-established technique in computer graphics that reduces the blocky or stair-wise appearance ... This paper provides a comprehensive overview of the anti-aliasing techniques used in computer graphics, which can be classified into two categories: post-filtering based anti-aliasing and pre-filtering based anti-aliasing. We discuss post-filtering based anti-aliasing algorithms through classifying them into hardware anti-aliasing techniques and post-process techniques for deferred rendering. ...
Tópico(s): Advanced Image Processing Techniques
2014 - Zhejiang University Press | Journal of Zhejiang University SCIENCE C
... this paper, we provide a comprehensive theory of anti‐aliasing sampling patterns that explains and revises known results, ... point patterns with any desired power spectra and anti‐aliasing properties. We start by deriving the exact spectral ... the shape of power spectra is related to anti‐aliasing properties. Based on this analysis, we then formulate the problem of generating anti‐aliasing sampling patterns as constrained variational optimization on power ...
Tópico(s): Industrial Vision Systems and Defect Detection
2020 - Wiley | Computer Graphics Forum
David H. Thomas, Arun N. Netravali, Denny Fox,
... for antialiasing ray‐traced pictures is introduced. Traditionally, anti‐aliasing has been done using super‐sampling. However, this ... polyhedra, and objects formed using set operations. Our anti‐aliasing gives a high image quality that can only ... be rendered twice as fast as with no anti‐aliasing and six to eight times as fast as when super‐sampling is used for anti‐aliasing.
Tópico(s): Advanced Image Processing Techniques
1989 - Wiley | Computer Graphics Forum
Sanghee Cho, Ron Grazioso, Nan Zhang, M. Aykac, M. Schmand,
... digital timing methods is affected by sampling rate, anti-aliasing and signal interpolation filters. We used the Nyquist ... the profile fluctuate as the source location changes. Anti-aliasing filters are required in this case to avoid ...
Tópico(s): Medical Imaging Techniques and Applications
2011 - IOP Publishing | Physics in Medicine and Biology
Maru Kawase, Kazuma Shinoda, Madoka Hasegawa,
... we analyze the FSFA and a more generalized anti-aliasing MSFA, and we identify the property that makes MSFAs anti-aliasing. Furthermore, we propose a novel demosaicking method that ... frequency-decomposition-based and compressive-sensing-based demosaicking. Anti-aliasing MSFAs enable demosaicking to comprehend the precise spatial ...
Tópico(s): Advanced Image Fusion Techniques
2019 - Institute of Electrical and Electronics Engineers | IEEE Transactions on Image Processing
Jonathan Korein, Norman I. Badler,
The desirability of incorporating temporal anti-aliasing, or motion blur, into computer generated animation is discussed and two algorithms for achieving this effect are described. The first approximates ... relationship of the algorithms to forms of spatial anti-aliasing are discussed.
Tópico(s): Advanced Image Processing Techniques
1983 - ACM SIGGRAPH | ACM SIGGRAPH Computer Graphics
Eugene Fiume, Alain Fournier, Larry Rudolph,
... a single scanline, z-buffer algorithm. Since exact anti-aliasing is inherently slow, a novel parallel anti-aliasing algorithm is presented in which subpixel coverage by ...
Tópico(s): Advanced Vision and Imaging
1983 - ACM SIGGRAPH | ACM SIGGRAPH Computer Graphics
... to perform well in interpolation problems such as anti-aliasing and smooth-shading is dependent on the topology ... topology and representation that lends itself to simple anti-aliasing computations between elements of an arbitrary set of ...
Tópico(s): Advanced Vision and Imaging
1986 - ACM SIGGRAPH | ACM SIGGRAPH Computer Graphics
Wen Bao, Rui Zhou, Jianguo Yang, Daren Yu, Ning Li,
... extraction is frequency aliasing. In this paper, an anti-aliasing lifting scheme is proposed to solve this problem. ... of signal to noise (SNR) is improved. The anti-aliasing lifting scheme is applied to analyze a practical ... show that using the features extracted from the anti-aliasing lifting scheme for classification can obtain a higher ...
Tópico(s): Image and Signal Denoising Methods
2009 - Elsevier BV | Mechanical Systems and Signal Processing
Matthias Keller, Alexander Buhmann, Friedel Gerfers, Maurits Ortmanns, Yiannos Manoli,
... compared to their discrete-time counterparts: the implicit anti-aliasing feature (AAF). Although inherent in any CT architecture, analysis of anti-aliasing properties has mostly been restricted to single-stage ... of a cascaded architecture are involved in the anti-aliasing behaviour and hence that it is not solely ...
Tópico(s): CCD and CMOS Imaging Sensors
2007 - Institute of Electrical and Electronics Engineers | IEEE Transactions on Circuits and Systems I Regular Papers
Produção Nacional
Revisado por pares
Ivan Napoleão Bastos, F. Huet, R.P. Nogueira, Philippe Rousseau,
This paper points out the importance of anti‐aliasing filtering in the analog‐to‐digital conversion performed in electrochemical noise (EN) measurements. This operation is currently implemented in spectrum analyzers, but it ... have a wrong amplitude when measured without filtering. Anti‐aliasing filtering may be carried out with analog filters ...
Tópico(s): Concrete Corrosion and Durability
2000 - Institute of Physics | Journal of The Electrochemical Society
Mansour Rachid, Sudhakar Pamarti, Babak Daneshrad,
... a fundamentally novel approach to the design of anti-aliasing filters. The approach, termed Filtering by Aliasing, incorporates ... proposed Filtering by Aliasing idea, the effective programmable anti-aliasing filter, its design, and its range of frequency ...
Tópico(s): Analog and Mixed-Signal Circuit Design
2013 - Institute of Electrical and Electronics Engineers | IEEE Transactions on Signal Processing
Olexander N. Romanyuk, Sergii Pavlov, Olexander V. Melnyk, S.O. Romanyuk, Andrzej Smolarz, Мадина Базарова,
... determine the intensity of the color pixel. For anti-aliasing purposes a twelve-angle pixel model is suggested. ... a device is proposed for hardware implementation of anti-aliasing.
Tópico(s): Advanced Scientific Research Methods
2015 - SPIE | Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE
Bo Dai, Ran Zhuo, Songchao Yin, Mengxuan Lv, Ruijin Hong, Qi Wang, Dawei Zhang, Xu Wang,
... a relatively low-sampling-rate electronic digitizer, an anti-aliasing technique based on optical time-division multiplexing is ... system is demonstrated experimentally. By using the proposed anti-aliasing technique, a 20 GS/s sampling rate is ... 16 dB, compared to that not using the anti-aliasing technique and at least 2.3 dB comparing ...
Tópico(s): Integrated Circuits and Semiconductor Failure Analysis
2016 - Optica Publishing Group | Optics Letters
Tomohiko Nakamura, Shihori Kozuka, Hiroshi Saruwatari,
... call the DWT layers, because the DWTs have anti-aliasing filters and the perfect reconstruction property. We further ... DWT layers does not guarantee the existence of anti-aliasing filters, we derive constraints for this guarantee in ... and the importance of simultaneously considering both the anti-aliasing filters and the perfect reconstruction property.
Tópico(s): Music and Audio Processing
2021 - Institute of Electrical and Electronics Engineers | IEEE/ACM Transactions on Audio Speech and Language Processing
Produção Nacional
Revisado por pares
Raphael L. A. Reis, Washington Luiz Araújo Neves, Damásio Fernandes,
Anti-aliasing filters are used in cascade with instrument transformers (IT) as part of protective relay data acquisition ... signals to fault locators. Due to IT and anti-aliasing filters transient responses, the fault locators input data ... short-circuit simulations considering different IT topologies and anti-aliasing filters. The total amount of fault location estimated ... IT spectrum and the oscillations presented in the anti-aliasing filters bandpass.
Tópico(s): Islanding Detection in Power Systems
2018 - Elsevier BV | Electric Power Systems Research
Andre Schollmeyer, Bernd Froehlich,
... footprint in screen-space which allows for an anti-aliasing with minimal performance overhead. Fragments with trimmed edges ... memory efficient. Our curve coverage estimation used for anti-aliasing provides an efficient trade-off between quality and performance compared to multisampling or screen-space anti-aliasing approaches.
Tópico(s): Advanced Vision and Imaging
2018 - Institute of Electrical and Electronics Engineers | IEEE Transactions on Visualization and Computer Graphics
... successful at eliminating aliasing effects. One solution, area anti-aliasing, is not only effective, it produces results comparable ...
Tópico(s): 3D Surveying and Cultural Heritage
1980 - ACM SIGGRAPH | ACM SIGGRAPH Computer Graphics
D.C. von Grungen, R.P. Sigg, M. Ludwig, U.W. Brugger, G.S. Moschytz, H. Melchior,
... an output clock of 250 Hz. The integrated anti-aliasing filter has a low pole frequency of about ...
Tópico(s): Advanced Adaptive Filtering Techniques
1982 - Institute of Electrical and Electronics Engineers | IEEE Journal of Solid-State Circuits
... RC filter is described for use as an anti-aliasing/smoothing filter in a PCM channel bank filter. ...
Tópico(s): Advanced Adaptive Filtering Techniques
1982 - Institute of Electrical and Electronics Engineers | IEEE Journal of Solid-State Circuits
... architectures for image synthesis have been built, but "anti-aliasing" remains a problem. A parallel processing architecture is ...
Tópico(s): Image Enhancement Techniques
1981 - ACM SIGGRAPH | ACM SIGGRAPH Computer Graphics
... surface algorithm with integrated analytic spatial and temporal anti-aliasing is presented. This algorithm models moving polygons as ... on the outline of integrated spatial and temporal anti-aliasing given by Korien and Badler. An analytic solution ...
Tópico(s): Digital Image Processing Techniques
1985 - ACM SIGGRAPH | ACM SIGGRAPH Computer Graphics
Niranjan Damera-Venkata, Nelson L. Chang,
... via the superimposition of multiple image subframes. Conventional anti-aliasing and texture mapping techniques are shown inadequate for ... quality images on supersampled displays. Instead of requiring anti-aliasing filters, supersampled displays actually require alias generation filters ...
Tópico(s): Image and Signal Denoising Methods
2009 - Association for Computing Machinery | ACM Transactions on Graphics
Mark Yeary, Norman C. Griswold,
... to the traditional active RC or passive RLC anti-aliasing filter. This all-digital filter will reside directly ... designed to relax the requirements of an analog anti-aliasing filter, this filter will track a signal in ...
Tópico(s): Power Line Communications and Noise
2002 - Institute of Electrical and Electronics Engineers | IEEE Transactions on Instrumentation and Measurement
... transform (DWT) are explained in detail. Also, an anti-aliasing algorithm for DWT is presented. Both the canonical ...
Tópico(s): Ultrasonics and Acoustic Wave Propagation
2003 - Elsevier BV | Mechanical Systems and Signal Processing
Anthony Vetro, Sehoon Yea, Matthias Zwicker, Wojciech Matusik, Hanspeter Pfister,
... video in compressed form. We then present an anti-aliasing filtering technique that effectively eliminates ghosting artifacts when ... of multiview video coding and suggest a combined anti-aliasing and scalable decoding scheme to minimize decoding resources ...
Tópico(s): Advanced Optical Imaging Technologies
2007 - Institute of Electrical and Electronics Engineers | Proceedings - International Conference on Image Processing
Jaime Castelló, J.M. Espı́, Rafael García-Gil,
... to delays on the acquisitions, so when such anti-aliasing filters are used a reduction of stability margins ... grid-connected inverter with LCL filter, using different anti-aliasing filters, obtaining in all cases, better results than ...
Tópico(s): Advanced DC-DC Converters
2015 - Institute of Electrical and Electronics Engineers | IEEE Transactions on Industrial Electronics
Lin Xiong, Guoquan Wang, Paul Wessel,
... for this study. The core idea of the anti-aliasing procedure is to apply a low-pass spatial ... Generic Mapping Tools (GMT) software package as an anti-aliasing filter. The filter can be applied as an ...
Tópico(s): Remote Sensing in Agriculture
2016 - Elsevier BV | Computers & Geosciences
Kai-Mikael Jää-Aro, Lars Kjelldahl,
... Our results indicate: (1) For good distance judgments, anti-aliasing is more important than stereo. In fact, stereo ... even be detrimental in low resolution images. (2) Anti-aliasing works well as a resolution-enhancer. (3) The fuzziness of the LCD HMD screens gives an anti-aliasing effect, partially offsetting the low resolution. (4) Subjects ...
Tópico(s): Advanced Optical Imaging Technologies
1997 - SPIE | Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE
Anti-aliasing is a technique for improving spatial resolution at the cost of luminance resolution. Dithering is a ... in the 'Freiburg Visual Acuity Test': by employing anti-aliasing, spatial resolution was improved. Thus, even the shape ...
Tópico(s): Urban Heat Island Mitigation
1997 - Brill | Spatial Vision