Academic literature on the topic 'Blockiness'

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Journal articles on the topic "Blockiness"

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Tan, K. T., and M. Ghanbari. "Blockiness detection for MPEG2-coded video." IEEE Signal Processing Letters 7, no. 8 (2000): 213–15. http://dx.doi.org/10.1109/97.855443.

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Zhai, Guangtao, Wenjun Zhang, Xiaokang Yang, Weisi Lin, and Yi Xu. "No-reference noticeable blockiness estimation in images." Signal Processing: Image Communication 23, no. 6 (2008): 417–32. http://dx.doi.org/10.1016/j.image.2008.04.007.

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Rumyantsev, Artem M., Albert Johner, and Juan J. de Pablo. "Sequence Blockiness Controls the Structure of Polyampholyte Necklaces." ACS Macro Letters 10, no. 8 (2021): 1048–54. http://dx.doi.org/10.1021/acsmacrolett.1c00318.

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Ibrar-ul-Haque, Muhammad, Muhammad Tahir Qadri, Najeeb Siddiqui, and Talat Altaf. "Combined Blockiness, Blurriness and White Noise Distortion Meter." Wireless Personal Communications 103, no. 3 (2018): 1927–39. http://dx.doi.org/10.1007/s11277-018-5888-x.

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Pillai, Prasanth KS, Yulinglong Ouyang, Andrea K. Stone, and Michael T. Nickerson. "Effect of different levels of esterification and blockiness of pectin on the functional behaviour of pea protein isolate–pectin complexes." Food Science and Technology International 27, no. 1 (2020): 3–12. http://dx.doi.org/10.1177/1082013220924888.

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This research examines changes to the functional (solubility, emulsifying and foaming) properties of pea protein isolate when complexed with commercial citrus pectin of different structural attributes. Specifically, a high methoxy (P90; degree of esterification: 90.0%; degree of blockiness: 64.5%; galacturonic acid content 11.4%) and low methoxy (P29; degree of esterification: 28.6%; degree of blockiness: 31.1%; galacturonic acid: 70%) pectin at their optimum mixing ratios with pea protein isolate (4:1 pea protein isolate to P90; 10:1 pea protein isolate to P29) were assessed at the pHs associ
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Meesters, Lydia, and Jean-Bernard Martens. "A single-ended blockiness measure for JPEG-coded images." Signal Processing 82, no. 3 (2002): 369–87. http://dx.doi.org/10.1016/s0165-1684(01)00177-3.

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Punchihewa, Amal, Donald G. Bailey, and Robert M. Hodgson. "Benchmarking image codecs by assessment of coded test images: the development of test images and new objective quality metrics." Journal of Telecommunications and Information Technology, no. 1 (March 30, 2006): 11–16. http://dx.doi.org/10.26636/jtit.2006.1.363.

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Objective quality measures are required for benchmarking codec performance. Our aim was to develop a simple, accurate method capable of rapidly measuring the degree of blockiness, edge-blur and ringing due to image compression. Two test images were designed to emphasise these artefacts. The efficacy of the new metrics is demonstrated using a JPEG codec at a range of compression levels.
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Shcherbakov, Petro, Svitlana Tymchenko, Marat Bitimbayev, Nurzhigit Sarybayev, and Serik Moldabayev. "Mathematical model to optimize drilling-and-blasting operations in the process of open-pit hard rock mining." Mining of Mineral Deposits 15, no. 2 (2021): 25–34. http://dx.doi.org/10.33271/mining15.02.025.

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Purpose is to determine a function of the reduced expenditures connected with drilling-and-blasting operations, loading and hauling operations, and rock fragmentation depending upon the cost of machine-shift of the applied facility, its operation modes, hardness of rock being blasted, cost of the used explosive, and rock fragmentation quality based upon the developed optimization mathematical model. Methods. Method of statistical evaluation of natural blockiness structure of the rock as well as quality of its fragmentation by means of explosive energy has been applied. Statistical studies have
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Dickinson, L. Charles, R. A. Weiss, and Gary E. Wnek. "NMR Characterization of Sulfonation Blockiness in Copoly(styrene−sulfonated styrene)." Macromolecules 34, no. 9 (2001): 3108–10. http://dx.doi.org/10.1021/ma0016275.

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Tang, Chaoying, and Biao Wang. "A No-Reference Adaptive Blockiness Measure for JPEG Compressed Images." PLOS ONE 11, no. 11 (2016): e0165664. http://dx.doi.org/10.1371/journal.pone.0165664.

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Dissertations / Theses on the topic "Blockiness"

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Qadri, Muhammad Tahir. "Blockiness and blurriness measurement for video quality assessment." Thesis, University of Essex, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.574461.

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Rapid growth of wired and wireless multi-media data challenges the researchers to develop an efficient objective assessment meter to estimate their quality. This research is focused to design objective quality assessment meters for images and video sequences. In this work, we proposed blockiness and blurriness distortion meters using full, reduced and no reference approaches. Both blockiness and blurriness distortions are calculated using frequency domain analysis. Since blockiness is an abrupt luminance change at DCT block boundaries which is also periodic therefore it generates harmonics in
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CORCHS, SILVIA ELENA. "Image quality assessment for Digital documents." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2014. http://hdl.handle.net/10281/50461.

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This thesis focuses on No Reference (NR) methods for Image Quality Assessment (IQA). A review of the IQA field is presented in Chapter 2; where the different IQA methods are described and classified. In particular, the application of IQA methods within a workflow chain is discussed. In Chapter 3 we focus on NR metrics for JPEG-blockiness and noise artifacts. It is in general assumed that subjective methods produce an actual estimate of the perceived quality while objective methods produce values that should be correlated with human perceptions as best as possible. From the analysis of th
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Noble, Kristen Felice. "Tailored Chain Sequences of Brominated Syndiotactic Polystyrene Copolymers via Post-Polymerization Functionalization in the Heterogeneous Gel State." Diss., Virginia Tech, 2019. http://hdl.handle.net/10919/93515.

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This dissertation demonstrates the preparation of blocky brominated syndiotactic polystyrene (sPS-co-sPS-Br) copolymers with tailored chain sequences using a simple, post-polymerization functionalization method conducted in the heterogeneous gel state, and investigates the effect of sPS reaction state and sPS/solvent gel morphology on the copolymer microstructure and thermal properties. Gel-state (Blocky) brominated copolymers were prepared from a 10 w/v% sPS/carbon tetrachloride (CCl4) gel and a 10 w/v% sPS/chloroform (CHCl3) gel in a matched set containing 6−32 mol% p-bromostyrene (Br-Sty) u
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MARINI, FABRIZIO. "Content based no-reference image quality metrics." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2012. http://hdl.handle.net/10281/29794.

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Images are playing a more and more important role in sharing, expressing, mining and exchanging information in our daily lives. Now we can all easily capture and share images anywhere and anytime. Since digital images are subject to a wide variety of distortions during acquisition, processing, compression, storage, transmission and reproduction; it becomes necessary to assess the Image Quality. In this thesis, starting from an organized overview of available Image Quality Assessment methods, some original contributions in the framework of No-reference image quality metrics are described.
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Abate, Leonardo. "Detection and measurement of artefacts in digital video frames." Doctoral thesis, Università degli studi di Trieste, 2012. http://hdl.handle.net/10077/7414.

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2010/2011<br>This work presents original algorithms for the measurement of artefacts impairing the quality of digital video sequences. The intended use of these algorithms is the control of the restoration processes performed on the video in advanced monitors for costumer applications. The problem of the artefact measurement at this stage of the processing chain di ffer from the assessment of quality performed in other applications. Quality assessment aimed to the improvement of the encoding operation, for example, can be done using the original sequence for comparison, and based on the pixel
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Giotis, Anna-Maria. "Hindrad av en tanke : En studie av mentala blockeringar inom kvinnlig truppgymnastik." Thesis, Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:gih:diva-283.

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<p>Syfte och frågeställningar</p><p>Syftet med studien är att undersöka förekomst, hantering och upplevda orsaker till mentala blockeringar inom kvinnlig truppgymnastik på nationell ungdoms- och juniornivå.</p><p>• Vilken typ av övning är den vanligaste mentala blockeringen inom kvinnlig truppgymnastik?</p><p>• Hur visar sig blockeringarna enligt gymnasterna och tränarna?</p><p>• Vilka orsaker till uppkomsten av mentala blockeringar kan utläsas utifrån gymnasterna och tränarnas berättelser?</p><p>• På vilka sätt har gymnaster och tränare försökt hantera mentala blockeringar?</p><p>Metod</p><p>
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Ming-Jung, Hsu, and 許明榕. "Dynamic Prioritized Statistical Multiplexing of Real-Time Services on Packet Networks with Call Blockings." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/54369673817624893746.

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碩士<br>國立臺灣科技大學<br>電機工程技術研究所<br>85<br>The interaction of congestion control and prioritized statistical multiplexing for real-time services (e.g., voice and video) in cell-based networks (e.g., B-ISDN based on ATM) with call blockings is studied. Focus on a bufferless mu-ltiplexer supporting real-time ON-OFF sources. Real-time source information is divided into two streams, low- and high-priority streams, in accordance with importance. Favored transport is given to high-priority stream resulting in s-ignificantly better QoS than unprioritized system. Two prioritization schemes are considered. I
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Sousa, Pedro M. "Northern hemisphere blockings and their impacts over the european continent : historical overview and associated mechanisms." Doctoral thesis, 2017. http://hdl.handle.net/10451/30169.

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Tese de doutoramento, Ciências Geofísicas e da Geoinformação (Meteorologia), Universidade de Lisboa, Faculdade de Ciências, 2017<br>Blocking high pressure systems are large-scale atmospheric circulation patterns with meteorological impacts that vary across regions and seasons, depending on the blocking location, spatial characteristics and temporal length. While blocking episodes are an important component of intra-seasonal and inter-annual variability at mid-latitudes, particularly in Europe, previous studies have mostly focused on characterizing European blocking impacts on either winter or
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Book chapters on the topic "Blockiness"

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Chen, Chunhua, and Jeffrey A. Bloom. "A Blind Reference-Free Blockiness Measure." In Advances in Multimedia Information Processing - PCM 2010. Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-15702-8_11.

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Hasan, Md Mehedi, Kiok Ahn, and Oksam Chae. "Measuring Blockiness of Videos Using Edge Enhancement Filtering." In Communications in Computer and Information Science. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-27183-0_2.

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Amir-Ebrahimi, V., J. G. Hamilton, and J. J. Rooney. "Blockiness and Tacticity in Ring-Opened Metathesis Polymers." In Ring Opening Metathesis Polymerisation and Related Chemistry. Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-010-0373-5_4.

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Wang, Wei, Yuanlin Zheng, Kaiyang Liao, Li Liu, and Zhisen Tang. "A Novel Blind JPEG Image Quality Assessment Based on Blockiness and the Low Frequency Feature in DCT Domain." In Lecture Notes in Electrical Engineering. Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-7629-9_21.

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Danilov, Vladimir I., and Alexander I. Sotskov. "Cores and Stable Blockings." In Social Choice Mechanisms. Springer Berlin Heidelberg, 2002. http://dx.doi.org/10.1007/978-3-540-24805-7_5.

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Heuer, Herbert. "Finger Fatigue: Blockings and Approximate Kinematic Invariances." In Industrial Engineering and Ergonomics. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-01293-8_45.

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Ben Asher, Yosi, Omer Boehm, Daniel Citron, et al. "Aggressive Function Inlining: Preventing Loop Blockings in the Instruction Cache." In High Performance Embedded Architectures and Compilers. Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-77560-7_26.

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Kholoptsev, A. V., and Zh K. Naurozbayeva. "Estimates of the Periodicity of Atmospheric Blockings Over Kazakhstan in the Spring–Summer Time According to Era 5 Reanalysis Data." In Springer Proceedings in Earth and Environmental Sciences. Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-25962-3_2.

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Malarvel, Muthukumaran, and Sivakumar S. "A Performance Study of Image Quality Attributes on Smoothened Image Obtained by Anisotropic Diffusion-Based Models." In Examining Fractal Image Processing and Analysis. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-7998-0066-8.ch005.

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Image acquisition systems usually acquire images with distortions due to various factors associated with digitization processes. Poisson is one of the common types of noises present in the image, and it distorts the fine features. Hence, it is necessary to denoise the noisy image by smoothing it to extract the features with fine details. Among the denoising methods, anisotropic diffusion method provides more adequate results. In this chapter, the authors dealt with existing models such as Perona-Malik (PM), total variation, Tsai, Chao, Chao TFT, difference eigen value PM, adaptive PM, modified
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"The security of the access route and its blockings." In Tomb Security in Ancient Egypt from the Predynastic to the Pyramid Age. Archaeopress Publishing Ltd, 2016. http://dx.doi.org/10.2307/j.ctv17db2ng.11.

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Conference papers on the topic "Blockiness"

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Meesters, Lydia, and Jean-Bernard Martens. "Blockiness in JPEG-coded images." In Electronic Imaging '99, edited by Bernice E. Rogowitz and Thrasyvoulos N. Pappas. SPIE, 1999. http://dx.doi.org/10.1117/12.348446.

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Liu, Hantao, and Ingrid Heynderickx. "A no-reference perceptual blockiness metric." In ICASSP 2008 - 2008 IEEE International Conference on Acoustics, Speech and Signal Processing. IEEE, 2008. http://dx.doi.org/10.1109/icassp.2008.4517747.

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Zhou, Qinggang, Chris Basoglu, and Woobin Lee. "Blocking artifact removal based on blockiness estimation." In Electronic Imaging, edited by Bhaskaran Vasudev, T. Russell Hsing, Andrew G. Tescher, and Robert L. Stevenson. SPIE, 2000. http://dx.doi.org/10.1117/12.383014.

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Perra, C., F. Massidda, and D. D. Giusto. "Image blockiness evaluation based on Sobel operator." In 2005 International Conference on Image Processing. IEEE, 2005. http://dx.doi.org/10.1109/icip.2005.1529769.

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Xiangyu Lin, Hanjie Ma, Wei Jiang, and Yaowu Chen. "A no-reference blockiness metric for videoconference." In 2011 International Conference on Multimedia Technology (ICMT). IEEE, 2011. http://dx.doi.org/10.1109/icmt.2011.6001654.

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Qadri, M. T., K. T. Tan, and M. Ghanbari. "Frequency domain blockiness measurement for image quality assessment." In 2010 2nd International Conference on Computer Technology and Development (ICCTD). IEEE, 2010. http://dx.doi.org/10.1109/icctd.2010.5645871.

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Hua, Zhang, Zhou Yiran, and Tian Xiang. "A Weighted Sobel Operator-Based No-Reference Blockiness Metric." In 2008 Pacific-Asia Workshop on Computational Intelligence and Industrial Application (PACIIA). IEEE, 2008. http://dx.doi.org/10.1109/paciia.2008.169.

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Ozansoy, Koray, Nuri Ozer, Faruk Donmez, and H. Fatih Ugurdag. "A new method for no-reference image Blockiness measurement." In 2014 22nd Signal Processing and Communications Applications Conference (SIU). IEEE, 2014. http://dx.doi.org/10.1109/siu.2014.6830679.

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Xu Zheng, Bo Yang, Yawen Liu, and Guangjian Shi. "Blockiness evaluation for reducing blocking artifacts in compressed images." In 2009 Digest of Technical Papers International Conference on Consumer Electronics (ICCE). IEEE, 2009. http://dx.doi.org/10.1109/icce.2009.5012286.

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Deng, Yi, Qinmin Yang, Jiangang Lu, Ning Liu, Yongfeng Qiao, and Youxian Sun. "A hybrid no-reference blockiness metric for H.264 standard." In 2013 10th IEEE International Conference on Control and Automation (ICCA). IEEE, 2013. http://dx.doi.org/10.1109/icca.2013.6565053.

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