Digital video quality vision models and metrics phần 8 potx
Digital Video Quality Vision Models and Metrics potx
... Stefan. Digital video quality : vision models and metrics / Stefan Winkler.p. cm.Includes bibliographical references and index.ISBN 0-470-02404-61. Digital video. 2. Image processing Digital ... is necessary to build computational models of the HVS and integratethem in tools for perceptual quality assessment. Digital Video Quality - Vision Models and Metrics Stefan Winkler# 2005 John ... 1/f.30 VISION Simpo PDF Merge and Split Unregistered Version - http://www.simpopdf.com Simpo PDF Merge and Split Unregistered Version - http://www.simpopdf.com Digital Video Quality Vision Models...
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digital video quality vision models and metrics
... to hybrid standards such as D2-MAC (analog video, digital sound) and delayed the introduction of 100 % digital video. However, the very rapid progress made in compression techniques and IC technology ... algorithms and modulation schemes, which are explained inChapters 6 and 7.We will now examine the principles and various steps of video and audio compression which allow these bit-rates (and in ... standards for broadcasting digital pictures to the consumer, and the solutions chosen for the EuropeanDVB system (Digital Video Broadcasting) based on the internationalMPEG-2 compression standard.The...
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MANAGING PROJECTS IN HUMAN RESOURCES, TRAINING AND DEVELOPMENT PHẦN 8 potx
... the team and contribute tokeeping morale high.166 Managing projects in human resources when the team must break up. Planning for and anticipating the end rightfrom the beginning can bring significant ... Tuckman and Jensen, 1977) are:࿖Forming – where the members of the team meet each other and begin tomake relationships.1 48 Managing projects in human resources 13 Managing people and performancePerformance ... that change and develop, and canbe prepared to intervene if necessary.156 Managing projects in human resources This page intentionally left blank MANAGING YOURSELFAlthough managers and leaders...
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The Best-Practice Guide to xHTML and CSS phần 8 potx
... href The target of the link. charset The character set of the target of the link. hreflang The language of the target of the link. type The MIME type of the target of the link. rel The relationship ... relationship of the target of the link to the current page. Some uni-versally understood values are shortcut icon and stylesheet. rev The relationship of the current page to the target of the link.ãããããããã ... referenced and processed by the object. value The value of the parameter. The values of the name and value attributes are completely dependent on the object. All that param elements do is tell the...
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Multiresolution Signal Decomposition Transforms, Subbands, and Wavelets phần 8 potx
... DCT. The signal used in Fig. 5. 28( b) is the narrow-bandGaussian signal Si plus time-localized white Gaussian noise $2 with 10% dutycycle and power ratio (81 /82 ) = —8dB. Basically, ... Expansion and Degrees of Freedom of a Signal, " Proc, IEEE, Vol. 68, pp. 5 38- 539, 1 980 .R. B. Blacknian and J. W. Tukey, The Measurement of Power Spectra. Dover,19 58. B. ... onTime-Frequency and Time-Scale Analysis, pp. 385 - 388 , Oct. 19 98. J. Horng and R. A. Haddad, "Block Transform Packets - An Efficient Approachto Time-Frequency Decomposition& quot;,...
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Digital video quality vision models and metrics phần 10 pps
... 19compression 36artifacts 42lossy 36standards 39 video 38cones 11consistency 65contrastband-limited 72isotropic 72 Digital Video Quality - Vision Models and Metrics Stefan Winkler# 2005 John ... 50 video coding 36compression 36, 38interlaced 38, 47progressive 38, 47 quality 35 Video Quality Experts Group(VQEG) 66, 108 viewing conditions 50, 51viewing distance 48 vision 6 vision models ... perceptualimage quality. In Proc. SPIE Human Vision, Visual Processing and Digital Display,vol. 107 7, pp. 209–216, Los Angeles, CA.Roufs, J. A. J. (1992). Perceptual image quality: Concept and measurement....
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Digital video quality vision models and metrics phần 1 pot
... Digital Video Quality 5.2 Video 10 85.2 .1 Test Sequences 10 85.2.2 Subjective Experiments 10 95.2.3 Prediction Performance 11 15.2.4 Discussion 11 55.3 Component Analysis 11 75.3 .1 Dissecting ... Attributes 14 56.4 Summary 14 87 Closing Remarks 14 97 .1 Summary 14 97.2 Perspectives 15 1Appendix: Color Space Conversions 15 5References 15 7Index 17 1CONTENTS vii 3 Video Quality 353 .1 Video ... Experts Groupxiv ACRONYMS Digital Video Quality Vision Models and Metrics Stefan WinklerGenista Corporation, Montreux, Switzerland Digital Video Quality Vision Models and Metrics Stefan WinklerGenista...
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Digital video quality vision models and metrics phần 2 pdf
... contrast(Michelson, 1 927 ):CMẳLmax LminLmaxỵ Lmin; 2: 3ịwhere Lmin and Lmaxare the luminance extrema of the pattern. Figure 2. 12, the so-called Campbell–Robson chart{(Campbell and Robson, ... 17 mm for the eye,–15 –10 –5 0 5 10 15 20 0 20 406080100 120 140160180 20 0Eccentricity [mm]Receptors [1000/mm 2 ]ConesRodsOptic discFigure 2. 6 The distribution of photoreceptors on ... maximumvisual acuity, and the arrangements of the mosaic of the S-cones as well asthe L- and M-cones can be understood as a consequence of the opticallimitations (and vice versa). 2. 2 .2 Retinal NeuronsThe...
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Digital video quality vision models and metrics phần 3 potx
... of visual quality metrics, from simple pixel-based metrics such as MSE and PSNR to advanced vision- based metrics proposed in recentyears. Digital Video Quality - Vision Models and Metrics Stefan ... contours and edges.ARTIFACTS 43 3. 1 VIDEO CODING AND COMPRESSIONVisual data in general and video in particular require large amounts ofbandwidth and storage space. Uncompressed video at TV-resolution ... arequantized and variable-length coded.Figure 3. 2 Elements of an MPEG-2 video sequence (from S. Winkler et al. (2001), Vision and video: Models and applications, in C. J. van den Branden Lambrecht...
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Digital video quality vision models and metrics phần 4 ppsx
... quality ratings. The CVQE is one of the few vision- model based video quality metrics designed for and tested with low bitrate video. 3 .4. 4 Specialized Metrics Metrics based on multi-channel vision ... (from S. Winkler et al. (2001), Vision and video: Models and applications, in C. J. van den Branden Lambrecht (ed.), Vision Models and Applications toImage and Video Processing, chap. 10, Kluwer ... (from S. Winkler et al. (2001), Vision and video: Models and applications, in C. J. van den Branden Lambrecht (ed.), Vision Models and Applications to Image and Video Processing, chap. 10, KluwerAcademic...
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Digital video quality vision models and metrics phần 5 doc
... (from S.Winkler et al. (2001), Vision and video: Models and applications, in C. J. van den Branden Lambrecht (ed.), Vision Models and Applications to Image and Video Processing, chap. 10, Kluwer ... motion energy and combinations thereof.3 .5. 3 Video Quality Experts GroupThe most ambitious performance evaluation of video quality metrics to datewas undertaken by the Video Quality Experts ... sequences and subjective experiments are described in moredetail in sections 5. 2.1 and 5. 2.2.The proponents of video quality metrics in this first phase were CPqD(Brazil), EPFL (Switzerland),{KDD...
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Digital video quality vision models and metrics phần 6 doc
... Lambrecht and Farrell (19 96) . Digital Video Quality - Vision Models and Metrics Stefan Winkler# 2005 John Wiley & Sons, Ltd ISBN: 0-470-02404 -6 The impulse responses of the IIR and FIR filters ... singlesub-band, whose actual frequency response is plotted (b) (from S. Winkler et al. (2001), Vision and video: Models and applications, in C. J. van den Branden Lambrecht (ed.), Vision Models and ... component video Y0C0BC0Rto opponent colorspace.84 MODELS AND METRICS the amount of aliasing in the sub-bands. In the present implementation, the basisfilters have octave bandwidth and octave...
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Digital video quality vision models and metrics phần 7 pps
... (from S. Winkler et al. (2001), Vision and video: Models and applications, in C. J. van den Branden Lambrecht (ed.), Vision Models and Applications to Image and Video Processing, chap. 10, Kluwer ... the spatio-temporal mechanisms in the visual system. As discussed in0 .7 0 .75 0.8 0.85 0.90 .73 0 .74 0 .75 0 .76 0 .77 0 .78 0 .79 0.80.81Pearson linear correlationSpearman rank-order correlationPSNRYYCBCRW-BWB/RG/BYL*L*u*v*L*a*b*betterFigure ... in0 1 2 3 4 5 60 .78 0 .79 0.80.810.820.830.840.850.86Minkowski summation exponentCorrelationPearson SpearmanPearson Spearman0 20 40 60 80 1000 .7 0 .72 0 .74 0 .76 0 .78 0.80.820.840.86Histogram...
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Digital video quality vision models and metrics phần 8 potx
... require more specific quality indicators than an overallrating or a visual distortion map. For instance, it can be useful to assess the Digital Video Quality - Vision Models and Metrics Stefan Winkler# ... sharpẳRsharp~RRsharp and colorẳ Rcolor~RRcolormay be combined with the HVS-136 METRIC EXTENSIONS 1234567 8 1234567 8 1234567 8 1234567 8 1234567 8 1234567 8 1234567 8 1234567 8 1234567 8 010203040506070 80 Scene ... 1234567 8 1234567 8 1234567 8 1234567 8 1234567 8 1234567 8 1234567 8 1234567 8 1234567 8 010203040506070 80 Scene 1Scene 2Scene 3Scene 4Scene 5Scene 6Scene 7Scene 8 Scene 9ConditionDMOS1234567 8 91234567 8 91234567 8 91234567 8 91234567 8 91234567 8 91234567 8 91234567 8 9010203040506070 80 Condition...
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Digital video quality vision models and metrics phần 9 ppsx
... Klassen, R. V. ( 199 8). A comparison of two image quality models. InProc. SPIE Human Vision and Electronic Imaging, vol. 3 299 , pp. 98 –1 09, San Jose, CA.Liang, J., Westheimer, G. ( 199 5). Optical ... parameters (Boynton and Foley, 199 9; Foley and Chen, 199 9). Watson et al. (2001) incorporated certain aspects of temporalnoise sensitivity and temporal masking into a video quality metric. Contrast ... the fundamentals of digital imaging systems. Image and video coding standards already exploit certain properties of the human visual Digital Video Quality - Vision Models and Metrics Stefan Winkler#...
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