digital video quality vision models and metrics

... necessary to build computational models of the HVS and integrate them in tools for perceptual quality assessment Digital Video Quality - Vision Models and Metrics Stefan Winkler # ... need for accurate vision models and quality metrics has been increasing as the borderline between analog and digital processing of visual information... human vision for the design ... models The purpose of this book is to provide an introduction to vision modeling in the framework of video quality assessment We will discuss the design of models and metrics and

Ngày tải lên: 14/08/2014, 12:21

... [...]... simple pixel-based metrics such as MSE and PSNR to advanced vision- based metrics proposed in recent years Digital Video Quality - Vision Models and Metrics Stefan Winkler ... 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 ... 0-470-02404-6 36 VIDEO QUALITY 3. 1 VIDEO CODING AND COMPRESSION Visual data in general and video in particular require large amounts of bandwidth and storage space Uncompressed video at

Ngày tải lên: 14/08/2014, 12:21

... subjective testing. With these facts in mind, we will now study vision models for quality metrics. 70 VIDEO QUALITY 4 Models and Metrics A theory has only the alternative of being right or wrong. ... motion energy and combinations thereof. 3.5.3 Video Quality Experts Group The most ambitious performance evaluation of video quality metrics to date was undertaken by the Video Quality Experts ... general-purpose metrics of visual quality and have applications in many other fields of image processing. This chapter presents two concrete examples of vision models and quality metrics. First,

Ngày tải lên: 14/08/2014, 12:21

... sub-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 ... still images was generously provided by van den Branden Lambrecht and Farrell (19 96) Digital Video Quality - Vision Models and Metrics Stefan Winkler # 2005 John Wiley & Sons, ... sustained and transient mechanisms of vision (dotted) for a sampling frequency of 50 Hz. 88 MODELS AND METRICS The impulse responses of the IIR and FIR filters are shown in Figures 4.9(b) and 4.10(b),

Ngày tải lên: 14/08/2014, 12:21

... (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 ... 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 ... aliasing in the sub-bands In the PDM, the basis filters have octave bandwidth and octave spacing; five sub-band levels with four orientation bands each plus one low-pass band are computed in each

Ngày tải lên: 14/08/2014, 12:21

... require more specific quality indicators than an overall rating or a visual distortion map. For instance, it can be useful to assess the Digital Video Quality - Vision Models and Metrics Stefan Winkler ... (Lindh and van den Branden Lambrecht, 1996) and the PDM (see section 4.2), a perceptual blocking distortion metric (PBDM) for digital video is proposed (Yu et al., 2002). The underlying vision ... these different types of artifacts and to determine their influence on the overall quality degradation. Due to the popularity of the MPEG standard in digital video compression (see section 3.1.4),

Ngày tải lên: 14/08/2014, 12:21

... 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 ... of quality of service of digital TV broadcasting In MOSAIC Handbook, pp 1 59 163 ANSI T1.801.01 ( 199 5) Digital transport of video teleconferencing /video telephony signals – video ... natural scenes In Proc SPIE Human Vision, Visual Processing and Digital Display,... F E ( 199 9) The influence of video quality on perceived audio quality and vice versa Journal of the

Ngày tải lên: 14/08/2014, 12:21

... and Gas and Mobility Power and Gas provides utilities, independent power gen- erators, plant builders and industrial customers such as the oil and gas industry with a wide range of products and ... generation and the reliable transportation of oil and gas using fossil and renewable fuels Mobility offers efficient, safe and environmentally friendly transport for passengers and goods by rail and ... transparency and market fragmentation • Decreasing market entry and switching barriers • Digitalization of products and services • Rapid product and service developments • High innovativeness and innovation

Ngày tải lên: 06/05/2024, 17:07

... stakeholders and consumers. DVB standards cover all aspects of digital television from transmission through interfacing, conditional access and interactivity for digital video, audio and data. ... TS 101 162: "Digital Video Broadcasting (DVB); Allocation of identifiers and codes for Digital Video Broadcasting (DVB) systems". [2] ETSI TS 102 992: "Digital Video Broadcasting ... (2011-11) Digital Video Broadcasting (DVB); Frame structure channel coding and modulation for a second generation digital terrestrial television broadcasting system (DVB-T2) European Standard

Ngày tải lên: 20/05/2015, 20:55

... Bit streamDCT Q (quantization)VLC IQ IDCT MCP Video In Hình 6.1 Mã hóa & giải mã MPEG2 tín hiệu video VLC IQ IDCT IQ Bit stream Video Out Quantized DCT 1 block 8x8 (DCT VLC) Macro ... được phát triển bởi poineer đây là đĩa được phát triển từ digital LD ( laser digital ) Sau 1 thời gian, pioneer hợp tác với Toshiba ⇒ digital SD, loại đĩa này sử dụng tia red laser có khả năng ... tín hiệu Video Bài giảng thiết bị đầu cuối viễn thông Th.S Trần Viết Thắng, chủ biên; Ths. Võ Đình Tùng 93 Trong đó: x,y : là... từ digital LD ( laser digital

Ngày tải lên: 08/10/2012, 16:36

... health-related quality-of-life and medication satisfaction for children with attention-deficit/hyperactivity disorder? Oscar G Bukstein*1, L Eugene Arnold2, Jeanne M Landgraf3 and Paul Hodgkins4 ... 7.0 Reported AEs were monitored and recorded throughout the study and for 30 Page of 12 (page number not for citation purposes) Child and Adolescent Psychiatry and Mental Health 2009, 3:39 days ... (Concerta, Ritalin LA, and Metadate CD), age (6-9 year olds and 1012 year olds), and gender Scores for the AIM-C Child Impact Scale, Family Impact Scale, Medication Tension/Worry Scale, and MissedDoses

Ngày tải lên: 25/10/2012, 10:06

... invited to join the tribe and help to co-create the evolving story. Believe Me: Why Your Vision, Brand, and Leadership Need a Bigger Story Believe Me why your vision, brand and leadership need a ... level, and delivers keynotes and learning programs to clients around the globe. www.getstoried.com 2608057809849 ISBN 978-0-9842608-0-5 51795 > Believe Me * * why your vision , brand , and leadership ... social innovation and cultural anthropology, Michael has been featured in Fast Company, Brandweek, and Story- telling Magazine. As the President of Get Storied, Michael teaches brand storytelling

Ngày tải lên: 19/10/2013, 19:21

... watermark DATA STREAMS: MODELS AND ALGORITHMS with the high-level data mining process, and discovers data evolution regularities as well Our analysis and experiments demonstrate ... of dimensionality reduction and forecasting and particularly important When there are a large number of simultaneous data stream,... develop an efficient and effective approach for mining ... watermark 6 DATA STREAMS: MODELS AND ALGORITHMS the chapter presents the SPIRIT algorithm, which explores the relationship between dimensionality reduction and forecasting in data streams

Ngày tải lên: 08/11/2013, 02:15

... thuật số (Digital Video Transport System – DVTS) : Hệ thống đơn giản Kinh phí thấp Dễ sử dụng ( khơng cần đào tạo nhân lực) 1.2 Digital Video Transport System 1.2.1 Khái niệm Digital Video Transport ... client, lưu trữ video sreaming video Ngoài tạo ứng dụng Client có tên LHDVTS viết ngơn ngữ Mxml + ActionScript thực cơng việc truyền, hiển thị hình ảnh, âm nhận từ server, chat xem lại video Nghiên ... vị trang bị cho riêng Từ khó khăn trang thiết bị nêu trên, đưa giải pháp xây dựng hệ thống Digital Video Transport System(DVTS) truyền hình ảnh, âm chất lượng cao với mục tiêu sau: - Chạy mạng

Ngày tải lên: 10/12/2013, 18:19

... be satisfied by using existing data mining models and algorithms... dynamically, and changing rapidly Due to limited resources available and the usual requirements of fast response, ... reversed and the data stream arrived in reverse order, starting at t ht and ending at t Examples of the forward and reverse density profiles are illustrated in Figures 5.1 and 5.2 respectively ... 17, 18, 16]), and efficient stream data querying, counting, clustering and classification... which the data is being reduced, those at which the data is increasing, and those from

Ngày tải lên: 15/12/2013, 13:15

... on-line analytical processing and mining in data cubes, and management and mining o stream data We briefly review previous f research in these areas and point out the differences ... warehousing and OLAP, much progress has been made on the efficient support of standard and advanced OLAP queries in data cubes, including selective materialization ([21]), cube... processing and ... sparse or dense part beforehand, which does not fit the single-scan and dynamic nature of data streams Recently, there have been intensive studies on the management and querying of stream

Ngày tải lên: 15/12/2013, 13:15

... ComputationModel and Results 4 163 References and Related Work The EH technique, that we demonstrate through solutions to the BASICCOUNTING SUM and problem, is by Datar, Gionis, Indyk and Motwani ... STREAMS: MODELS AND ALGORITHMS PROBLEM0.2 ( S U M ) Given a stream of data elements that are... Principles ofDatabase Systems, pages 286-296, June 2004 [3] B Babcock, M Datar, and R Motwani ... Garofolakis,Johannes Gehrhz and Rajeev Rastogi, published by Springer- Verlag lease purchase PDF Split-Merge on www.verypdf.com to remove this watermark 150 DATA STREAMS: MODELS AND ALGORITHMS

Ngày tải lên: 15/12/2013, 13:15

... Stefan. Digital video quality : vision models and metrics / Stefan Winkler. p. cm. Includes bibliographical references and index. ISBN 0-470-02404-6 1. Digital video. 2. Image processing Digital ... is necessary to build computational models of the HVS and integrate them 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 and...

Ngày tải lên: 27/06/2014, 14:20

... 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 in Chapters 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 European DVB system (Digital Video Broadcasting) based on the international MPEG-2 compression standard. The...

Ngày tải lên: 03/07/2014, 16:06