IVP Subjective Quality Video Database

Author: Chinese University of Hong Kong

Partner: No

Contact: Dr. Fan ZHANG (fzhang@ee.cuhk.edu.hk) Mr. Songnan LI (snli@ee.cuhk.edu.hk) Mr. Lin MA (lma@ee.cuhk.edu.hk) Mr. Yuk Chung WONG (ycwong@ee.cuhk.edu.hk) Dr. King Ngi NGAN (knngan@ee.cuhk.edu.hk)

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Subjective scores: true

Total: 128

SRC: 10

HRC: 3

Ratings: 42

Resolution: HD (1920x1080)

Method: ACR

Description

Ten uncompressed, high definition (1920×1088) videos are used as source videos. One video which contains animations were rendered directly from 3D models, while other videos which contains natural scenes were shot with professional, high end equipment and converted to digital format with utmost care. The videos shot by us were recorded in a progressive RAW format at 25 fps without any compression. Distorted sequences are generated using 4 types of distortions: MPEG 2 compression, Dirac wavelet compression, H.264 compression and packet loss on the H.264 streaming through IP networks. MPEG 2 is a traditional standard in broadcasting society, H.264 is rapidly gaining popularity due to its superior compression efficiency, and Dirac wavelet is also competitive codec employed by BBC (British Broadcast Corporation). To ensure an enough span of video qualities, the distortion strengths were diversified. 42 paid observers participated in the subjective test, including 11 females and 31 males. Each observer assessed 10 source videos and 128 distorted videos. The single-stimulus quality scale test method (ACR) was used, where each video (including the reference) occurred once in a random order yet the two successive videos must come from different source videos so as to remove contextual and memory effects in quality evaluation.

Access

Data is accessible via FTP (Username: videodb, Password: sequence2011) Link: ftp://ivp.ee.cuhk.edu.hk/ Detailed description of the experiment is accessible via HTTP: Link: http://ivp.ee.cuhk.edu.hk/research/database/subjective/Detailed%20Information%20about%20the%20IVP%20Subjective%20Quality%20Video%20Database.pdf

License

2011 The Chinese University of Hong Kong All rights reserved. Permission is hereby granted, without written agreement and without license or royalty fees, to use, copy, and distribute this database (the images, the results, and the source files) and its documentation for non-commercial research and educational purposes only, provided that the copyright notice in its entirety appear in all copies of this database, and the original source of this database, Image and Video Processing Laboratory (IVP, http://ivp.ee.cuhk.edu.hk/) at The Chinese University of Hong Kong, is acknowledged in any publication that reports research using this database. IN NO EVENT SHALL THE CHINESE UNIVERSITY OF HONG KONG BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL LOSS OR DAMAGES ARISING OUT OF OR IN CONNECTION WITH THE USE OF OR THE INABILITY TO USE THIS DATABASE, ITS DOCUMENTATION AND INFORMATION, EVEN IF THE CHINESE UNIVERSITY OF HONG KONG HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH LOSS OR DAMAGE. THE CHINESE UNIVERSITY OF HONG KONG SPECIFICALLY DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, ACCURACY OR COMPLETENESS AND NON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OF ANY PARTY. THE DATABASE PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND THE CHINESE UNIVERSITY OF HONG KONG HAS NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.