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H264_HD_vs_Upscaling_and_Interlacing Subjective quality to compare FullHD vs Upscaling and Interlacing H.264 coded videos (using ACR-HR 11 levels)
Information
| Categories | Quality Assessment / Videos |
|---|---|
| Processing | H.264 |
| Quality assessment method | Absolute Category Rating - Hidden Reference |
| Resolution | 1920x1080 |
| Created the | 12 Jan 2015 |
Information
Edit (15/01/2015)
The spreadsheet file has being updated in the database. Please download it again.
Overview
This database contains 87 videos sequences and the associated subjective results. 3 different video source contents were used. For each content, the reference (without degradation) and 28 different degradations called Hypothetical Reference Circuits (HRCs) were subjectively evaluated.
Provided data
On the FTP server, we provide the videos in the directory "Videos". These videos are AVI files. To reduce the downloading time duration, the avi files are zipped to bz2 files. To uncompress the files, use an archiver like IZArc. After downloading, you can visualize the video by using a video player like VLC for example.
The subjective scores are provided. An Excel file is provided. In this file, a PVS (an AVI video) is associated to a line and an observer to a column. You have access to all individual vote from each observer to each AVI video. The last column is the Mean Opinion Score (MOS).
We used Absolute Category Rating (ACR) with 11 levels as test methodology. A text file describes the exact conditions in which the videos were evaluated.
Hypothetical Reference Circuits
The H.264 HRCs are coded with the JM coder version 11. The HRCs are based on H.264 coding without transmission errors. There are 6 different formats (1920x1080p50, 1920x1080i50, 1280x720p50, 1280x1080i50, 1280x1080p50 and SD (720x576)) and 3 different bitrates (3Mb/s, 6Mb/s and 9Mb/s). All Processed Video Sequences (PVS) are displayed on a 1920x1080 progressive display so the SD and 720 are upscaled and the interleaved format are deinterlaced.
More details can be found in the source paper.
Experience information
| Display | TV Logic LVM401 |
| Luminance | 0.16/200cd/m² |
| Observation distance | 3H |
| Resolution | 1920x1080 |
| Frequency | 50 Hz |
| Methodology | ACR |
| Duration | 45 minutes |
| Number of videos | 87 |
| Rejection method | VQEG Multimedia Test Plan |
| Number of observers | 26 (0 rejected) |
Related pages
Source publication : Please, cite the following paper(s) in your publications if you use this database in your work
Subjective quality evaluation of h.264 high-definition video coding versus spatial up-scaling and interlacing Y. Pitrey, M. Barkowsky, P. Le Callet, R. Pépion
Conference paperEuro ITV, Jun 2010, Tampere, Finland
Database Download Guide for ftp://ftp.ivc.polytech.univ-nantes.fr/IRCCyN_IVC_H264_HD_vs_Upscaling_Interlacing/
Use a FTP Manager to download all files at once
| Host | ftp.ivc.polytech.univ-nantes.fr |
|---|---|
| Port | 21 |
| User information | Anonymous |
| Directory | IRCCyN_IVC_H264_HD_vs_Upscaling_Interlacing/ |
With Filezilla (Windows, Linux, Mac OS)
- Download the FileZilla Client software at https://filezilla-project.org/ and install it.
- Launch File > Sites Manager and fill in the form. The Host is ftp.ivc.polytech.univ-nantes.fr. Use Anonymous for Logon Type. All others fields can be left blank. Finally, press Connect.
- In the first panel, you can see connection's logs. Normally, a message like Response: 220 ftproxy FTP server (Version 1.9.2.4 - 2005/01/11 13:03:28) ready. is printed.
- The left column below contains your computer file system and the selected folder. In the right column, you can see the FTP server file system and its selected folder.
- In the left colum, select the local directory in which receive the database. In the right panel, find IRCCyN_IVC_H264_HD_vs_Upscaling_Interlacing/ , right click and press Download.
- Bottom panel shows file transfer informations. All files of the databases are being downloaded in your computer. Please wait during the transfer.
With WGET (Linux)
Copy and paste this command in a terminal :
wget -P your/destination/folder ftp://ftp.ivc.polytech.univ-nantes.fr/IRCCyN_IVC_H264_HD_vs_Upscaling_Interlacing/
