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SVC4QoE_QP0_QP1 Subjective quality of H.264/SVC videos using ACR-HR method in VGA
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Information
| Categories | Quality Assessment / Videos |
|---|---|
| Processing | H.264 / H.264 SVC |
| Quality assessment method | Absolute Category Rating - Hidden Reference |
| Resolution | Less than 960x540 |
| Created the | 12 Jan 2015 |
Overview
This database contains 11 contents with for each content, the reference (without processing or degradation) and 29 different HRCs. The HRCs are h264 and h264/SVC. Several QP repartition are tested between the base layer of the SVC stream and the enhancement layer. There is one spreadsheet with the individual score and the MOS for each video for the results of subjective test using ACR methodology. A text file presents the conditions in which the videos was evaluated.
The contents of this database are VGA (640x480) videos. The display mode is progressive and the frame rate is 60Hz.
Provided data
Videos
The AVI videos are provided in the "Videos" directory. You can play the videos with a standard video player like VLC for example.
Subjective scores
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).
Hypothetical reference circuits
The HRC are h264 and h264/SVC coded with the JSVM coder version 9.18. The AVC and SVC layers are coded at different QP values at 30Hz. Some videos have other degradations come from common set with other available tests on the SVC4QoE_Temporal_Switch and SVC4QoE_Replace_Slice pages.
| HRC | HRC name |
|---|---|
| 00 | Reference |
| 01 | H.264 SVC coding with base layer at QP = 26 and enhancement layer QP = 26 |
| 02 |
H.264 SVC coding with base layer at QP = 26 and enhancement layer QP = 32 |
| 03 | H.264 SVC coding with base layer at QP = 26 and enhancement layer QP = 38 |
| 04 | H.264 SVC coding with base layer at QP = 26 and enhancement layer QP = 44 |
| 05 | H.264 SVC coding with base layer at QP = 32 and enhancement layer QP = 26 |
| 06 | H.264 SVC coding with base layer at QP = 32 and enhancement layer QP = 32 |
| 07 | H.264 SVC coding with base layer at QP = 32 and enhancement layer QP = 38 |
| 08 | H.264 SVC coding with base layer at QP = 32 and enhancement layer QP = 44 |
| 09 | H.264 SVC coding with base layer at QP = 38 and enhancement layer QP = 26 |
| 10 | H.264 SVC coding with base layer at QP = 38 and enhancement layer QP = 32 |
| 11 | H.264 SVC coding with base layer at QP = 38 and enhancement layer QP = 38 |
| 12 | H.264 SVC coding with base layer at QP = 38 and enhancement layer QP = 44 |
| 13 | H.264 SVC coding with base layer at QP = 44 and enhancement layer QP = 26 |
| 14 | H.264 SVC coding with base layer at QP = 44 and enhancement layer QP = 32 |
| 15 | H.264 SVC coding with base layer at QP = 44 and enhancement layer QP = 38 |
| 16 | H.264 SVC coding with base layer at QP = 44 and enhancement layer QP = 44 |
| 17 | H.264 SVC coding with base layer at QP = 26 upscaled to VGA |
| 18 | H.264 SVC coding with base layer at QP = 32 upscaled to VGA |
| 19 | H.264 SVC coding with base layer at QP = 38 upscaled to VGA |
| 20 | H.264 SVC coding with base layer at QP = 44 upscaled to VGA |
| 21 | H.264 AVC coding with QP = 26 (in VGA) |
| 22 | H.264 AVC coding with QP = 32 (in VGA) |
| 23 | H.264 AVC coding with QP = 38 (in VGA) |
| 24 | H.264 AVC coding with QP = 44 (in VGA) |
| 25* | H.264 AVC coding with transmission error |
| 26* | H.264 SVC coding with transmission error : the error frames are replaced by the base layer at 15fps and coded at 120kb/s |
| 27* | H.264 SVC coding with transmission error : the error slices are replaced by the base layer at 30fps and coded at 200kb/s |
| 28 | H.264 SVC coding with base layer at QP = 44 and enhancement layer QP = 32. Switch between the 2 layers (with upscaled of base layer) with the number frames 52/8 |
| 29 | H.264 SVC coding with base layer at QP = 38 and enhancement layer QP = 32. Switch between the 2 layers (with upscaled of base layer) with the number frames 30/30 |
* The HRC 25, 26 and 27 are applied on a different source contents than the other HRC. These HRC are not applied on the src03 and src10. For the other source contents the time duration is not the same. So the src number are added to 20. For example the SRC21 is the same than SRC01 with a different time duration.
Experience information
| Display | LCD TvLogic LVM401 |
| Luminance | 0.1/180cd/m² |
| Observation distance | 4H |
| Resolution | VGA (640x480) |
| Frequency | 30 Hz |
| Methodology | ACR |
| Duration | 2x50 minutes |
| Number of videos | 324 |
| Rejection method | VQEG MM tesplan |
| Number of observers | 27 (0 rejected) |
Related pages
Source publication : Please, cite the following paper(s) in your publications if you use this database in your work
Aligning subjective tests using a low cost common set Y. Pitrey, U. Engelke, M. Barkowsky, R. Pépion, P. Le Callet
Conference paperEuro ITV, Jun 2011, Lisbonne, Portugal
Database Download Guide for ftp://ftp.ivc.polytech.univ-nantes.fr/IRCCyN_IVC_SVC4QoE_QP0_QP1/
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_SVC4QoE_QP0_QP1/ |
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_SVC4QoE_QP0_QP1/ , 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_SVC4QoE_QP0_QP1/
