H264_Watermarking Structure preserving H.264 watermarking
|Categories||Quality Assessment / Videos / Watermarking|
|Quality assessment method||Absolute Category Rating - Hidden Reference|
|Resolution||Between 1920x1080 and 960x540|
|Created the||13 Apr 2015|
4 input sequences (original color videos) were used, 56 distorted videos were generated with 2 different scenarrios (encoding only or watermarking + encoding) for each video (and each scenario) 6 quantization parameters were used (Qp=24, 28, 32, 36, 40 and 44). The original input contents were also evaluated for both scenarios (4*2*6+4*2=56).
Details on this database can be found in the citation below.
The ACR (absolute Category Rating) protocol was used. For this protocol, a single video sequence is displayed in the center of the screen, and the observer is asked for a quality score after every displayed sequence. The resolution of the tested video sequences was 1280 x 720. The quality score was (5: Excellent, 4: Good, 3: Fair, 2: Poor, 1: Bad), MOS were computed across the 42 observers, as well as standard deviations for every content across observers, the maximum standard deviation was below 1 (0.93).
Each sequence was 10 seconds long (250 frames). For each observer, the experiment duration was in between 15 and 20 minutes.
Subjective evaluations were made at a viewing distance of 6 times the screen height. Distortions for each processing and each video have been optimized in order to uniformly cover the visibility scale.
Source publication : Please, cite the following paper(s) in your publications if you use this database in your work
Database Download Guide for ftp://ftp.ivc.polytech.univ-nantes.fr/IRCCyN_IVC_H264_Watermarking_Structure_Preserving/
Use a FTP Manager to download all files at once
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 126.96.36.199 - 2005/01/11 13:03:28) ready. is printed.
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- In the left colum, select the local directory in which receive the database. In the right panel, find IRCCyN_IVC_H264_Watermarking_Structure_Preserving/ , right click and press Download.
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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_Watermarking_Structure_Preserving/