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Free-Viewpoint_synthesized_videos Free-Viewpoint synthesized videos with subjective quality measures (ACR-HR)

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Information

Categories Quality Assessment / Videos
Processing JPEG & JPEG 2000 / H.264 / HEVC
Quality assessment method Absolute Category Rating - Hidden Reference
Resolution 1920x1080 / Between 1920x1080 and 960x540
Created the28 Jan 2015

Information & Goal

The Free-Viewpoint synthesized videos quality database contains 264 video sequences of 100 frames (around 7 seconds @15fps) in 1024x768 and 1920x1080 pixels resolution. Individual votes and MOS scores obtained by an ACR-HR experiment are provided.

Six different multiview sequences are considered in this database. 2 cameras were choosen to generate 50 intermediate synthesized views. The videos are composed by the visualisation from one original view to the other and come back by displaying all synthesized view on one frame.

From a given MVD sequence, two different view-points at one time instant t (also referred to as key frames in the following) were considered. The associated depth maps were encoded through seven depth map codecs under test. From the decoded depth maps, fifty intermediate viewpoints (equally separated) were generated in-between the two considered viewpoints. A sequence of 100 frames (at 10 fps) was built from the 50 intermediate virtual frames to simulate a smooth camera motion from left to right and from right to left.

Initial goal

This database was done to evaluate several depth coding algorithms by evaluating free-viewpoint video sequences at different bitrates. 50 synthesized view are generated from a still image for each content and a video is created with the combinaison of all synthesized view. More details can be found in the related publication.

Possible usage

This video quality database can be used to evaluate video quality metrics precision on specific degradations.

Source publication : Please, cite the following paper(s) in your publications if you use this database in your work

A quality assessment protocol for free-viewpoint video sequences synthesized from decompressed depth data E. Bosc, P. Hanhart, P. Le Callet, T. Ebrahimi

Conference paperFifth International Workshop on Quality of Multimedia Experience (QoMEX), Jul 2014, Klagenfurt, Germany BibTex XML