Gonzalo Luzardo

An Experimental Study on the Perceived Quality of Natively Graded versus Inverse Tone Mapped High Dynamic Range Video Content on Television

For this research, the Flemish Radio and Television Broadcasting Organization (Vlaamse Radio- en Televisieomroeporganisatie-VRT) produced a short film of about 5 minutes which contained a wide variety of scenes in different luminance, contrast, and transition conditions. This short film was professionally graded by experts at VRT in HDR and SDR (both, by cutting the dynamic range prior grading and by compressing the dynamic range during grading) by dual-grading, using a SIM2-HDR47E display and a Barco type RHDM-2301 as reference displays, respectively. The SIM2 HDR display contains 2202 individually modulated LED back-lights, which can reach up to 6000 nits of peak brightness. Both versions, the HDR and SDR, were produced in full HD (1920x1080) at 24 fps. For the experiment, we selected six different video sequences of 15 seconds each, which represent all different scenes present in the short film.

The use of this dataset only for educational/research purposes.

Subjective scores
Subjective scores in XML format

Video sequences used in the study (SDR and XDR versions)
Thumbnail	Available sequences	Description
	Average(**) SDR | HDR | XDR1 | XDR2 | XDR3	An average scene filmed outdoors during the day with moderate brightness.
	Street(**) SDR | HDR | XDR1 | XDR2 | XDR3	A dark scene filmed at night with high contrast.
	Mannequin(**) SDR | HDR | XDR1 | XDR2 | XDR3	A dark scene filmed with dim light with low contrast.
	Welding(**) SDR | HDR | XDR1 | XDR2 | XDR3	A scene filmed with dim light that contains bright parts with high contrast.
	Heaven(**) SDR | HDR | XDR1 | XDR2 | XDR3	A bright scene with high luminance and low contrast.
	Garage(**) SDR | HDR | XDR1 | XDR2 | XDR3	A scene with a tansition from dark to bright.