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BEGIN:VEVENT
UID:0d5af1d727caace4464dee87caf8130a54623d70@swoogo.com
DTSTAMP:20260813T005418Z
DESCRIPTION:Recent advances in display technologies enable home and cinema 
 display systems to reach higher peak luminance and perceived Full Screen W
 hite (FSW) levels while also improving on black level capabilities. This n
 ext generation of displaying technology will help creators deliver content
  of higher visual quality\, increasing the overall Quality of Experience (
 QoE) of viewers. However\, there are growing concerns in the cinema indust
 ry that possible “mismanagement” or “misuse” of the new luminance reproduc
 tion capabilities may result in viewers’ visual discomfort. A typical exam
 ple of potential “misuse” is abrupt temporal brightness transitions during
  a scene change or even within the same scene. Prior studies\, which were 
 conducted in a home environment\, reported that displaying higher amounts 
 of light could potentially lead to viewers’ visual discomfort. However\, n
 o study has been conducted in a cinema environment. In this work\, we prop
 ose to quantify the human observer tolerance of temporal brightness transi
 tions in a cinema environment through subjective evaluations. Different ex
 periments evaluate the impact of various distributions of light on the scr
 een\, namely full screen\, highlights\, and noise patterns\, and real imag
 es. Results of our evaluations indicate that the light distribution\, as w
 ell as the peak luminance values\, have minimum impact on viewers’ toleran
 ce to temporal brightness transitions. In fact\, observers reported visual
  discomfort only when the total amount of light on screen was varying sign
 ificantly. More specifically\, average luminance transitions from 0.1 and 
 1 cd/m2 to 35 cd/m2\, were rated as “slightly annoying” and average lumina
 nce transitions from 0.1 and 1 cd/m2 to 75 cd/m2 as “annoying”. It is also
  worth noting that viewers reported visual discomfort at a similar transit
 ion intensity for saturated colors and white. The results of our study cou
 ld provide useful insight to content creators\, for example warning about 
 temporal transitions that may cause visual discomfort.
DTSTART:20191022T213000Z
DTEND:20191022T220000Z
LAST-MODIFIED:20260813T005418Z
LOCATION:Sacramento Room
SEQUENCE:0
STATUS:CONFIRMED
SUMMARY:Brightness in Cinema: When is it Too Bright?
TRANSP:OPAQUE
X-ALT-DESC;FMTTYPE=text/html:Recent advances in display technologies enable
  home and cinema display systems to reach higher peak luminance and percei
 ved Full Screen White (FSW) levels while also improving on black level cap
 abilities. This next generation of displaying technology will help creator
 s deliver content of higher visual quality\, increasing the overall Qualit
 y of Experience (QoE) of viewers. However\, there are growing concerns in 
 the cinema industry that possible “mismanagement” or “misuse” of the new l
 uminance reproduction capabilities may result in viewers’ visual discomfor
 t. A typical example of potential “misuse” is abrupt temporal brightness t
 ransitions during a scene change or even within the same scene. Prior stud
 ies\, which were conducted in a home environment\, reported that displayin
 g higher amounts of light could potentially lead to viewers’ visual discom
 fort. However\, no study has been conducted in a cinema environment. In th
 is work\, we propose to quantify the human observer tolerance of temporal 
 brightness transitions in a cinema environment through subjective evaluati
 ons. Different experiments evaluate the impact of various distributions of
  light on the screen\, namely full screen\, highlights\, and noise pattern
 s\, and real images. Results of our evaluations indicate that the light di
 stribution\, as well as the peak luminance values\, have minimum impact on
  viewers’ tolerance to temporal brightness transitions. In fact\, observer
 s reported visual discomfort only when the total amount of light on screen
  was varying significantly. More specifically\, average luminance transiti
 ons from 0.1 and 1 cd/m2 to 35 cd/m2\, were rated as “slightly annoying” a
 nd average luminance transitions from 0.1 and 1 cd/m2 to 75 cd/m2 as “anno
 ying”. It is also worth noting that viewers reported visual discomfort at 
 a similar transition intensity for saturated colors and white. The results
  of our study could provide useful insight to content creators\, for examp
 le warning about temporal transitions that may cause visual discomfort.
END:VEVENT
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