HDR Calibration & Display Measurement 2

Question 1

What is the primary advantage of a spectroradiometer over a colorimeter for HDR display calibration?

Accepted Answer

Spectroradiometers measure full spectral power distribution, eliminating filter metamerism errors

Answer

Spectroradiometers are less expensive and easier to operate

Answer

Spectroradiometers require no warm-up time before use

Answer

Spectroradiometers can measure moving images in real time

Question 2

Which color gamut is the standard target for mastering HDR10 content?

Accepted Answer

Rec. 2020 (BT.2020)

Answer

sRGB

Answer

Adobe RGB

Answer

DCI-P3

Question 3

How frequently do professional post-production facilities typically calibrate their HDR mastering monitors?

Accepted Answer

At the start of each project or before critical color grading sessions

Answer

Once per year at a scheduled service interval

Answer

Once per month regardless of workload

Answer

Every five years per manufacturer recommendation

Question 4

What is the D65 white point, and why is it critical in HDR display calibration?

Accepted Answer

A ~6,500K color temperature standard used as the reference white for video and broadcast

Answer

A display brightness standard of 6,500 nits used for HDR mastering

Answer

A color difference standard of 65 delta-E units from reference white

Answer

A 6,500 lux ambient light measurement standard for grading rooms

Question 5

Which SMPTE standard defines the Perceptual Quantizer (PQ) electro-optical transfer function used in HDR10 and Dolby Vision?

Accepted Answer

SMPTE ST 2084

Answer

SMPTE ST 2048

Answer

SMPTE ST 2086

Answer

SMPTE ST 2094

Question 6

What is the key distinction between a display's color gamut and its color volume?

Accepted Answer

Color gamut defines the 2D chromaticity boundary while color volume adds luminance as a third dimension

Answer

Color gamut measures brightness while color volume measures chromaticity coverage

Answer

Color volume is a subset of color gamut measured only at reduced brightness levels

Answer

Color gamut applies to SDR displays while color volume applies only to HDR displays

Question 7

In HDR display calibration, what does the acronym EOTF stand for?

Accepted Answer

Electro-Optical Transfer Function

Answer

Effective Output Tone Function

Answer

Extended Output Tone Format

Answer

Electrical Output Timing Factor