HDR Assessment & Evaluation Techniques 2

Question 1

Which metric is used to evaluate the maximum light level of an entire HDR frame, averaged across all bright pixels?

Accepted Answer

MaxFALL

Answer

MaxFALL (Maximum Frame Average Light Level) represents the highest average luminance of any single frame in a content piece.

Question 2

When performing a subjective evaluation of HDR content, what viewing environment condition is most critical to control?

Accepted Answer

Ambient light level

Answer

Ambient light level directly affects perceived contrast and must be controlled to ITU-R BT.2100 recommendations for valid HDR evaluation.

Question 3

In HDR quality control, which EOTF is specifically used for broadcast and streaming HDR applications alongside SDR compatibility?

Accepted Answer

HLG (Hybrid Log-Gamma)

Answer

HLG was designed for broadcast to maintain backward compatibility with SDR displays while supporting HDR viewing.

Question 4

What is the primary purpose of a test pattern showing a 5% white window on a black field during HDR display assessment?

Accepted Answer

Measure peak luminance under realistic load conditions

Answer

A 5% white window on black simulates realistic peak highlights and tests how well a display sustains peak luminance without thermal throttling.

Question 5

Which tool is considered the industry standard for objective measurement of display luminance in HDR evaluation?

Accepted Answer

Spectroradiometer

Answer

A spectroradiometer measures absolute luminance and color with high accuracy, making it the reference instrument for HDR display calibration and evaluation.

(HDR) High Dynamic Range Certification Practice Test

(HDR) High Dynamic Range Certification Practice Test

HDR Assessment & Evaluation Techniques 2