HDR Standards & Formats 2

Question 1

Which HDR standard uses a fixed peak luminance of 10,000 nits as its reference white ceiling?

Accepted Answer

HDR10

Answer

HDR10 is mastered against a 10,000-nit absolute peak luminance ceiling defined by SMPTE ST 2084 (PQ curve).

Question 2

What is the primary technical difference between HDR10 and HDR10+?

Accepted Answer

HDR10+ uses dynamic metadata per scene or frame; HDR10 uses static metadata

Answer

HDR10+ adds dynamic metadata (developed by Samsung and Amazon) that adjusts tone mapping on a scene-by-scene or frame-by-frame basis.

Question 3

The ARIB STD-B67 standard is the formal specification for which HDR system?

Accepted Answer

Hybrid Log-Gamma (HLG)

Answer

ARIB STD-B67, developed jointly by BBC and NHK, is the official specification for Hybrid Log-Gamma (HLG).

Question 4

Which container format is REQUIRED to carry HDR10 content on Blu-ray Ultra HD discs?

Accepted Answer

HEVC (H.265) with SMPTE ST 2086 metadata in a transport stream

Answer

Ultra HD Blu-ray mandates HEVC video encoding combined with SMPTE ST 2086 static metadata carried in the stream.

Question 5

What color bit depth does the HDR10 specification require at minimum?

Accepted Answer

10-bit

Answer

HDR10 mandates at least 10-bit color depth to accommodate the expanded luminance range without excessive banding.

(HDR) High Dynamic Range Certification Practice Test