HDR Standards & Tone Mapping Flashcards

What does HDR stand for in modern display technology?

Answer: High Dynamic Range

HDR stands for High Dynamic Range, referring to the greater luminance range between the darkest and brightest output a display can produce.

Which HDR format uses only static metadata applied uniformly to the entire content?

Answer: HDR10

HDR10 uses static metadata (SMPTE ST 2086) set once for the entire content, unlike dynamic metadata formats that adjust per scene or frame.

What is the theoretical maximum luminance that SMPTE ST 2084 (PQ) was designed to represent?

Answer: 10,000 nits

SMPTE ST 2084 was designed to encode up to 10,000 nits, which represents the approximate limit of human visual tolerance.

HLG (Hybrid Log-Gamma) was jointly developed by which two broadcasting organizations?

Answer: BBC and NHK

HLG was developed jointly by BBC and NHK as a broadcast-friendly HDR standard that maintains backward compatibility with SDR infrastructure.

What does EOTF stand for in display calibration terminology?

Answer: Electro-Optical Transfer Function

EOTF (Electro-Optical Transfer Function) defines the relationship between an encoded electrical signal and the resulting light output from a display.

Which metadata standard specifies the Mastering Display Color Volume (MDCV) used in HDR10?

Answer: SMPTE ST 2086

SMPTE ST 2086 defines the static mastering display color volume metadata, including peak luminance and color primaries of the grading monitor.

What does MaxCLL (Maximum Content Light Level) specify in HDR10 metadata?

Answer: The luminance of the brightest single pixel anywhere in the content

MaxCLL specifies the luminance of the single brightest pixel found anywhere in the entire content stream, used to guide tone mapping decisions.