PQ
E772520
PQ is a perceptual quantizer electro-optical transfer function used in HDR video systems to map digital signal values to display luminance in a way that matches human visual perception.
All labels observed (1)
| Label | Occurrences |
|---|---|
| PQ canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9030240 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: PQ Context triple: [SMPTE ST 2084, abbreviation, PQ]
-
A.
PQI
PQI is the IATA airport code for Northern Maine Regional Airport at Presque Isle in Maine, United States.
-
B.
PNQ
PNQ is the IATA airport code for Pune International Airport, a major civilian and military air hub serving the city of Pune in Maharashtra, India.
-
C.
PUQ
PUQ is the IATA airport code for Presidente Carlos Ibáñez del Campo International Airport serving Punta Arenas in southern Chile.
-
D.
PZ
PZ is the vehicle registration code used on license plates for vehicles registered in the Preveza regional unit of Greece.
-
E.
PZ
PZ is the IATA airline designator assigned to LATAM Airlines Paraguay, the Paraguayan branch of the LATAM Airlines Group.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: PQ Target entity description: PQ is a perceptual quantizer electro-optical transfer function used in HDR video systems to map digital signal values to display luminance in a way that matches human visual perception.
-
A.
PQI
PQI is the IATA airport code for Northern Maine Regional Airport at Presque Isle in Maine, United States.
-
B.
PNQ
PNQ is the IATA airport code for Pune International Airport, a major civilian and military air hub serving the city of Pune in Maharashtra, India.
-
C.
PUQ
PUQ is the IATA airport code for Presidente Carlos Ibáñez del Campo International Airport serving Punta Arenas in southern Chile.
-
D.
PZ
PZ is the vehicle registration code used on license plates for vehicles registered in the Preveza regional unit of Greece.
-
E.
PZ
PZ is the IATA airline designator assigned to LATAM Airlines Paraguay, the Paraguayan branch of the LATAM Airlines Group.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
electro-optical transfer function
ⓘ
perceptual quantizer ⓘ |
| abbreviationFor | Perceptual Quantizer ⓘ |
| alsoKnownAs |
PQ EOTF
ⓘ
linked to:
SMPTE ST 2084
ST 2084 EOTF ⓘ
linked to:
SMPTE ST 2084
|
| appliesTo | electro-optical transfer ⓘ |
| associatedWith | HDR metadata systems ⓘ |
| benefit |
more efficient code value usage
ⓘ
reduced visible banding in HDR ⓘ |
| category |
HDR transfer function
ⓘ
optical transfer characteristic ⓘ |
| characteristic | nonlinear transfer function ⓘ |
| comparedWith |
Hybrid Log-Gamma
ⓘ
linked to:
HLG (Hybrid Log-Gamma)
|
| compatibleWith |
10-bit video signals
ⓘ
12-bit video signals ⓘ |
| definedBy | SMPTE ST 2084 ⓘ |
| designedFor | human visual perception ⓘ |
| developedBy | SMPTE ⓘ |
| domain |
display technology
ⓘ
image processing ⓘ video technology ⓘ |
| enables | efficient HDR signal encoding ⓘ |
| fullName | Perceptual Quantizer ⓘ |
| input | normalized digital code values ⓘ |
| introducedFor | professional HDR workflows ⓘ |
| luminanceEncodingType | absolute ⓘ |
| maps | digital signal values to display luminance ⓘ |
| mapsTo | absolute display luminance ⓘ |
| optimizedFor | human contrast sensitivity ⓘ |
| output | display luminance in cd/m^2 ⓘ |
| purpose | to match luminance encoding to human perception ⓘ |
| relatedTo |
HLG
ⓘ
gamma transfer functions ⓘ |
| requires | tone mapping on lower-nit displays ⓘ |
| standardizedIn |
ITU-R BT.2100
ⓘ
SMPTE ST 2084 ⓘ |
| supports |
high dynamic range content
ⓘ
wide luminance range ⓘ |
| usedBy |
Dolby Vision
ⓘ
HDR10 ⓘ HDR10+ ⓘ
linked to:
HDR10+
|
| usedFor |
HDR content distribution
ⓘ
HDR display rendering ⓘ HDR mastering ⓘ |
| usedIn |
HDR video systems
ⓘ
high dynamic range imaging ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: PQ Description of subject: PQ is a perceptual quantizer electro-optical transfer function used in HDR video systems to map digital signal values to display luminance in a way that matches human visual perception.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.