H.265
E94764
H.265, also known as High Efficiency Video Coding (HEVC), is a video compression standard designed to significantly reduce bandwidth and storage requirements compared to its predecessor H.264 while maintaining high visual quality.
All labels observed (11)
| Label | Occurrences |
|---|---|
| HEVC | 20 |
| H.265 canonical | 18 |
| H.265/HEVC | 6 |
| High Efficiency Video Coding | 3 |
| ITU-T Recommendation H.265 | 2 |
| Advanced Video Coding | 1 |
| DivX HEVC | 1 |
| HEVC / H.265 | 1 |
| HEVC/H.265 | 1 |
| ITU-T H.265 | 1 |
| MPEG-HEVC | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T793511 — 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: H.265 Context triple: [ITU Telecommunication Standardization Sector, notableStandard, H.265]
-
A.
H.264
H.264 is a widely used video compression standard known for delivering high-quality video at relatively low bitrates, commonly employed in streaming, broadcasting, and video recording.
-
B.
ProRes
ProRes is a high-quality, high-performance video compression format developed by Apple and widely used in professional video production and post‑production workflows.
-
C.
Dolby Vision
Dolby Vision is a high-dynamic-range (HDR) imaging technology that enhances video with greater brightness, contrast, and color accuracy for a more lifelike viewing experience.
-
D.
Dolby TrueHD
Dolby TrueHD is a lossless multichannel audio codec designed for high-definition home entertainment formats like Blu-ray to deliver studio-quality surround sound.
-
E.
SMPTE ST 2059
SMPTE ST 2059 is a professional media industry standard that defines how to use IEEE 1588 Precision Time Protocol to synchronize clocks and signals across IP-based audio, video, and broadcast systems.
- 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: H.265 Target entity description: H.265, also known as High Efficiency Video Coding (HEVC), is a video compression standard designed to significantly reduce bandwidth and storage requirements compared to its predecessor H.264 while maintaining high visual quality.
-
A.
H.264
H.264 is a widely used video compression standard known for delivering high-quality video at relatively low bitrates, commonly employed in streaming, broadcasting, and video recording.
-
B.
ProRes
ProRes is a high-quality, high-performance video compression format developed by Apple and widely used in professional video production and post‑production workflows.
-
C.
Dolby Vision
Dolby Vision is a high-dynamic-range (HDR) imaging technology that enhances video with greater brightness, contrast, and color accuracy for a more lifelike viewing experience.
-
D.
Dolby TrueHD
Dolby TrueHD is a lossless multichannel audio codec designed for high-definition home entertainment formats like Blu-ray to deliver studio-quality surround sound.
-
E.
SMPTE ST 2059
SMPTE ST 2059 is a professional media industry standard that defines how to use IEEE 1588 Precision Time Protocol to synchronize clocks and signals across IP-based audio, video, and broadcast systems.
- F. None of above. chosen
Statements (66)
| Predicate | Object |
|---|---|
| instanceOf |
video coding format
ⓘ
video compression standard ⓘ |
| abbreviation |
HEVC
ⓘ
linked to:
H.265
|
| alsoKnownAs |
HEVC
ⓘ
linked to:
H.265
High Efficiency Video Coding ⓘ
linked to:
H.265
|
| applicationDomain |
Ultra HD Blu-ray
ⓘ
broadcast television ⓘ video conferencing ⓘ video storage ⓘ video streaming ⓘ |
| containerFormats |
MKV
ⓘ
MP4 ⓘ MPEG-TS ⓘ |
| designGoal |
higher compression efficiency than H.264
ⓘ
maintain high visual quality ⓘ reduced bandwidth requirements ⓘ reduced storage requirements ⓘ |
| developedBy |
ISO/IEC Moving Picture Experts Group
ⓘ
linked to:
MPEG
ITU-T Video Coding Experts Group ⓘ |
| entropyCodingMethod | Context-Adaptive Binary Arithmetic Coding ⓘ |
| fileExtensionUsedIn |
.265
ⓘ
.hevc ⓘ |
| formalName |
ISO/IEC 23008-2
ⓘ
ITU-T Recommendation H.265 ⓘ
linked to:
H.265
|
| hasLicensingModel | patent-licensed technology ⓘ |
| hasProfile |
Main
ⓘ
Main 10 ⓘ Main Still Picture ⓘ Range Extensions profiles ⓘ Screen Content Coding profiles ⓘ |
| hasTier |
High tier
ⓘ
Main tier ⓘ |
| initialStandardPublicationYear | 2013 ⓘ |
| partOf |
H.26x family of video coding standards
ⓘ
MPEG video standards ⓘ |
| regionOfUse | worldwide ⓘ |
| relatedStandard |
AV1
ⓘ
H.264 ⓘ VP9 ⓘ |
| standardizedBy |
ISO/IEC
ⓘ
ITU-T ⓘ
linked to:
ITU Telecommunication Standardization Sector
Joint Collaborative Team on Video Coding ⓘ
linked to:
Joint Video Team
|
| successorOf |
Advanced Video Coding
ⓘ
linked to:
H.265
H.264 ⓘ |
| supports |
4K UHD video
ⓘ
high dynamic range video ⓘ resolutions up to 8K UHD ⓘ wide color gamut ⓘ |
| supportsBitDepth |
10-bit
ⓘ
12-bit ⓘ 8-bit ⓘ |
| supportsChromaSubsampling |
4:2:0
ⓘ
4:2:2 ⓘ 4:4:4 ⓘ |
| typicalBitrateSavingComparedTo | about 50% bitrate reduction compared to H.264 at similar quality ⓘ |
| usedFor |
IPTV
ⓘ
mobile video streaming ⓘ over-the-top video services ⓘ |
| uses |
Coding Tree Units
ⓘ
block-based hybrid video coding ⓘ entropy coding ⓘ inter prediction ⓘ intra prediction ⓘ motion compensation ⓘ quadtree-based block partitioning ⓘ transform coding ⓘ |
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: H.265 Description of subject: H.265, also known as High Efficiency Video Coding (HEVC), is a video compression standard designed to significantly reduce bandwidth and storage requirements compared to its predecessor H.264 while maintaining high visual quality.
Referenced by (55)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
Blu-ray Disc format
linked to: H.265
linked to: H.265
linked to: H.265
linked to: H.265
linked to: H.265
linked to: H.265
linked to: H.265
linked to: H.265
linked to: H.265
linked to: H.265
linked to: H.265
linked to: H.265
linked to: H.265
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linked to: H.265
linked to: H.265
linked to: H.265
linked to: H.265
linked to: H.265
linked to: H.265
linked to: H.265
linked to: H.265
linked to: H.265
linked to: H.265
linked to: H.265
linked to: H.265
linked to: H.265
linked to: H.265
linked to: H.265
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linked to: H.265