H.265

E94764

video coding format video compression standard

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.

Try in SPARQL Jump to: Surface forms Disambiguation Statements Elicitation Referenced by

All labels observed (7)

Label	Occurrences
HEVC	9
H.265 canonical	3
High Efficiency Video Coding	2
ITU-T Recommendation H.265	2
Advanced Video Coding	1
HEVC/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	H.265 self-linksurface differs ⓘ surface form: HEVC
alsoKnownAs	H.265 ⓘ surface form: HEVC H.265 ⓘ surface form: High Efficiency Video Coding
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	MPEG ⓘ surface form: ISO/IEC Moving Picture Experts Group ITU-T Video Coding Experts Group ⓘ
entropyCodingMethod	Context-Adaptive Binary Arithmetic Coding ⓘ
fileExtensionUsedIn	.265 ⓘ .hevc ⓘ
formalName	ISO/IEC 23008-2 ⓘ H.265 self-linksurface differs ⓘ surface form: ITU-T Recommendation 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 Telecommunication Standardization Sector ⓘ surface form: ITU-T Joint Video Team ⓘ surface form: Joint Collaborative Team on Video Coding
successorOf	H.265 self-linksurface differs ⓘ surface form: Advanced Video Coding 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

Referenced by (19)

Full triples — surface form annotated when it differs from this entity's canonical label.

ITU Telecommunication Standardization Sector → notableStandard → H.265 ⓘ

Blu-ray Disc format → supportsVideoCodec → H.265 ⓘ

subject surface form: Blu-ray Disc

this entity surface form: HEVC/H.265

Photos → supports → H.265 ⓘ