Transfer Syntax A Transfer Syntax is a set of encoding rules able to unambiguously represent one or more Abstract Syntaxes. In particular, it allows communicating Application Entities to negotiate common encoding techniques they both support (e.g., byte ordering, compression, etc.). A Transfer Syntax is an attribute of a Presentation Context, one or more of which are negotiated at the establishment of an Association between DICOM Application Entities. DICOM Transfer Syntaxes Transfer Syntax UID Transfer Syntax name 1.2.840.10008.1.2 Implicit VR Endian: Default Transfer Syntax for DICOM 1.2.840.10008.1.2.1 Explicit VR Little Endian 1.2.840.10008.1.2.1.99 Deflated Explicit VR Little Endian 1.2.840.10008.1.2.2 Explicit VR Big Endian Transfer Syntax UID Transfer Syntax name 1.2.840.10008.1.2.4.50 JPEG Baseline (Process 1):Default Transfer Syntax for Lossy JPEG 8-bit Image Compression 1.2.840.10008.1.2.4.51 JPEG Baseline (Processes 2 & 4):Default Transfer Syntax for Lossy JPEG 12-bit Image Compression(Process 4 only) 1.2.840.10008.1.2.4.52 JPEG Extended (Processes 3 & 5) Retired 1.2.840.10008.1.2.4.53 JPEG Spectral Selection, Nonhierarchical (Processes 6 & 8) Retired 1.2.840.10008.1.2.4.54 JPEG Spectral Selection, Nonhierarchical (Processes 7 & 9) Retired 1.2.840.10008.1.2.4.55 JPEG Full Progression, Nonhierarchical (Processes 10 & 12) Retired 1.2.840.10008.1.2.4.56 JPEG Full Progression, Nonhierarchical (Processes 11 & 13) Retired 1.2.840.10008.1.2.4.57 JPEG Lossless, Nonhierarchical (Processes 14) 1.2.840.10008.1.2.4.58 JPEG Lossless, Nonhierarchical (Processes 15) Retired 1.2.840.10008.1.2.4.59 JPEG Extended, Hierarchical (Processes 16 & 18) Retired 1.2.840.10008.1.2.4.60 JPEG Extended, Hierarchical (Processes 17 & 19) Retired 1.2.840.10008.1.2.4.61 JPEG Spectral Selection, Hierarchical (Processes 20 & 22) Retired 1.2.840.10008.1.2.4.62 JPEG Spectral Selection, Hierarchical (Processes 21 & 23) Retired 1.2.840.10008.1.2.4.63 JPEG Full Progression, Hierarchical (Processes 24 & 26) Retired 1.2.840.10008.1.2.4.64 JPEG Full Progression, Hierarchical (Processes 25 & 27) Retired 1.2.840.10008.1.2.4.65 JPEG Lossless, Nonhierarchical (Process 28) Retired 1.2.840.10008.1.2.4.66 JPEG Lossless, Nonhierarchical (Process 29) Retired 1.2.840.10008.1.2.4.70 JPEG Lossless, Nonhierarchical, First- Order Prediction(Processes 14 [Selection Value 1]):Default Transfer Syntax for Lossless JPEG Image Compression 1.2.840.10008.1.2.4.80 JPEG-LS Lossless Image Compression 1.2.840.10008.1.2.4.81 JPEG-LS Lossy (Near- Lossless) Image Compression 1.2.840.10008.1.2.4.90 JPEG 2000 Image Compression (Lossless Only) 1.2.840.10008.1.2.4.91 JPEG 2000 Image Compression 1.2.840.10008.1.2.4.92 JPEG 2000 Part 2 Multicomponent Image Compression (Lossless Only) 1.2.840.10008.1.2.4.93 JPEG 2000 Part 2 Multicomponent Image Compression Transfer Syntax UID Transfer Syntax name 1.2.840.10008.1.2.4.94 JPIP Referenced 1.2.840.10008.1.2.4.95 JPIP Referenced Deflate 1.2.840.10008.1.2.5 RLE Lossless 1.2.840.10008.1.2.6.1 RFC 2557 MIME Encapsulation Transfer Syntax UID Transfer Syntax name 1.2.840.10008.1.2.4.100 MPEG2 Main Profile Main Level 1.2.840.10008.1.2.4.102 MPEG-4 AVC/H.264 High Profile / Level 4.1 1.2.840.10008.1.2.4.103 MPEG-4 AVC/H.264 BD-compatible High Profile / Level 4.1 Retired - those from earlier versions of the standard that will not be supported in future DICOM releases. www.dicomlibrary.com