DICOM WG-13 Supplement 137 MPEG2 Transfer Syntax Thursday, November 20, 2008 Paul Gardiner (document editor) Sony Corporation

Progress with Supplement June 2008: WG-06 (Cardiff) approved for Public Comment Detailed discussion, editorial adjustments Size of single fragment confirmed as approx 4 GB Approved for Public Comment 2 July 2008: WG-13 T-Con Recommendation to constrain DAR to 16:9 Further editorial adjustments proposed August 2008 – WG-06 comments received from: WG-13 GE Healthcare (mainly regarding use of rather than MPEG-4 AVC) 15 October 2008: editing proposal spreadsheet sent to WG October 2008 – WG-06 (by telephone) Public Comments addressed; further editorial improvements Decided to restrict to square pixels easy to accept for PACS vendors removes risk of incorrect aspect ratio display Decided is explicitly NOT included in DICOM this is not believed to be an issue with know current or planned products theoretical future inconvenience should vendors wish to convert existing HDV or XDCAM files directly into DICOM files. However, this is not critical. Approved for LB

Progress with Supplement 137 Remaining issues? Editorial: Notes 6, 7 should use consistent terminology when referring to MPEG2 High 1440 profile: this should be: Please Vote! Deadline is 9 January