Standards Telecon - 050831 ===================================================================== Attendees: B.Sword EN L.Huber ATMOS M.McAuley IMG A.Raugh SBN S.Slavney GEO K.Bennett GEO D.Scholes GEO C.Isbell IMG T.King PPI Agenda: (1) S.Hughes presented the proposed 2 month schedule for attempting to complete SCR 3-1003 JPEG 2000 as PDS Archive Format. See: http://pds.jpl.nasa.gov/tracking/standards/3-1003_jpeg2000/ - T.King expressed concern over the tight schedule in getting the the HiRise SIS signed. (2) Following the presentation, the discussion turned into a series of general debates centered around compression / compressing data: - A.Raugh / T.King asked what are / have been the criteria used by the PDS to decide if a compression scheme is compliant. - S.Hughes indicated that "all" of these criteria will be addressed in the forthcoming SCR. - L.Huber indicated that 2 yrs ago the PDS pretty much accepted the use of JPG2000 but was looking for someone to provide sample labels. - S.Slavney indicated that from her perspective she is only interested in seeing two things from the data producers: (1) Use ENCODING_TYPE = JPEG2000, which would be a new standard value. (2) Include decompression s/w in the archive, which is not a change. - R.Joyner asked S.Slavney if she intentionally didn't include changes to the Standards as part of the list of issues. To which S.Slavney indicated that she didn't think it was necessary. - A.Raugh / T.King indicated that they thought the Standards should reflect the set of allowed compression schemes. A policy could be written that generally describes compression independent of the encoding_type / actual method used to compress the data. (3) M.McAuley presented his "JPEG2000 Performance/Status Presentation" See: http://pds.jpl.nasa.gov/tracking/standards/3-1003_jpeg2000/ (4) End of telecon