Standards Telecon - 050831
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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