NITF PIA TREs Background
Profile for Imagery Access and Profile for Imagery Archive (PIA) TREs are used to hold information required by the Standards Profile for Imagery Access (SPIA). A variety of government agencies require these TREs in NITF image products.
There are 10 unique PIA TREs; newer PIA TREs are labeled Profile for Imagery Access, and older PIA TREs are labeled Profile for Imagery Archive.
You can edit, delete, and save both sets of PIA TREs in NITF files, but you can only create the Profile for Imagery Access TREs shown in the following table. You can create the TREs with user-defined default values using NITF Preferences, and you can save (pack) these to an output NITF file. The software updates PIAPRC and PIAPRD TREs with the current date and time when you create NITF output.
|
PIA TRE |
Header Location |
Description |
|---|---|---|
|
PIAPRD |
File |
Profile for Imagery Access Product Information about products derived from a source image |
|
PIAIMC |
Image |
Profile for Imagery Access Image Additional image information |
|
PIATGB |
Image, Symbol, Label, or Text |
Profile for Imagery Access Target Descriptive data about targets in a segment. One TRE per target |
|
PIAPEB |
Image, Symbol, Label, or Text |
Profile for Imagery Access Person Descriptive data about people in a segment. One TRE per identified person |
|
PIAEVA |
Image, Symbol, Label, or Text |
Profile for Imagery Access Event Descriptive data about events in a segment. One TRE per identified event |
|
PIAEQA |
Image, Symbol, Label, or Text |
Profile for Imagery Access Equipment Descriptive data about equipment in a segment. One TRE per identified piece of equipment |
The table below lists Profile for Imagery Archive TREs from an output NITF file that you can edit or delete, but not create.
|
PIA TRE |
Header Location |
Description |
|---|---|---|
|
PIAPRC |
File |
Profile for Imagery Archive Product Information about products derived from a source image |
|
PIAIMB |
Image |
Profile for Imagery Archive Image Additional image information |
|
PIATGA |
Image, Symbol, Label, or Text |
Profile for Imagery Archive Target Descriptive data about targets in a segment. One TRE per target |
|
PIAPEA |
Image, Symbol, Label, or Text |
Profile for Imagery Archive Person Descriptive data about people in a segment. One TRE per identified person |
|
PIAEVA |
Image, Symbol, Label, or Text |
Profile for Imagery Archive Event Descriptive data about events in a segment. One TRE per identified event |
|
PIAEQA |
Image, Symbol, Label, or Text |
Profile for Imagery Archive Equipment Descriptive data about equipment in a segment. One TRE per identified piece of equipment |
For detailed information on these TREs, see the NITFS Technical Board document STDI-0002.