Region of interest in vector images

Return to SDTC page; Return to CDA R3 Formal Proposals page.

See CDA R3 Formal Proposals for instructions on using this form. Failure to adhere to these instructions may result in delays. Editing of formal proposals is restricted to the submitter and SDTC co-chairs. Other changes will be undone. Comments can be captured in the associated discussion page.

(This is a template. Do not edit! Copy and paste source into to a new page)

(An announcement of this proposal must be submitted to the Structured Documents list to be formally submitted.)

Submitted by: <<Name>>	Revision date: <<Revision Date>>
Submitted date: <<Submit Date>>	Change request ID: <<Change Request ID>>

Issue

The CDA R2 Normative Web Edition, section 4.3.6.7 states the following:

The units of the coordinate values in RegionOfInterest.value are in pixels, expressed as a list of integers. The origin is in the upper left hand corner, with positive X values going to the right and positive Y values going down.

Using pixels works well for bitmaps, JPEG, GIF and other similar images. However, a vector based image does not use pixels and they can be scaled up an down. Pixels would not work in this case.

Resolution

(Resolution is to be recorded here and in the referenced minutes, which are the authoritative source of resolution).