Crossing from one HD standard to another.

Conversions from one HD standard to another are commonly referred to as “crossconversions.” In strict technical terms crossconversions from a smaller standard to a larger one should be considered upconversions while crossconversions to a smaller standard should be considered downconversions.

For example, transferring 720p camera masters to 1080i is a crossconversion. Since you are also enlarging the video raster it is an upconversion.