Scan-from-Image forms use tombstones to de-skew the page, and to measure offsets to the areas on the page that are read. OMR marks are read (and are generally designed to the underlying object grid). The other feature of Scan-from-Image forms is Handprint fields, which are used to mainly collect numeric handprint for processing via OCR software where a 3% error rate can be expected. Full alphanumeric data may be collected, but the error rate may be too great to be economic. Error rates around 10% are common, meaning one character in 10 will be read incorrectly or not at all. If the software offers editing from image for individual fields, you may have an economic proposition. We have another product for data collection forms, see the web site under Forms-on-Demand.

The new generation of OMR readers offer both capabilities, they read OMR from timing marks and handprint fields from the image, both taken in the same pass of the form through the scanner.  Handprint objects are available for forms of both types.