RPIE Symbol Placement Accuracy.

摘要

The Replacement of Photographic Imagery Equipment (RPIE) is a high-resolution, high-speed, large-format image restitution system. Its major purpose is to produce high-resolution orthophotos from panoramic photographs. A system generator is part of the system and is used to overprint symbols on the output orthophoto. Upon completion of RPIE development, it was found that symbols on some output orthophotos were not being placed accurately enough to meet user requirements. These symbol placement errors were noted only in the system's UNAMACE ONLINE operating mode. The objective of the RPIE Symbol Placement Accuracy Project was to locate and correct this problem. This report discusses the cause of symbol placement problems and documents the program changes made. Section 2 describes the source of the noted symbol placement errors, and section 3 discusses the minimization of those errors. Section 4 provides additions to the viewer operating sequence, and section 5 documents the changes that have been made to the original RPIE programs. (Author)