Development and Implementation of a Rapid Low-Cost Photogrammetric Data Archival System for Artifact and Osteological Inventory
Anne Gisiger
Eben S. Cooper
Yew Yuan
W. Frederick Limp
Final Report
NPS Grant Number: MT-0424-4-NC-22
National Center for Preservation Technology and Training
March 1996
The complete report in PDF format is here
- INTRODUCTION
- BACKGROUND
- A. CLOSE-RANGE PHOTOGRAMMETRY
- 1. Surveying monuments and buildings
- 2. Museum research and rock painting
- 3. Modelling surfaces
- 4. Biostereometrics and medical applications
- 5. Underwater photography
- 6. Monoscopic/convergent photogrammetry
- 7. Photogrammetry in archeology
- B. THE PHOTOGRAMMETRIC PROCESS
- C. NON-METRIC VS. METRIC CAMERAS
- 1. Lens distortion
- 2. Need for a film flattening mechanism
- 3. Defining the film position in the camera body
- OVERVIEW OF THE PROCESS UTILIZED
- A. THREE-DIMENSIONAL CONTROL FIELD
- 1. Control frames for horizontal photograph
- 2. Control frames for vertical photographs
- B. ARTIFACT PREPARATION
- 1. Shadow
- 2. Object Texture
- 3. Object Orientation
- 4. Documentation
- C. PHOTOGRAPHIC EQUIPMENT AND SETUP
- 1. Camera body
- 2. Lenses
- 3. Film sensitivity, resolving power and longevity
- 4. Camera movement system
- 5. Light source and lighting method
- 6. Exposure
- D. PROCESSING DATA WITH A SOFTCOPY PHOTOGRAMMETRY SYSTEM
- 1. Interior orientation
- 2. Relative orientation
- 3. Absolute orientation
- 4. Stereo resampling and image analysis
- RESULTS
- A. SMALL OBJECTS AND SMALL VERTICAL CONTROL FRAME
- B. SMALL/MEDIUM SIZE OBJECTS, LARGER VERTICAL CONTROL FRAMES
- C. LARGER OBJECTS AND HORIZONTAL CONTROL FRAME
- D. PRELIMINARY ASSESSMENT OF MEASUREMENT DEV. IN X, Y and Z
- ALTERNATIVE METHODS
- CONCLUSION
- APPENDICES
- GLOSSARY
- REFERENCES