Maa-57.301 Fotogrammetrian yleiskurssi

Luento 13: Optinen 3-D mittaus

AIHEITA

• 3-D Digitizing
• Moiré

3-D Digitizing

• Input: 3-D Objects and 3-D Space
• Output: 3-D Models
• Mechanism: Digital Photogrammetry Systems
• Control: Application Specifications

1. On-site control surveys
2. Digital image acquisition
• Camera set-up
• Structured light projection
• Image recording
3. 3-D geometric modelling
• Camera coordinate measurements
• Measuring of object points for relative orientation
• Interior orientation
• Compensation of imaging errors
• Object model measurements
• Relative orientation of images
• Stereo-restitution of 3-D models
• Primitive object modelling
• Relative orientation of 3-D models
• 3-d digitizing of the object surface
• Image matching
• Profiling
• Profile scanning
• Surface modelling
• Coordinate transformation
4. 3-D photorealistic modelling

Moiré

• Kuvia
1. Rotation of five degrees
2. Rotation of five and ten degrees
• Julkaisuja
1. Jussi Paakkari, On-line flatness measurement of large steel plates using moire topography