HIGHWAY ALIGNMENT PLANNING SYSTEM UTILIZING STEREO-VIEWING OF AERIAL PHOTOGRAPHS AND COMPUTER GRAPHICS

Estimation of Aboveground Biomass Using Manual Stereo Viewing of Digital Aerial Photographs in Tropical Seasonal Forest

The objectives of this study are to: (1) evaluate accuracy of tree height measurements of manual stereo viewing on a computer display using digital aerial photographs compared with airborne LiDAR height measurements; and (2) develop an empirical model to estimate stand-level aboveground biomass with variables derived from manual stereo viewing on the computer display in a Cambodian tropical sea...

Paintings, photographs, and computer graphics are calculated appearances

Painters reproduce the appearances they see, or visualize. The entire human visual system is the first part of that process, providing extensive spatial processing. Painters have used spatial techniques since the Renaissance to render HDR scenes. Silver halide photography responds to the light falling on single film pixels. Film can only mimic the retinal response of the cones at the start of t...

An online system for classifying computer graphics images from natural photographs

We describe an online system for classifying computer generated images and camera-captured photographic images, as part of our effort in building a complete passive-blind system for image tampering detection (project website at http: //www.ee.columbia.edu/trustfoto). Users are able to submit any image from a local or an online source to the system and get classification results with confidence ...

Color Restoration of Aerial Photographs

Intelligent camera planning for computer graphics

The virtual cameras used in computer graphics are normally controlled by user input or they are generated by a simple rule, which might require them to remain in position relative to a moving object. In this thesis an alternative method of control is proposed in which camera set-ups are derived from a description of the properties of the picture the camera is intended to produce. An analysis of...