Predicting the Shadow in an Oblique View of a Rectangular Target
Abstract
When land or sea targets are sought in an oblique view of a sunlit scene, their shadows may be their most conspicuous features. It is therefore useful to predict how the shadow of a target will appear in the image, given its shape and orientation and the positions of the sun and the camera. This note considers the prediction of the visible shadows of a simple but representative target shape, the rectangular block, including those cast on the ground or water and those formed on the walls of the block. It gives a complete analysis of the method, and includes a simple method for predicting the sun s position.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 2012
- Accession Number
- ADA561781
Entities
People
- Robert Whatmough
Organizations
- Defence Science and Technology Group