Lighting plays a major role in photography. Professional photographers use elaborate installations to light their subjects and achieve sophisticated styles. However, lighting moving subjects performing dynamic tasks presents significant challenges and requires expensive manual intervention. A skilled additional assistant might be needed to reposition lights as the subject changes pose or moves,...

Department of Mathematics, University of Coimbra, Portugal Reference databases for the accuracy assessment of land cover maps are assumed to represent the true land cover in a set of selected locations. Although, the elaboration of reference databases through field visits or photo interpretation of aerial images is a hard and difficult task due to uncertainty in the assignment of the most corre...

Introduction A central scientific goal of image understanding research is to investigate ways of bringing diverse sources of knowledge to bear on the problem of interpreting images. An important source of knowledge used by humans in the interpretation of aerial photographs is the topographic map. This paper describes some initial experiments in the use of map knowledge to automate an important ...

The U.S. Geological Survey (USGS) Earth Resources Observation and Science (EROS) Center archives electronic science collections that total over two petabytes in size and over 100,000 rolls of aerial and satellite film. Limited resources, the evolution of missions, and recommendations from advisory committees have led to the development of a scientific records appraisal process as a means for de...

of stereoscopic landscape analysis, and then determine the soil types that occur in each map unit by field inspecA method to enhance manual landform delineation using phototion of the soil at representative sites. A common inspecinterpretation to map a larger area is described. Conventional aerial tion density is one observation per one to four map photo-interpretation (API) maps using a geo-pe...

the hyrcanian forests have been highly exploited in recent decades by human impacts. easy access, abundance and variety of valuable forest yields have led to population growth density, creation of new residential areas and deforestation activities. change detection is one of the main methods of management and evaluation of natural resources. we investigated forest changes in southern surroundin...

Sugarcane is an important economic resource for many tropical countries and optimizing plantations is a serious concern with economic and environmental benefits. One of the best ways to optimize the use of resources in those plantations is to minimize the occurrence of gaps. Typically, gaps open in the crop canopy because of damaged rhizomes, unsuccessful sprouting or death young stalks. In ord...

This paper deals with the various aspects of the Gorizia old downtown (Italy) 3D virtual model production obtained by a suitable integration of laser and imaging data, both acquired either by means of a helicopter and a terrestrial surveying. The virtual reconstruction can be compare with different perspective maps of the city to underline its transformation. An aerial high-density (15 points/m...