Results 211 to 220 of about 7,671 (261)
Some of the next articles are maybe not open access.
1985
Aerial photos are usually classified according to the inclination of the camera axis at the moment of exposure. Thus, photos are termed either verticals, low obliques, or high obliques. Verticals are taken with the optical axis of the camera in a vertical position (Fig.
openaire +1 more source
Aerial photos are usually classified according to the inclination of the camera axis at the moment of exposure. Thus, photos are termed either verticals, low obliques, or high obliques. Verticals are taken with the optical axis of the camera in a vertical position (Fig.
openaire +1 more source
Stereotypes for Aerial Photo Interpreters
Journal of Forestry, 1950Abstract In the past few years much progress has been made in the use of aerial photographs in forestry, and many new ideas to aid the photo interpreter have arisen. The author presents an explanation of his stereotype cards which are designed to correlate the aerial view with the ground view and plot data and have the material ...
openaire +1 more source
1985
There are basically three methods for acquiring aerial photos — purchase existing photos, contract to have the photography flown, and take one’s own photos. The first is probably the cheapest of the three methods but one is limited to the photography available.
openaire +1 more source
There are basically three methods for acquiring aerial photos — purchase existing photos, contract to have the photography flown, and take one’s own photos. The first is probably the cheapest of the three methods but one is limited to the photography available.
openaire +1 more source
Aerial photo interpretation in Managua
Cities, 1983Abstract World-wide urbanization tendencies require new techniques for problem solving which have to be adapted to the regional context as far as degree of urbanization, socioeconomic conditions, resources, technology, etc are concerned. Each planning decision needs basic regional data which have to meet the requirements of the actual problem.
openaire +1 more source
Aerial Photographs and Photo-Interpretation
South African Geographical Journal, 1961Abstract A comprehensive picture of the value of air photographs in geographic research was presented including types and general characteristics of air photos, and their practical utilization. The field of photo-interpretation is wide and from the geographical standpoint still largely unexploited.
openaire +1 more source
DETECTION OF TRACKS IN AERIAL PHOTOS BY THE GIBBS SAMPLER
International Journal of Pattern Recognition and Artificial Intelligence, 2003A problem of automatic detection of tracks in aerial photos is considered. We adopt a Bayesian approach and base our inference on an a priori knowledge of the structure of tracks. The probability of a pixel to belong to a track depends on how the pixel gray level differs from the gray levels of pixels in the neighborhood and on additional prior ...
openaire +1 more source
1983
Aerial photo volume tables have been used by foresters and others to estimate board feet and cubic feet of standing timber gross volume in the United States for a number of years (Paine 1981). These tables have been very useful to assist in the stratfication of timber stands, thereby making ground sampling more efficient.
openaire +1 more source
Aerial photo volume tables have been used by foresters and others to estimate board feet and cubic feet of standing timber gross volume in the United States for a number of years (Paine 1981). These tables have been very useful to assist in the stratfication of timber stands, thereby making ground sampling more efficient.
openaire +1 more source
Patterns of Aerial Photo Weather in Canada
The Canadian Surveyor, 1971Weather suitable for high altitude aerial survey photography is defined in terms of cloud cover, horizontal visibility, and solar altitude. With these criteria established, relevant weather observation data, stored in the electronic archives of the Meteorological Service of Canada, were selected and used to compute a single figure value of average ...
openaire +1 more source