Now showing items 1-10 of 1418
A photogrammetric method for single image orientation and measurement
The aim of this paper is to present a photogrammetric method for determining the dimensions of flat surfaces, such as billboards, based on a single digital image. A mathematical model was adapted to generate linear equations ...
Generating virtual images from oblique frames
Image acquisition systems based on multi-head arrangement of digital camerasare attractive alternatives enabling a larger imaging area when compared to a single framecamera. The calibration of this kind of system can be ...
DETERMINATION of THE INDIRECT ORIENTATION of ORBITAL PUSHBROOM IMAGES USING CONTROL STRAIGHT LINES
The aim of this paper is to present an experimental assessment of two models that use "control lines'' for the indirect orientation of pushbroom imagery. Since pushbroom image acquisition is not instantaneous, six exterior ...
A semi-automatic method for indirect orientation of aerial images using ground control lines extracted from airborne laser scanner data
This paper presents a method for indirect orientation of aerial images using ground control lines extracted from airborne Laser system (ALS) data. This data integration strategy has shown good potential in the automation ...
Exterior orientation of hyperspectral frame images collected with UAV for forest applications
This paper describes a preliminary study on the image orientation acquired by a hyperspectral frame camera for applications in small tropical forest areas with dense vegetation. Since access to the interior of forests is ...
Automatic Measurement of Control Points for Aerial Image Orientation
This paper presents an automatic workflow for measuring natural ground control points (GCPs) in aerial images. The approach is based on the acquisition of multi-scale fisheye vertical terrestrial images over distinguishable ...