It is to the interest of both the photogrammetrist and the non-expert user that image-based measuring techniques and user-oriented packages applied to architectural and archaeological documentation be kept as simple as possible. In this context, the potential of single-image techniques should be exhausted, confining stereoscopic procedures to irregularlyshaped surfaces. This contribution discus...

W. A. Dorigo, K. Scipal, R. M. Parinussa, Y. Y. Liu, W. Wagner, R. A. M. de Jeu, and V. Naeimi Vienna University of Technology, Institute of Photogrammetry and Remote Sensing, Vienna, Austria ESA, ESTEC, Noordwijk, The Netherlands VU University Amsterdam, Faculty of Earth and Life Sciences, Department of Hydrology and Geo-Environmental Sciences, The Netherlands School of Civil and Environmental...

This paper attempts to describe the general state of the art of trajectory determination for airborne and terrestrial photogrammetry and remote sensing for mapping. We discuss the need, applications, technology, models, estimation methods and exploitation of trajectories. The paper also summarizes the research done in the past, at the former Institute of Geomatics and currently in GeoNumerics.

The aim of the study is to produce three dimensional (3D) data from radiographs using photogrammetric techniques. Photogrammetry is defined as the process of measurement on an object’s images taken in accordance with certain rules instead of direct measurements on the object. This term includes whole operations of taking, processing, analyzing and evaluating the image. Most important advantage ...

Orthoimage and orthomosaic production has traditionally been a sequential process with many steps. With digital photogrammetry a part of the steps have been automated, but still the process requires a lot of operator effort. Now that digital cameras are entering the market and the number of images to be processed is increasing there is a clear need to automate the whole workflow as much as poss...

The popularity of automatic photogrammetric techniques has promoted many experiments in underwater scenarios leading to quite impressive visual results, even by non-experts. Despite these achievements, a deep understanding of camera and lens behaviors as well as optical phenomena involved in underwater operations is fundamental to better plan field campaigns and anticipate the achievable result...

An extensive analysis of the quality of the extraction results of a subpixel line detector and a subpixel edge detector is carried out. The localization quality of line and edge points in the presence of noise is analyzed analytically, and new formulas describing this relationship are derived. Tests on synthetic noisy images show the formulas to hold very well in practice. Experiments on real i...

Y. LI*{, P. GONG{§ and T. SASAGAWA" {International Institute for Earth System Science, Nanjing University, Nanjing, Jiangsu, 210093, PRC {Institute of Remote Sensing Applications, Chinese Academy of Sciences, 100101, Beijing, PRC §Center for Assessment and Monitoring of Forest and Environmental Resources (CAMFER), UC Berkeley, 151 Hilgard Hall, Berkeley, CA, 94720-3110, USA "PASCO Corporation, ...

When Dr. Carl Pulfrich 1909 introduced the “Vacation Course in Stereophotogrammetry”, terrestrial photogrammetry has driven most applications. He, the founder of stereophotogrammetry, was convinced, that after the introduction of the stereo comparator (1901) a new milestone was needed to improve the accuracy of photogrammetric object reconstruction. Obviously, there is nothing better than initi...

Three dimensional terrestrial laser scanning has already proved its potential in several application fields, such as topography, archaeology, mining and cultural heritage protection. Beside these areas a new demand emerged: accurate point cloud acquisition and post-processed results in engineering survey. This technology could broaden the field of engineering survey, although the limited accura...