Large-scale particle image velocimetry (LSPIV) provides a cost-effective, rapid, and secure monitoring tool for streamflow measurements. However, surveys of ground control points (GCPs) might affect the camera parameters through solution collinearity equations then impose uncertainty on measurement results. In this paper, we explore present an analysis image-based measurements with main focus p...

This paper describes a sensor model for the georeferencing of imagery acquired by CCD linear array sensors with along-track stereo viewing carried on airplane. The model consists of two main algorithms for direct and indirect georeferencing. If positioning instruments (GPS,INS) provide the sensor external orientation (position, attitude) during the image acquisition, the ground coordinates of p...

The measurement of ground control points is an important task for the absolute orientation of stereo models, for digital aerial triangulation or for the registration of satellite imagery. In the Digital Photogrammetric Systems existing today this task is usually completely performed by a human operator. There exist, however, methods, that can identify and/or localize control points or control s...

The extraction of spatial data from satellite imagery requires that precise sensor models are used to orientate images. This is particularly important with images acquired by linear sensors, such as SPOT, frequently pointed with large incidence angles. Image orientation with pixel accuracy requires that accurate ground control points are used. The acquisition of ground control is especially dif...

the evaluation and control of the trains induced vibrations needs even more attention in the case of underground tracks which passes near to monuments and historical sites. the rail corrugations which occur due to the wheels’ impulse loads during the operation period of underground railway tracks, usually amplify the ground borne noise and vibration. in the current study, the mentioned phenomen...

This article addresses the visual area coverage problem using a team of Unmanned Aerial Vehicles (UAVs). The UAVs are assumed to be equipped with a downward facing camera covering all points of interest within a circle on the ground. The diameter of this circular conic-section increases as the UAV flies at a larger height, yet the quality of the observed area is inverse proportional to the UAV’...

In this paper, the development of Indian Remote Sensing Satellite Serials is reviewed, the specifications of CARTOSAT-1 satellite platform and Sensor is introduced and compared with IKONOS、SPOT5 HRS. The positioning algorithm using Rational Function Model (RFM Model) of CARTOSAT-1 is described in detail. Experimentation is carried out using stereo pair of Beijing hilly area. The results show th...