Browsing by Subject "kamera cyfrowa"

Now showing 1 - 3 of 3

Access status: Open Access ,
Kamera cyfrowa zintegrowana z reprogramowalnym systemem przetwarzania obrazów
(Wydawnictwa AGH, 2009) Mik, Łukasz; Gorgoń, Marek
In the paper an architecture of digital camera based on Spartan-3 FPGA device is presented. Acquisition and image processing systems have been integrated in a compact case. The camera is able to process 5 frames per second. Image processing algorithms are effectively executed in FPGA resources.
Access status: Open Access ,
Współczesne cyfrowe sensory wizyjne w fotogrametrii bliskiego zasięgu
(Wydawnictwa AGH, 2006) Sawicki, Piotr
Digital images acquisition using optoelectronical systems has been predominant in close range photogrammetry for a dozen years. Digital imaging sensors are the basic hardware element of on-line and off-line photogrammetric 3D measurement systems. The classification of optical digital sensors is presented in the paper. The technical parameters of solid state sensors of CCD and CMOS type were determined and the characteristics were compared. Various types of optical digital sensors - digital video cameras, still video cameras, high-resolution digital cameras, scanning cameras, panorama cameras and high-speed cameras - used in close range applications are discussed. An analysis of the current potential of photogrammetric close range digital imaging sensors and its future development is formulated.
Access status: Open Access ,
Wykonywanie naziemnych zdjęć cyfrowych o ściśle określonej orientacji
(Wydawnictwa AGH, 2006) Bernasik, Jerzy; Mikrut, Sławomir
Taking surface images of precisely known (at the level of a theodolithe accuracy) elements of external orientation makes a rarely taken chance in terrestrial photogrammetry. Usually control points are used to increase the accuracy of the processing images when the orientation is not enough precisely known. It is particularly difficult - apparently - in case of photographs taken with non-metric cameras. The solution solved by the authors in the measurements of shape anomalies of slender buildings was based on a prototype instrument allowing the installation of a KODAK DCS 760 camera on a Theo 010 theodolithe. In the paper the authors present the results of studies enabling them to assess the accuracy of the orientation level of pictures. The described solution makes a new chance for the digital photogrammetry of a close-to-zero distance by widening the range of economically justified applications of this method in engineering and construction. The application of author's algorithms of the detection of features in a digital image allowed the analysis and measurement with a sub-pixel accuracy. This enables an accurate definition of the terrain co-ordinates of the measured points (elements).