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Laser Photography - Examples of Processing of Image Information

100%
Piszczek M.
Acta Physica Polonica A
|
2013
|
vol. 124
|
issue 3
546-549
EN
Modern cameras working in various spectral bands can be successfully applied in many areas of our lives. Observational capabilities of modern cameras are widely utilized in the area of public security systems while measurement functionalities of cameras are the domain of Machine Vision Systems used mainly in industry applications. The development of vision techniques and data processing methods changed the perception of vision systems as a multifunction, observation and measurement systems. Laser photography device, developed in the Institute of Optoelectronics, Military University of Technology is an example of such imaging device. One of properties of time-spatial framing method is the ability to perform complex spatial analysis of observed scene thanks to proper control of acquisition parameters and metadata processing. This property can be very useful especially in real-time spatial and geographic information systems. The paper presents theoretical applications of time-spatial framing method and first experimental results.
2
Content available remote

Metadata in a LPS

100%
Piszczek M.
Acta Physica Polonica A
|
2012
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vol. 122
|
issue 5
858-861
EN
This paper is concerned with the use of metadata in a laser photography system. Metadata are all the data registered by additional sensors in the laser photography system. The paper is concerned with a problem of how to efficiently manage and use system metadata. The solution of using a general image metadata structure for every information unit is proposed. Various aspects of using additional data for proper image interpretation in the laser photography system are presented.
3
Content available remote

Data Fusion in Application of Image Information

100%
Piszczek M.
Acta Physica Polonica A
|
2011
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vol. 120
|
issue 4
716-719
EN
This paper presents a new look at meaning of metadata in applications using image information. Information potential of images is closely associated with the access to such data as internal and external orientation. It is also essential that advanced vision systems are characterized by individual sets of metadata like e.g. range-gated imaging technology. Linking data mentioned above offers synergetic effects. The camera range-gated imaging is getting functionalities characteristic of the radar and scanner 3D. Technology of augmented reality in connecting with the database offers the functionality of the autonomous guide to real world. Possible functionalities are of course a lot and they depend on the equipment configuration of applied sensor sets. Expressed deliberations about data fusion in vision information systems are based on research activity. Expressed issues concerning modeling, equipment configurations and model results of examinations, point on the great information potential available in advanced vision systems.
4
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Multicriterial Analysis of Explosives in the THz Range

51%
Ryniec R., Piszczek M., Szustakowski M.
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|
issue 6
1235-1238
EN
The increasing interest in the development of identification methods of explosives in THz region over the past few years has been observed because of potential terrorist threats. To determine specific spectra properties of materials both possible spectroscopic methods - time domain spectroscopy and Fourier transform infrared spectroscopy are used to analyze different classes of compounds. This paper deals with an identification problem of more than one compound. This task was solved mathematically by means of the following methods: Monte Carlo including principal components analysis methods and analytic methods. Investigations were limited to a detector, which based on a single-frequency quantum dot matrix in 0.3 ÷ 1.3 THz range. The mathematical analysis also includes the atmosphere influence on propagation of THz waves. By means of the presented methods we indicated fourteen optimal frequency points and next we managed to identify one explosive from a set of ten explosives.
5
Content available remote

Measurement Stand for TeraEYE Inspection

51%
Piszczek M., Kowalski M., Szustakowski M.
Acta Physica Polonica A
|
2011
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vol. 120
|
issue 4
720-724
EN
Image fusion can be used as one of imaging methods. Connection of images acquired using different acquisition methods can deliver information invisible for traditional one imaging technique. Visible and thermal images connected in one image give information about shapes and temperature map of objects seen by cameras. If we connect stereoscopic visible image and thermal image we will have three-dimensional object model covered with temperature map. Dividing three-dimensional objects on elementary surfaces we can model this object energetically. Energetic modeling of measurement scene allows verifying measurement data acquired from devices working in terahertz frequency range. This method requires many measurement scene parameters to be registered. Some of these parameters can be used in a hybrid modelling process.
6
Content available remote

Elements of Augmented Reality for Vision Systems

51%
Piszczek M., Zarzycki M., Szustakowski M.
Acta Physica Polonica A
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2012
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vol. 122
|
issue 5
950-953
EN
The purpose of this article is a discussion about the ongoing research at the Institute of Optoelectronics, Military University of Technology. The aim of the research is obtaining the introduction augmented reality elements in vision systems. Technology of augmented reality in connecting with applied sensor sets can strengthen and expand our sensory modalities. The process of data acquisition and processing can be implemented using variable technologies, appropriate for application. At the conclusion we briefly presented two applications currently under tests.
7
Content available remote

Hidden Object Detection System Based on Fusion of THz and VIS Images

51%
Kowalski M., Palka N., Piszczek M., Szustakowski M.
Acta Physica Polonica A
|
2013
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vol. 124
|
issue 3
490-493
EN
Terahertz imaging makes it possible to acquire images of objects concealed underneath clothing by measuring the radiometric temperatures of different objects on a human subject. Finding objects hidden under clothes is one of key issues of public places security. A possible solution of this problem is a multispectral, terahertz-based screening system with implemented image fusion algorithm. The result of the fusion is a new image which gives more information and is more suitable for human perception. An imaging system is usually composed of various subsystems. Many of the imaging systems use imaging devices working in various spectral ranges. The aim of our studies is to detect and visualize objects hidden under clothing. Detection of potentially dangerous objects is important, but without proper visualization, can be difficult to utilize. Our goal is to build a system harmless to humans for screening and detection of hidden objects using a THz and VIS cameras. The presented system draws attention not only on the properties offered by a single camera but also on the potential of synergetic effects of the system by using the fusion of data registered by different sensor units. In this paper we present the multispectral passive imaging system for hidden threats visualization based on THz and VIS cameras.
8
Content available remote

The Role of a Laser Photography Device Illuminator in Acquisition of Spatial Information

45%
Piszczek M., Kowalski M., Szustakowski M., Rutyna K., Ludwikowski K.
Acta Physica Polonica A
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2012
|
vol. 122
|
issue 5
862-865
EN
The paper is concerned with practical studies of illuminator role in the process of acquisition of spatial information with use of laser photography device. The laser photography device working according to the time-spatial framing method needs both acquisition and illumination process to happen in a very short-time. Fulfillment of both conditions is necessary for proper operation of this device. Using a specialized laser illuminator determines the growth of information potential of the laser photography device and allows reducing parasitic impact of daylight. The presented solution not only improves typical vision systems parameters but it introduces new quality for imaging devices.
9
Content available remote

Laser Photography Device - Spatial Parameters of Imaging

39%
Piszczek M., Kowalski M., Karol M., Rutyna K., Zarzycki M., Szustakowski M., Ludwikowski K.
Acta Physica Polonica A
|
2013
|
vol. 124
|
issue 3
550-553
EN
Laser photography device is an imaging device developed in the Institute of Optoelectronics, Military University of Technology and it is an example of modern image acquisition device. The laser photography device allows to define a 3D observation scene thanks to short-time scene illumination and image acquisition method. This device works according to time-spatial framing method. In the paper, basics of time-spatial framing method are explained. Special attention is given to time parameters of device and their influence to spatial parameters of registered images. In this paper the laser photography device and results of chosen experiments are presented and described. Experimental results presented in the paper show the potential and possibilities of using the laser photography device as a camera for observation and measurement applications.
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