SVIBOR - Project code: 2-16-322

MINISTRY OF SCIENCE AND TECHNOLOGY

Strossmayerov trg 4, HR - 10000 ZAGREB
tel.: +385 1 459 44 44, fax: +385 1 459 44 69
E-mail: ured@znanost.hr

SVIBOR

SVIBOR - Collecting Data on Projects in Croatia

Project code: 2-16-322


QUANTITATIVE AND INFORMATION METHODS IN THE GRAPHIC ARTS


Main researcher: PAŠAGIĆ, HUSEIN (143150)


Assistants
Type of research: applied
Duration from: 03/01/91. to 03/01/94.
Papers on project (total): 30
Institution name: Grafički fakultet, Zagreb (128)
Department/Institute: Faculty of Printing, Zagreb
Address: Getaldićeva 2
City: 10000 - Zagreb, Croatia
Communication
Phone: 385 (0)1 216-444
Fax: 385 (0)1 2335-397
E-mail: dekan@magrf.grf.hr
Summary: The problems bound to the screen model which are best represented by the colour reproduction, have been investigated in the project. The testing has been performed on the laser illuminator in order to convert the screen dot into the regular geometrical shape. The second part of the investigation refers to the technique of the recognition of the geometrical and free shape in order to improve the routines of the optical scanner. The complicated information systems, specially process systems with graphic operating interface, have specific Hw and Sw structure which enables the generating of process images and menus, picture integration and searching the review presentation tree. The whole technologic structure direct to the technique of the structure programming and algorithm languages in the shape of REAL TIME of the operational system. Data base in the text and image processing and CAD system have been specially studied. Through the theoretical and experimental investigations the possibilities of implying the IR spectral channel 8 - 13 millimicron for investigation the quality of the stocks Eg. bank notes, personal documents etc. have been found out. The necessary software has been done to investigate the quality of paper by thermographic methods. The model of colour adsorption on the stiff base has been tested and the quantitative indicators of the testing method chosen from the fields of electrochemistry, the method of the chronoampermetric with double potential jump and measuring the curves depending on the stream and time, have been suggested. The measuring of the charge density shows two monolayers of the adsorbed molecule, and the dependence of the stream on time, the possibility of the phase transition of the observed system. In the part of the optimal methods the work has been directed to the investigation in the field of the numeric geometry. The purpose of the article is the overview of the existing methods, the choice of the suitable ones and the development of the necessary methods for the optimal cutting of the paper packing. The algorithms for investigation of the space/plane positions of the bound convex and non convex polyhedrons and the determination of their union and intersection have been developed, as the most important steps in the development of the common algorithm of the optimal cutting of the paper packings. The even curves and planes have to be generated in many computer graphic applications. Polygon nets which are in some parts linear, satisfy the representation of the even objects but will not satisfy the curved objects. To show the curved objects in the computer graphics they investigate continuous parameters of the cubic curves and bicubic planes. The reason for that is that they: - allow manifold values for a point T(x,y) - show infinite slopes - allow the local control - they are efficient in calculations - allow the sophistication by subdivision and addition of nodes, easy presentation and interactive manipulation. Effort has been made to show precisely the real object with the minimal number of points, i.e. by occupying the memory of the computer, by help of mathematical methods in the computer graphics.

Keywords: optimization, databases, network, computer graphics, physics of print and colour, termography

Research goals: The possibilities of adaption of the existing algorithms and methods on the graphic processe. The production of software for graphic processe. Data bases and networks. Protection of the stocks. Compatibility of the resolution levels. Syntheses of the manifold reproduction for laser systems and film processing.

COOPERATION - PROJECTS


  1. Name of project: 2-99-120 Istraživanje procesa i materijala u grafičkoj tehnologiji
    Name of institution: Grafički fakultet
    City: 10000 - Zagreb, Croatia

COOPERATION - INSTITUTIONS


  1. Name of institution: Fakultet elektrotehnike i računarstva
    Type of institution: University/Faculty
    Type of cooperation: Occasional exchange of information
    City: 10000 - Zagreb, Croatia

  2. Name of institution: Fakultet strojarstva i brodogradnje
    Type of institution: University/Faculty
    Type of cooperation: Occasional exchange of information
    City: 10000 - Zagreb, Croatia

  3. Name of institution: Brodarski institut
    Type of institution: State institute
    Type of cooperation: Occasional exchange of information
    City: 10000 - Zagreb, Croatia
Other information about the project.
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Last update: 11/10/95
Information: svibor@znanost.hr