The cotyle implantate is abraded in the body of patient and its shape changes. Information about the magnitude of
abrasion is contained in the result contour map of the implantate. The locations and dimensions of abraded areas can be
computed from the contours deformation. The method called the single-projector moire topography was used for the
contour lines determination. The theoretical description of method is given at first. The design of the experimental set-up
follows. The light grating projector was developed to realize the periodic structure on the measured surface. The method
of fringe-shifting was carried out to increase the data quantity. The description of digital processing applied to the moire
grating images is introduced at the end together with the examples of processed images.
In this paper, a new automatic glaucoma diagnostics method which enables to determine the probability of glaucoma occurrence in a studied eye is described. This method is based on the computer image analysis of two-dimensional images of the blind spot of the human eye retina and on the successive statistical evaluation of the obtained data. First, the characteristic symptoms of glaucoma are shortly described. Next, a suitable numerical parameter of the retina blind
spot is defined. The computer image analysis method of the automatic determination of the mentioned parameter is described and it is applied to a set of normal healthy eye images and to a set of glaucomatous eye images. The probability of glaucoma occurrence for each value of the introduced parameter is suitably defined and computed by virtue of the statistical evaluation of the obtained results.
A new method of the optic disc glaucomatous damage detection and the diagnosis determination is presented in this paper. This method is based on the measurement of the relative size of the representative pallor area on the color digital optic disc image and its evaluation using a statistical method and computer-simulated artificial neural net. Finally, the dependence of the relative pallor area size of the glaucomatous eye and glaucomatous visual field changes is studied.
This paper deals with some present methods of the photodetection of a human eye retina image and the following computer analysis of the obtained image dates. There are considered the detection and the computer quantitative evaluations of characteristic symptoms of glaucoma on the human eye retina. These symptoms and their numerical parameters, that are usually used, are shortly described. The main part of this paper describes the methods of the creation and the computer analysis of a three-dimensional map of the blind spot of the human eye retina (papila) and the adjacent area of the retina. The changes important for diagnostics of the above mentioned three-dimensional map are then detected through the computer analysis. Specially, the methods of scanning laser tomography and stereophotographic measurement of the mentioned part of retina are considered. Some concrete results ascertained by the mentioned methods are also shown. Lastly, our suggestions of methods of analyzing two-dimensional images of retina obtained by the colour fundus camera are shown.