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Known methods of recording the spatial configuration of the surface of the inventoried object either renden incomplete information about the spatial configuration of this surface, or do not record depressions of the surface inventoried photographically. The proposed method, according to our own solutions, named the photointerference method, in which contour lines are created in the consequence of interference of the grid thread image with their shadow on the photographed surface, is the method allowing great simplification of image analysis and increasing research possibilities.
Digital processing of areal photographs consists of various computer operations in which the photograph forms the basic input data set and the universally accepted form of final results. In order for the image to become "legible" input data for the computer, it must first be given an appropriate digital form. In principle, this can be achieved in two ways: digitalization of areal photographs (an appropriate processor is needed); or direct digital recording of image (as in scanners). Typical tasks of digital processing include, among others: visualization of digital image, correcting of geometrical deformations, creation of new images - compositions of the so called spectral channels. This paper shows examples of these types of tasks, with regard to both initially areal photographic images, and images recorded by scanning. Particular attention is given to the problem of digital image visualization. Both the results achieved during the last few years using the ODRA 1325 computer, and the most recent results obtained with an IBM AT class personal computer are discusse
This is an important issue for the evaluation of behaviour of the wheat mass during the harvest. A stem developes natural asymmetries, which determine the character of its movement during the interaction with the pickup reel and knife. The dynamics of the bending line recorded on a film allows for assessing, provided the exciting force is known, the material constants of the plant after its geometry has been determined, i.e. ∆z and ∆G. Apparently, the problem is solvable only in the case of very simple constitutive models. The most important result obtained within the present study is the confirmation of thehypothesis of pronounced polarity of the medium.
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