SUMMARYIn this paper, a fuzzy spline interpolation technique is proposed to give a fuzzy model of sampled freehand curves that involve vagueness (associatedwith roughness is drawing) in their positional information. The fuzzy model is an extension of ordinary spline curves. Because the model inherits geometric characteristics from spline curves and can be handled as a fuzzy set, it provides a fuzzy inference approach to the geometric meaning of the drawer's original intention, allowing for the vagueness of the drawn freehand curves. An application of the model to freehand curve segmentation demonstrates the necessity of the method.
In this paper, a technique called "fuzzy spline interpolation" is first introduced t o handle curves which involve vagueness in their positional information. Then, the Fuzzy Spline Curve Identifier (FSCI), which performs on-line identification of freehand curves based on the fuzzy spline interpolation technique, is proposed. FSCI identifies a freehand curve as a sequence of curve segments each of which is categorized into one of seven fundamental curve classes: line, circle, circular arc, ellipse, elliptic arc, closed free curve or open free curve. Because FSCI uses fuzzy approaches and allows for vagueness in drawing, i t works as a flexible and effective human interface for use with pen and tablet systems.
We made an original program P-16 using Humphrey field analyzer, which can evaluate the peripheral visual field within one minute after measuring the threshold test (24-2). This program was performed in 134 glaucoma eyes, 4 pigmentary degeneration eyes and 4 hemianopic eyes. We were able to classify the progression of glaucoma by measuring mean deviation with 24-2 program and P-16 program (24dB, 10dB) using static visual field analyzer. We conclude that these program were very useful in daily clinic because these programs were able to detect peripheral visual defect not only in glaucoma but in other diseases.
Adult strabismus surgery is generally avoided because the condition involves different sensory problems and past histories than those of infant strabismus. Also, adults undergo surgery for reasons that are different than those of infants, for example, for cosmetic purposes, double vision and asthenopia. The most important purpose of surgery is to reduce complaints of vision problems. We repost the results of strabismus surgery in 48 adult patients with horizontal strabismus, of which there are two types: exotropia and esotropia. There were 33 cases of exotropia and 15 cases
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