We propose the design of an original scalable image coder/decoder that is inspired from the mammalians retina. Our coder accounts for the time-dependent and also nondeterministic behavior of the actual retina. The present work brings two main contributions: As a first step, (i) we design a deterministic image coder mimicking most of the retinal processing stages and then (ii) we introduce a ret...

These two statements, to which we shall refer as Statement 1 and Statement 2, while seemingly contradictory, are each partly true, though neither is complete. The first says that accommodation increases the size of the retinal image, that is it makes the image " larger ", but larger than what? The second says that in accommodation the retinal image is decreased in size, that is the image become...

Background & Aims: Age-related macular degeneration (ARMD) is one of the common retina disorders that can lead to loss of vision by increase in age. In this study, the efficacy of a non-invasive ultrasound technique for the evaluation of alastic properties of eye in the diagnosis of ARMD has been evaluated. Methods: For estimation of the elastic modulus of eye, spatial loading system designed a...

Members: László G. Nyúl [1] Balázs Erdőhelyi [2] Founded by: Research Fellowship from the Alexander von Humboldt-Stiftung [3] Collaborative Research Centre 539 (Germany) [4] Mobility support from the Deutscher Akademischer Austausch Dienst and from the Hungarian Scholarship Board Partners: Chair of Pattern Recognition, University of Erlangen-Nuremberg [5] (R. Bock, J. Meier, M. Mayer, J. Horneg...

Vitreoretinal surgery is challenging even for expert surgeons owing to the delicate target tissues and diminutive workspace in retina. In addition improved dexterity accuracy, robot assistance allows (partial) task automation. this work, we propose a strategy automate motion of light guide with respect surgical instrument. This automation instrument's shadow always be inside microscopic view, w...

A new neuron network model, as an assistance of image perception, is proposed in this paper. It is based on the retina. And it is shown that this neuron network model can both describe the transfer property of retina well and neglect subordinate details when processing an image. Specially, we also describe how to implement this model and make some experiments on it. Key-Words: Image Perception,...