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Simulating Biological Vision with Hybrid Neural Networks

机译:用混合神经网络模拟生物视觉

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We present an example of how vision systems can be modeled and designed byintegrating a top-down computationally-based approach with a bottom-up biologically-motivated architecture. The specific visual processing task we address is occlusion-based object segmentation-the discrimination of objects using cues derived from object interposition. We construct a model of object segmentation using hybrid neural networks-distributed parallel systems consisting of neural units modeled at different levels of abstraction. We show that such networks are particularly useful for systems which can be modeled using the combined top-down/bottom-up approach. Our hybrid model is capable of discriminating objects and stratifying them in relative depth. In addition, our system can account for several classes of human perceptual phenomena, such as illusory contours. We conclude that hybrid systems serve as a powerful paradigm for understanding the information processing strategies of biological vision and for constructing artificial vision-based applications. vision, neural networks, hybrid systems, biologically-based modeling, human perception.

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