A two-dimensional, object-based analog VLSI visual attention system

Charles S. Wilson, T. Morris, S. DeWeerth
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引用次数: 15

Abstract

A two-dimensional object-based analog VLSI model of selective attentional processing has been implemented using a standard 1.2 /spl mu/m CMOS process. This chip extends previous work modeling object-based selection and scanning by incorporating the circuity and architectural changes necessary for two-dimensional focal plane processing. To balance the need for closely spaced large photodetectors with the space requirements of complex in-pixel processing, the chip implements a multiresolution architecture. The system has he ability to group pixels into objects; this grouping is dynamic, driven solely by the segmentation criterion at the input. In the demonstration system, image intensity has been chosen for the input saliency map and the segmentation is based on spatial lowpass filtering followed by an intensity threshold. We present experimental results.
一个二维的,基于对象的模拟VLSI视觉注意系统
采用标准的1.2 /spl mu/m CMOS工艺,实现了一个基于二维对象的选择性注意处理模拟VLSI模型。该芯片通过结合二维焦平面处理所需的电路和架构变化,扩展了以前的基于对象的建模和扫描。为了平衡对紧密间隔的大型光电探测器的需求与复杂的像素内处理的空间要求,该芯片实现了多分辨率架构。该系统具有将像素分组为对象的能力;这种分组是动态的,完全由输入端的分割标准驱动。在演示系统中,选择图像强度作为输入显著性图,并基于空间低通滤波和强度阈值进行分割。我们给出了实验结果。
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