Resistive Fuses: Analog Hardware for Detecting Discontinuities in Early Vision
Resistive Fuses: Analog Hardware for Detecting Discontinuities in Early Vision
复制标题
电阻保险丝：用于检测早期视觉不连续性的模拟硬件
DOI：
10.1007/978-1-4613-1639-8_2
复制
发表时间：
1989
期刊：
影响因子：
--
通讯作者：
J. Wyatt
中科院分区：
文献类型：
--
作者：
J. Harris;C. Koch;Jin Luo;J. Wyatt
运动、亮度、颜色和深度的不连续性检测是计算机视觉中一个研究得很好但很困难的问题。我们讨论我们的“电阻熔丝”电路-第一个硬件电路，明确实现模拟或二进制线过程中的控制方式。我们已经成功地设计和测试了一个模拟CMOS VLSI电路，其中包含一个1-D电阻网络的保险丝实施分段光滑表面插值。该网络的分割能力被证明为一个嘈杂的阶跃沿输入。我们从一些计算的考虑，密切相关的早期视觉算法的Koch，Marroquin和Yuille（1986）和布莱克和Zisserman（1987）推导出电阻熔丝的特定的电流-电压关系。我们讨论了芯片的电路实现和性能。在最后一节中，我们表明，我们的电阻性网络的模型中，电阻性熔断器没有内部动态有一个相关的李雅普诺夫函数，共内容。因此，即使在整个网络中存在任意寄生电容的情况下，网络也会在没有振荡的情况下收敛到稳定的解。
The detection of discontinuities in motion, intensity, color, and depth is a well studied but difficult problem in computer vision. We discuss our" resistive fuse" circuit-the first hardware circuit that explicitly implements either analog or binary line processes in a controlled fashion. We have successfully designed and tested an analog CMOS VLSI circuit that contains a 1-D resistive network of fuses implementing piece-wise smooth surface interpolation. The segmentation ability of this network is demonstrated for a noisy step-edge input.We derive the specific current-voltage relationship of the resistive fuse from a number of computational considerations, closely related to the early vision algorithms of Koch, Marroquin and Yuille (1986) and Blake and Zisserman (1987). We discuss the circuit implementation and the performance of the chip. In the last section, we show that a model of our resistive network-in which the resistive fuses have no internal dynamics-has an associated Lyapunov function, the co-content. The network will thus converge, without oscillations, to a stable solution, even in the presence of arbitrary parasitic capacitances throughout the network.