Computation of Smooth Optical Flow in a Feedback Connected Analog Network
Computation of Smooth Optical Flow in a Feedback Connected Analog Network
复制标题
反馈连接模拟网络中平滑光流的计算
DOI：
10.1109/iscas.2004.1329137
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发表时间：
1998
期刊：
影响因子：
--
通讯作者：
R. Douglas
中科院分区：
文献类型：
--
作者：
A. Stocker;R. Douglas
1986 年，Tanner 和 Mead [1] 在 VLSI 中实现了一个有趣的约束满足电路，用于全局运动传感。我们在这里报告一种新的和改进的 VLSI 实现，它可以在二维视野中提供平滑的光流和全局运动。光流的计算是一个不适定问题，表现为孔径问题。然而，可以通过使用正则化方法来估计光流，其中在必须最小化的全局能量泛函方面引入额外的约束。我们展示了 Hom 和 Schunck [2] 对计算平滑光流的算法约束如何映射到等效电子网络的物理约束上。
In 1986, Tanner and Mead [1] implemented an interesting constraint satisfaction circuit for global motion sensing in a VLSI. We report here a new and improved a VLSI implementation that provides smooth optical flow as well as global motion in a two dimensional visual field. The computation of optical flow is an ill-posed problem, which expresses itself as the aperture problem. However, the optical flow can be estimated by the use of regularization methods, in which additional constraints are introduced in terms of a global energy functional that must be minimized . We show how the algorithmic constraints of Hom and Schunck [2] on computing smooth optical flow can be mapped onto the physical constraints of an equivalent electronic network.