This paper focuses on a special path following task arising from the needs of vision-based autonomous guidance: a given front point of a car-like vehicle that is within the look-ahead range of a stereo vision system, must follo w a prespeci ed Cartesian path. Solution to this path follo wing problem is pro vided by a new feedforward/feedback con trol strategy where the feedforward is determined...

Our prior studies have demonstrated that the transient-vergence system responds preferably to dichoptic stimulus pairs that contain the highest combined energy, regardless of dichoptic differences in spatial frequency, contrast, orientation, or luminance polarity (Edwards, M., Pope, D. R., & Schor, C. M. (1998), Vision Research 38, 705; Pope, D. R., Edwards, M., & Schor, C. M. (1999) Vision Res...

A key feature to ensure desirable convergence properties in an interior point method is the appropriate choice of an updating rule for the barrier parameter. In this work we analyze and describe updating rules based on the use of a vector of barrier parameters. We show that these updating rules are well defined and satisfy sufficient conditions to ensure con vergence to the correct limit points...

Convergence insufficiency (CI) is a prevalent binocular vision disorder with symptoms that include double/blurred vision, eyestrain, and headaches when engaged in reading or other near work. Randomized clinical trials support that Office-Based Vergence and Accommodative Therapy with home reinforcement leads to a sustained reduction in patient symptoms. However, the underlying neurophysiological...

We explore the relationship between weighted averaging and stochastic approxima tion algorithms and study their convergence via a sample path analysis We prove that the convergence of a stochastic approximation algorithm is equivalent to the con vergence of the weighted average of the associated noise sequence We also present necessary and su cient noise conditions for convergence of the averag...

We study periodic homogenization and 3D-2D dimension reduction by Γ(π)-con-vergence of heterogeneous thin films whose the stored-energy densities have no polynomial growth. In particular, our results are consistent with one basic facts nonlinear elasticity, namely necessity an infinite amount energy to compress a finite volume matter into zero volume. However, not noninterpenetration matter.

Cooperatives need consideration in the making of business strategy decisions. Forecasting can assist cooperatives deciding on their strategy. This study used n-orde Fuzzy Time Series Chen. Chen captures data patterns formed by two or more historical each period called fuzzy logic relation (FLR). The pattern FLR is to be projected forecasting future conditions. 2-orde, 3-orde, and 4-orde with 1-...

In the accompanying paper we reported that intrasaccadic vergence enhancement during combined saccade-vergence eye movements reflects saccadic dynamics, which implies the involvement of saccadic burst signals. This involvement was not predicted by the Multiply Model of Zee et al. We propose a model wherein vergence enhancement is the result of a multiplicative interaction between a weighted sac...

With the broader use of stereoscopic displays, a flurry of research activity about the accommodation-vergence conflict has emerged to highlight the implications for the human visual system. In stereoscopic displays, the introduction of binocular disparities requires the eyes to make vergence movements. In this study, we examined vergence dynamics with regard to the conflict between the stimulus...

Single-unit discharges were recorded in the medial superior temporal area (MST) of five behaving monkeys. Brief (230-ms) horizontal disparity steps were applied to large correlated or anticorrelated random-dot patterns (in which the dots had the same or opposite contrast, respectively, at the two eyes), eliciting vergence eye movements at short latencies [65.8 +/- 4.5 (SD) ms]. Disparity tuning...