TRAJECTORY FORMATION AND HANDWRITING - A COMPUTATIONAL MODEL
TRAJECTORY FORMATION AND HANDWRITING - A COMPUTATIONAL MODEL
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DOI：
10.1007/bf00335240
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发表时间：
1982-01-01
影响因子：
1.9
通讯作者：
IVALDI, FAM
中科院分区：
文献类型：
--
作者：
MORASSO, P;IVALDI, FAM
提出了从点对点运动到手写体轨迹形成的不同方面的计算模型。该模型基于基本曲线元素（笔画）的组成机制，该机制将轨迹形成的空间和时间方面分开。同时，该模型提出了一种存储和描述手臂运动的方法，作为中风描述符列表。实验轨迹数字化并分析了几种类型的运动：点对点运动轨迹、闭合运动轨迹、带拐点运动轨迹、螺旋运动轨迹和手写运动轨迹。计算了轨迹的速度曲线和曲率曲线，并对模型进行了拟合。讨论了该模型的含义及其在电机控制的一般背景下的可信度。
A computational model for different aspects of trajectory formation, from point-to-point movements to handwriting is proposed. The proposed model is based on a mechanism of composition of basic curve elements (strokes) which separates the spatial and the temporal aspects of trajectory formation. At the same time, the model suggests a method for storing and describing arm movements, as a list of stroke descriptors. Experimental trajectories were digitized and analyzed with regard to several types of movements: point-to-point trajectories, closed trajectories, trajectories with inflection points, spiral-like trajectories and handwritten trajectories. Velocity and curvature profiles were computed for the trajectories and the model was fitted to the data. The implications of the model and its credibility in the general context of motor control are discussed.