Human Interface to Clarify the Non-Experts Design Requirements

在这项工作中，我们开发了一种新的基于链码的形状模型，该模型以列表的形式表示形状，从而可以方便地对图像数据进行语义解释。通过多次检验，验证了该形状模型的有效性。另一个主要成果是提出了一种生成自由曲线的新方法。到目前为止，用户发现很难在CAD系统上随心所欲地绘制曲线，因为目前的大多数系统需要数学知识来定义控制点来生成自由曲线。此外，如果他们希望修改曾经绘制的曲线，要像他们一样更改它是极其困难的。我们在这里开发的新方法利用移动平均法，计算机提取趋势并生成曲线。这种方法最大的优点是可以随意修改曲线。因此，它将为绘制图像素描提供一个非常有用的工具。

In this work, we developed a new shape model based on chain codes which represents a shape in the form of lists and thus permits easy semantic interpretation of image data. The usefulness of this new shape model was verified through many examinations.Another major outcome is that we developed a new method of generating a free curve. Until now, users find it very difficult to draw a curve on a CAD system as they like because the most of the present system requires mathematical knowledge to define control points to generate a free curve. Furthermore, if they wish to modify the once-drawn curve, it is extremely difficult to change it as they with. The new method we developed here utilizes the method of moving average and the computer extracts the trend and generates the curve. The greatest advantage of this method is we can modify the curve freely as we wish. Thus, it will provide a very useful tool for drawing image sketches.