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首页> 外文会议>Conference on Computer Image Analysis in the Study of Art; 20080128-29; San Jose,CA(US) >Estimating the original drawing trace of painted strokes
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Estimating the original drawing trace of painted strokes

机译：估计笔触的原始绘图痕迹

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摘要

Pencil drawings like portraits or landscapes comprise dozens of strokes. The segmentation and identification of individual strokes is an interesting question in analyzing the drawings since it allows art historians to analyze the development of the stroke formations in the picture in more detail. In this study we are going to identify individual strokes in stroke formations and to reconstruct the original drawing trace of the artist. The method is based on a thinning algorithm and a following analysis of the accrued skeleton. In order to detect the original stroke and the natural drawing trace we use the curvilinearity information of the thinned sub-strokes. A sub-stroke runs from either a real end point to a crossing point, or between two crossing points. The selection of corresponding strokes in crossing points is based on the angle at the end points of the sub-strokes. The individual strokes drawn through are represented by a one pixel wide line which approximates the original drawing trace of the artist by a cubic B-spline. The whole process is parameter free: we use the automatic calculated stroke width for the skeleton pruning process, for the calculation of the angles at the sub-stroke endings and as the distance for the spline control points.
机译：铅笔画（如肖像画或风景画）包含许多笔触。在分析图形时，单个笔划的分割和识别是一个有趣的问题，因为它允许艺术史学家更详细地分析图片中笔划形式的发展。在这项研究中，我们将识别笔画形式中的单个笔画，并重建画家的原始绘画轨迹。该方法基于细化算法和对应计骨骼的后续分析。为了检测原始笔划和自然绘制轨迹，我们使用变细的子笔划的曲线信息。子笔划从真实端点到交叉点，或者在两个交叉点之间延伸。交叉点中相应笔画的选择基于子笔画端点处的角度。画出的各个笔画用一条像素宽的线表示，该线通过三次B样条曲线近似艺术家的原始绘画轨迹。整个过程是无参数的：我们将自动计算的笔划宽度用于骨架修剪过程，以计算子笔划末端的角度并作为样条控制点的距离。

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