基于样本学习的人像线条画生成系统

陈洪; 郑南宁; 徐迎庆; 沈向洋

引用本文:	陈洪,郑南宁,徐迎庆,沈向洋.基于样本学习的人像线条画生成系统.软件学报,2003,14(2):202-208

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基于样本学习的人像线条画生成系统
陈洪¹, 郑南宁¹, 徐迎庆², 沈向洋²
1.西安交通大学,人工智能与机器人研究所,陕西,西安,710049;2.微软亚洲研究院,北京,100080

摘要:

介绍了一个基于样本学习的人脸线条画生成系统.该系统可以根据用户给定的正面人脸照片自动生成相应的人脸线条画.在系统中有两个关键技术,即非参数化采样方法和灵活的线条画模板.对于给定图像上的任意像素点及其邻域,通过在样本空间搜索并匹配所有的相似邻域,计算该像素点在相应的线条画上出现的条件概率;然后根据艺术家的风格和得到的条件概率绘制"期望的线条画";最后使用模板匹配得到最后的线条画.此方法可以生成高质量的正面人脸线条画.

关键词: 基于样本的学习线条画计算机图形学计算机视觉

DOI：

分类号:

基金项目:Supported by the National Natural Science Foundation of China under Grant No.60024301 (国家自然科学基金)

An Example-Based Facial Sketch Generation System

CHEN Hong,ZHENG Nan-Ning,XU Ying-Qing,Shen xiang-yang

Abstract:

In this paper, an example-based facial sketch system is presented, which automatically generates a sketch from an input image. All the example sketches are drawn with a particular style. There are two key elements in this system, a non-parametric sampling method and a flexible sketch model. Given an input image pixel and its neighborhood, the conditional distribution of a sketch point is computed by querying the examples and finding all similar neighborhoods. An expected sketch image is then drawn from the distribution to reflect the drawing style. Finally, good quality facial sketches are obtained.

Key words: example-based learning sketch computer graphics computer vision