We propose an interactive 3D character modeling approach from orthographic drawings (e.g., front and side views) based on 2D-space annotations. First, the system builds partial correspondences between the input drawings and generates a base mesh with sweeping splines according to edge information in 2D images. Next, users annotates the desired parts on the input drawings (e.g., the eyes and mouth) by using two type of strokes, called addition and erosion, and the system re-optimizes the shape of the base mesh. By repeating the 2D-space operations (i.e., revising and modifying the annotations), users can design a desired character model. To validate the efficiency and quality of our system, we verified the generated results with state-of-the-art methods.

翻译：我们建议基于 2D 空间说明的拼写图纸( 如前侧视图和侧面视图) 采用互动的 3D 字符建模方法。 首先, 系统在输入图纸之间建立部分对应关系, 根据 2D 图像的边缘信息生成一个带有扫描样条的基网格。 其次, 用户通过使用两种类型的划线( 称为增减和侵蚀) 来说明输入图纸( 如眼睛和嘴) 的预期部分, 系统重新优化基网格的形状 。 通过重复 2D 空间操作( 修改和修改说明), 用户可以设计一个理想的字符模型。 为了验证系统的效率和质量, 我们用最先进的方法验证了生成的结果 。