Region-based bas-relief generation from a single image
Region-based bas-relief generation from a single image
复制标题
从单个图像生成基于区域的浅浮雕
DOI：
10.1016/j.gmod.2013.10.001
复制
发表时间：
2014-01-01
期刊：
影响因子：
1.7
通讯作者：
Tu, Changhe
中科院分区：
文献类型：
--
作者：
Zeng, Qiong;Martin, Ralph R.;Tu, Changhe
一种从单个图像生成浅浮雕的算法，灵感来自艺术家用来创建浮雕的过程。我们的目标不是恢复图像中对象的精确深度值，这是一个棘手的计算机视觉问题，需要很少满足的假设。相反，我们根据图像中对象（及其部分）的相对深度排序来确定图层，并使用此信息来构建3D浮雕模型中的表面。提取特征线并用于构建输入图像的新的基于区域的表示。在表面构造过程中，首先生成一个基础表面：然后使用原始图像的强度和梯度信息对其进行增强。为了防止由于增强而产生的深度误差，使用反馈过程来细化输出。我们的实验结果表明，所生成的浅浮雕具有平滑的边界与适当的高度关系，艺术家创造的浅浮雕的一个关键属性。我们证明了我们的算法适用于一系列输入图像，包括人脸，花卉和动物。(C)2013 Elsevier Inc. All rights reserved.
an algorithm for generating a bas-relief from a single image, inspired by the process that artists use to create reliefs. We do not aim to recover exact depth values for objects in the image, which is a tricky computer vision problem, requiring assumptions that are rarely satisfied. Instead, we determine layers based on relative depth ordering of objects (and their parts) in the image, and use this information to construct surfaces in the 3D relief model. Feature lines are extracted and used to build a new region-based representation of the input image. During surface construction, a base surface is first generated: it is then augmented using both intensity and gradient information from the original image. To prevent depth errors arising due to augmentation, a feedback process is used to refine the output. Our experimental results show the generated bas-reliefs have smooth boundaries with appropriate height relationships, a key property of bas-reliefs created by artists. We demonstrate that our algorithm works well for a range of input images, including human faces, flowers and animals. (C) 2013 Elsevier Inc. All rights reserved.