| 一种基于图像相位变化的动画算法 |
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| 引用本文： | 吴学龙,张明敏,潘志庚. 一种基于图像相位变化的动画算法[J]. 计算机工程与应用, 2003, 39(23): 68-70,179 |
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| 作者姓名： | 吴学龙 张明敏 潘志庚 |
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| 作者单位： | 浙江大学CAD&CG国家重点实验室,杭州,310027 |
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| 基金项目： | 教育部优秀青年教师教学科研资助计划，浙江省优秀青年人才培养基金项目(编号:RC40008) |
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| 摘 要： | W.T.Freeman等人提出了基于图像相位变化的动画算法。该文利用这种动画算法,结合光流场,在一个动画或视频的连续两帧图像之间实现了永不停止的动画。在灰度图像上实现这种动画的基础上,针对这种无移动动画对图像质量的损害,进行了灰度拉伸等后期处理,提高了动画的图像质量。另外,把这种算法扩展到彩色图像,并采用lαβ颜色空间,得到了更好的效果。最后,把这种动画通过纹理映射,应用到三维场景中。
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| 关 键 词： | 基于图像相位变化的动画 光流场 灰度拉伸 纹理映射 |
| 文章编号： | 1002-8331-(2003)23-0068-03 |
Motion Arithmetic Based on the Change of Image''s Phase |
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| Wu Xuelong Zhang Mingmin Pan Zhi geng. Motion Arithmetic Based on the Change of Image''s Phase[J]. Computer Engineering and Applications, 2003, 39(23): 68-70,179 |
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| Authors: | Wu Xuelong Zhang Mingmin Pan Zhi geng |
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| Abstract: | W.T.Freeman brings forward a kind of motion arithmetic based on the change of image's phase.This paper gives a motion between two consecutive frames of a vedio sequence with this method combining with optical flow field.After implementing the motion in gray images,authors try to improve image quality of the motion aiming by stretch ing the gray area at the damage to the image quality in this motion arithmetic.In addition,authors extend the arithmetic to color image,and get better effect by making use of lαβcolor space.At last,authors apply the motion to3D scene by texture mapping. |
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| Keywords: | Motion based on the change of image's phase Optical flow field Gray stretch Texture mapping |
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