Interactive digital photomontage
Interactive digital photomontage
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DOI：
10.1145/1015706.1015718
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发表时间：
2004-08-01
影响因子：
6.2
通讯作者：
Cohen, M
中科院分区：
文献类型：
--
作者：
Agarwala, A;Dontcheva, M;Cohen, M
我们描述了一个交互式的，计算机辅助的框架，用于将一组照片的部分组合成一张合成图片，我们称之为“数字照片蒙太奇”的过程。“我们的框架主要使用两种技术：图形切割优化，在组成图像中选择良好的接缝，以便它们可以尽可能无缝地组合;梯度域融合，一个基于泊松方程的过程，以进一步减少合成中任何剩余的可见伪影。该框架的核心是一套交互式工具，允许用户指定各种高级别的图像目标，无论是全局的图像，或本地通过绘画风格的界面。图像物镜独立地应用于每个像素位置，并且通常涉及从源图像集中的相同位置绘制的像素值（诸如“最大对比度”）的函数。通常，用户迭代地应用一系列图像物镜以便创建完成的合成。这个框架的力量在于它的通用性，我们展示了它如何可以用于各种各样的应用程序，包括“选择性复合材料”（例如，集体照片中，每个人都看起来最好的），重新照明，扩展景深，全景拼接，干净的板生产，运动的频闪可视化，和延时马赛克。
We describe an interactive, computer-assisted framework for combining parts of a set of photographs into a single composite picture, a process we call "digital photomontage." Our framework makes use of two techniques primarily: graph-cut optimization, to choose good seams within the constituent images so that they can be combined as seamlessly as possible; and gradient-domain fusion, a process based on Poisson equations, to further reduce any remaining visible artifacts in the composite. Also central to the framework is a suite of interactive tools that allow the user to specify a variety of high-level image objectives, either globally across the image, or locally through a painting-style interface. Image objectives are applied independently at each pixel location and generally involve a function of the pixel values (such as "maximum contrast") drawn from that same location in the set of source images. Typically, a user applies a series of image objectives iteratively in order to create a finished composite. The power of this framework lies in its generality; we show how it can be used for a wide variety of applications, including "selective composites" (for instance, group photos in which everyone looks their best), relighting, extended depth of field, panoramic stitching, clean-plate production, stroboscopic visualization of movement, and time-lapse mosaics.