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We present an optimization framework for exploring gradient-domain solutions for image and video processing. The proposed framework unifies many of the key ideas in the gradient-domain literature under a single optimization formulation. Our hope is that this generalized framework will allow the reader to quickly gain a general understanding of the field and(More)
We present an interactive system for efficiently extracting foreground objects from a video. We extend previous min-cut based image segmentation techniques to the domain of video with four new contributions. We provide a novel painting-based user interface that allows users to easily indicate the foreground object across space and time. We introduce a(More)
We analyze the problem of reconstructing a 2D function that approximates a set of desired gradients and a data term. The combined data and gradient terms enable operations like modifying the gradients of an image while staying close to the original image. Starting with a variational formulation, we arrive at the " screened Poisson equation " known in(More)
(a) Left image (b) Right image (c) Labeled flow field (d) Reconstructed image Figure 1. Dense pixel correspondence between two images of a scene with moving rigid objects. Images (a) and (b) are the input, and (c) is the flow field from (a) to (b) with color labelings. Red indicates occluded areas, and blue and green indicate two motions modeled by(More)
We present a framework for automatically enhancing videos of a static scene using a few photographs of the same scene. For example, our system can transfer photographic qualities such as high resolution, high dynamic range and better lighting from the photographs to the video. Additionally, the user can quickly modify the video by editing only a few still(More)
Patterns on real-world objects are often due to variations in geometry across the surface. Height fields and other common parametric methods cannot synthesize many forms of geometric surface texture such as thorns, scales, and bark. We present an example-based technique for synthesizing a variety of geometric textures on a model's surface. The applied(More)
This talk will concentrate on how some of the recent advances in computer graphics and vision fit into a visual effects pipeline and their application for digitizing props. The production of movies often requires digitizing physical properties of various props. At Weta Digital we model, texture, and shade thousands of props in immense detail. We present a(More)
This sketch shows many of the implementation details that support the Video Cutout system described in the papers session at SIG-GRAPH 2005. Video Cutout is an interactive system for efficiently extracting foreground objects from a video. We extend the min-cut based segmentation approach from image to video. A novel user interface allows the user to(More)
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