Presentation: U of Maryland: “Computational Photography and Video: Spatio Temporal Analysis for Synthesis”

Computational Photography and Video: Spatio Temporal Analysis for Synthesis of Novel Images and Videos.

ABSTRACT

Digital image capture and processing has recently had a significant impact on the computer graphics quest for rendering novel scenes. In this talk, I will present an overview of series of ongoing efforts in the analysis of images and videos for rendering novel scenes. First I will discuss (in brief) our work on Video Textures, where repeating information is extracted to generate extended sequences of videos. I will then describe some our extensions to this approach that allows for controlled generation of animations of video sprites. We have developed various learning and optimization techniques that allow for video-based animations of photo-realistic characters. Then I will describe additional approaches for image and video synthesis that builds on optimal patch-based copying of samples. I will show how our methods allow for iterative refinement, with a variety of optimization criteria, and all for extension to synthesis of both images and video from very limited samples. Using these sets of approaches as a foundation, then I will show how new images and videos can be generated. I will show examples of Photorealistic and Non-photorealistic Renderings of Scenes (Videos and Images) and how these methods support the media reuse culture, so common these days with user generated content. Time permitting, I will also share some of our efforts on video annotation and how we have taken some of these new concepts of video analysis to undergraduate classrooms.

Tags: | Categories: Computational Photography and Video, Presentations | Date: September 25th, 2007 | By: Irfan Essa |

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