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Matt Uyttendaele

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Publications by Matt Uyttendaele (bibliography)

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2012
 
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Joshi, Neel, Mehta, Sisil, Drucker, Steven, Stollnitz, Eric, Hoppe, Hugues, Uyttendaele, Matt and Cohen, Michael (2012): Cliplets: juxtaposing still and dynamic imagery. In: Proceedings of the 2012 ACM Symposium on User Interface Software and Technology 2012. pp. 251-260.

We explore creating ""cliplets"", a form of visual media that juxtaposes still image and video segments, both spatially and temporally, to expressively abstract a moment. Much as in ""cinemagraphs"", the tension between static and dynamic elements in a cliplet reinforces both aspects, strongly focusing the viewer's attention. Creating this type of imagery is challenging without professional tools and training. We develop a set of idioms, essentially spatiotemporal mappings, that characterize cliplet elements, and use these idioms in an interactive system to quickly compose a cliplet from ordinary handheld video. One difficulty is to avoid artifacts in the cliplet composition without resorting to extensive manual input. We address this with automatic alignment, looping optimization and feathering, simultaneous matting and compositing, and Laplacian blending. A key user-interface challenge is to provide affordances to define the parameters of the mappings from input time to output time while maintaining a focus on the cliplet being created. We demonstrate the creation of a variety of cliplet types. We also report on informal feedback as well as a more structured survey of users.

© All rights reserved Joshi et al. and/or ACM Press

2005
 
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Baudisch, Patrick, Tan, Desney S., Steedly, Drew, Rudolph, Eric, Uyttendaele, Matt, Pal, Chris and Szeliski, Richard (2005): Panoramic viewfinder: providing a real-time preview to help users avoid flaws in panoramic pictures. In: Proceedings of OZCHI05, the CHISIG Annual Conference on Human-Computer Interaction 2005. pp. 1-10.

Image stitching allows users to combine multiple regular-sized photographs into a single wide-angle picture, often referred to as a panoramic picture. To create such a panoramic picture, users traditionally first take all the photographs, then upload them to a PC and stitch. During stitching, however, users often discover that the produced panorama contains artifacts or is incomplete. Fixing these flaws requires retaking individual images, which is often difficult by this time. In this paper, we present Panoramic Viewfinder, an interactive system for panorama construction that offers a real-time preview of the panorama while shooting. As the user swipes the camera across the scene, each photo is immediately added to the preview. By making ghosting and stitching failures apparent, the system allows users to immediately retake necessary images. The system also provides a preview of the cropped panorama. When this preview includes all desired scene elements, users know that the panorama will be complete. Unlike earlier work in the field of real-time stitching, this paper focuses on the user interface aspects of real-time stitching. We describe our prototype, individual shooting modes, and an implementation overview.

© All rights reserved Baudisch et al. and/or their publisher

 
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