WICED 2015

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https://diglib.eg.org/handle/10.2312/12283

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Browsing WICED 2015 by Subject "I.3.6 [Computer Graphics]"

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    Implementing Game Cinematography: Technical Challenges and Solutions for Automatic Camera Control in Games
    (The Eurographics Association, 2015) Burelli, Paolo; W. Bares and M. Christie and R. Ronfard
    Cinematographic games are a rising genre in the computer games industry and an increasing number of titles published include some aspects of cinematography in the gameplay or the storytelling. At present state, camera handling in computer games is managed primarily through custom scripts and animations and there is an inverse relationship between player freedom and cinematographic quality. In this paper, we present a description of a series of technical challenges connected with the development of an automatic camera control library for computer games and we showcase a set of algorithmic and engineering solutions.
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    Key-frame Based Spatiotemporal Scribble Propagation
    (The Eurographics Association, 2015) Dogan, Pelin; Aydın, Tunç Ozan; Stefanoski, Nikolce; Smolic, Aljoscha; W. Bares and M. Christie and R. Ronfard
    We present a practical, key-frame based scribble propagation framework. Our method builds upon recent advances in spatiotemporal filtering by adding key-components required for achieving seamless temporal propagation. To that end, we propose a temporal propagation scheme for eliminating holes in regions where no motion path reaches reliably. Additionally, to facilitate the practical use of our technique we formulate a pair of image edge metrics influenced from the body of work on edge-aware filtering, and introduce the ""hybrid scribble propagation"" concept where each scribble's propagation can be controlled by user defined edge stopping criteria. Our method improves the current state-of-the-art in the quality of propagation results and in terms of memory complexity. Importantly, our method operates on a limited, user defined temporal window and therefore has a constant memory complexity (instead of linear) and thus scales to arbitrary length videos. The quality of our propagation results is demonstrated for various video processing applications such as mixed HDR video tone mapping, artificial depth of field for video and local video recoloring.