https://www.npcglib.orgNon-photorealistic computer graphics resources.en-usCopyright 2011, NPCGLibstathis@npcglib.orgMon, 17 Oct 2011 20:50:02 +0100http://blogs.law.harvard.edu/tech/rss600 https://www.npcglib.org/paper.php?entryid=878 https://www.npcglib.org/paper.php?entryid=878 Stereo imaging is an important area of image and video processing, with exploding progress in the last decades. An open issue in this field is the understanding of the conditions under which the straightforward application of a given image processing operator to both the left and right image of a stereo pair preserves the stereoscopic perception. In this paper, we explore this problem with appl... Giuseppe Papari, Patrizio Campisi, Patrick Le Callet, Nicolai Petkov Mon, 17 Oct 2011 20:37:25 +0100 https://www.npcglib.org/paper.php?entryid=879 https://www.npcglib.org/paper.php?entryid=879 This paper presents a new non-photorealistic/stroke-based rendering (NPR/SBR) framework for the stylization of videos featuring head shots of people, such as home videos, movies, and camera mobile phone clips. Spatiotemporal skin and edge detection are used to locate and emphasize the semantic content in the stylization process. The SBR portion of the algorithm features novel techniques for mot... Deirdre O'Regan, A.C. Kokaram Mon, 17 Oct 2011 20:48:47 +0100 https://www.npcglib.org/paper.php?entryid=876 https://www.npcglib.org/paper.php?entryid=876 In this work, we present a non-photorealistic rendering technique to create stylized abstractions from color images and videos. Our approach is based on adaptive line integral convolution in combination with directional shock filtering. The smoothing process regularizes directional image features while the shock filter provides a sharpening effect. Both operations are guided by a flow field der... Jan Eric Kyprianidis, Henry Kang Mon, 17 Oct 2011 20:09:44 +0100 https://www.npcglib.org/paper.php?entryid=875 https://www.npcglib.org/paper.php?entryid=875 Photomosaic generation is a popular non-photorealistic rendering technique, where a single image is assembled from several smaller ones. Visual responses change depending on the proximity to the photomosaic, leading to many creative prospects for publicity and art. Synthesizing photomosaics typically requires very large image databases in order to produce pleasing results. Moreover, repetitio... Marcos Slomp, Michihiro Mikamo, Bisser Raytchev, Toru Tamaki, Kazufumi Kaneda Sun, 16 Oct 2011 19:25:59 +0100 https://www.npcglib.org/paper.php?entryid=874 https://www.npcglib.org/paper.php?entryid=874 From phantom haptic devices, 3D mouse to multimodal interfaces, while the academics contend about the similarities and differences in theoretical approaches and understanding of the next generation of interfaces in the pursuit of formulating research directions; researchers are actively pursuing the emergence of the next generation of human-computer interaction predictions, discussing em... Lin Hsin Hsin Sun, 16 Oct 2011 19:12:25 +0100 https://www.npcglib.org/paper.php?entryid=873 https://www.npcglib.org/paper.php?entryid=873 Spanish architect Antoni Gaud\'{i} drew on natural precedent to create fantastic organically inspired designs. This paper examines some common motifs in his works, and demonstrates how simple geometric operations can be applied to polyhedral models to achieve similar results. The importance of the partial hyperbolic paraboloid surface (or hypar) is discussed in this context. Cameron Browne Sun, 16 Oct 2011 18:44:58 +0100 https://www.npcglib.org/paper.php?entryid=872 https://www.npcglib.org/paper.php?entryid=872 Purpose The rating of distances and infiltrations to vital structures is important for the planning of tumor surgery or interventional procedures. To support such an assessment, the target structures should be clearly emphasized in a 3D visualization by ensuring their visibility. Methods Smart Visibility techniques such as Ghosting Views and Breakaway Views are employed. Ghosting Views highligh... Christoph Kubisch, Christian Tietjen, Bernhard Preim Sun, 16 Oct 2011 18:35:48 +0100 https://www.npcglib.org/paper.php?entryid=871 https://www.npcglib.org/paper.php?entryid=871 Many ancient East Asian buildings are noted for their immense beauty and intricate design. We introduce a graphics modeling library based on a generalized procedural description we formulated to describe East Asian architecture. By setting the desired parameters, a user can create a building in any of the many different styles, such as Chinese, Japanese or Korean. Different building types, such... Soon Tee Teoh Fri, 14 Oct 2011 23:57:09 +0100 https://www.npcglib.org/paper.php?entryid=870 https://www.npcglib.org/paper.php?entryid=870 We describe 'magnetic curves', a particle-tracing method that creates curves with constantly changing curvature. It is well known that charged particles in a constant magnetic field trace out circular or helical trajectories. Motivated by John Ruskin's advice to use variation in curvature to achieve aesthetic curves, we propose to continuously change the charge on a simulated particle so that i... Ling Xu, David Mould Fri, 14 Oct 2011 23:57:25 +0100 https://www.npcglib.org/paper.php?entryid=869 https://www.npcglib.org/paper.php?entryid=869 This paper presents a technique for mixed media nonphotorealistic painting and portraiture. The goal of this work is to transform digital images into renderings that approximate the appearance of mixed-media artwork, which incorporates two or more traditional visual media. We achieve this by first separating an input image into distinct regions based on the degree of local detail present in the... Stephen Brooks Fri, 14 Oct 2011 21:07:40 +0100