https://www.npcglib.orgNon-photorealistic computer graphics resources.en-usCopyright 2008, NPCGLibstathis@npcglib.orgMon, 24 Mar 2008 11:12:38 +0100http://blogs.law.harvard.edu/tech/rss600 https://www.npcglib.org/paper.php?entryid=793 https://www.npcglib.org/paper.php?entryid=793 This investigation project presents an approach to the task of implementing a system for the real-time automatic painterly rendering of video using existing algorithms. The strengths and weaknesses of these algorithms are evaluated on numerous source videos and modifications made to improve the algorithms with further recommendations for their improvement suggested. An investigation is carried ... Mark Collier Sun, 23 Mar 2008 18:53:13 +0100 https://www.npcglib.org/paper.php?entryid=792 https://www.npcglib.org/paper.php?entryid=792 In recent years, there has been a trend on simulating impressionism with computers. Among the various styles of impressionism, we are particularly interested in simulating the style of pointillism, especially the style presented by Georges-Pierre Seurat, as he was deemed the founder of pointillism. The reason that his style attracts us is twofold. First, the painting process of pointillism is e... Hui-Lin Yang, Chuan-Kai Yang Tue, 18 Mar 2008 20:38:56 +0100 https://www.npcglib.org/paper.php?entryid=790 https://www.npcglib.org/paper.php?entryid=790 We present an approach for generating paintings on photographic images with the style encoded by the example paintings and adopt representative brushes extracted from the example paintings as the painting primitives. Our system first divides the given photographic image into several regions on which we synthesize a grounding layer with texture patches extracted from the example paintings. Then,... Yan-wen Guo, Jin-hui Yu, Xiao-dong Xu, Jin Wang, Qun-sheng Peng Tue, 18 Mar 2008 14:30:07 +0100 https://www.npcglib.org/paper.php?entryid=789 https://www.npcglib.org/paper.php?entryid=789 At a high level, computer graphics deals with conveying information to an observer by visual means. Generating realistic images for this task requires considerable time and computing resources. Human vision faces the opposite challenge: to distill knowledge of the world from a massive influx of visual information. It is reaso... Holger Winnemöller Mon, 17 Mar 2008 14:42:32 +0100 https://www.npcglib.org/paper.php?entryid=788 https://www.npcglib.org/paper.php?entryid=788 This paper presents a novel interactive system for guiding artists to paint using traditional media and tools. The enabling technology is a multi-projector display capable of controlling the appearance of an artist’s canvas. This display-oncanvas guides the artist to construct the painting as a series of layers. Our process model for painting is based on classical techniques and was designed ... Matthew Flagg, James M. Rehg Mon, 17 Mar 2008 14:42:58 +0100 https://www.npcglib.org/paper.php?entryid=785 https://www.npcglib.org/paper.php?entryid=785 This paper presents an approach for determining stroke thickness in computer-generated illustrations of smooth surfaces. We assume that dark strokes are drawn to approximate the dark regions of the shaded surface. This assumption leads to a simple formula for thickness of contours and suggestive contours; this formula depends on depth, radial curvature, and light direction in a manner that repr... Todd Goodwin, Ian Vollick, Aaron Hertzmann Sat, 08 Mar 2008 22:43:05 +0100 https://www.npcglib.org/paper.php?entryid=710 https://www.npcglib.org/paper.php?entryid=710 This paper introduces segmentation-based 3D non-photorealistic rendering, in which 3D scenes are rendered as a collection of 2D image segments. Segments abstract out unnecessary detail and provide a basis for defining new rendering styles. These segments are computed by a spectral clustering algorithm that can incorporate 3D information, including depth, user-defined importance, and object grou... Alexander Kolliopoulos, Jack M. Wang, Aaron Hertzmann Tue, 04 Mar 2008 23:45:32 +0100 https://www.npcglib.org/paper.php?entryid=784 https://www.npcglib.org/paper.php?entryid=784 This thesis presents a new computer interface metaphor for the real-time and simultaneous performance of dynamic imagery and sound. This metaphor is based on the idea of an inexhaustible, infinitely variable, time-based, audiovisual "substance" which can be gesturally created, deposited, manipulated and deleted in a free-form, non-diagrammatic image space. The interface metaphor is exemplified ... Golan Levin Tue, 04 Mar 2008 11:55:37 +0100 https://www.npcglib.org/paper.php?entryid=779 https://www.npcglib.org/paper.php?entryid=779 The digital camera has brought a revolutionary shift in the nature of photography, sweeping aside more than 150 years of technology based on the weird and wonderful photochemistry of silver halide crystals. Curiously, though, the camera itself has come through this transformation with remarkably little change. A digital camera has a silicon sensor where the film used to go, and there's a new di... Brian Hayes Mon, 03 Mar 2008 03:32:14 +0100 https://www.npcglib.org/paper.php?entryid=783 https://www.npcglib.org/paper.php?entryid=783 Illustrative rendering is a widely used visualization technique to display conceptual information, describe problems, and give insight to solve them efficiently in science, engineering, and the arts. Providing users with automated tools to generate illustrations at will is a challenging problem. Adapting illustrative rendering techniques from desktop platforms to mobile devices creates many har... Jingshu Huang, Brian Bue, Avin Pattath, David Ebert, Krystal M. Thomas Mon, 03 Mar 2008 03:30:26 +0100