Paper Info
Title
Mosaic Animations from Video Inputs
Abstract
Mosaic is a Non-Photorealistic Rendering (NPR) style for simulating the appearance of decorative tile mosaics. To simulate realistic mosaics, a method must emphasize edges in the input image, while placing the tiles in an arrangement to minimize the visible grout (the substrate used to glue the tiles that appears between them). This paper proposes a method for generating mosaic animations from input videos (extending previous works on still image mosaics) that uses a combination of a segmentation algorithm and an optical flow method to enforce temporal coherence in the mosaic videos, thus avoiding that the tiles move back and forth the canvas, a problem known as swimming. The result of the segmentation algorithm is used to constrain the result of the optical flow, restricting its computation to the areas detected as being part of a single object. This intra-object coherence scheme is applied to two methods of mosaic rendering, and a technique for adding and removing tiles for one of the mosaic rendering methods is also proposed. Some examples of the renderings produced are shown to illustrate our techniques.
Year
DOI
Venue
2007
10.1007/978-3-540-77129-6_12
Pacific-Rim Symposium on Image and Video Technology
Keywords
Field
DocType
realistic mosaic,mosaic rendering,mosaic animation,mosaic video,segmentation algorithm,input image,optical flow method,image mosaic,video input,mosaic rendering method,decorative tile mosaic,optical flow,non photorealistic rendering
Computer vision,Computer graphics (images),Segmentation,Computer science,Coherence (physics),Artificial intelligence,Voronoi diagram,Rendering (computer graphics),Optical flow,Tile,Mosaic,Computation
Conference
Volume
ISSN
ISBN
4872
0302-9743
3-540-77128-X
Citations 
PageRank 
References 
1
0.35
17
Authors
3
Name
Order
Citations
PageRank
Rafael Beserra Gomes1314.14
Tiago S. Souza250.77
Bruno M. Carvalho318219.31