Fast multiresolution image querying
SIGGRAPH '95 Proceedings of the 22nd annual conference on Computer graphics and interactive techniques
Matrix computations (3rd ed.)
Generating photomosaics: an empirical study
Proceedings of the 1999 ACM symposium on Applied computing
EP '98/RIDT '98 Proceedings of the 7th International Conference on Electronic Publishing, Held Jointly with the 4th International Conference on Raster Imaging and Digital Typography: Electronic Publishing, Artistic Imaging, and Digital Typography
A spectral approach to NPR packing
Proceedings of the 4th international symposium on Non-photorealistic animation and rendering
Proceedings of the 5th international symposium on Non-photorealistic animation and rendering
Efficient global weighted least-squares translation registration in the frequency domain
ICIAR'05 Proceedings of the Second international conference on Image Analysis and Recognition
IEEE Transactions on Image Processing
Efficient Least Squares Multimodal Registration With a Globally Exhaustive Alignment Search
IEEE Transactions on Image Processing
ACM SIGGRAPH Asia 2009 papers
NPAR '10 Proceedings of the 8th International Symposium on Non-Photorealistic Animation and Rendering
Artistic tessellations by growing curves
Proceedings of the ACM SIGGRAPH/Eurographics Symposium on Non-Photorealistic Animation and Rendering
Refinement techniques for animated evolutionary photomosaics using limited tile collections
EvoCOMNET'10 Proceedings of the 2010 international conference on Applications of Evolutionary Computation - Volume Part II
Accurate and discernible photocollages
CAe '12 Proceedings of the Eighth Annual Symposium on Computational Aesthetics in Graphics, Visualization, and Imaging
Digital Camouflage Images Using Two-scale Decomposition
Computer Graphics Forum
Abstract painting with interactive control of perceptual entropy
ACM Transactions on Applied Perception (TAP)
A study on stackable mosaic generation for mobile devices
Multimedia Tools and Applications
Simple art as abstractions of photographs
Proceedings of the Symposium on Computational Aesthetics
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An image mosaic is a rendering of a large target image by arranging a collection of small source images, often in an array, each chosen specifically to fit a particular block of the target image. Most mosaicking methods are simplistic in the sense that they break the target image into regular tiles (e.g., squares or hexagons) and take extreme shortcuts when evaluating the similarity between target tiles and source images. In this paper, we propose an efficient method to obtain higher quality mosaics that incorporate a number of process improvements. The Fast Fourier Transform (FFT) is used to compute a more fine-grained image similarity metric, allowing for optimal colour correction and arbitrarily shaped target tiles. In addition, the framework can find the optimal sub-image within a source image, further improving the quality of the matching. The similarity scores generated by these high-order cost computations are fed into a matching algorithm to find the globally-optimal assignment of source images to target tiles. Experiments show that each improvement, by itself, yields a more accurate mosaic. Combined, the innovations produce very high quality image mosaics, even with only a few hundred source images.