29 April 2010

Article: Studying Digital Imagery of Ancient Paintings (2004)

Title: Studying Digital Imagery of Ancient Paintings by Mixtures of Stochastic Models
Author
: Jia Li and James Z. Wang

Reference
: IEEE Transactions on Image Processing, vol. 13, no. 3, pp. 340-353, 2004

Link: article (PDF, 1.1 Mb), presentation (pdf, 2 Mb)

Abstract
:
This paper addresses learning based characterization of fine art painting styles. The research has the potential to provide a powerful tool to art historians for studying connections among artists or periods in the history of art. Depending on specific applications, paintings can be categorized in different ways. In this paper, we focus on comparing the painting styles of artists. To profile the style of an artist, a mixture of stochastic models is estimated using training images. The 2-D multiresolution hidden Markov model (MHMM) is used in the experiment. These models form an artist's distinct digital signature. For certain types of paintings, only strokes provide reliable information to distinguish artists. Chinese ink paintings are a prime example of the above phenomenon; they do not have colors or even tones. The 2-D MHMM analyzes relatively large regions in an image, which in turn makes it more likely to capture properties of the painting strokes. The mixtures of 2-D MHMMs established for artists can be further used to classify paintings and compare paintings or artists. We implemented and tested the system using high-resolution digital photographs of some of China's most renowned artists. Experiments have demonstrated good potential of our approach in automatic analysis of paintings. Our work can be applied to other domains.


Article: Cybertools and Archaeology (2006)

Title: Cybertools and Archaeology
Author
: Dean R. Snow, Mark Gahegan, C. Lee. Giles, Kenneth G. Hirth, George R. Milner, Prasenjit Mitra and James Z. Wang

Reference
: Science, vol. 311, issue. 5763, pp. 958-959, February 17, 2006

Link
: http://stanford.edu/... (PDF, 200 Kb)


Description
:
In archaeology and other historical sciences, diverse, widely distributed data include artifacts, notes, field logs, and other records. Future research requires that these archives be electronically accessible and user-friendly.

28 April 2010

Article: Image Processing for Artist Identification (2008)



Title
: Image Processing for Artist Identification - Computerized Analysis of Vincent van Gogh's Painting Brushstrokes

Author
: C. Richard Johnson, Jr., Ella Hendriks, Igor Berezhnoy, Eugene Brevdo, Shannon Hughes, Ingrid Daubechies, Jia Li, Eric Postma and James Z. Wang

Reference
: IEEE Signal Processing Magazine, Special Issue on Visual Cultural Heritage, vol. 25, no. 4, 2008, pp. 37-48

DOI
: 10.1109/MSP.2008.923513

Link: http://stanford.edu/... (pdf, 4.3 mb)


27 April 2010

Article: Fresco restoration: digital image processing approach (2009)

Title: Fresco restoration: digital image processing approach
Authors
: Jan Blazek, Barbara Zitová, Miroslav Beneš, and Janka Hradilová

Reference
: 17th European Signal Processing Conference (EUSIPCO 2009), Glasgow, Scotland, August 24-28, 2009, pp. 1210-1214

Link
: http://utia.cas.cz/... (pdf, 667 Kb)


Abstract
:
In this paper, we present an application of digital image processing algorithms for the process of fresco restoration. Modern methods for image preprocessing and evaluation such as image registration, image fusion, and image segmentation are applied on images of the fresco, obtained in different modalities (visual and ultraviolet spectra) and at different times. Moreover, local chemical analyzes are taken into account during the image analysis. The robustness of proposed algorithms should be high due to the bad state of the fresco. Achieved results can give to art restorers better insight into the evolution of the fresco aging and in this way a proper conservation method can be chosen. Developed methods are illustrated by generated output images.

Article: Modeling of Wood Aging (2008)


Title
: Modeling of Wood Aging Caused by Biological Deterioration

Author
: Xin Yin, Tadahiro Fujimoto, Norishige Chiba, and Hiromi T. Tanaka

Reference
: Journal of Advanced Computational Intelligence and Intelligent Informatics, Vol. 12, No.2, 2008, pp. 125-131

Link
: http://www.fujipress.jp/... (pdf, 830 Kb)


Note: access to the article requires registration (free)


Abstract
We propose visually simulating wood aging by microorganisms using an ant colony optimization algorithm to generate wood aging patterns. Ants deposit pheromone similar to termites and wood deterioration caused by termites is simulated using this algorithm. Patterns generated by this algorithm resemble many pattern in nature, meaning ant paths are representative of worm paths and ant pheromones are representative of microorganism growth. We demonstrate the effectiveness of this technique in experiments.