The ImageCLEF 2008 medical image annotation task is designed to assess the quality of content-based image retrieval and image classification by means of global signatures. In contrast to the previous years, the 2008 task was designed such that the hierarchy of reference IRMA code classifications is essential for good performance. In total, 12,076 images were used, and 24 runs of 6 groups were s...

Please cite this article in press as: Lézoray, Recognition Lett. (2008), doi:10.1016/j.pat In this paper, a color image segmentation method considering pairwise color projections is proposed. Each pairwise projection is analyzed according to an unsupervised morphological clustering which looks for the dominant colors of a 2D histogram. This leads to obtaining three segmentation maps combined by...

Various transforms like DCT, DFT used to achieve image transformation have been described by Ramesh Babu Durai et al (2012). Contourlet based ROI method with wavelet transform is a better method of digital signals and images. By means of expensive calculation, processing of data compression has eased the burden of image transmission and storage as discussed by Tamilarasi & Palanisamy (2009). Da...

Edge is an important feature of an image and is required for image understanding. It provides important image information that can be used for image interpretation. Many techniques of edge detection have been developed. This paper proposes a new technique of edge detection that requires much lesser computation than Sobel’s method and performs better than Sobel’s method. The technique is based o...

Radial distortion in an image is a geometric distortion that causes a non-linear variation in resolution across the image, with a higher spatial resolution in the central areas of the image, and lower resolution in the peripheral areas of the image. This is particularly evident in fish-eye cameras, with very wide fields-of-view. Equidistant fish-eye cameras are designed such that the distance b...

Jenkins and Burton (Brevia, 25 January 2008, p. 435) reported that image averaging increased the accuracy of the automatic face recognition to 100% and thus could be applied to photo-identification documents. We argue that the feasibility of image averaging on identification documents is not fully supported by the presented evidence.

Worldwide, breast cancer is the predominant form of malignancy in women (Hortobagyi et al., 2005). However, when diagnosed in an early stage, women have a good chance to survive for a longer period of time. Therefore, it is important to focus on the impact of breast cancer and its treatment on long-term psychosocial outcomes. In recent years, quality of life (QOL) has become a primary endpoint ...

We address the problem of an efficient image-space reconstruction of adaptively sampled scenes in the context of point-based and linebased graphics. The image-space reconstruction offers an advantageous time complexity compared to surface splatting techniques and, in fact, our improved GPU implementation performs significantly better than splatting implementations for large point-based models. ...

A multilateral approach that includes both biotic and climatic data was developed to detect the main variables that affect the ecology and population dynamics of woolly apple aphid Eriosoma lanigerum (Hausmann). Crawlers migrated up and down the trunk mainly from spring to autumn and horizontal migration through the canopy was observed from May to August. Winter temperatures did not kill the ca...