In this paper, a color image retrieval method based on the primitives of color moments will be proposed. First, an image is divided into several blocks. Then, the color moments of all blocks are extracted and clustered into several classes. The mean moments of each class are considered as a primitive of the image. All primitives are used as features. Since two different images may have differen...

In TREC 2003 Video Track, the Digital Television Center of La Salle School of Engineering, Ramon Llull University, participated in the shot boundary detection task. In this paper we present a method for video shot boundary detection based on color histogram differences. The technique is able to differentiate abrupt shot boundaries by the analysis of color histogram differences and smooth shot b...

Detecting human skin in color images is an interesting problem due to the potential number of target applications ranging from face detection to the detection of pornographic images. Many approaches have been proposed in literature including color tresholding, statistical skin color modeling and segmentation-based techniques. However, the performances often decrease in the presence of illuminat...

This paper concerns multicomponent texture classification. The aim is to provide a flexible model when wavelet subband coefficients of components do not have the same distributions. Example of such case is when color textures are represented in a perceptual color space. In this kind of representation, the separability between luminance and chrominance components have to be considered in the mod...

This study discusses unsupervised similar image retrieval, where two kinds of shape-based features, SIFT and HOG, and two kinds of color-based features, global and local color histograms(GCH, LCH), are investigated. We compare the retrieval performances of shapeand color-based features and combine them to improve the performance. In addition, term frequency-inverse document frequency (TF-IDF) m...

We propose a novel class-driven color transformation aimed at semantic labeling. In contrast with other approaches elsewhere in the literature, our approach is a supervised one employing class information to learn a color transformation. Our method maps image color to a target space with maximum pairwise distances between classes and minimum scattering within each of them. To compute the color ...

Electrochromic effect has been discovered in many materials with a wide range of applications from visible to infrared, such as smart windows, electronic displays, infrared camouflage, and color-changeable tactile sensor. However, conventional electrochromic cannot meet the growing demand for performance terms optical contrast, response time, durability, color diversity, flexibility, which slow...

ine"> Chabazite zeolite membranes were synthesized for their potential application in dehydration of natural gas. The membranes were prepared using secondary growth method on porous <span styl...

This paper presents a multi-modal database intended for person authentication from multiple cues. It currently contains three sessions of the same 120 individuals, providing profile and frontal color images, 3-D facial representations and many french and some english speech utterances. People were selected for their availability so that new sessions will be easily acquired. Individual recogniti...