The goal of the MPEG-7 standard is to allow interoperable searching, indexing, filtering, and access of audio-visual (AV) content by enabling interoperability among devices and applications that deal with AV content description. MPEG-7 specifies the description of features related to the AV content as well as information related to the management of AV content. As illustrated in Figure 1, the s...

Image appearance descriptors are needed for different computer vision applications dealing with, for example, detection, recognition and classification of objects, textures, humans, etc. Typically, such descriptors should be discriminative to allow for making the distinction between different classes, yet still robust to intra-class variations due to imaging conditions, natural changes in appea...

In this work, a simple anti-fingerprint strategy (reduced ≈40–60%) to rearrange fingerprint droplets by patterned micro/nano-pore/spoons texture, air cushion and low surface energy is reported. Superior previous precise complex preparation methods, the micro/nano-texture are fabricated through conventional process of spray dip. The pore spoon can be freely switched changing process. number (N) ...

Retrieving images from large and varied collections using image content as a key is a challenging and important problem. In this paper we present a new image representation which provides a transformation from the raw pixel data to a small set of image regions which are coherent in color and texture space. This so-called “blobworld” representation is based on segmentation using the Expectation-...

Locally orderless images are families of three intertwined scale spaces that describe local histograms. We generalize locally orderless images by considering local histograms of a collection of "ltered versions of the image, and by extending them to joint probability distributions. These constructions can be used to derive texture features and are shown to be a more general description of two e...

Due to the progress in computers and sensors development the number of virtual reality application (VR) grows significantly. Different sensors and techniques such as laser range finders, still and video cameras, mechanical digitizers are used to obtain spatial object coordinates for producing 3D models. The two main requirements to the produced model are the accurate geometry reconstruction and...

Retrieving images from large and varied collections using image content as a key is a challenging and importantproblem. In this paper we present a new image representation which provides a transformation from the raw pixel data to a small set of image regions which are coherent in color and texture space. This so-called “blobworld” representation is based on segmentation using the Expectation-M...

In this paper we present an MPEG-4 compliant system for viewing 360° high-resolution spherical panoramic images and videos. The system allows user navigation within an MPEG-4 3D scene description. Here, two different scene geometries were implemented: One consisting of a spherical geometry around the viewpoint and the other having a cylindrical geometry with associated texture patches each. The...

This paper describes a stress-strain interpolation method to model the macroscopic anisotropic elasto-plastic behavior of polycrystalline materials. Accurate analytical descriptions of yield loci derived from crystallographic texture [Int. J. Plasticity 19 (2003) 647; J. Phys. IV France 105 (2003) 39] are an interesting alternative to finite element models, where the macroscopic stress is provi...