This paper describes the design and proposed implementation of a shared object hierarchy. The object hierarchy is stored in a relational database and objects referenced by an application program are cached in the program’s address space. The paper describes the database representation for the object hierarchy and the use of POSTGRES, a next-generation relational database management system, to i...

In this paper, we describe description schemes (DSs) for image, video, multimedia, home media, and archive content proposed to the MPEG-7 standard. MPEG-7 aims to create a multimedia content description standard in order to facilitate various multimedia searching and "ltering applications. During the design process, special care was taken to provide simple but powerful structures that represent...

Live Surface allows users to segment and render complex surfaces from 3D image volumes at interactive (sub-second) rates using a novel, cascading graph cut (CGC). Live Surface consists of two phases. (1) Preprocessing for generation of a complete 3D hierarchy of tobogganed regions followed by tracking of all region surfaces. (2) User interaction in which, with each mouse movement, the volume is...

reducing the number of colors in an image while preserving its quality, is of importance in many applications such as image analysis and compression. it also decreases memory and transmission bandwidth requirements. moreover, classification of image colors is applicable in image segmentation and object detection and separation, as well as producing pseudo-color images. in this paper, the kohene...

This report explores the design of \appearance-based" object recognition systems and their application to the analysis of aerial imagery. Our system, in contrast with the more prevalent model-based vision systems, in which explicit three dimensional models of objects and physics-based reasoning about the image formation process are combined, models objects in terms of how they appear to a compu...

In this paper, we present a Stochastic Scene Grammar (SSG) for parsing 2D indoor images into 3D scene layouts. Our grammar model integrates object functionality, 3D object geometry, and their 2D image appearance in a Function-Geometry-Appearance (FGA) hierarchy. In contrast to the prevailing approach in the literature which recognizes scenes and detects objects through appearance-based classifi...

Previous algorithms for view-dependent level of detail provide local mesh refinements either at the finest granularity or at a fixed, coarse granularity. The former minimizes the triangles to error ratio, often at the expense of heavy CPU usage and low triangle rendering throughput; the latter improves CPU usage and rendering throughput at the expense of the triangles to error ratio. We present...

In this work we address part-based object detection under variability of part shapes and spatial relations. Our approach bases on the hierarchical finite element modeling concept of Engel and Tönnies [ET09a, ET09b]. They model object parts by elastic materials, which adapt to image structures via image-derived forces. Spatial part relations are realized through additional layers of elastic mate...

After an initial stage of local analysis within the retina and early visual pathways, the human visual system creates a structured representation of the visual scene by co-selecting image elements that are part of behaviorally relevant objects. The mechanisms underlying this perceptual organization process are only partially understood. We here investigate the time-course of perceptual grouping...

Nowadays object oriented image analysis becomes a hot issue in the field of image processing and interpretation because of its more robust noise removing ability, more abundant image features and expertise knowledge involved in analysis. The first and most important step of object oriented image analysis is image segmentation, which segments an image into many visual homogenous parcels. Based o...