Browsing by Keywords "Digital image storage"
Now showing items 1-13 of 13
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3D model compression using connectivity-guided adaptive lifting transform
(2007)Two compression frameworks that are based on a Set Partitioning In Hierarchical Trees (SPIHT) and JPEG2000 methods are proposed. The 3D mesh is first transformed to 2D images on a regular grid structure. Then, this image-like ... -
Connectivity-guided adaptive lifting transform for image like compression of meshes
(2007)We propose a new connectivity-guided adaptive wavelet transform based mesh compression framework. The 3D mesh is first transformed to 2D images on a regular grid structure by performing orthogonal projections onto the image ... -
Detection of microcalcifications in mammograms using nonlinear subband decomposition and outlier labeling
(1997)Computer-aided diagnosis will be an important feature of the next generation picture archiving and communication systems. In this paper, computer-aided detection of microcalcifications in mammograms using a nonlinear subband ... -
Finding compound structures in images using image segmentation and graph-based knowledge discovery
(2009)We present an unsupervised method for discovering compound image structures that are comprised of simpler primitive objects. An initial segmentation step produces image regions with homogeneous spectral content. Then, the ... -
Image segmentation with unified region and boundary characteristics within recursive shortest spanning tree
(2007)The lack of boundary information in region based image segmentation algorithms resulted in many hybrid methods that integrate the complementary information sources of region and boundary, in order to increase the segmentation ... -
Key frame selection from MPEG video data
(1997)This paper describes a method for selecting key frames by using a number of parameters extracted from the MPEG video stream. The parameters are directly extracted from the compressed video stream without decompression. A ... -
Object-oriented texture analysis for the unsupervised segmentation of biopsy images for cancer detection
(Elsevier BV, 2009-06)Staining methods routinely used in pathology lead to similar color distributions in the biologically different regions of histopathological images. This causes problems in image segmentation for the quantitative analysis ... -
An overview of research in 3DTV
(2007)3DTV is regarded by the experts and the general public as the next major step in video technologies. The ghost-like images of remote persons or objects are already depicted in many futuristic movies; both entertainment ... -
Progressive compression of digital elevation data using meshes
(2009)In this paper a new Digital Elevation Map (DEM) image compression algorithm is proposed. DEM image can be threated as a grayscale image, whose pixel values are the elevation values of the map points. The grayscale DEM image ... -
Rate-distortion based piecewise planar 3D scene geometry representation
(2006)This paper proposes a novel 3D piecewise planar reconstruction algorithm, to build a 3D scene representation that minimizes the intensity error between a particular frame and its prediction. 3D scene geometry is exploited ... -
Relative position-based spatial relationships using mathematical morphology
(2007)Spatial information is a crucial aspect of image understanding for modeling context as well as resolving the uncertainties caused by the ambiguities in low-level features. We describe intuitive, flexible and efficient ... -
Three-dimensional motion and dense-structure estimation using convex projections
(1997)We propose a novel method for estimating the 3D motion and dense structure of an object form its two 2D images. The proposed method is an iterative algorithm based on the theory of projections onto convex sets (POCS) that ... -
Two-dimensional triangular mesh-based mosaicking for object tracking in the presence of occlusion
(1997)In this paper, we describe a method for temporal tracking of video objects in video clips. We employ a 2D triangular mesh to represent each video object, which allows us to describe the motion of the object by the displacements ...
