This paper proposed to use double polarization synthetic aperture radar (SAR) image to classify surface feature, based on DEM. It takes fully use of the polarization information and external information. This paper utilizes ENVISAT ASAR APP double-polarization data of Poyang lake area in Jiangxi Province. Compared with traditional pixel-based classification, this paper fully uses object feature...

An important feature to be considered in the design of a Multimedia Database Systems (MMDBS) is content-based retrieval of images. Spatial features represent the spatial relationships among objects in an image. The salient objects (interesting objects) can be organized in an object hierarchy, based on object-oriented concepts. This paper proposes a new indexing scheme, called 2d-h trees, for co...

This paper describes a new technique for statistical 3{D object localization. Local feature vectors are extracted for all image positions, in contrast to seg-mentation in classical schemes. We deene a density function for those features and describe a hierarchical pose estimation scheme for the localization of a single object in a scene with arbitrary background. We show how the global pose sea...

An important feature to be considered in the design of a Multimedia Database Systems (MMDBS) is content-based retrieval of images. Spatial features represent the spatial relationships among objects in an image. The salient objects (interesting objects) can be organized in an object hierarchy, based on object-oriented concepts. This paper proposes a new indexing scheme, called 2d-h trees, for co...

BACKGROUND Object detection in 3-D medical images is often necessary for constraining a segmentation or registration task. It may be a task in its own right as well, when instances of a structure, e.g. the lymph nodes, are searched. Problems from occlusion, illumination and projection do not arise, making the problem simpler than object detection in photographies. However, objects of interest a...

We present a method for hierarchical image segmentation and feature extraction. This method builds upon the combination of the detection of image spectral discontinuities using Canny edge detection and the image Laplacian, followed by the construction of a hierarchy of segmented images of successively reduced levels of details. These images are represented as sets of polygonized pixel patches (...

sensor parameters to more effectively solve a particular We present an active object recognition strategy which comvision task. One aspect of active vision is the use of an bines the use of an attention mechanism for focusing the search attention mechanism to decide where in the image to for a 3D object in a 2D image, with a viewpoint control strategy search for a particular object. Template ma...