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This paper introduces a 3D model-based tree interpreter, a semi-automatic method for tree measurement from high-resolution aerial images. It emphasizes the extraction of the 3D geometric information such as tree location, tree height, crown depth (or crown height), crown radius, and surface curvature. First, trees are modeled as 3 0 hemi-ellipsoids with the(More)
We propose radial harmonic Fourier moments, which are shifting, scaling, rotation, and intensity invariant. Compared with Chebyshev-Fourier moments, the new moments have superior performance near the origin and better ability to describe small images in terms of image-reconstruction errors and noise sensitivity. A multidistortion-invariant(More)
We present a new method to register high and low resolution color images of the retina as well as high resolution angiographies. The registration method is based on global point mapping with blood vessel bifurcations as control points. We also present results of various image fusion algorithms to determine the most appropriate one. Registration and fusion(More)
Cell mechanical activity generated from the interplay between the extracellular matrix (ECM) and the actin cytoskeleton is essential for the regulation of cell adhesion, spreading and migration during normal and cancer development. Keratins are the intermediate filament (IF) proteins of epithelial cells, expressed as pairs in a lineage/differentiation(More)
In this paper, we apply a recently developed type of moments , Orthogonal Fourier-Mellin Moments (OFMMs) [7], to the specijic problem of fully translation-, scale-and in-plane rotation-invariant detection of human faces in two-dimensional static color images, and we compare theirper-formance with that of the generalized Hu's moments or non-orthogonal(More)
The area-based methods, such as that using the Laplacian pyramid and Fourier transform-based phase matching, benefit by highlighting high spatial frequencies to reduce sensitivity to the feature inconsistency problem in the multisensor image registration. The feature extraction and matching methods are more powerful and versatile to process poor quality IR(More)
We explore the feasibility of reconstructing some 3D surface information of the human fundus present in a sequence of fluorescein angiograms. The angiograms are taken during the same examination with an uncalibrated camera. The camera is still and we assume that the natural head/eye micro movement is large enough to create the necessary view change for the(More)