George Wolberg - Academia.edu (original) (raw)
Papers by George Wolberg
American journal of physiology. Heart and circulatory physiology, Jan 21, 2017
Numerous studies examine aquaporins' role in osmotic water transport in various systems but v... more Numerous studies examine aquaporins' role in osmotic water transport in various systems but virtually none focus on aquaporins' role in hydrostatically-driven water transport involving mammalian cells save for our laboratory's recent study of aortic endothelial cells. Here we inves-tigate aquaporin-1 expression and function in the aortic endothelium in two high-renin rat mod-els of hypertension, the spontaneously hypertensive genetically altered Wystar-Kyoto rat variant and Sprague-Dawley rats made hypertensive by two kidney, one clip Goldblatt surgery. We measured aquaporin-1 expression in aortic endothelial cells from whole rat aortas by quantitative immunohisto¬chemistry, and function by measuring the pressure driven hydraulic conductivities of excised rat aortas with both intact and denuded endothelia on the same vessel. We use them to calculate the effective intimal hydraulic conductivity, which is a combination of endothelial and subendothelial components. We obser...
34th Applied Imagery and Pattern Recognition Workshop (AIPR'05), 2005
This paper presents polymorph, a novel algorithm for morphing among multiple images. Traditional ... more This paper presents polymorph, a novel algorithm for morphing among multiple images. Traditional image morphing generates a sequence of images depicting an evolution from one image into another. We extend this approach to permit morphed images to be derived from more than two images at once. We formulate each input image to be a vertex of a simplex. An inbetween, or morphed, image is considered to be a point in the simplex. It is generated by computing a linear combi nation of the input images, with the weights derived from the barycentric coordinates of the point. To reduce run-time computation and memory overhead, we define a central image and use it asan intermediate node between the input images and the inbetween image. Preprocessing is introduced to resolve conflicting positions of selected features in input images when they are blended t o generate a nonuniform inbetween image. We present warp propagation to efficiently derive warp functions among input images. Blending functions are effectively obtained by constructing surfaces that interpolate user-specified blending rates.
International Journal of Pattern Recognition and Artificial Intelligence, 1987
This paper introduces a syntactic omni-font character recognition system. The "omni-font&quo... more This paper introduces a syntactic omni-font character recognition system. The "omni-font" attribute reflects the wide range of fonts that fall within the class of characters that can be recognized. This includes hand-printed characters as well. A structural pattern-matching approach is employed. Essentially, a set of loosely constrained rules specify pattern components and their interrelationships. The robustness of the system is derived from the orthogonal set of pattern descriptors, location functions, and the manner in which they are combined to exploit the topological structure of characters. By virtue of the new pattern description language, PDL, developed in this paper, the user may easily write rules to define new patterns for the system to recognize. The system also features scale-invariance and user-definable sensitivity to tilt orientation.
2011 International Conference on 3D Imaging, Modeling, Processing, Visualization and Transmission, 2011
Communicating with Virtual Worlds, 1993
New Trends in Computer Graphics, 1988
Third International Symposium on 3D Data Processing, Visualization, and Transmission (3DPVT'06), 2006
Range sensing technology allows the photorealistic mod- eling of large-scale scenes, such as urba... more Range sensing technology allows the photorealistic mod- eling of large-scale scenes, such as urban structures. The generated 3D representations, after automated registration, are useful for urban planning, historical preservation, or vir- tual reality applications. One major issue in 3D modeling of complex large-scale scenes is that the final result is a dense complicated mesh. Significant, in some cases manual, post-
Proceedings 2000 International Conference on Image Processing (Cat. No.00CH37101), 2000
2006 IEEE Computer Society Conference on Computer Vision and Pattern Recognition - Volume 2 (CVPR'06), 2006
Proceedings of the 22nd annual conference on Computer graphics and interactive techniques - SIGGRAPH '95, 1995
Proceedings., International Conference on Image Processing, 1995
American journal of physiology. Heart and circulatory physiology, Jan 21, 2017
Numerous studies examine aquaporins' role in osmotic water transport in various systems but v... more Numerous studies examine aquaporins' role in osmotic water transport in various systems but virtually none focus on aquaporins' role in hydrostatically-driven water transport involving mammalian cells save for our laboratory's recent study of aortic endothelial cells. Here we inves-tigate aquaporin-1 expression and function in the aortic endothelium in two high-renin rat mod-els of hypertension, the spontaneously hypertensive genetically altered Wystar-Kyoto rat variant and Sprague-Dawley rats made hypertensive by two kidney, one clip Goldblatt surgery. We measured aquaporin-1 expression in aortic endothelial cells from whole rat aortas by quantitative immunohisto¬chemistry, and function by measuring the pressure driven hydraulic conductivities of excised rat aortas with both intact and denuded endothelia on the same vessel. We use them to calculate the effective intimal hydraulic conductivity, which is a combination of endothelial and subendothelial components. We obser...
34th Applied Imagery and Pattern Recognition Workshop (AIPR'05), 2005
This paper presents polymorph, a novel algorithm for morphing among multiple images. Traditional ... more This paper presents polymorph, a novel algorithm for morphing among multiple images. Traditional image morphing generates a sequence of images depicting an evolution from one image into another. We extend this approach to permit morphed images to be derived from more than two images at once. We formulate each input image to be a vertex of a simplex. An inbetween, or morphed, image is considered to be a point in the simplex. It is generated by computing a linear combi nation of the input images, with the weights derived from the barycentric coordinates of the point. To reduce run-time computation and memory overhead, we define a central image and use it asan intermediate node between the input images and the inbetween image. Preprocessing is introduced to resolve conflicting positions of selected features in input images when they are blended t o generate a nonuniform inbetween image. We present warp propagation to efficiently derive warp functions among input images. Blending functions are effectively obtained by constructing surfaces that interpolate user-specified blending rates.
International Journal of Pattern Recognition and Artificial Intelligence, 1987
This paper introduces a syntactic omni-font character recognition system. The "omni-font&quo... more This paper introduces a syntactic omni-font character recognition system. The "omni-font" attribute reflects the wide range of fonts that fall within the class of characters that can be recognized. This includes hand-printed characters as well. A structural pattern-matching approach is employed. Essentially, a set of loosely constrained rules specify pattern components and their interrelationships. The robustness of the system is derived from the orthogonal set of pattern descriptors, location functions, and the manner in which they are combined to exploit the topological structure of characters. By virtue of the new pattern description language, PDL, developed in this paper, the user may easily write rules to define new patterns for the system to recognize. The system also features scale-invariance and user-definable sensitivity to tilt orientation.
2011 International Conference on 3D Imaging, Modeling, Processing, Visualization and Transmission, 2011
Communicating with Virtual Worlds, 1993
New Trends in Computer Graphics, 1988
Third International Symposium on 3D Data Processing, Visualization, and Transmission (3DPVT'06), 2006
Range sensing technology allows the photorealistic mod- eling of large-scale scenes, such as urba... more Range sensing technology allows the photorealistic mod- eling of large-scale scenes, such as urban structures. The generated 3D representations, after automated registration, are useful for urban planning, historical preservation, or vir- tual reality applications. One major issue in 3D modeling of complex large-scale scenes is that the final result is a dense complicated mesh. Significant, in some cases manual, post-
Proceedings 2000 International Conference on Image Processing (Cat. No.00CH37101), 2000
2006 IEEE Computer Society Conference on Computer Vision and Pattern Recognition - Volume 2 (CVPR'06), 2006
Proceedings of the 22nd annual conference on Computer graphics and interactive techniques - SIGGRAPH '95, 1995
Proceedings., International Conference on Image Processing, 1995