Results 211 to 220 of about 1,954,579 (262)
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2008 IEEE Ultrasonics Symposium, 2008
This paper describes a clinical study conducted on a porcine animal model to assess the 3-D imaging capability of a laparoscopic imaging probe. A commercially available 128 element 7 MHz laparoscopic imaging probe was modified by the addition of a motor for rotation and a position sensor to locate each image plane in the 3-D volume.
M. Zipparo +9 more
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This paper describes a clinical study conducted on a porcine animal model to assess the 3-D imaging capability of a laparoscopic imaging probe. A commercially available 128 element 7 MHz laparoscopic imaging probe was modified by the addition of a motor for rotation and a position sensor to locate each image plane in the 3-D volume.
M. Zipparo +9 more
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3-D imaging in gastrointestinal laparoscopy
Surgical Endoscopy, 1993This section is designed to bring forward some of the latest innovative technology with explanations in terms that will clarify their importance to the discipline of surgery. Through the efforts of the Innovative Technology Committee of the Society of American Gastrointestinal Endoscopic Surgeons (SAGES), leading experts in various areas will be ...
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2010 9th Euro-American Workshop on Information Optics, 2010
Among various parameters related with the quality of 3-D images, the perceived image depth and depth resolution are the most important parameters in 3-D images because they characterize the image. These parameter values are mostly determined by the stereo camera characteristics.
null Jung-Young Son, null Min-Chul Park
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Among various parameters related with the quality of 3-D images, the perceived image depth and depth resolution are the most important parameters in 3-D images because they characterize the image. These parameter values are mostly determined by the stereo camera characteristics.
null Jung-Young Son, null Min-Chul Park
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2002
In this chapter we discuss various imaging techniques that can retrieve the depth coordinate which is lost by the projection of the object onto an image plane. These techniques fall into two categories. They can either retrieve only the depth of a surface in 3-D space or allow for a full reconstruction of volumetric objects.
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In this chapter we discuss various imaging techniques that can retrieve the depth coordinate which is lost by the projection of the object onto an image plane. These techniques fall into two categories. They can either retrieve only the depth of a surface in 3-D space or allow for a full reconstruction of volumetric objects.
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3-D medical image compression using 3-D wavelet coders
Digital Signal Processing, 2011This paper presents compression of 3-D medical images using 3-D wavelet encoders. Four wavelet transforms, namely, Daubechies 4, Daubechies 6, Cohen-Daubechies-Feauveau 9/7 and Cohen-Daubechies-Feauveau 5/3 are used in the first stage with encoders such as 3-D SPIHT, 3-D SPECK and 3-D BISK used in the second stage for the compression and the optimal ...
Natarajan Sriraam, R. Shyamsunder
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Chemical & Engineering News Archive, 2001
Z-CONTRAST TOMOGRAPHY, A M novel analytical technique mmm developed at the University of Cambridge, generates three-dimensional images of catalyst nanoparticles inside the pores of a silica support. The researchers used the technique, which employs a scanning transmission electron microscope (STEM) and a new form of a process known as electron ...
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Z-CONTRAST TOMOGRAPHY, A M novel analytical technique mmm developed at the University of Cambridge, generates three-dimensional images of catalyst nanoparticles inside the pores of a silica support. The researchers used the technique, which employs a scanning transmission electron microscope (STEM) and a new form of a process known as electron ...
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Registration of 3-D images by genetic optimization
Pattern Recognition Letters, 1995We present a framework for solving the 3-D registration problem in medical imaging based on a canonical genetic algorithm (cGA). The issue of 3-D registration is stated as an optimization problem in both application cases presented, i.e., volume-to-volume and surface-to-volume registration.
Jean-José Jacq, Christian Roux
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3-D histogram modification of color images
Proceedings of 3rd IEEE International Conference on Image Processing, 2002While histogram modification has traditionally been used for the enhancement of color images, it has usually been restricted to processing the luminance component and, in some cases, the saturation. Reducing the problem's dimensionality in this manner generally sacrifices the ability to make full use of the color space gamut.
Phillip A. Mlsna +2 more
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Nature, 1977
Three Dimensional Imaging Techniques. By T. Okoshi. Pp. 403. (Academic: New York and London, 1976.) $15.00; £10.65.
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Three Dimensional Imaging Techniques. By T. Okoshi. Pp. 403. (Academic: New York and London, 1976.) $15.00; £10.65.
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Confocal imaging for 3-D digital microscopy
Applied Optics, 1987Optical serial sectioning based on the depth-discriminating ability of confocal laser scanning can be combined with digital image processing to realize fast and easy-to-use 3-D microscopy. A great advantage as compared with traditional methods, e.g., using a microtome, is that the specimen is left undamaged.
K, Carlsson, N, Aslund
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