Results 221 to 230 of about 754,307 (267)
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Digitization of Ultrasonic Images
Radiology, 1970Abstract The authors describe a method for digitizing diagnostic ultrasonic data using a system originally constructed for use with radioisotope scan data. A commercial ultrasonic unit drives the transducer and amplifies the preliminary echo signal. The output signals from the ultrasonic unit are fed to a programmable digital logic interface coupled to
J J, Erickson, A B, Brill
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IEEE Signal Processing Magazine, 2009
The article explains how photo-response nonuniformity (PRNU) of imaging sensors can be used for a variety of important digital forensic tasks, such as device identification, device linking, recovery of processing history, and detection of digital forgeries.
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The article explains how photo-response nonuniformity (PRNU) of imaging sensors can be used for a variety of important digital forensic tasks, such as device identification, device linking, recovery of processing history, and detection of digital forgeries.
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IEEE Transactions on Acoustics, Speech, and Signal Processing, 1987
Nielsen et al. recently addressed the problem of determining the optimal discretization grid and quantization depth when a given bivariate function f(x, y) has to be described with a predetermined number of bits. This was done under the assumption that the function value range and mean "fluctuation rates" in the x and y direction are given, and that ...
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Nielsen et al. recently addressed the problem of determining the optimal discretization grid and quantization depth when a given bivariate function f(x, y) has to be described with a predetermined number of bits. This was done under the assumption that the function value range and mean "fluctuation rates" in the x and y direction are given, and that ...
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Journal of Thoracic Imaging, 1985
The development of effective methods for producing digital chest radiographs is essential if the totally digital radiology department of the future is to evolve. Digital radiography of the chest is now possible with a variety of techniques. The most promising approach currently in clinical use involves the use of large-area detectors composed of ...
C R, Merritt +3 more
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The development of effective methods for producing digital chest radiographs is essential if the totally digital radiology department of the future is to evolve. Digital radiography of the chest is now possible with a variety of techniques. The most promising approach currently in clinical use involves the use of large-area detectors composed of ...
C R, Merritt +3 more
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Journal of the American Podiatric Medical Association, 1997
In this case presentation, an incision was made on the nonweightbearing surface of the hallux directly over the mass in question, just long enough to allow for the isolation of the entire mass. This permitted easier identification of the mass and enabled dissection of the abnormal tissue and excision of only the tumor with a minimum of tissue trauma ...
R L, Baron, A W, Galinski, M, Vlahos
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In this case presentation, an incision was made on the nonweightbearing surface of the hallux directly over the mass in question, just long enough to allow for the isolation of the entire mass. This permitted easier identification of the mass and enabled dissection of the abnormal tissue and excision of only the tumor with a minimum of tissue trauma ...
R L, Baron, A W, Galinski, M, Vlahos
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Seminars in Roentgenology, 2003
Digital imaging consists of digital acquisition modalities, image, and information management systems. All modalities are available to be purchased as digital acquisition devices. Image management has been the domain for PACSs. PACSs are complex systems designed to transmit, store, and display medical images.
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Digital imaging consists of digital acquisition modalities, image, and information management systems. All modalities are available to be purchased as digital acquisition devices. Image management has been the domain for PACSs. PACSs are complex systems designed to transmit, store, and display medical images.
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American Journal of Orthodontics and Dentofacial Orthopedics, 2000
Although most orthodontists can rely on their orthodontic image software, those who have the need to go beyond just the monitor display of the images will need to get behind the scenes. Understanding a little of what makes up digital images and how to manipulate the variables will enable them to get optimum image quality as well as conserve on time ...
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Although most orthodontists can rely on their orthodontic image software, those who have the need to go beyond just the monitor display of the images will need to get behind the scenes. Understanding a little of what makes up digital images and how to manipulate the variables will enable them to get optimum image quality as well as conserve on time ...
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Digital image colorimetry on smartphone for chemical analysis: A review
Measurement: Journal of the International Measurement Confederation, 2021Gui Zhang, Lianwu Xie, Yaping Guo
exaly