Results 271 to 280 of about 696,698 (308)
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A high speed maximum entropy encoder for images
ICASSP '83. IEEE International Conference on Acoustics, Speech, and Signal Processing, 2005A simple nonlinear memory based coding system is presented which encodes and decodes images rapidly. The nonlinear nature of the coding system allows edges to be represented well. The coding system compares favorably to predictive coders in the one to two bits per pixel range.
Edward Angel, L. Don Daigle
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Drop hammer with high-speed thermal imaging
Review of Scientific Instruments, 2018The drop hammer test is the easiest way to assess the sensitivity of explosive materials, but drop hammer results for low-velocity impacts have not been able to explain how explosives will react to other kinds of initiating stimuli. In order to do that, we have to understand the fundamental mechanisms of drop hammer initiation and how they differ from ...
Zhiwei Men +3 more
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Aerospace Testing International, 2018
High-end testing such as particle tracking or material measurement requires the best high-speed imaging
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High-end testing such as particle tracking or material measurement requires the best high-speed imaging
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High Speed Image Rotation in Embedded Systems
Computer Vision and Image Understanding, 1995Abstract The design of an enhanced SIMD processor, named the SIMDDE, is evaluated. The architecture has circular data paths, as well as row and column paths. The SIMDDE architecture is intended primarily for use in image recognition in embedded systems.
Daniel D. Eggers, Eugene Ackerman
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Pulsed LED Illumination for High Speed Imaging
Key Engineering Materials, 2007High speed imaging with decent image quality is difficult because the available exposure times are very short, which leads to the usage of a large aperture. Unfortunately, large aperture also decreases the depth resolution of the system, which reduces the quality of the image.
Aikio, Mika +4 more
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Recent and future advances in high-speed imaging
European Radiology, 1997Long acquisition times have long been a major drawback of magnetic resonance imaging (MRI) and have limited its use for all those organ systems with various types of movement, such as respiration, pulsation, and peristalsis. Recent advances in scanner hard- and software, most notably improvements in gradient and radio frequency coil design, in ...
M, Reiser, S C, Faber
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High Speed Imaging of the Heart
1988Magnetic resonance (MR) imaging has thus far demonstrated enormous capability for visualization of the normal and pathologic heart (1 – 9). MR has accurately defined normal cardiac anatomy (1), congenital cardiac abnormalities (2), acute myocardial infarction (3), chronic myocardial infarction (4), myocardial ischemia (5), cardiac and paracardiac ...
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High-speed digital color imaging pyrometry
Applied Optics, 2011Temperature measurements of high-explosive and combustion processes are difficult to obtain due to the speed and environment of the events. To overcome these challenges, we have characterized and calibrated a digital high-speed color camera that may be used to measure the temperature of such events.
John M, Densmore +3 more
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High speed imaging polarimeter
2012We have implemented a portable high-speed imaging polarimeter using a single ferroelectric liquid crystal cell. The originality of this work lies in the fact that we do not work at the nominal wavelength of the cell. Consequently we obtain the full polarimetric information (i.e. the Stokes vector) with only one modulator.
Marconnet, Pierre +3 more
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Introduction to high-speed imaging of the larynx
Current Opinion in Otolaryngology & Head and Neck Surgery, 2005Katherine A, Kendall +2 more
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