Results 31 to 40 of about 20,605,475 (335)

Contrast-Enhanced High-Frame-Rate Ultrasound Imaging of Flow Patterns in Cardiac Chambers and Deep Vessels.

Ultrasound in Medicine and Biology, 2020
Cardiac function and vascular function are closely related to the flow of blood within. The flow velocities in these larger cavities easily reach 1 m/s, and generally complex spatiotemporal flow patterns are involved, especially in a non-physiologic ...
H. Vos, J. Voorneveld, Erik Groot Jebbink, C. Leow, Luzhen Nie, Annemien E. van den Bosch, M. Tang, S. Freear, J. Bosch   +8 more
semanticscholar   +1 more source

Smoothness perception : investigation of beat rate effect on frame rate perception [PDF]

, 2013
Despite the complexity of the Human Visual System (HVS), research over the last few decades has highlighted a number of its limitations. These limitations can be exploited in computer graphics to significantly reduce computational cost and thus required ...
Kurt Debattista, Chalmers, Alan, Chalmers, A., Vedad Hulusic, Debattista, Kurt, Debattista, K., Alan Chalmers, Hulusić, Vedad, Hulusic, V.   +8 more
core   +1 more source

Integrated system for ultrasonic, elasticity and photoacoustic imaging [PDF]

, 2008
textBy integrating three complementary imaging techniques - ultrasound, elasticity and photoacoustic imaging, a hybrid imaging system utilizing an array transducer is proposed for various biomedical imaging applications including cancer detection ...
Park, Suhyun, 1977-
core   +1 more source

Towards high-frame-rate data acquisition for ultrasound and photoacoustic imaging with high signal-to-noise ratio [PDF]

Journal of Sensors and Sensor Systems
We present an eight-channel evaluation board that enables fast data acquisition for ultrasound sonography (USG) and photoacoustic imaging (PAI). High frame rates enable averaging, resulting in an improved signal-to-noise ratio (SNR).
S. Kindorf, S. Kindorf, F. Gutmann, F. Gutmann, C. Weber, C. Weber, B. Bierer, B. Bierer, J. Wöllenstein, J. Wöllenstein, C. Stoeckel   +10 more
doaj   +1 more source

Simultaneous Coded Plane-Wave Imaging Using an Advanced Ultrasound Forward Model

Applied Sciences, 2022
In the quest for higher acquisition rates of ultrasound images, the simultaneous emission of encoded waves has the potential to overcome the trade-off between acquisition time and image quality.
Frank Nicolet, Denis Bujoreanu, Ewen Carcreff, Hervé Liebgott, Denis Friboulet, Barbara Nicolas   +5 more
doaj   +1 more source

High-frame-rate volume imaging using sparse-random-aperture compounding

Physics in Medicine and Biology, 2020
High-frame-rate volume imaging (HFR-VI) aims to provide high-quality images with high-temporal information. Despite its potential, HFR-VI translation into clinical applications has been challenging due to the high cost of the equipment required to drive ...
M. Bernal, Bryan W. Cunitz, D. Rohrbach, R. Daigle   +3 more
semanticscholar   +1 more source

Handheld probe for portable high frame photoacoustic/ultrasound imaging system [PDF]

, 2013
Photoacoustics is a hybrid imaging modality that is based on the detection of acoustic waves generated by absorption of pulsed light by tissue chromophors.
Steenbergen, Wiendelt, A. Kohl, Kohl, A., Daoudi, Khalid, Tisserand, S., Rabot, O., P. J. van den Berg, S. Tisserand, O. Rabot, W. Steenbergen, van den Berg, P.J., P. Brands, K. Daoudi, Oraevsky, Alexander A., Brands, P.J., Wang, Lihong V.   +15 more
core   +1 more source

P84 HIGH-FRAME RATE VECTOR FLOW IMAGING: RELATIONSHIP BETWEEN CAROTID BIFURCATION GEOMETRY AND FLOW PATTERNS

Artery Research, 2017
Background: The laminar flow movement in straight arteries is affected by anatomical factors such as bifurcation, lumen diameter changes or plaques. As a consequence of the local deceleration, the detachment of the boundary layer from the wall develops a
A. Alfredo Goddi, L. Luca Aiani, Y. Yigang Du, X. Xujin He, Y. Yingying Shen, L. Lei Zhu   +5 more
doaj   +1 more source

Focusing Algorithms and Moving Target Detection Based on Video SAR

Leida xuebao, 2020
Video Synthetic Aperture Radar (SAR) provides dynamic information about an observation scene in a video to the human eye, which can be very useful for the real-time detection of the ground maneuvering targets.
DING Jinshan
doaj   +1 more source

25,000 fps Computational Ghost Imaging with Ultrafast Structured Illumination

Electronic Materials, 2022
Computational ghost imaging, as an alternative photoelectric imaging technology, uses a single-pixel detector with no spatial resolution to capture information and reconstruct the image of a scene.
Hongxu Huang, Lijing Li, Yuxuan Ma, Mingjie Sun   +3 more
doaj   +1 more source