نتایج جستجو برای: ray images

تعداد نتایج: 543515  

2007
António J. R. Neves Armando J. Pinho Denis R. Santos

Digital medical imaging systems like Picture Archiving and Communication System (PACS) has become a crucial tool supporting both decision making and treatment procedures in medical environments. Advantages come from reduced storage and management costs associated with image data and increased intra and interinstitutional portability of data in communication networks. One of the most important b...

2018
Bing Wang Dongyue Tan Tung Lik Lee Jia Chuan Khong Feng Wang Dmitry Eskin Thomas Connolley Kamel Fezzaa Jiawei Mi

The data presented in this article are related to the paper entitled 'Ultrafast synchrotron X-ray imaging studies of microstructure fragmentation in solidification under ultrasound' [Wang et al., Acta Mater. 144 (2018) 505-515]. This data article provides further supporting information and analytical methods, including the data from both experimental and numerical simulation, as well as the Mat...

2015
Aki Takeda Keiji Yoshimura Steven H. Saar

The XRT Synoptic Composite Image Archive (SCIA) is a storage and gallery of X-ray full-Sun images obtained through the synoptic program of the X-Ray Telescope (XRT) onboard the Hinode satellite. The archived images provide a quick history of solar activity through the daily and monthly layout pages and long-term data for morphological and quantitative studies of the X-ray corona. This article s...

2007
Ahmed G. Mahgoub Ziad A. El-Sahn A. El-Badawy

In this paper the feedback pulse coupled neural network (FPCNN) is used for the segmentation and edge detection of x-ray images generated from American Science and Engineering (AS&E) Inc. systems used for cargo and pallet search. We prove that this technique is able to isolate important parts of x-ray images. Furthermore, our results show that the FPCNN has a good ability to retrieve small dens...

2014
SUMATHI GANESAN T. S. SUBASHINI

Of late, the amount of digital X-ray images that are produced in hospitals is increasing rapidly. Efficient storing, processing and classifying X-ray images have thus become an important research topic. Due to the increase in medical digital images, there is a rising need of managing this data properly and accessing them accurately. To overcome the difficulties of manual classification, the aut...

Journal: :Medical physics 2005
Bart Carelsen Niels H Bakker Simon D Strackee Sjirk N Boon Mario Maas Jörg Sabczynski Cornelis A Grimbergen Geert J Streekstra

Current methods for imaging joint motion are limited to either two-dimensional (2D) video fluoroscopy, or to animated motions from a series of static three-dimensional (3D) images. 3D movement patterns can be detected from biplane fluoroscopy images matched with computed tomography images. This involves several x-ray modalities and sophisticated 2D to 3D matching for the complex wrist joint. We...

1988
Jorma Skyttä Tapio Takala

Ray tracing is a superior method for producing realistic images. It can take into account all natural phenomena covered by classical ray optics in image formation, and that without any extra modeling effort. The main disadvantage is its high cost in terms of computer time. Production of ray traced images of reasonably complex scenes takes long in real time with a moderate general purpose comput...

Journal: :Publications of the Astronomical Society of the Pacific 2000

Journal: :Advances in Applied Probability 2006

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