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Imaging technology

About: Imaging technology is a research topic. Over the lifetime, 1450 publications have been published within this topic receiving 26186 citations.


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Proceedings ArticleDOI
01 Dec 2014
TL;DR: An automatic and systematic routine based on the system for effectively collecting prisoners' images is proposed, and the system hardware design as well as its image collecting and processing capability are concentrated on.
Abstract: Because of recent advances in imaging technology, the use of image-based evidences, such as faces and tattoos, is increasing dramatically. Face and tattoo images of prisoners are collected regularly for suspect image database establishment. New biometric traits such as skin marks, androgenic hairs, and blood vessels hidden in color images are getting more attention because they are shown to be useful for criminal and victim identification, especially when their faces and tattoos are neither observable nor available. The current manual approach of collecting images of prisoners is extremely time consuming and does not record these new biometric traits. To address this problem, an unprecedented full-body imaging system is developed. Furthermore, an automatic and systematic routine based on the system for effectively collecting prisoners' images is proposed. This paper concentrates on the system hardware design as well as its image collecting and processing capability. The system has been used to collect and process more than 30,000 infrared and color images from 188 subjects. Its performance is very encouraging.

11 citations

Journal ArticleDOI
TL;DR: Both the theoretical deduction and actual experiment prove that the new approach is available to relax the requirement of high positioning resolution and strict circumstances so as to benefit the future commercial applications of the grating-based multiple-information imaging technology.
Abstract: High-resolution hard X-ray grating-based imaging method with conventional X-ray sources provides attenuation, refraction and scattering information synchronously, and it is regarded as the next-generation X-ray imaging technology for medical and industrial applications In this letter, a large phase-stepping approach with at least one order of magnitude lower resolution of the movement is presented to equivalently substitute the current high-positioning-resolution phase-stepping approach Both the theoretical deduction and actual experiment prove that the new approach is available to relax the requirement of high positioning resolution and strict circumstances so as to benefit the future commercial applications of the grating-based multiple-information imaging technology

11 citations

Journal ArticleDOI
TL;DR: Ongoing and future refinements in imaging technology used with contrast enhancement have placed automated quantification of LV function on the brink of widespread clinical use.

11 citations

Journal ArticleDOI
TL;DR: This paper used X-Ray Dental Images and Segmentation is done using Level Set Active Contour for Edge detection, image segmentation, digital dental image, level set active contour (lsac).
Abstract: In the field of medical science, one of the oldest and frequently used techniques, for detecting fractures/defects in human bones is X-Ray. This is worth to do research on segmentation of X-Ray images and inventing the new techniques for the same. In this paper we used X-Ray Dental Images and Segmentation is done using Level Set Active Contour. Keywords Edge detection, image segmentation, digital dental (dd) x-ray image, level set active contour (lsac). 1. INTRODUCTION Medical imaging system has been widely used in various medical applications like orthopedic, ultra sound and many more. Medical imaging is a process used to capture the images of human body, for clinical purposes like diagnosis, anatomy, physiology etc. In its broadest sense; medical imaging can also be said as biological imaging. A number of imaging technologies such as X-ray radiography, magnetic resonance imaging, medical ultra-sonography(generally called as ultrasound), endoscopy, elastography, tactile imaging, thermography etc. that are used to detect the bone structures, organs, DNA structures, blood cells and tissues etc. Apart from imaging, other techniques for measuring and recording purpose such as electrocardiography, electroencephalography, magneto encephalography, records the data in the form of graphs or maps that contain information about measurement locations. These measuring techniques may not be designed to produce images but can be considered as forms of medical imaging. Clinical imaging is generally equated to radiology which uses invisible light spectrum such as gamma rays (used in positron emission tomography), X-rays (used in orthopedics to detect bone structures), ultraviolet rays (used in lasers, photo chemotherapy and phototherapy for the treatment of cancer). Various researches have been done to identify the cavities present in the image and following terms are widely used for that purpose:

11 citations

Journal ArticleDOI
TL;DR: There is still a demand for improved imaging techniques to detect smaller stones and stones in larger patients at lower radiation doses as well as the continued need for the judicious use of all imaging modalities for healthcare cost containment and patient safety.
Abstract: The prevalence of urinary stones in the United States has been described as 1 in 11 persons reporting a history of stones. Imaging plays a crucial role in diagnosis, management, and follow-up for these patients and imaging technology over the last 100 years has advanced as the disease prevalence has increased. CT remains the gold standard for imaging urolithiasis and changes in this technology, with the addition of multidetector CT and dual-energy CT, as well as the changes in utilization of CT, have decreased the radiation dose encountered by patients and allowed for improved stone detection. The use of digital tomography has been introduced for follow-up of recurrent stone formers offering the potential to lower radiation exposure over the course of a patient's lifelong treatment. However, there is still a demand for improved imaging techniques to detect smaller stones and stones in larger patients at lower radiation doses as well as the continued need for the judicious use of all imaging modalities for healthcare cost containment and patient safety.

11 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202312
202224
202190
202091
201984
201879