نتایج جستجو برای: correction

تعداد نتایج: 165307  

2009
Feng Shao

© 2009 ETRI Journal, Volume 31, Number 4, August 2009 ABSTRACT⎯In multiview imaging systems, color correction is adopted to eliminate color inconsistency between views. However, the influence of highlights on color correction has not been considered before. In this letter, a new color correction method based on highlight detection is proposed. The method is designed to treat highlight and highl...

Journal: :medical journal of islamic republic of iran 0
e. ameri shafa yahyaiyan hospital, iran university of medical sciences, tehran, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی ایران (iran university of medical sciences)سازمان های دیگر: shafa yahyaiyan hospital h. behtash iran university of medical sciencesسازمان اصلی تایید شده: دانشگاه علوم پزشکی ایران (iran university of medical sciences) b. mobini iran university of medical sciencesسازمان اصلی تایید شده: دانشگاه علوم پزشکی ایران (iran university of medical sciences) b. bouzari fellow of spine surgery v. tari fellow of spine surgery

abstract background: patient satisfaction with the cosmetic result of spinal fusion surgery was studied in 40 cases of adolescent idiopathic scoliosis. neutral or dissatisfied patients were compared with satisfied patients in several physical and psychological characteristics. the aim of the study was to determine whether adolescents generally report satisfaction with the postoperative appearan...

Journal: :مجله دانشکده پزشکی اصفهان 0
منوچهر امیری دوان مهدی سنبلستان حمید رضا حسنانی حمید رضا ابطحی

introduction carhart's notch (cn) is a major audiometric criterion for diagnosis of otosclerosis; it is an abnormal audiometric pattern due to fixation of stapes and relative reduction in perilymphatic motion. methods 130 patients (146 diseased ears) were evaluated in this study. audiometric tests were performed for each patient 2 weeks before and 6 month after surgery, and the average decline ...

Journal: :journal of applied research in water and wastewater 2014
matthieu dufresne josé vazquez

long-throated flumes are measurement structures often used in water and wastewater systems to determine the flow discharge. the head-discharge relationship of long-throated flumes is traditionally determined following the critical flow theory and the boundary layer concept. after a review of the traditional approach and an analysis of the approximate assumptions of the boundary layer approach, ...

Journal: :iranian journal of nuclear medicine 2005
arman rahmim

with the arrival of increasingly higher resolution pet systems, small amounts of motion can cause significant blurring in the images, compared to the intrinsic resolutions of the scanners. in this work, we have reviewed advanced correction methods for the three cases of (i) unwanted patient motion, as well as motions due to (ii) cardiac and (iii) respiratory cycles. for the first type of motion...

Journal: :asia oceania journal of nuclear medicine and biology 0
yasuyuki takahashi department of radiology, gunma prefectural college of health sciences, maebashi, japan mizuki mochiki department of ragiological technology, gunma cardiovascular center, maebashi, japan keiko koyama department of diagnostic radiology and nuclear medicine, gunma cardiovascular center, maebashi, japan toshihiko ino department of ragiological technology, gunma cardiovascular center, maebashi, japan hiroyuki yamaji department of ragiological technology, national kyusyu medical center, fukuoka, japan atsuko kawakami department of ragiological technology, red cross maebashi hospital, maebashi, japan

objective(s): use of a positron emission tomography (pet)/single-photonemission computed tomography (spect) system facilitates the simultaneousacquisition of images with fluorine-18 fluorodeoxyglucose (18f-fdg) andtechnetium (99mtc)-tetrofosmin. however, 18f has a short half-life, and 511kev compton-scattered photons are detected in the 99mtc energy window.therefore, in this study, we aimed to ...

Journal: :فیزیک زمین و فضا 0
حسام شینی کیماسی عبدالرحیم جواهریان ابوالفضل مسلمی

the application of traditional nmo-correction techniques in the processing of seismic data may result in severe distortion. this distortion is observed as a decrease in frequency content (nmo stretch). this may be seen as the source of problems in the processing with stretch. in this paper, cnmo method is applied which doesn't have the `stretching effects' of conventional nmo correcti...

Journal: :بینا 0
محمدعلی جوادی m javadi تهران- پاسداران- بوستان نهم- بیمارستان لبافی نژاد- مرکز تحقیقات چشم مهرداد محمدپور m mohammadpour تهران- پاسداران- بوستان نهم- بیمارستان لبافی نژاد- مرکز تحقیقات چشم حسین محمدربیع h mohammad rabei تهران- پاسداران- بوستان نهم- بیمارستان لبافی نژاد- مرکز تحقیقات چشم

purpose: to report a case who had undergone lasik in his right eye and prk in the fellow eye for correction of equivalent myopia but developed progressive post-operative keratectasia only in the right eye. patient and findings: a 30-year-old man had undergone lasik in right eye 3 years ago for correction of refractive error of -1.75  -1.50@48° and prk in left eye 2 years ago for correction of r...

Journal: :Optometry and vision science : official publication of the American Academy of Optometry 2012
Karthikeyan Baskaran Robert Rosén Peter Lewis Peter Unsbo Jörgen Gustafsson

PURPOSE To investigate the effect of eccentric refractive correction and full aberration correction on both high- and low-contrast grating resolution at the preferred retinal locus (PRL) of a single low-vision subject with a long-standing central scotoma. METHODS The subject was a 68-year-old women with bilateral absolute central scotoma due to Stargardt disease. She developed a single PRL lo...

2012
Karthikeyan Baskaran Robert Rosén Peter Lewis Peter Unsbo Jörgen Gustafsson

Purpose. To investigate the effect of eccentric refractive correction and full aberration correction on both highand low-contrast grating resolution at the preferred retinal locus (PRL) of a single low-vision subject with a long-standing central scotoma. Methods. The subject was a 68-year-old women with bilateral absolute central scotoma due to Stargardt disease. She developed a single PRL loca...

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