نتایج جستجو برای: photography
تعداد نتایج: 17424 فیلتر نتایج به سال:
AIMS To evaluate the sensitivity and specificity of wide-field scanning laser ophthalmoscopy (WSLO) in the detection of referable diabetic eye disease, and to compare its performance with digital retinal photography. METHODS Patients enrolled into the study underwent non-mydriatic WSLO imaging, then single- and dual-field mydriatic digital retinal photography, and examination with slit lamp b...
We are just a few years away from celebrating the 200 anniversary of photography. The first permanent photographic record was made by Niépce in 1826, the view from his window at Le Gras. After many development cycles, including some periods of stagnation, photography is now experiencing an amazing period of growth. The changes that started in the mid 90’s and going into the next several years w...
Computational photography is an emergent multidisciplinary field that combines topics in optics, computer graphics, image and signal processing. The objective is usually the development of new algorithms or systems to capture images overcoming the limitations of conventional techniques. Images are not simply captured as 2D projections of a scene, they are rather coded before reaching the sensor...
The digital camera has brought a revolutionary shift in the nature of photography, sweeping aside more than 150 years of technology based on the weird and wonderful photochemistry of silver halide crystals. Curiously, though, the camera itself has come through this transformation with remarkably little change. A digital camera has a silicon sensor where the film used to go, and there’s a new di...
Fluoresing photography has become a prominent branch in opthalmology. During the last few years, it gives us dynamic infor-of circulation of the EYE and its pathologieal disorders.By passing the fluoresein through the retinal and choroidal vessels we are able to record the different typesand stages of disease which these are not exactly diagno-sed by ophthalmoscopy and founds photography.By flu...
In this book, we use the term domestic photography to describe the photographic activities of ordinary people taking and using images for non-professional purposes. Also, in our use of the term we focus on the kind of use in which photography is not a hobby as such but embedded in other activities. The word ‘domestic’ implies that the activities take place mainly in homes, and the home is the h...
In this book, we use the term domestic photography to describe the photographic activities of ordinary people taking and using images for non-professional purposes. Also, in our use of the term we focus on the kind of use in which photography is not a hobby as such but embedded in other activities. The word ‘domestic’ implies that the activities take place mainly in homes, and the home is the h...
between the progression of the disease and SACE activity. Conversely, we recently observed three cases of rapidly progressive pneumoconiosis (CWP, 1 case; silicosis, 2 cases) characterized by very high SACE activity (>mean + 4 units of standard deviation), associated with an increased alveolar lymphocytosis. Evidence of elevated SACE levels in non pneumoconiotic coal miners lead us to suggest t...
In developing countries, similar to other parts of the world, smartphones and social networks are highly popular. there are many challenges in use of social networks by the health system staff. Clinical photography plays an important role in the medical practice to determine the state, treatment and progression of a patient’s condition. ethical education is needed on how to take and share clini...
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