Estudo de dois sistemas radiograficos digitais submetidos a diferentes condições de trabalho em relação ao ruido
AUTOR(ES)
Gisela Andre Paganini
DATA DE PUBLICAÇÃO
2001
RESUMO
The aim of the present work was to evaluate the noise in the digital images of the systems Digora and DenOptix in different intensity light environment. It was toa studied the time total to erase the plate of system DenOptix. The objective analysis of the phantoms images was carried through by means a computacional programo The results had show that the Digora system had the best image quality with low noise without alteration in different condition of the environment DenOptix system, when the read was realized in environment with light on, it had a increase of the noise but without estatistic difference. With relation on the sensors position, with the increase of the time, increased the noise in the image in lateral position on the sensors wasgreater. Than in front of the monitor the subjective assessment do not show the influence of the environment light or the radiation of the computer. In related a erasing the plate of system DenOptix, it conc1uded that this factor is direct associated to the radiation dose and the intensity of light of the negatoscope
ASSUNTO(S)
ruido - medição processamento de imagens - tecnicas digitais - radiografias
ACESSO AO ARTIGO
http://libdigi.unicamp.br/document/?code=vtls000244047Documentos Relacionados
- Estudo comparativo das analises subjetiva e objetiva de quatro sistemas radiograficos digitais intrabucais
- Estudo clínico comparativo da qualidade de imagem de três sistemas radiográficos digitais, filme E-speed e filme digitalizado
- Estudo de dois grupos de alunos, submetidos a diferentes metodologias, quanto ao nivel de informação e de desenvolvimento cognitivo
- Estudo comparativo da eficacia de diferentes sistemas radiograficos digitais na determinação do comprimento de limas endodonticas
- Expectativas de jovens do ensino médio público em relação ao estudo e ao trabalho