A low-cost system for digital image processing of moving images in real time: application to X-ray fluoroscopy.
Comput Methods Programs Biomed
; 39(1-2): 43-9, 1992.
Article
en En
| MEDLINE
| ID: mdl-1302671
A low-cost image processing system and two real-time digital image processing algorithms using parallel processing have been developed to provide automatic equalization of moving images at video frequencies. The algorithms differ in the processing time required and the characteristics of the final image. The system takes an entire image from the video sequence, digitizes it, automatically calculates its histogram and the lowest and highest useful grey levels, equalizes the histogram, and finally converts it to the analogue image. Methods were applied to X-ray fluoroscopy (angiography) images, which are usually saturated or of uniform intensity (low contrast), leading to information loss. An application of these methods is in interventional radiography, which requires images in real time.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Procesamiento de Señales Asistido por Computador
/
Fluoroscopía
/
Aumento de la Imagen
/
Radiografía Intervencional
Tipo de estudio:
Diagnostic_studies
/
Evaluation_studies
/
Health_economic_evaluation
Límite:
Humans
Idioma:
En
Revista:
Comput Methods Programs Biomed
Asunto de la revista:
INFORMATICA MEDICA
Año:
1992
Tipo del documento:
Article
País de afiliación:
España
Pais de publicación:
Irlanda