the fusion of medical images is very useful for clinical application. generally, the pet image indicates the function of tissue and the mri image shows the anatomy of tissue. in this article we fused mri and pet images and the purpose is adding structural information from mri to pet image. the images decomposed with curvelet transform, and then two images fused with applying fusion rules. we us...

abstract currently in iran, some manual methods are used for measuring spray droplet size which is very laborious and time consuming. in this paper, a software is presented based on image processing techniques, which is suitable for small object detection purpose that can be used in blob analysis of sprayer calibration and other similar applications. the algorithms have been implemented and ada...

Noise affects images during transmission or processing. The quality of image is affected by noise so to retain the quality of image an operation is performed that is called de-noising. De-noising basically deals with the removal of noise from noise contaminated version of image. There are different method of image de-noising depend upon the noise that is present in the image. This paper present...

Les signes clectrocardiographiques classiques nc sont pas toujours suMisants pour ·le diagnostic de la tachycardie ventriculaire. Nous avons insiste d'une part sur !'importance diagnostique des complex de ca· ptures et d'auters part sur l'import.anre des procedcs nouveux Tels :  1- Enrcgishemcnt du potentiel du faisreau de  2- Stimulation references endocavitaire.

Image processing is often necessary for extracting the content of ancient documents. We present here techniques for restoring images and removing noise, extracting document structures (separating graphical elements and illustrations from text, extracting text lines) and, when possible, recognizing the textual or musical symbols which may be present in the image. These techniques, which are clas...

1 Resident Physician in Radiology and Image Diagnostics Instituto de Cardiologia do RS/ FUC. 2 Radiologist SIDI Medicina por imagem. 3 MSc in Health Sciences: Cardiology, Hemodynamics. 4 MD. Cardiovascular Radiologist. Head of the Radiology and Image Diagnostics at SIDI. 5 MD. Cardiovascular Radiologist. Head of the Radiology and Image Diagnostics at SIDI. SIDI Medicina por Imagem e Instituto d...

The use of the paper is organized as follows section type of noise can be introduced in an images noise estimation and noise removal on various digital images. Before analysis or using image to ensure the quality of image in image processing noise estimation and removal are very important step. Due to low contrast and high noise in an image most algorithms have not yet attained a desirable leve...

Delayed-Enhancement Cardiac Magnetic Resonance (DE-CMR) imaging with a gadolinium-based contrast agent strongly correlates with infarct size [1] and is a major tool for the assessment of myocardial viability [2]. A phase-sensitive inversion-recovery (PSIR) technique has been described at 1.5 T for assessment of myocardial infarct size [3]. With this technique, the signal polarity of the inversi...