SPECKLE NOISE REDUCTION IN SAR IMAGES USING INFORMATION THEORY

Speckle Noise Reduction in Medical Ultrasound Images

Speckle Noise Reduction in Ultrasound Images

Ultrasound imaging is a widely used medical imaging modality because it is safe, allows real-time visualization of moving structures, and is relatively inexpensive. But the major issue with ultrasound images is the presence of speckle noise, which is an inherent limitation of ultrasound images. Various filters are used to reduce the speckle noise and to enhance the quality of the image. This wo...

Speckle Noise Reduction in Medical Ultrasound Images

Ultrasound imaging is an incontestable vital tool for diagnosis, it provides in non-invasive manner the internal structure of the body to detect eventually diseases or abnormalities tissues. Unfortunately, the presence of speckle noise in these images affects edges and fine details which limit the contrast resolution and make diagnostic more difficult. In this paper, we propose a denoising appr...

Speckle Noise Reduction in Ultrasound Images Using Wavelets: A Review

Biomedical images are generally corrupted by speckle noise and Gaussian noise. Speckle noise is multiplicative type whereas other noises like Gaussian noise are additive type. It is difficult to remove multiplicative noise from images. We have presented various techniques for removing speckle noise from images and image enhancement by thresholding using various spatial domain filters and Wavele...

Speckle Noise Reduction in Ultrasound Images using IWD

This paper implements Intelligent Water Drop (IWD) technique for removal of speckle noise from the ultrasound images. Noise is a factor that degrades the quality of images, so we need to use an efficient technique to remove the noise from the images. IWD algorithm removes the noise and also retains the useful information of the medical image. It improves the quality of an image. In this work, r...