Images captured under poor illumination conditions often exhibit characteristics such as low
brightness, low contrast, a narrow gray range, and color distortion, as well as considerable …

This paper reviews ultrasound segmentation methods, in a broad sense, focusing on
techniques developed for medical B-mode ultrasound images. First, we present a review of …

In surveillance, monitoring and tactical reconnaissance, gathering visual information from a
dynamic environment and accurately processing such data are essential to making informed …

In an environment with poor illumination, such as indoor, night, and overcast conditions, the
image information can be seriously lost, which affects the visual effect and degrades the …

In image processing, restoration is expected to improve the qualitative inspection of the
image and the performance of quantitative image analysis techniques. In this paper, an …

A novel speckle suppression method for medical ultrasound images is presented. First, the
logarithmic transform of the original image is analyzed into the multiscale wavelet domain …

The granular appearance of speckle noise in synthetic aperture radar (SAR) imagery makes
it very difficult to visually and automatically interpret SAR data. Therefore, speckle reduction …

Speckle noise is an inherent property of medical ultrasound imaging, and it generally tends
to reduce the image resolution and contrast, thereby reducing the diagnostic value of this …

Ultrasound imaging systems provide the clinician with noninvasive, low-cost, and real-time
images that can help them in diagnosis, planning, and therapy. However, although the …

This paper presents a novel approach for speckle reduction and coherence enhancement of
ultrasound images based on nonlinear coherent diffusion (NCD) model. The proposed NCD …