Skeletonization is a morphological operation that transforms an original object into a subset, which is called a ‘skeleton’. Skeletonization has been intensively studied for decades and is a challenging issue especially for special target objects. This paper proposes a novel approach to the skeletonization of text images based on stroke width detection. First, the preliminary skeleton is detect...

A test statistic for equality of two covariance matrices following the complex Wishart distribution has previously been used in new algorithms for change detection, edge detection and segmentation in polarimetric SAR images. Previously, the results for change detection and edge detection have been quantitatively evaluated. This paper deals with the evaluation of segmentation. A segmentation per...

Traffic analysis and anomaly detection have been extensively used to characterize network utilization as well as to identify abnormal network traffic such as malicious attacks. However, so far, techniques for traffic analysis and anomaly detection have been carried out independently, relying on mechanisms and algorithms either in edge or in core networks alone. In this paper we propose the noti...

This paper presents a hybrid approach to face detection and feature extraction. The remarkable advancement in technology has enhanced the use of more accurate and precise methods to detect faces. This paper presents a combination of three well known algorithms ViolaJones face detection framework, Neural Networks and Canny edge detection method to detect face in static images. The proposed work ...

Collinear arrangement of objects (such as, text elements or continuous lines) is integral part of any office document image, whether structured or unstructured. The ability to analyze such an organization of objects thus provides the basic and important building block for a plethora of image analysis applications. Most Hough Transform-based line detection approaches do not furnish line widths a...

We present the results of a 21 cm neutral hydrogen (H i) line detection experiment in the direction of 18 low luminosity dwarf galaxies of the Centaurus A group, using the Australia Telescope National Facility 64m Parkes Radio Telescope and the Australia Telescope Compact Array. Five dwarfs have H i masses between MHI = 4 × 10 5 to MHI = 2.1 × 10 7 M⊙ and 0.04 < MHI/LB < 1.81 M⊙L −1 ⊙,B. The ot...

In this paper a novel approach for the detection of breast cancer is used. Many imaging techniques are introduced for the breast cancer diagnosis. In this ant colony optimization (ACO) based edge detection technique is used for the diagnosing of breast cancer. This process is used to detect outlines of an object and boundaries between objects present and the background in the image. Experimenta...

We propose the motion direction histogram (MDH) as a new feature for abrupt shot boundary detection in video sequences. Conventional methods for abrupt shot boundary detection use a threshold difference as a measure of the feature values between consecutive images. It is difficult for such conventional methods t o detect shot boundaries in "busy" scenes, in which intensities change substantiall...

In the process of image segmentation, the basic ant colony algorithm has some disadvantages, such as long searching time, large amounts of calculation, and rough image segmentation results. This paper proposes an improved ant colony algorithm. Applying different transfer rules and pheromone update strategies to different regions of an image, including background, target, edge and noise, we deve...