Edge Detection Using Generalized Root Signals of 2-D Median Filtering
نویسندگان
چکیده
In this paper, we will define generalized real and generalized root signals of two dimensional median filtering. A new edge detection method based on generalized root signals of two dimensional median filtering will be proposed. Simulation results will be given and compared with the Sobel and Laplace edge detectors.
منابع مشابه
Automatic detection of liver tumor motion by fluoroscopy images
Background: A method to track liver tumor motion signals from fluoroscopic images without any implanted gold fiducial markers was proposed in this study to overcome the adverse effects on precise tumor irradiation caused by respiratory movement. Materials and Methods: The method was based on the following idea: (i) Before treatment, a series of fluoroscopic images corresponding to different bre...
متن کاملGeological noise removal in geophysical magnetic survey to detect unexploded ordnance based on image filtering
This paper describes the application of three straightforward image-based filtering methods to remove the geological noise effect which masks unexploded ordnances (UXOs) magnetic signals in geophysical surveys. Three image filters comprising of mean, median and Wiener are used to enhance the location of probable UXOs when they are embedded in a dominant background geological noise. The study ar...
متن کاملExperimental and numerical study of delamination detection in a WGF/epoxy composite plate using ultrasonic guided waves and signal processing tools
Reliable damage detection is one of the most critical tasks in composite plate structures. Ultrasonic guided waves are acknowledged as an effective way of structural health mo...
متن کاملEnhancing magnetic signals in unexploded ordnances (UXO) detection based on edge-preserved stable downward continuation method
This paper describes an efficient edge-preserved regularization algorithm for downward continuation of magnetic data in detection of unexploded ordnance (UXO). The magnetic anomalies arising from multi-source UXO can overlap at a height over the ground surface, while causative sources may not be readily separated due to low level of signal-to-noise ratio of the observed data. To effectively the...
متن کاملApplication of Genetic Algorithm in Median Filtering
Images are often corrupted by impulse noise due to errors generate d in noisy sensors or communication channels. Two types of impulse noise can be defined: 1) fixed-valued and 2) random-valued. In many applications it is very important to remove noise in the images before some subsequent processing such as edge detection, object recognition and image segmentation. In this paper an adaptive filt...
متن کامل