Content-Based Medical Image Retrieval Based on Image Feature Projection in Relevance Feedback Level
Journal Title: روش های هوشمند در صنعت برق - Year 2014, Vol 5, Issue 17
Abstract
The purpose of this study is to design a content-based medical image retrieval system and provide a new method to reduce semantic gap between visual features and semantic concepts. Generally performance of the retrieval systems based on only visual contents decrease because these features often fail to describe the high level semantic concepts in user’s mind. In this paper this problem is solved using a new approach based on projection of relevant and irrelevant images in to a new space with low dimensionality and less overlapping in relevance feedback level. For this purpose, first we change the feature space using Principal Component Analysis (PCA) and Linear Discriminant Analysis (LDA) techniques and then classify the feedback images applying Support Vector Machine (SVM) classifier. The proposed framework has been evaluated on a database consisting of 10,000 medical X-ray images of 57 semantic classes. The obtained results show that the proposed approach significantly improves the accuracy of retrieval system.
Authors and Affiliations
Mohammad Behnam, Hossein Pourghassem
Keywords
Related Articles
- EP ID EP328660
- DOI -
- Views 103
- Downloads 0
Silica photonic crystal fiber structure in order to simplify the process of making them
In this research, a new structure of photonic crystal fibers(PCFs) will be proposed,in which instead of using the aire- holes in the cladding region, the flourine(2%) doped solid silica rods in order to reduce the proble...
Novel Control Strategy for VSI and CSI Active Filters and Comparing These Two Types of Filters
Recently to eliminate the harmonics and improve the power factor of the power networks, much attention has been attracted to active filters. The advantages of these filters are lower volume and their better compensating...
Robust Digital Image Watermarking against Cropping and Salt & Pepper Noise using two-step Sudoku
Several methods are exploited to watermark digital images as a safety measure for storing information, but an attacker can destroy the information by cropping a segment of the watermarked image or doing salt and pepper n...
Longitudinal Shunt Slot Excitation by Wiggly Ridge Substrate Integrated Waveguide
Application of a substrate integrated waveguide with wiggly ridge shape is presented for excitation longitudinal shunt slot antenna. Two main design equations for design substrate integrated waveguide structure and get p...
A Systematic Approach to Sensitivity Analysis of Fault Tolerant Systems in NMR Architecture
A fault tree illustrates the ways through which a system fails. It states different ways in which combination of faulty components result in an undesired event in the system. Being used in phases such as designing and ex...