TITLE

Guided filter-based images fusion algorithm for CT and MRI medical images

AUTHOR(S)
Yan Na; Li Zhao; Yingxue Yang; Mengqiao Ren
PUB. DATE
January 2018
SOURCE
IET Image Processing;2018, Vol. 12 Issue 1, p138
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A novel fusion algorithm based on guided filter (GF) for computed tomography (CT) and magnetic resonance imaging (MRI) medical images is proposed. In this algorithm: approximation coefficient and three wavelet coefficients of CT and MRI are obtained by the wavelet transform, respectively. Two weight maps are obtained by comparison of the pixel values of the two approximation coefficients. A GF is designed with the weight maps serving as the input image and the corresponding approximation coefficient serving as the guided image; the GF is used to smooth the weight images and refined weight maps are obtained. The approximation and wavelet coefficients of CT and MRI images are fused by the weighted fusion algorithm with refined weight maps. A fused image of CT and MRI is obtained by the inverse wavelet transform. Comparisons of this algorithm with two fusion algorithms available show that the fused image based on this algorithm contains a greater amount of information, more details and clearer edges than the other two algorithms. Therefore, this algorithm is better at locating the position and shape of the target volume. In the course of treatment, this algorithm can better avoid the surrounding health organs by radiation, protect the health of patients.
ACCESSION #
127194982

 

Related Articles

  • A New Approach of Medical Image Fusion using Discrete Wavelet Transform. Haribabu, Maruturi; Bindu, CH. Hima; Prasad, K. Satya // International Journal on Signal & Image Processing;May2013, Vol. 4 Issue 2, p21 

    MRI-PET medical image fusion has important clinical significance. Medical image fusion is the important step after registration, which is an integrative display method of two images. The PET image shows the brain function with a low spatial resolution, MRI image shows the brain tissue anatomy...

  • Fusion of multi-modal lumbar spine images using Kekre's hybrid wavelet transform. Palkar, Bhakti; Mishra, Dhirendra // IET Image Processing;2019, Vol. 13 Issue 12, p2271 

    Image fusion is the process of merging multiple images to generate a single image called 'fused image' which is more informative than input images in terms of human perception and machine processing. In medical applications, images of the same or different modalities are fused to generate a new...

  • Implementing Fast-Haar Wavelet transform on original Ikonos images to perform image fusion: qualitative assessment. Medina, Javier; Pinilla, Carlos; Joyanes, Luis // Revista Facultad de Ingenieria Universidad de Antioquia;jun2014, Issue 71, p72 

    This article presents the Fast Haar Wavelet Transform (FHWT) algorithm applied to satellite-images fusion. FHWT is applied to both a multispectral image and a panchromatic Ikonos image using the digital image processing toolbox and wavelet toolbox provided by MatLab®. The results of the...

  • Denoising of Poisson and Rician Noise from Medical Images using Variance Stabilization and Multiscale Transforms. Naga Prudhvi Raj, V.; Venkateswarlu, T. // International Journal of Computer Applications;2012, Vol. 57, p24 

    Digital imaging in medicine is improving the medical standards since last few decades. The images acquired by various imaging modalities suffer from various kinds of noise in the acquisition phase. The noise in the image decrease the contrast of the image and it becomes difficult to locate the...

  • Comparison of temporomandibular changes in edentulous and dentulous patients using digital panoramic imaging. Gharge, Nikhil; Ashwinirani, S; Sande, Abhijeet // Journal of Oral Research & Review;Jan-Jun2020, Vol. 12 Issue 1, p17 

    Introduction: Prevalence of TMJ disorder in general population is approximately 50% out of which 3-7% are reported to seek treatment. Various modalities are used to diagnosis TMJ like Panoramic Imaging, Computed Tomography, Magnetic Resonance Imaging, Cone Beam Computed Tomography. The Present...

  • Review of Impulse Noise Reduction Techniques. Koli, Manohar Annappa // International Journal on Computer Science & Engineering;Feb2012, Vol. 4 Issue 2, p184 

    This Paper presents survey of impulse noise reduction techniques. In this paper around ten most popular techniques are implemented and compared. Results of all algorithms are analyzed and efficiency of algorithms is calculated. Algorithms are tested using different types of images i.e. MRI,...

  • A Novel Automatic Block-based Multi-focus Image Fusion via Genetic Algorithm. Yong Yang; Wenjuan Zheng; Shuying Huang // KSII Transactions on Internet & Information Systems;Jul2013, Vol. 7 Issue 7, p1671 

    The key issue of block-based multi-focus image fusion is to determine the size of the sub-block because different sizes of the sub-block will lead to different fusion effects. To solve this problem, this paper presents a novel genetic algorithm (GA) based multi-focus image fusion method, in...

  • A New Image Fusion Method based on Integration of Wavelet and Fast Discrete Curvelet Transform. Pure, Anjali A.; Gupta, Neelesh; Shrivastava, Meha // International Journal of Computer Applications;May2013, Vol. 69, p31 

    Image fusion is one of the most useful term related to digital image processing, computer vision and medical imaging. The objective of image fusion is to extract the useful information from several images into a single image. Recently, more research has been done on wavelet based image fusion...

  • Multi-Source Remote Sensing Image Fusion Algorithm Based on Combined Wavelet Transform and HIS Transform. XU Han; Jiang Tong-bin // Journal of Convergence Information Technology;Oct2012, Vol. 7 Issue 18, p392 

    The image fusion technology is the hot research area and important branch in information fusion and computer vision area. based on the traditional wavelet theory and some strengths of HIS transform, this paper proposes a new algorithm for multi-source remote sensing image fusion based on...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics