Segmentation of fused MR and CT images using DL-CNN with PGK and NLEM filtered AACGK-FCM. (July 2021)

• Record Type: Journal Article
• Authors: Reddy, Mummadi Gowthami; Reddy, Palagiri Veera Narayana; Reddy, Patil Ramana
• Is Part Of: Biomedical signal processing and control. Volume 68(2021)
• Publication Date: 2021-07
• Subjects: Medical image segmentation -- Medical image fusion -- Deep learning convolutional neural networks -- Fuzzy c-means -- Pyramid kernel -- Gaussian kernel -- Nonlocal Euclidean median; Signal processing -- Periodicals; Biomedical engineering -- Periodicals; Signal Processing, Computer-Assisted -- Periodicals; Image Processing, Computer-Assisted -- Periodicals; Biomedical Engineering -- Periodicals; 610.28
• DOI: 10.1016/j.bspc.2021.102618
• Languages: English
• ISSNs: 1746-8094

Abstract

Highlights: Utilization of DL-CNN with PGK and image-statistics-based fusion approach for the applications of MR and CT image segmentation. An improved fusion methodology using the computation of weight map, LPK, GPK with band fusion rule is proposed. A new framework on medical image segmentation using fusion approach is presented with novel NLEM-AACGKFCM clustering. A comparative analysis of proposed fusion based segmentation is provided with the FCM, IFKM and GKFCM algorithms. Abstract: Medical imaging studies perform an important role in the analysis of diagnostic data, and its treatment procedures in clinical applications. Because of the variety of imaging technologies, multiple medical imaging modalities focus on multiple kinds of organ/tissue segmentation. Computed tomography (CT) imaging is effective on implants and bones, whereas magnetic resonance (MR) imaging is effective on soft tissues with anatomical information. To obtain the necessary data for exact clinical analysis, surgeons frequently require combinational analysis of different medical imaging data, those are taken by multiple modalities. The aim of this paper is to build a system that would help in detection of the brain tumor from fused MR and CT images through the process of the proposed methodology. The method further uses a deep learning convolutional neural network with pyramid generation kernels (DL-CNN-PGK) for extracting high-level features in order to merge MR and CT images. This data can later be extended to segment a tumor from a fused image using Non-local Euclidean median filtered adaptive angled covariance with Gaussian kernel-based FCM clustering (NLEM-AACGK-FCM). This makes the process of tumor segmentation for cancer analysis and detection quite accurate and efficient. Extensive simulation results demonstrate the superiority of proposed hybrid fusion-based segmentation approaches for medical imagery over both conventional medical image fusion and segmentation approaches, as well as image quality metrics for fusion and segmentation. In addition, several medical statistical parameters such as accuracy, specificity and sensitivity are computed to demonstrate the effectiveness of this proposed fusion-based segmentation approach.