i-manager's Journal on Image Processing (JIP)


Volume 1 Issue 4 October - December 2014

Research Paper

Identification of Volcano Hotspots by using Resilient Back Propagation (RBP) Algorithm Via Satellite Images

S. Muni Rathnam* , T. Ramashri**
* H.O.D of Electronics and Communication, Balaji Institute of Engineering And Management Studies, Nellore(D), Andhra Pradesh, India.
** Professor in Electronics and Communication, Sri Venkateswara College of Engineering, SV University, Tirupati, Chittoor (D), Andhra Pradesh, India.
Rathnam, M., and Ramashri, T. (2014). Identification of Volcano Hotspots by using Resilient Back Propagation (RBP) Algorithm Via Satellite Images. i-manager’s Journal on Image Processing, 1(4), 1-7. https://doi.org/10.26634/jip.1.4.3034

Abstract

The explosive growth of remote sensing technology, internet and multimedia systems poses great challenge in handling huge amount of data. Advancement in the field of Remote Sensing has gone to an extent of taking the geospatial accuracy to few centimeters. The use of remote sensing of natural hazards and disasters has become common. Remote sensing plays a vital role because of their pressing need in the analysis of natural hazards. Among the various hazards, the Volcanoes are terrific hazards which may harm the nature as well as the living things. Here, the identification of volcanoes and their hotspot identification are important to protect the living things. Hence, the present investigation is utilized to identify the volcanoes and their hotspot from the satellite images. Therefore to overcome the aforesaid problems, we are going to identify the hotspot of volcano using the Artificial Neural Network (ANN) which uses Resilient Back Propagation (RBP) Algorithm. At first, the color space of the satellite image will be converted to another color space to identify the contents of the image clearly. Then image will be segmented to identify the volcano's hotspot. To improve the accuracy, eight Statistical parameters are extracted from satellite image such as mean, variance, contrast, homogeneity, energy, correlation, standard deviation and entropy. The proposed mechanism will be developed with the aid of the platform MATLAB (version 7.11).

Research Paper

Unconstrained Handwritten Text Line Segmentation: An Improved Technique

Y.C. Kiran* , Mohammadi**, V.N. Manjunath Aradhya***
* Department of Computer science, Jain University, Bengaluru, India.
** Behsan Mellat, Iran
*** Department of MCA, Sri Jayachamarajendra College of Engineering, Mysuru, India.
Kiran, Y.C., Mohammadi, and Aradhya, V.N. (2014). Unconstrained Handwritten Text Line Segmentation: An Improved Technique. i-manager’s Journal on Image Processing, 1(4), 8-16. https://doi.org/10.26634/jip.1.4.3035

Abstract

Handwritten text line segmentation is still a challenging area in document image analysis. This is due to the variation of handwritten style from individual to individual causing many problems like multi-skewed, overlapping and touching text lines. In this paper, authors have proposed an improved technique for handwritten text line segmentation to the method proposed in [1]. The proposed method consists of four major phases, which includes piece-wise painting algorithm, skew estimation, line drawing and edge detection process. The proposed method is implemented on dataset of Kannada, English and comprising of Persian, Oriya and Bangla documents. The success rate of the technique, as observed experimentally was satisfactory and it may contribute significantly for the development of applications related to handwritten OCR (Optical Character Recognition).

Research Paper

Performance Analysis of Coiflets Wavelets forSegmentation of Heart Sound

Lekram Premlal Bahekar* , Sharadkumar Ghadale**, Kiran Kawale***, Mahendra Bisen****
*-**** Assistant Professor and Research Scholar, Department of Electronics & Telecommunication, Madhukarrao Pandav College of Engineering, Bhandara, India.
Bahekar, L.P., Ghadale, S., Kawale, K., and Bisen, M. (2014). Performance analysis of Coiflets wavelets for segmentation of heart sound. i-manager’s Journal on Image Processing, 1(4), 17-25. https://doi.org/10.26634/jip.1.4.3036

Abstract

This paper discusses the usage of digital signal processing techniques on phonocardiography (PCG) waveforms and presents all the cardiac signals and their dates on the PC. This makes it easy for medical professionals to interpret disorders and make a better diagnosis. A segmentation which detects a single cardiac cycle (S1-Systole-S2-Diastole) of Phonocardiogram (PCG) signals using coiflets wavelet family and heart sound is classify into three types Normal (N), Systolic murmur (S) and Diastolic murmur (D). This paper proposed an adaptive sub-level tracking algorithm based on wavelet transform to separate the S1 and S2 from other components such as murmurs and noises Citerai of time interval, energy and phonocardiogram (PCG) collecting position which are used to identify S1 with respect to the beginning of each cardiac cycle. The pre-processing before calculating energy of PCG signal by wavelet, segments the PCG signal, and finds different parameters for segmentation. This paper presents an analysis of coiflets wavelet segmentation of heart sound segmentation techniques and suggested performance measures.

Research Paper

Performance analysis of Anisotropic Diffusion filtering with Mathematical Morphology

B. Sridhar* , K.V.V.S. Reddy**, A.M. Prasad***
* Professor,Department of Electronics and Communication, Lendi Institute of Engineering & Technology, Vizianagaram, India.
**Professor, Department of Electronics and Communication, Andhra University, Visakhapatnam, India.
***Professor, Department of Electronics and Communication, JNT University, Kakinada, India.
Sridhar, B., Reddy, K.V.V.S., and Prasad, A.M. (2014). Performance Analysis Of Anisotropic Diffusion Filtering With Mathematical Morphology. i-manager’s Journal on Image Processing, 1(4), 26-35. https://doi.org/10.26634/jip.1.4.3037

Abstract

Mathematical Morphology is an efficient tool to extract the features from robust medical images. It provides a broad set of operations, which highlight the edges and improve the quality of the image. Anisotropic diffusion filtering has been widely applied as a mechanism for intra region smoothing of images. This paper aims to extend existing work in the development quality of medical image by using mathematical morphology and anisotropic vector gradient operators. Such types of operators may be anisotropic with respect to their shape and capacity to smooth the image locally as part of the feature extraction process. The proposed algorithm is applied on mammogram images. The performance of method is evaluated through peak signal to noise ratio, mean square error and structure similarity index measurement are calculated and plotted against the number of iterations of filter.

Review Paper

An investigation of Various Image Denoising Filters for Gray Scale and color Images

V. Murugan* , T. Avudaiappan**, R. Balasubramanian***
* Research Scholar, Department of Computer Science & Engineering, Manonmaniam Sundaranar University, Tirunelveli, Tamilnadu.
** Research Scholar, Department of Computer Science & Engineering, Manonmaniam Sundaranar University, Tirunelveli, Tamilnadu
*** Professor, Department of Computer Science & Engineering, Manonmaniam Sundaranar University, Tirunelveli, Tamilnadu.
Murugan, V., Avudaiappan, T., and Balasubramanian, R. (2014). An investigation of Various Image Denoising Filters for Gray Scale and color Images. i-manager’s Journal on Image Processing, 1(4), 36-42. https://doi.org/10.26634/jip.1.4.3038

Abstract

A variety of medical and satelite images are essential as sources of in sequence for study and understanding. When an image is transformed from one form to another such as scanning, transmitting, digitizing, storing etc., degradation occurs to the output image. For this reason, the output image wants to be better in order to be recovered . This paper presents a detailed survey on various noise detection and reduction algorithms. Different noises will affect the image in different ways. A detailed survey of the research is needed in order to design the filter which will execute the needed aspects along with handling most of the image filtering issues