The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Image mosaic is to be combine several views of a scene in to single wide angle view. This paper proposes the image mosaic based on feature based approach. The steps in image mosaic include feature point detection, feature point descriptor extraction and feature point matching. A RANSAC algorithm is applied to eliminate number of mismatches and obtain transformation matrix between the images. The input...
In this paper, a new and efficient method for transform coding of 2-D monochrome images based on orthogonal polynomials has been proposed. The proposed orthogonal polynomials based transform coding system has the encoder, consisting of a polynomial transform operation followed by quantization of transform coefficients and the entropy coding of quantized coefficients. After the encoded bit stream of...
This paper presents the video compression techniques used for the processing of image sequences which are based on time based video. The temporal redundancies among the images are used for efficient code motion. Here, a simple method to increase the accuracy of most interframe predictions is to account for the frame-to-frame motion of objects. Using an interframe predictor, the compression has been...
During the last few decades, there has been a tremendous development in the field of biological sciences. With this, there is an increasing demand for analyzing the molecular or cellular features of the cell in the images, acquired with the electron microscopes (EM). However, despite significant progress in image processing, the efficient detection of features and edges in biological images is still...
Noise removal is an important task in image processing. In this paper we present a novel and efficient algorithm in order to effectively remove noise from color images corrupted by impulse noise. Experimental results show the superior performance of the proposed filtering algorithm compared to the other standard algorithms such as Standard Median Filter (SMF), Median Filter (MF) and Weighted Median...
Ear Biometrics identification is rapidly growing in current biometric industry because of its unique features, stableness and passive of human involvement. Ear biometric system better suits for automatic identification of individual or human. We propose a pixel based feature identification approach for Ear biometric model.
This paper presents an efficient image restoration scheme with the help of Principal Component Analysis (PCA) with local pixel grouping (LPG) and Joint Bilateral Filter (JBF) in spatial domain and it also helps to preserve the image local structures. In LPG-PCA method, a vector variable is modeled by using a pixel and its nearest neighbors and also training samples are extracted using the local window...
Deaf and dumb people communicate among themselves using sign languages, but they find it difficult to expose themselves to the outside world. This paper proposes a method to convert the Indian Sign Language (ISL) hand gestures into appropriate text message. In this paper the hand gestures corresponding to ISL English alphabets are captured through a webcam. In the captured frames the hand is segmented...
Classification of objects has been a significant area of concern in machine vision applications. In recent years, Support Vector Machines (SVM) is gaining popularity as an efficient data classification algorithm and is being widely used in many machine vision applications due to its good data generalization performance. The present paper describes the development of multi-class SVM classifier employing...
Indexing mechanisms find several applications in machineries, equipments and instruments such as, watches, projectors, machine tools, printing and pressing machinery, packaging and automatic machinery, etc., Currently, Geneva mechanism is extensively used for this purpose due to its reduction in shock loading. Therefore, Geneva mechanism should be carefully designed and those attained dimensions inclusive...
Application of computational techniques in the field of medicine has been an area of intense research in recent years. Diabetic Retinopathy and Glaucoma are two retinal diseases that are a major cause of blindness. Regular Screening for early disease detection has been a highly labor - and resource- intensive task. Hence automatic detection of these diseases through computational techniques would...
In this paper, a new algorithm for Gaussian Mixture Model based image segmentation is presented. The proposed method is an extension to traditional Gaussian Mixtures Expectation-Maximization Segmentation. The standard Gaussian Mixture Model(GMM) is the most widely used method for image segmentation where the model parameters can be estimated by the Expectation Maximization algorithm. The Gaussian...
Kovalevsky [8] introduced the tracing algorithm in abstract cellular complexes. In this paper we compared the algorithm with Moore's algorithm and implemented the algorithm with MATLAB. Finally we applied the algorithm to trace the boundaries of medical images.
This paper presents wavelet filter based low contrast multispectral remote sensing image enhancement by using singular value decomposition (SVD). The input image is decomposed into the four frequency subbands through discrete wavelet transform (DWT), and estimates the singular value matrix of the low-low subband image and then, it reconstructs the enhanced image by applying inverse DWT. This technique...
Information security is a very important and high priority topic in the fast growing internet technology. Encryption is one of the ways to secure information. This paper presents an approach to improve the entropy of an encrypted image using Hill-cipher technique. Dual image encryption process involves three stages including Hill-cipher technique. In first stage each pixels of both the images are...
Computer vision field over the last decades, Content-Based Image Retrieval (CBIR) systems are used in order to search, retrieve and browse image from databases. This accumulation of large collections of digital images has created the need for efficient and intelligent schemes for classifying and retrieval of images. In our proposed method, we are using, Clustering Algorithms for retrieving the images...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.