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.
Facial expression recognition and gender classification has many applications in affective computing as well as computer vision respectively. The main applications involve human computer interaction, driver safety etc. Principal component analysis(PCA), Linear discriminant analysis (LDA), Linear binary pattern(LBP) algorithms are used in most cases for the detection of facial expression and gender...
Audio watermarking is a data hiding technology widely used to increase the authentication of audio files and for copyright protection. Watermarking techniques hides copyright information, which can be a binary sequence or an image, within the audio signal in such a way that it is not perceivable by the listener. A large number of audio watermarking techniques are available. Authentication requires...
Breast cancer is the 2nd leading cancer diagnosed among world. The available methods like Mammogram, MRI, CT, micro wave imaging and so on can detect both cysts and tumors in breast but possesses certain demerits. Ultra Sound is considered as an efficient way of breast cancer detection. This paper forward a method to classify benign and malignant tumor based on its boundary. Adaptive histogram equalization...
Alzheimer's Disease (AD) is an irreversible neuro degenerative brain disorder. The progression of AD can be traced from Magnetic Resonance Images (MRI) and Positron Emission Tomography (PET) images. The cortical features can be well extracted from MR images while PET images clearly resolve the subcortical structures of brain. The registration approach used in this paper is a multistructure registration...
In this paper, we obtained the closed form analytical expression for the average detection probability of the energy detector in terms of series form expression over λ — μ fading distribution. We start with the no-diversity case, then further results are extended to two diversity reception cases such as square-law-selection (SLS) and collaborative detection case. Since arriving analytical expression...
Hyperspectral images possess high spectral resolution, and are capable to give spectral information of different elements in the scene. The spatial resolution of hyperspectral image is very low. This leads to mixing of pixels. Spectral Unmixing algorithms are the most extensively used hyperspectral image analysis techniques for decomposing the mixed pixels. However spectral unmixing does not enhance...
Transmission of images via internet and it's authentication is of great importance with the booming techniques in the field of networking and information security. Medical imaging and it's secure transmission have grown up as a necessity. This paper focuses on reversible watermarking of medical images, both grey scale as well as color, preserving its ROI. It also effectively manages patient health...
For last-mile networks the in-building electric power lines are considered an attractive medium for high-speed data transmission. In this paper we consider the channel response in the 1–30MHz band. The development of a Broadband PowerLine Communications (BPLC) network topology is analyzed so as to obtain better performance through channel modeling. The performance of the system by varying the transceiver...
In this paper, the performance of different mathematical sequences used for data aided offset estimation in Multiple Input Multiple Output Orthogonal Frequency Division Multiplexing (MIMO OFDM) is analyzed. If the synchronization system uses multiple preambles, side lobes of preamble can degrade timing synchronization performance and care to be taken to minimize them. The synchronization performance...
Colon cancer is a major cause of cancer in women and colorectal polyps are the important cause to colon cancer. Colonoscopy is one of the best method for detecting the colon cancer Colon endoscopy is a technique in which the image of the intestine can be obtained through the camera attached to endoscope and video sequence is further analysed. Algorithms for the automatic detection of polyps are being...
This paper presents a novel technique for detecting myocardial infarction (MI) from ECG. Today, MI is one of the major causes of death worldwide. MI is a minor stage in lifelong cardiac disease, although rarely noticed, but can lead to sudden death. Since it is the first symptom of coronary artery disease, it is very important to detect MI in an early stage. For this purpose, several methods have...
Wide area network for cellular communications, are implemented by towers. The main advantage of WiMAX is that it supports movement from one place to another. However this WiMAX faces the mismatch in frequency during transmission which in turn leads to inter carrier interference and loss of orthogonality in the carriers used for transmission. Thus CFO estimation and compensation needs to be carried...
Substrate Integrated Waveguide is a hybrid of planar and non-planar structures. It is synthesized using the advantages of non-planar Rectangular waveguide for high power handling capacity, low losses and planar microstrip line for ease of fabrication, low profile and low weight. In this paper, an analysis of Substrate Integrated Waveguide is done by simulating a design in CST Microwave Studio, and...
Filter Bank based Multicarrier (FBMC) system is a multicarrier scheme that has recently gained attention due to its better spectral properties compared to OFDM systems. FBMC system is one among the strong contenders for 5G implementations. While better designs of FBMC systems are evolving with time, it is imperative that the hardware complexity is not overlooked. It is important that filter bank designs...
A Microstrip patch antenna that can be used for Wi-Fi, Bluetooth and WIMAX frequencies, has been proposed in this work. The objective of the work is to design an antenna with multiple resonances at 2.45 GHz, 3.6 GHz and 5.3 GHz and miniaturization of the patch using high dielectric constant. Microwave substrate of size 30mm × 30mm havinga dielectric constant of 10.2 and a loss tangent of 0.002 is...
Entity resolution is the process of identifying the records that refer to the same entity. Rule based ER works by generating rules from the training dataset obtained from the given dataset and applying these rules to the records in the dataset. This method is very time consuming and tedious as the size of the rule set generated is very large. Also, the rules generated are not efficient enough to classify...
Dual Directional Couplers have profound application in RF and microwave instrumentation. This paper presents the design and development aspects of a dual directional coupler operating in the HF band using transformers. The coupler was assembled and tested on a PCB and detailed measurements where taken using Network Analyser. It was successfully integrated into the Power Amplifier Unit of a Software...
Traditional Orthogonal Frequency Division Multiplexing (OFDM) system is a multi carrier transmission technique that splits data stream into a number of data subcarriers in parallel. In this method, a 4-Weighted Fractional Fourier Transform (4-WFRFT) is proposed for modulation / demodulation of the subcarriers. The method uses Maximum Likelihood Estimation (MLE) for Carrier Frequency Offset estimation...
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.