Category Archive: 'mtech projects in matlab'

Seamless Fundus image stitching using WLD to improve field of view

Digital Fundus images are used for the manifestation of many ocular and systemic diseases but the main problem with fundus cameras is that their captured images have a field of view limited to a maximum of 45 degrees. In order to increase the field view image stitching of the fundus images is required. This paper presents a new technique for stitching multiple fundus images of a […]

A low power multi-frequency current mode lock-in amplifier for impedance sensing

We show the design of a low-power, multi-frequency on-chip current-mode lock-in amplifier for biomedical impedance sensing. This lock-in amplifier obtains the phase and magnitude of the input signals in analog domain and therefore does not require a digital signal processing module. It is composed of translinear bandpass filters, 4-quadrant subthreshold multipliers, translinear low pass filters, translinear pythagorators and dividers. […]

Spatial data infrastructures: Its metadata and analysis

The idea behind the development of spatial data infrastructures is inherently related to the notion of Geographical Information Systems. Nowadays Geographic Information is a key component when it comes to the utilization of natural resources. Geo processing tools, software packages, Global Positioning Systems (GPS), spatial databases provide geographic information or in other words Geo-spatial data With the […]

Results of Tests of Three-Dimensionally Integrated Chips Bonded to Sensors

The VIPIC1 readout integrated circuit was designed for X-ray Photon Correlation Spectroscopy experiments that are typically performed using mono-energetic (8 keV) X-rays at a synchrotron radiation facility. The device is a pixel detector with sparsification and parallel readout from the groups, yielding high timing resolution. Recent improvements in bonding alignment of wafers resulted in deliveries […]

Denoising and Resource Allocation in Uncoded Video Transmission

The recently revitalized uncoded transmission has shown great potential in handling channel variations and user heterogeneities for wireless video communications. In this paper, we propose to adopt motion-compensated temporal filtering (MCTF) at the sender and denoising techniques at the receiver to fully exploit the temporal and spatial redundancy in video signals and therefore significantly improve […]

Median Filtering Forensics Based on Convolutional Neural Networks

Median filtering detection has recently drawn much attention in image editing and image anti-forensic techniques. Current image median filtering forensics algorithms mainly extract features manually. To deal with the challenge of detecting median filtering from small-size and compressed image blocks, by taking into account of the properties of median filtering, we propose a median filtering detection method based on convolutional neural networks (CNNs), […]

Hand gesture recognition using discrete wavelet transform and support vector machine

In this paper a system to recognize static hand gesture is presented. The two dimensional wavelet transform is used for extracting features and the multiclass support vector machine is used for classification. The proposed system has 4 steps: 1) Image acquisition, 2) Image preprocessing, 3) Feature extraction and 4) Classification. The image is captured through digital camera, then converted to gray-scale, cropped and […]

Interactive Visual Profiling of Musicians

Determining similar objects based upon the features of an object of interest is a common task for visual analytics systems. This process is called profiling, if the object of interest is a person with individual attributes. The profiling of musicians similar to a musician of interest with the aid of visual means became an interesting research question […]

Processing of Multiresolution Thermal Hyperspectral and Digital Color Data: Outcome of the 2014 IEEE GRSS Data Fusion Contest

This paper reports the outcomes of the 2014 Data Fusion Contest organized by the Image Analysis and Data Fusion Technical Committee (IADF TC) of the IEEE Geoscience and Remote Sensing Society (IEEE GRSS). As for previous years, the IADF TC organized a data fusion contest aiming at fostering new ideas and solutions for multisource remote sensing studies. […]

Phase Offset Calculation for Airborne InSAR DEM Generation Without Corner Reflectors

Digital elevation model (DEM) generation through interferometric processing of synthetic aperture radar (SAR) data requires the calculation of a constant phase offset present in the unwrapped interferograms. This operation is usually carried out by exploiting the external information provided by GPS measurements in correspondence of corner reflectors (CRs) properly deployed over the illuminated area. This is, however, expensive […]