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Augmented reality is a technique which adds computer generated virtual objects into the real world scene. ARTAR proposes a method to enhance the experience of paintings or artistic works by adding an extra level of perception through the inclusion of sound, music, and animations. It contains two layers of perception, the physical appearance of the paintings perceived by naked eye and an augmented...
Image retrieval techniques finds very useful in content management systems. Content Based Image Retrieval (CBIR) methods incorporates specific image features such as colors, textures, keypoints etc., for retrieving similar images from databases. Most of the keypoint detectors and keypoint descriptors uses only grayscale information. The retrieval accuracy of these methods can be improved by adding...
This paper proposes a hybrid approach to compression. It incorporates lossy as well as lossless compression. Various parts of image are compressed in either way, depending on the amount of information held in that part. This scheme consists of two stages. In the first stage the image is filtered by a high pass filter to find the areas that have details. In the second stage, an effective scheme based...
In this study we propose a new system to detect and correct red eye defect in images. The proposed system works in three phases namely face localization, eye localization and red eye removal. Face localization involves method for extracting face from the image. Eye localization locates eye in the face extracted. The red eye defect, if present, is automatically detected and corrected using a simple...
This paper introduces a new method for data clustering.This method is proposed to divide data into clusters or regions. Different regions or clusters, which are used to calculate code words, have been designed by using the line of symmetry approach. This line of symmetry is rotated by a predefined angle to divide the complete data set into small clusters. These codewords are then used to represent...
In this paper, we have shown that recognition of machine printed characters can be modeled around the geometry of an alphabet. This geometry is used as a basis for recognizing various characters. The present technique can be implemented for any language, provided, the alphabets of the respective language are made up of geometrical shapes, which is typically true.
In this paper, the effects of shorting pin on resonant frequency of the gap-coupled circular microstrip patch antennas is presented. The effects of location of shorting pin and variations of its diameter as well as the effect of variation of gap distance between adjacent edges of the feed patch and parasitic patch of gap-coupled circular microstrip patch antennas on the resonant frequency is simulated...
In this paper we discuss the method of designing a Chebyshev non recursive filter with linear phase for processing Images. Through this approach we design filters for the applications where stop band to pass band ration is important.
A new very simple design approach to Linear Phase Finite Impulse Response (FIR) filters is discussed with the help of Legendre Polynomials with a special transform. This approach can be used to design a FIR filter with arbitrary characteristics and exact linear phase. Some design examples are discussed to illustrate the performance of the proposed method.
In this paper a survey of the gap-coupled microstrip antennas is presented. The need and types of gap-coupled microstrip antennas with recent research overview is discussed. By using the concept of gap-coupling the bandwidth of microstrip antenna can be increased. In this one patch is fed and the parasitic patch is excited by the gap-coupling. The concept of increasing the bandwidth by gap-coupling...
In this article, we are presenting an innovative design of cross patch antenna on the substrate with ground plane partially removed. The antenna is fed by a microstrip line and yields an omnidirectional pattern. Two antennas with different dimensions are presented. Optimization of design leads to a bandwidth of 28% with sufficient directivity. The proposed antennas can be used for wideband communication...
In this paper, we report the results of an investigation of multimode, planar dielectric waveguides for integrated circuit application at millimeter wavelengths. Two multimode devices have been fabricated and tested using the inverted strip guide (ISG), and a comparison between the theoretical and experimental results is given.
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