Quantization

High-dimensional data Data that requires more than two or three dimensions to represent can be difficult to interpret. One approach to simplification is to assume that the data of interest lie on an embedded non-linear manifold within the higher-dimensional space. If the manifold is of low enough dimension, the data can be visualised in the low-dimensional space. Abstract— Dimensionality Reduction is a key issue in many scientific problems, in which data is originally given by high dimensional

Spectral Band Replication (SBR) is a novel audio spectrum recovery technology, it can greatly improve the efficiency of perceptual audio coding compression, and thus more suitable for streaming media applications with limited bandwidth. It will be widely used in the world of digital broadcasting, the third generation mobile communications, multimedia downloads, video-on-demand and other services. SBR use parametric coding technique that involves complex algorithms; simply take a long time by the

Abstract This paper is about a selected few image processing applications. Optical Character Recognition is the translation of images of handwritten, typewritten or printed text into machine-editable text. Then I have introduced the captcha that we so frequently encounter in common websites. An algorithm trying to solve or break a captcha has been explained. Face detection is a growing and an important tool in security these days. It must be applied before face recognition. There are many

of face recognition system with a combination of Neural networks withSub-space method of feature extraction. Here we are considering both single layer such as Generalized Regression neural network (GRNN) and Multi layer such as Learning Vector quantization (LVQ). The analysis of these neural networks are done between feature vectors with respect to the recognition performance of subspace methods, namely Principal Component Analysis (PCA) and Fisher Linear Discriminant Analysis (FLDA).Subspace is

AN EFFICIENT DATA CONCEALMENT APPROACH BASED ON PIXEL PAIR MATCHING AND ENCRYPTION TECHNIQUE Abstract - This paper proposes a data hiding method using adaptive pixel pair matching and data encryption approach for secret data communication. Steganography is the science of hiding secret data in plain sight within cover data so that it can be securely transmitted over a network. The idea of PPM is to use the values of pixel pair as a reference coordinate, and search a coordinate in the neighborhood

[6] and Hough transform. They used range of temperature in ROI, the mean temperature, standard deviation and quantization of the higher tone in an eight level posterization. These features were extracted from the entire breast image and breast quadrants. Support vector machine classifier gave an accuracy of classification around 86%. The method has compared the entire

Synthetic Aperture Radar (SAR) as an effective tool for Oil Spill Analysis ——————————————————————————————————————— Naveen Sankaran Abstract Marine oil pollution, caused by discharges from ships, and leakages from oil platforms and oil-tanker accidents, is a major threat to fragile marine and coastal ecosystems and it is a subject of increasing public concern. Airborne and space-borne radars are used as an effective option for operational oil spill detection. Remote sensing in microwave band has

Image Compression Using Hybrid SVD-WDR and SVD-ASWDR: A comparative analysis Kanchan Bala (Research Scholar) Computer Science andEngineering Dept. Punjab Technical University Jalandhar, India kanchukashyap@gmail.com Er. Deepinder Kaur (Assistant professor) Computer Science and Engineering Dept. Punjab Technical University Jalandhar, India deepinderkaur.bhullar@gmail.com Abstract---In this paper new image compression techniques are presented by using existing techniques such as Singular value

Our current aim is to make more "green" industries by searching for ways to make better yields and little to no waste at all. One of the major blocks scientists have run into is the reactivity of cabon-hydrogen bonds, which is needed to form new molecules. In order for these bonds to work, carbon-hydrogen bonds need to be served. Previously, this has required dangerous reagents, and little was yielded when the reaction was over. Now, there are different ways to achieve this goal. If the right catalyst

histogram would increase as the peak value of this histogram could decrease. By applying the re-normalized histogram as features, the experimental results show that the proposed method has the ability to detect a wide range of tamper operations, including single type and multiple types of tampering operations without the prior knowledge of tampering operation order, type and parameter. [24] Vinayak S. Dhole (2015) et al present that FW is discovered for authentication and content integrity verification