Firstly I will explain what is signal ,signal processing ,analogue viruses digital signal types of signal processing their advantages and disadvantages and their comparison .I-e which one is better …….why analog signal processing (ASP) is replaced with digital signal processing (DSP). What is Signal??? Any physical quantity that varies with time or any other independent variable is called signal. What is signal processing??? Signal processing is concerned with the improvement of quality of a signal
are speech, text, image and video. For example, if anybody can share some information, then the information is not same during the entire communication period rather it varies with time. Another example is that if communication are happened in any lecture room without any amplifying device, the signal strength can vary for the listener who located near the speaker from the listener who far away from the speaker. Hence, technically we define the
Abstract this paper explains about image compression review using DWT (Discrete Wavelet Transform) and DLT (Discrete Cosine Transform) method, the compression in the image must be closely related to the use of memory and the transmission of digital images. The wavelet transform decomposes the image into shape. For display and graphical display with DCT and DWT. DWT is used for compression application. Wavelet transform divides the information of an image into approximation and details sub-signals
Content 9.1 Introduction 9.2 Objective 9.3 Future Technological Trends 9.3.1 Pervasive Networking 9.3.2 Integration of Voice, Video and Data 9.3.3 New Information Services 9.4 Communication Trends 9.5 Digital Trends 9.6 Summing Up 9.7Model Examination Questions 9.8 Suggested Readings 9.1 Introduction There is a wide growth in Data Communication Systems. Many new technologies are developing to improve the functioning of organizations. Digitization, automation
been proposed to identifying the crop diseases, but the accuracy is considered to be issue over all the researches performed so far. In proposed system, the image is taken, preprocessing the image. The preprocessed image is subjected to K means clustering to get infected part of the leaf. The infected part is subjected to morphological processing to expanding the infected area. The infected part of leaf is subjected to histogram of oriented gradient (HOG) algorithm to extracted the features.SVM classifier
Studies) 2. Repercussions of Acoustics – (MIDI and Digital which is used and its purpose) From a more technical standpoint, there are more
CHAPTER 1 INTRODUCTION An image is an artifact that records visual perception, for instance a two-dimensional image, which has a similar look to some subject—usually a physical object or a person. Images may be two-dimensional, like screen show, photographs or it can also be three dimensional, such as hologram or sculpture. Images will be captured by optical devices like cameras. A digital image is essentially a collection of pixel values arranged in rows and columns. Each pixel consists of 8 bits
than the normal videos. 6. DISADVANTAGES OF AUGMENTED REALITY With so many advantages, augmented reality also have some flaws existing in it. Some of the concerns are: Lack of privacy. Augmented reality systems are costly and difficult to maintain. Spamming Physical danger Unauthorized augmented advertising 7. APPLICATION OF AUGMENTED REALITY 7.1 Medical Augmented reality is gradually being used for more practical purposes apart from providing entertaining digital content to the users of
CHAPTER -1 INTRODUCTION The outbreak of digital image processing in 1920’s has revolutionalised the communication process [l]. The images were the first language used by the humans for interaction. The images in the form of pictures were carved on stone which became the first language for communication and these carvings were available for the future generation. With the technical advancements in recent times; image processing techniques has became an important part of the communication system. From
An optimal realization of heterodyne receiver for SFCW UWB radar system Damodar V Kadaba1, SA Subhan1, VK Bansal1, Subhadra Singh1, Gowtham G2 1 Central Research Lab, BEL, Bangalore – 560013, 2D&E (Military Radar), BEL, Bangalore-560013 Abstract Realization of a heterodyne receiver for step frequency continuous wave (SFCW) through wall radar (TWR) is discussed in this paper. As the Doppler bandwidth of signals reflected from slow moving objects such as human beings illuminated by SFCW TWR sensor