We consider the problem of embedding one signal (e.g., a digital watermark), within another "host" signal to form a third, "composite" signal. The embedding is designed to achieve efficient tradeoffs among the three conflicting goals of maximizing information-embedding rate

Abstract. This paper is motivated by the need for fundamental understanding of ultimate limits of bandwidth efficient delivery of higher bit-rates in digital wireless communications and to also begin to look into how these limits might be approached. We examine exploitation of multi-element array

. It can be used to produce solid textures for creating textured 3-d objects without the distortions inherent in texture mapping. It can also be used to synthesize texture mixtures, images that look a bit like each of several digitized samples. The approach is based on a model of human texture perception

allocation by offering an opportunity for loops to negotiate the best use of power and frequency with each other. When applied to the upstream power backoff problem in very-high bit-rate digital subscriber lines and the downstream spectral compatibility problem in asymmetric digital subscriber lines, the new

Abstract—Analog-to-digital converters (ADC’s) are ubiquitous, critical components of software radio and other signal processing systems. This paper surveys the state-of-the-art of ADC’s, including experimental converters and commercially available parts. The distribution of resolution versus

MyLifeBits is a project to fulfill the Memex vision first posited by Vannevar Bush in 1945. It is a system for storing all of one's digital media, including documents, images, sounds, and videos.

the periodontal ligament for 4e8 h. d. The root of an avulsed tooth should not be wiped clean of gross contaminants because this may damage the periodontal ligament. QUESTION 2 Which of the following are true regarding amputations of digits? a. Finger tip amputations with a wound area less than 10 mm2 typically

This paper discusses the feasibility of coding a robust, undetectable, digital water mark on a standard 512*512 intensity image with an 8 bit gray scale. The watermark is capable of carrying such information as authentication or authorisation codes, or a legend essential for image interpretation

Abstract. Secure and authenticated message delivery/storage is one of the major aims of computer and communication security research. The current standard method to achieve this aim is “(digital) signature followed by encryption”. In this paper, we address a question on the cost of secure

We present a new efficient paradigm for signing digital streams. The problem of signing digital streams to prove their authenticity is substantially different from the problem of signing regular messages. Traditional signature schemes are message oriented and require the receiver to process