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Matrix sensing problems capitalize on the knowledge that a data matrix of interest exhibits low rank properties. This low dimensional structure often arises because the data matrix is obtained by sampling a smooth function on a regular (or structured) grid. However, in many practical situations the measurements are taken on an irregular grid (that is accurately known). This results in an “unstructured...
Watermarking is an interesting technique for message hiding and authentication. We have applied 3- level Haar-DWT and thereafter, DCT transformation on each selected HH3 subband is computed. In extraction the same procedure is used to retrieve watermark logo image from the DCT component of middle frequency subband of selected HH3 subband. To ensure the accuracy and image quality between watermarked...
This paper seeks to achieve an efficient control scheme that can be applied to industrial pick and place robotic manipulators. The mathematical model of this industrial pick and place system is based on the concept of an inverted pendulum on a moving cart whose movement is restricted in horizontal direction. Inverted pendulum systems are often used to model robotic systems. A sliding mode control...
Communication of data in public requires data to be transmitted in robust and secure manner. Also, excessive use of digital data in various fields of life demands a secure system. Various techniques such as cryptography, steganography and watermarking have been established. Among these steganography provides better confidentiality as it is the practice of hiding data within data. In digital media...
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