{"content":[{"text":"Signal Processing for Multimedia \n J.S. Byrnes (Ed.) \n IOS Press, 1999","bbox":{"left":0.140523,"top":0.018295,"width":0.221045,"height":0.045720000000000004}},{"text":"Multimedia Signal Processing: \n Past, Present and the Future \n Andrew G. Tescher \n LMT Interactive Technology Center and LMMS Palo Alto Advanced Technology Center \n Lockheed Martin Corporation","bbox":{"left":0.212418,"top":0.094626,"width":0.576373,"height":0.14742}},{"text":"ABSTRACT. Multimedia, as an application, has at its very core the field of signal process- \n ing technology. Although multimedia has leveraged on numerous disciplines, signal proc- \n essing is the most relevant. Some of the basic concepts, such as spectral analysis, sam- \n pling theory and the theory of partial differential equations, have become the fundamental \n building blocks for numerous applications and subsequently have been reinvented in such \n diverse areas as transform coding, display technology and neural networks. The latter, \n most recently, lead to a fast implementation of vector quantization. It is evident that the di- \n verse signal processing algorithms, concepts and applications are interconnected and in \n numerous instances appear in various reincarnated forms (note that, in this instance, rein- \n carnation may not mean immortality, rather ignorance on the part of the reinventor). For \n example, sub-band coding existed for many years before wavelets became fashionable. In \n this paper, an attempt will be made to provide a historical overview of signal processing \n through the present, followed by a highly personal speculation for the future.","bbox":{"left":0.199346,"top":0.270795,"width":0.600344,"height":0.198662}},{"text":"1.","bbox":{"left":0.140523,"top":0.503121,"width":0.014705999999999997,"height":0.02098500000000003}},{"text":"Introduction","bbox":{"left":0.165033,"top":0.503121,"width":0.10676499999999997,"height":0.02098500000000003}},{"text":"The term multimedia represents many different concepts. It includes basic elementary \n components such as different audio types. These basic components may originate from \n many diverse sources. They may come from individuals and they can be synthetically gen- \n erated. For audio, the synthetics may be traditional musical presentation. One may also ar- \n gue that multimedia is based on the extended visual experience, which includes represen- \n tation of the real world as well as its model through a synthetic representation. \n In this chapter, a brief historical perspective is attempted to cover the underlying signal \n processing associated with the multimedia experience. The fundamental difficulty remains \n to define what multimedia is before we can address issues associated with it. \n At one extreme, multimedia is just a label! Conversely, multimedia is a form of human \n experience: it includes not just accurate representation of the real world but also a world \n that does not exist if it was not for the multimedia experience. In a special issue of the \n IEEE Signal Processing Magazine on the topic of this chapter, the contributors spent con- \n siderable effort defining the related signal processing issues without really defining what \n multimedia is. Although this special issue contains several excellent articles, the organizers \n had the same difficulty in defining the basic issues [1]. Regarding multimedia signal proc- \n essing the “points we converged are:","bbox":{"left":0.140523,"top":0.538338,"width":0.721041,"height":0.303048}},{"text":"•","bbox":{"left":0.17647,"top":0.854654,"width":0.00902,"height":0.019742000000000037}},{"text":"There is not much past for multimedia signal processing since not much has been \n done. \n There is a lot going on now… \n There is a bright future for all of us to explore.”","bbox":{"left":0.205882,"top":0.854003,"width":0.654497,"height":0.07324400000000009}},{"text":"• \n •","bbox":{"left":0.17647,"top":0.890009,"width":0.00902,"height":0.03741899999999998}},{"text":"Without really defining what multimedia is, the same article discusses the relevant set of \n labels as defined by the Technical Committee (TC) on Multimedia Signal Processing of the","bbox":{"left":0.140523,"top":0.939864,"width":0.719957,"height":0.03788899999999995}}],"images_bbox":[],"images_bbox_not_text_overlap":[]}