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Wir sind gerne für Sie daA color time-varying image can be described as a three-dimensional vector (representing the colors in an appropriate color space) defined on a three-dimensional spatiotemporal space. In conventional analog television a one-dimensional signal suitable for transmission over a communication channel is obtained by sampling the scene in the vertical and tem poral directions and by frequency-multiplexing the luminance and chrominance informa tion. In digital processing and transmission systems, sampling is applied in the horizontal direction, too, on a signal which has been already scanned in the vertical and temporal directions or directly in three dimensions when using some solid-state sensor. As a conse quence, in recent years it has been considered quite natural to assess the potential advan tages arising from an entire multidimensional approach to the processing of video signals. As a simple but significant example, a composite color video signal, such as the conven tional PAL or NTSC signal, possesses a three-dimensional spectrum which, by using suitable three-dimensional filters, permits horizontal sampling at a rate which is less than that re quired for correctly sampling the equivalent one-dimensional signal. More recently it has been widely recognized that the improvement of the picture quality in current and advanced television systems requires well-chosen signal processing algorithms which are multidimen sional in nature within the demanding constraints of a real-time implementation.
Produkteigenschaften
- Artikelnummer: 9780792392286
- Medium: Buch
- ISBN: 978-0-7923-9228-6
- Verlag: Springer Us
- Erscheinungstermin: 31.05.1992
- Sprache(n): Englisch
- Auflage: Nachdrucked from MULTIDIMENSIONAL SYSTEMS AND SIGNAL PROCESSING, 3:2/3, 1992
- Serie: The Springer International Series in Engineering and Computer Science
- Produktform: Gebunden
- Gewicht: 485 g
- Seiten: 189
- Format (B x H x T): 154 x 225 x 17 mm
- Ausgabetyp: Kein, Unbekannt