Image and Videl Comoression P4

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Image and Videl Comoression P4

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As introduced in the previous chapter, differential coding achieves high coding efficiency by utilizing the correlation between pixels existing in image frames. Transform coding (TC), the focus of this chapter, is another efficient coding scheme based on utilization of interpixel correlation. As we will see in Chapter 7, TC has become a fundamental technique recommended by the international still image coding standard, JPEG. Moreover, TC has been found to be efficient in coding prediction error in motion-compensated predictive coding. As a result, TC was also adopted by the international video coding standards such as H.261, H.263, and MPEG 1, 2,...

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