This work relates to the regions-of-interest (ROI) coding that is a desirable feature in future applications based on the scalable video\r\ncoding, which is an extension of the H.264/MPEG-4 AVC standard. Due to the dramatic technological progress, there is a plurality\r\nof heterogeneous devices, which can be used for viewing a variety of video content. Devices such as smartphones and tablets\r\nare mostly resource-limited devices, which make it difficult to display high-quality content. Usually, the displayed video content\r\ncontains one or more ROI(s), which should be adaptively selected from the preencoded scalable video bitstream.Thus, an efficient\r\nscalable ROI video coding scheme is proposed in this work, thereby enabling the extraction of the desired regions-of-interest and\r\nthe adaptive setting of the desirable ROI location, size, and resolution. In addition, an adaptive bit-rate control is provided for the\r\nregion-of-interest scalable video coding.Theperformance of the presented techniques is demonstrated and compared with the joint\r\nscalable video model reference software (JSVM 9.19), thereby showing significant bit-rate savings as a tradeoff for the relatively low\r\nPSNR degradation.
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