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Lecture Notes in Computer Science
Channel bandwidth in 3G communication networks is very much limited for video telephony services. Therefore, it is worthwhile to enhance a subjective quality of video contents via ROI based coding. In this paper, An ROI/xROI based rate-control method is proposed, which considers the coding of both the ROI and the extended ROIs (xROI's) in non-ROI to meet given target bitrates. In the proposed method, the QP values are increasingly assigned in MB wide inside the non-ROI away from ROI. Thisdoi:10.1007/978-3-540-92957-4_88 fatcat:pjhxpuxiojfuhn2nui4tfrd75e