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There are demands for uninterrupted delivery of increasingly higher quality videos over the Internet from users, while video transcoding stage is a long time and resources consume processing. Cloud computing offers the power to supply on-demand resources dynamically. In this paper, we proposed a video encoding infrastructure and a rate control scheme to improve the coding efficiency on cloud environments...
Rate control plays a crucial role for video communication applications. It ensures that the generated compressed bit streams satisfy bandwidth and buffer constraints. Rate control algorithms recommended by H.264/AVC adopt rate-distortion (R-D) models for inter-frames to determine quantization parameters (QPs) but not for intra-frames. Instead, they directly compute QPs without any considerations of...
Rate control regulates the output bit rate of a video encoder in order to obtain optimum visual quality within the available network bandwidth and to maintain buffer fullness within a specified tolerance range. In this paper, we propose a novel rate control scheme for H.264/AVC video compression with a number of new features. We first introduce a calculation approach of frame complexity based on the...
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