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This paper presents a novel rate control algorithm for H.264/AVC video coding. Pertinent to the algorithm, the paper introduces a joint R-D model, a coding bit estimation approach, a picture complexity measurement, and a model update method. Specifically, the proposed picture complexity measurement employs a harmonic mean based approach to predict the coding complexity of a frame. These techniques...
Rate control in H.264/AVC aims to achieve the best tradeoff between encoding quality and bandwidth while satisfying the buffer restriction. Due to the improving efficiency of intra-only rate control, we propose an effective rate control scheme for intra-only encoding. The proposed scheme employs a novel rate-distortion (RD) model, a new complexity measure, a precise quantization parameter (QP) calculation...
In mobile computing environments, a video encoder should be able to provide high quality of service, which is measured from two perspectives: first, the video quality at a given bit rate must be optimized; second, it should be able to efficiently utilize its power supply to prolong the battery operating time. In other words, it should be able to achieve low power consumption as well as lower video...
The embedded motion compensation model of the new H.264/AVC video coding standard dramatically increases the computational complexity of motion estimation. We propose a fast motion estimation algorithm using a hierarchical motion intensity structure to lower the computational complexity of the motion estimation in H.264/AVC. The proposed algorithm is mainly based on a multi-level motion intensity...
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