Archive > Volume 14 Issue 5 > 2018,14(5):384-390. DOI:https://doi.org/10.1007/s11801-018-7190-2 CSTR:[cstr] Prev Next
Scaling-based energy-quality multilevel control for aerial imagery
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Abstract:
This paper designs an energy-quality multilevel framework for the coding and transmission of aerial images, and then introduces a scaling-based intra encoder with flexible sampling factor (SF) and quantization parameter (QP). By experimentally investigating how different coding configurations affect the complexity-rate-quality characteristics of aerial images, this paper derives a configuration estimation model between energy-quality level and appropriate (SF, QP) configuration. By utilizing the model, a bivariate control scheme is proposed so as to progressively adjust sender's energy consumption under quality constraints. The experimental results show that the proposed scheme can achieve better energy-quality tradeoff with a wider quality range, and reduce the energy consumption above a certain quality.
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