We introduce a foveation-based error resilience scheme for low bit rate visual communications over highly error-prone mobile networks. In order to alleviate the degradation of visual quality due to signal fading attenuation, it is necessary to develop more robust error resilience schemes. By maintaining relatively high source throughput for perceptually important regions, the visual quality degradation can be effectively reduced. We spatially divide each frame into foveated and background layers according to perceptual importance. Two bitstreams are generated from the layers and transmitted using an unequal error protection scheme. In the simulation, the visual quality is significantly increased up to 3 dB FPSNR (foveal peak signal to noise ratio) at 40% packet error rate.
展开▼
机译：我们针对容易出错的移动网络上的低比特率视觉通信引入了基于偏见的错误复原方案。为了减轻由于信号衰落衰减而导致的视觉质量的下降，有必要开发更鲁棒的错误恢复方案。通过在感知上重要的区域保持较高的源吞吐量，可以有效地减少视觉质量下降。根据感知的重要性，我们将每个帧在空间上分为凹入的和背景层。从层生成两个比特流，并使用不相等的错误保护方案进行传输。在仿真中，以40％的包错误率将视觉质量显着提高至3 dB FPSNR（中央峰值信噪比）。
展开▼
