Consumer Electronics (CE) devices have started to support 360° videos in order to improve the perceived video quality by consumers. Higher compression in 360° videos not only lead to improved consumer perception, but also efficient energy and storage usage in CE devices. Consequently, efficient compression of such video content is becoming a critical design consideration of CE devices. To this end, this paper first proposes a residual weighting algorithm that utilizes the features of Weighted Craster Parabolic Projection Peak Signal-to-Noise Ratio (WCPPPSNR), to instigate the first stage of magnitude reduction of the residuals. The model parameters associated with the residual weighting algorithm are determined in the initial experimental stage. Next, the paper proposes a Quantization Parameter (QP) optimization technique which introduces the second stage of magnitude reduction for residuals with minimal impact on the overall video quality. The proposed method is tested on the Versatile Video Coding (VVC) test model with All-Intra configuration. In this context, the empirical results demonstrate that the proposed method improves the coding efficiency by 3.34% on average and outperforms the state-of-the-art techniques.

中文翻译：

---

360∘视频多功能视频编码中的多量化参数优化

消费电子 (CE) 设备已开始支持 360° 视频，以提高消费者感知的视频质量。360° 视频的更高压缩率不仅可以改善消费者感知，还可以提高消费电子设备的能源和存储使用效率。因此，此类视频内容的有效压缩正成为 CE 设备的关键设计考虑因素。为此，本文首先提出了一种残差加权算法，该算法利用加权 Craster 抛物线投影峰值信噪比 (WCPPPSNR) 的特征，促使残差幅度降低的第一阶段。与残差加权算法相关的模型参数在初始实验阶段确定。下一个，该论文提出了一种量化参数 (QP) 优化技术，该技术引入了残差幅度降低的第二阶段，对整体视频质量的影响最小。所提出的方法在具有全帧内配置的多功能视频编码 (VVC) 测试模型上进行了测试。在这种情况下，实证结果表明，所提出的方法将编码效率平均提高了 3.34%，并且优于最先进的技术。