This article presents a performance analysis of Versatile Video Coding (VVC) intra-frame prediction. VVC is the next generation of video coding standards, which has been developed to supply the demand of upcoming video applications. VVC brings several innovations and enhancements for the intra-frame prediction to improve the encoding efficiency. These improvements comprise larger block sizes, more flexible block partitioning, more angular intra-frame prediction modes, multiple transform selection, non-separable secondary transform, among others. This article provides a detailed description of these tools, discussing how they work together in the intra-frame coding flow to raise the compression performance. Moreover, this article presents encoding complexity, encoding usage distribution, and rate-distortion-complexity analyses of the intra-frame prediction tools over different quantization scenarios. Based on these analyses, this article provides support for future works focusing on VVC intra-frame coding, including complexity reduction, complexity control, and real-time hardware design.

本文介绍了多功能视频编码 (VVC) 帧内预测的性能分析。VVC 是下一代视频编码标准，其开发旨在满足即将到来的视频应用的需求。VVC 为帧内预测带来了多项创新和增强，以提高编码效率。这些改进包括更大的块大小、更灵活的块分区、更多角度的帧内预测模式、多重变换选择、不可分离的二次变换等。本文详细介绍了这些工具，讨论了它们如何在帧内编码流程中协同工作以提高压缩性能。此外，本文介绍了编码复杂度、编码使用分布、帧内预测工具在不同量化场景下的率失真复杂度分析。基于这些分析，本文为未来专注于 VVC 帧内编码的工作提供支持，包括复杂度降低、复杂度控制和实时硬件设计。