• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Electronics and Communications in Japan. Part 3, Fundamental Electronic Science >Temporal Scalable Video Coding with Hierarchical Reference Picture Selection Method
【24h】

Temporal Scalable Video Coding with Hierarchical Reference Picture Selection Method

机译：分级参考图片选择方法的时间可伸缩视频编码

获取原文
获取原文并翻译 | 示例
       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Temporal scalable coding includes a function of extracting coded data with various frame rates from the original coded data. By using this function, the time resolution can be adjusted according to the processing power of the terminal and the transmission rate, so that best-effort video quality matched to the receiving environment is provided. In conventional temporal scalable coding, the frame in the same layer or the next lower layer closest in time to the frame to be encoded is selected as the reference picture. The problem then arises that the prediction efficiency is low. In the reference picture selection method, on the other hand, a reference picture memory for multiple frames is prepared, and a reference picture is selected for the encoding for each block. Thus, the prediction efficiency is improved. However, unless the layer structure is introduced into the reference picture selection method, the problem of reference picture mismatch arises due to the decimation of the encoded data, which prevents the realization of a temporal scalable function. This paper proposes the hierarchical reference picture selection (HRPS) method, in which the reference picture selection method is applied while solving the mismatch problem. In HRPS, the reference picture memory is managed as a hierarchical structure and the reference picture selection method can be applied to each layer. This improves the coding efficiency of each layer. A procedure for assigning the reference picture memory capacity for each layer in HRPS is also proposed.
机译：时间可伸缩编码包括从原始编码数据中提取具有各种帧速率的编码数据的功能。通过使用此功能，可以根据终端的处理能力和传输速率来调整时间分辨率，从而提供与接收环境相匹配的尽力而为的视频质量。在常规的时间可伸缩编码中，在时间上最接近要编码的帧的相同层或下一个下层中的帧被选择为参考图片。然后出现预测效率低的问题。另一方面，在参考图片选择方法中，准备了用于多个帧的参考图片存储器，并且为每个块选择用于编码的参考图片。因此，提高了预测效率。然而，除非将层结构引入参考图片选择方法中，否则由于编码数据的抽取而出现参考图片不匹配的问题，这妨碍了时间可伸缩功能的实现。本文提出了一种分层参考图片选择（HRPS）方法，在解决不匹配问题的同时应用了参考图片选择方法。在HRPS中，参考图片存储器被管理为分层结构，并且参考图片选择方法可以被应用于每个层。这提高了每一层的编码效率。还提出了在HRPS中为每一层分配参考图片存储容量的过程。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号