美利体育登录入口官网:ETSI TR 126 948-2017
数字蜂窝通信系统(第2+阶段)(GSM全球移动通信系统);通用移动通信系统(UMTS);长期演进技术(LTE); 第三代移动通信合作伙伴项目(3GPP)多媒体服务中的视频增强的研究(V14.0.0;3GPP TR 26.948版本14.0.0 发行版本14)
Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; Study on video enhancements in 3GPP multimedia services (V14.0.0; 3GPP TR 26.948 version 14.0.0 Release 14)
2018-07
- 标准号
- ETSI TR 126 948-2017
- 发布
- 2017年
- 总页数
- 63页
- 发布单位
- 欧洲电信标准协会
- 替代标准
- ETSI TR 126 948-2018
- 当前最新
- ETSI TR 126 948-2024
- 引用标准
- 3GPP TR 21.905 3GPP TS 26.140 3GPP TS 26.141 3GPP TS 26.234 3GPP TS 26.346 ITU-R BT.2020 ITU-R BT.709 ITU-T H.263 ITU-T H.264 ITU-T H.265
- 本体
- 多媒体广播/多播服务
- 适用范围
- The present document reports the study on video enhancements in 3GPP multimedia services. It firstly provides an overview of the video codecs and their configurations specified for existing 3GPP multimedia services, namely 3GP-DASH (TS 26.247 [1]), PSS (TS 26.234 [2]), MBMS (TS 26.346 [3]), MTSI (TS 26.114 [4], including multi-stream multiparty video conferencing), MMS (TS 26.140 [5]), and IMS Messaging and Presence (TS 26.141 [6]). Then use cases on video enhancements for existing 3GPP multimedia services are discussed, including a discussion on potential codec solutions for each of the use cases. To enable drawing conclusions, simulation conditions and simulation results for comparisons of different codecs and their configurations are provided. Performance is evaluated in typical 3GPP service environments taking into account bandwidth, quality and complexity. Based on the performance results, conclusions are made in terms of recommendations for support of enhanced video capabilities for 3GPP multimedia services.
| 术语 | 描述 |
|---|---|
| 3D-HEVC 3D-HEVC | 三维高效视频编码 |
| 3GPP 3rd Generation Partnership Project | 第三代合作伙伴计划 |
| API API | 应用程序接口 |
| AU Access Unit | 访问单元 |
| AVC Advanced Video Coding | 高级视频编码 |
| BL Base Layer | 基本层 |
| BD Bjontegaard Delta | Bjontegaard 差异（用于比较编码效率的指标） |
| BP Bitstream Partition | 码流分区 |
| CABAC Context Adaptive Binary Arithmetic Coding | 上下文自适应二进制算术编码 |
| CPB Coded Picture Buffer | 编码帧缓冲器 |
| CRA Clean Random Access | 清洁随机接入 |
| CTU Coding Tree Unit | 编码树单元 |
| DASH Dynamic Adaptive Streaming over HTTP | 基于HTTP的动态自适应流媒体 |
| DPB Decoded Picture Buffer | 解码帧缓冲器 |
| EL Enhancement Layer | 增强层 |
| GOP Group of Pictures | 图像组 |
| HEVC High Efficiency Video Coding | 高效视频编码 |
| HRD Hypothetical Reference Decoder | 假设参考解码器 |
| IDR Instantaneous Decoding Refresh | 瞬时解码刷新 |
| IMS IP Multimedia Subsystem | IP多媒体子系统 |
| ILP Inter-Layer Prediction | 层间预测 |
| IRAP Intra Random Access Point | 帧内随机接入点 |
| MBMS Multimedia Broadcast/Multicast Service | 多媒体广播/多播服务 |
| MMVC Multi-stream Multiparty Video Conferencing | 多流多方视频会议 |
| MTSI Multimedia Telephony Service for IMS | IP多媒体子系统中的多媒体电话服务 |
| NAL Network Abstraction Layer | 网络抽象层 |
| PTL Profile, Tier, and Level | 配置文件、等级和级别 |
| SHVC Scalable High efficiency Video Coding | 可扩展高效视频编码 |
| SVC Scalable Video Coding | 可扩展视频编码 |
美利体育登录入口官网: ETSI TR 126 948-2017 中提到的仪器美利体育官网首页网址
| 参考软件 SHM9.0 | 用于SHVC编码和解码仿真的参考软件实现 |
| 媒体感知网络元素 MANE | 用于处理视频流的网络元素，如移除增强层 |
| 智能手机 配备ARMv7处理器（1.3GHz） | 用于测试HEVC实时软件解码和显示的美利体育官网首页网址示例 |