会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 9. 发明申请
    • METHOD AND APPARATUS FOR TRANSMITTING ENCODED VIDEO DATA, AND METHOD AND APPARATUS FOR DECODING VIDEO DATA
    • 用于发送编码的视频数据的方法和装置,以及用于解码视频数据的方法和装置
    • WO2006134110A1
    • 2006-12-21
    • PCT/EP2006/063158
    • 2006-06-13
    • THOMSON LICENSINGCHEN, YingZHAI, JiefuXIE, Kai
    • CHEN, YingZHAI, JiefuXIE, Kai
    • H04N7/64H04N7/26
    • H04N21/2662H04N19/33H04N19/44H04N19/59H04N19/70H04N19/895H04N21/234327H04N21/4402H04N21/440245H04N21/44209H04N21/631H04N21/6375H04N21/6377H04N21/6405H04N21/6408H04N21/6437H04N21/658H04N21/8451
    • H.264 (AVC) uses a network abstraction layer (NAL) to process and format encoded video data into packets (NALUs), which may be mapped to transport packets for transmission. For scalable video, a NALU contains either control information (SEI, SPS, SPS_S, PPS, PPS_S), reference picture video data (IDR, IDR_S), base-layer video data (BL) or enhancement-layer video data (EL). To enable the decoding even if transport packets are lost, and thus achieve SNR scalability, video data packets of non-IDR pictures get a sequence number. A method for decoding such packetized video data comprises the steps of buffering the transport packets, extracting transport packet sequence numbers and the received video data packets, storing the video data packets containing control data (SEI, SPS, SPS_S, PPS_H, PPS_L, PPS­_S­_H, PPS_S_L), determining the application packet number (CN) of a missing or defective transport packet containing EL picture data (EL#1, EL#2, ...), determining and upsampling the corresponding base-layer picture, generating a new packet with default header and upsampled base-layer picture data, and decoding the buffered picture data.
    • H.264(AVC)使用网络抽象层(NAL)来将编码的视频数据处理并格式化成分组(NALU),其可被映射到传输分组以进行传输。 对于可伸缩视频,NALU包含控制信息(SEI,SPS,SPS_S,PPS,PPS_S),参考图像视频数据(IDR,IDR_S),基本层视频数据(BL)或增强层视频数据(EL)。 即使传输分组丢失也能解码,从而实现SNR可伸缩性,非IDR图像的视频数据分组获得序列号。 一种用于解码分组视频数据的方法包括以下步骤:缓存传输分组,提取传输分组序列号和接收到的视频数据分组,存储包含控制数据(SEI,SPS,SPS_S,PPS_H,PPS_L,PPS_S_H, PPS_S_L),确定包含EL图像数据(EL#1,EL#2,...)的丢失或缺陷传输分组的应用分组数(CN),确定和上采样相应的基层图像,生成新分组 具有默认标题和上采样的基层图像数据,并对缓冲的图像数据进行解码。