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    • 4. 发明申请
    • ENCODING FILTER COEFFICIENTS
    • 编码过滤器系数
    • WO2009087095A1
    • 2009-07-16
    • PCT/EP2009/000065
    • 2009-01-08
    • TELEFONAKTIEBOLAGET LM ERICSSON (publ)ANDERSSON, KennethFRÖJDH, PerPRIDDLE, ClintonSAMUELSSON, JonatanSJÖBERG, Rickard
    • ANDERSSON, KennethFRÖJDH, PerPRIDDLE, ClintonSAMUELSSON, JonatanSJÖBERG, Rickard
    • H04N7/26
    • H04N19/82H04N19/117H04N19/136H04N19/176H04N19/463H04N19/61H04N19/70
    • A method of encoding a plurality of adaptive filter coefficients (104, 107, 112) into a bitstream (110). The method comprises the steps of entropy encoding (109) the adaptive filter coefficients (104, 107, 112) into the bitstream (110), whereby a prediction (202) for an instance (204) of the adaptive filter coefficients is determined (201 ) based on at least one of the remaining adaptive filter coefficients (206), a prediction error (205) is determined (203) based on the difference between the instance (204) of the adaptive filter coefficients and the prediction (202), and wherein the step of entropy encoding (109) the plurality of adaptive filter coefficients (104, 107, 112) comprises entropy encoding (109) the prediction error (205) for the instance (204) of the adaptive filter coefficients and entropy encoding (109) the remaining adaptive filter coefficients (206). Further is provided a corresponding method of decoding a bitstream (110) of encoded adaptive filter coefficients into decoded adaptive filter coefficients (116, 118, 120, 123).
    • 一种将多个自适应滤波器系数(104,107,112)编码为比特流(110)的方法。 该方法包括以下步骤:将自适应滤波器系数(104,107,112)熵编码(109)到比特流(110)中,由此确定自适应滤波器系数的实例(204)的预测(202)(201 )基于所述剩余自适应滤波器系数(206)中的至少一个,基于所述自适应滤波器系数的实例(204)与所述预测(202)之间的差确定(203)预测误差(205),以及 其中所述多个自适应滤波器系数(104,107,112)的熵编码(109)的步骤包括对所述自适应滤波器系数和熵编码(109)的实例(204)进行熵编码(109)所述预测误差(205) )剩余的自适应滤波器系数(206)。 还提供了将经编码的自适应滤波器系数的比特流(110)解码为解码的自适应滤波器系数(116,118,120,123)的相应方法。
    • 5. 发明申请
    • MEDIA CONTENT MANAGEMENT
    • 媒体内容管理
    • WO2007078227A1
    • 2007-07-12
    • PCT/SE2006/001366
    • 2006-11-29
    • TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)TALEB, AnisseFRÖJDH, Per
    • TALEB, AnisseFRÖJDH, Per
    • H04N7/52
    • H04N21/4341H04N21/2335H04N21/234327H04N21/23439H04N21/2368H04N21/2385H04N21/2402H04N21/2662H04N21/85406
    • The invention involves collective management of video (30) and audio (40) content in a content provider (100). The video (30) and audio (40) content is available in multiple potential versions (32, 34, 36; 42, 44, 46), e.g. in the form of scalable media (36, 46) or media (32, 34; 42, 44) pre-encoded to fixed bandwidth levels. The video (30) and audio (40) data is associated with bandwidth share information (62, 64, 66) enabling estimation of a respective apportionment of a total available bandwidth to the video (30) and audio (40) content. The provider (100) uses this share information (62, 64, 66) and information of the total assignable bandwidth level for providing a respective video version (32, 34, 36) and audio version (42, 44, 46) from the multiple potential versions (32, 34, 36, 42, 44, 46). This allows for increased user-quality when rendering the video (30) and audio (40) data as optimal video (32, 34, 36) and audio (42, 44, 46) version can be dynamically provided during the media session.
    • 本发明涉及对内容提供商(100)中的视频(30)和音频(40)内容的集体管理。 视频(30)和音频(40)内容可在多个潜在版本(32,34,36; 42,44,46)中获得,例如, 以预编码到固定带宽水平的可伸缩媒体(36,46)或媒体(32,34; 42,44)的形式。 视频(30)和音频(40)数据与带宽共享信息(62,64,66)相关联,使得能够估计对视频(30)和音频(40)内容的总可用带宽的相应分配。 提供者(100)使用该共享信息(62,64,66)和总可分配带宽级别的信息,以从多个网络提供相应的视频版本(32,34,36)和音频版本(42,44,46) 潜在版本(32,34,36,42,44,46)。 这可以在将视频(30)和音频(40)数据呈现为最佳视频(32,34,36)时提高用户质量,并且可以在媒体会话期间动态地提供音频(42,44,46)版本。
    • 10. 发明申请
    • DEPTH AND VIDEO CO-PROCESSING
    • 深度和视频协同处理
    • WO2010087751A1
    • 2010-08-05
    • PCT/SE2009/050495
    • 2009-05-07
    • Telefonaktiebolaget LM Ericsson (publ)RADULOVIC, IvanaFRÖJDH, PerPRIDDLE, Clinton
    • RADULOVIC, IvanaFRÖJDH, PerPRIDDLE, Clinton
    • H04N13/02
    • H04N13/128H04N13/111H04N13/243H04N2213/003
    • 18 ABSTRACT Co-processing of a video frame (32) and its associated depth map (34) suitable for free viewpoint television involves detecting respective edges (70, 71, 80, 81) in the video frame (32) and the depth map (34). The edges (70, 71, 80, 81) are aligned and used to identify any pixels (90-92) in the depth map (34) or the video frame (32) having incorrect depth values or color values based on the positions of the pixels in the depth map (34)or the video frame (32) relative an edge (80) in 5 the depth map (34) and a corresponding, aligned edge (70) in the video frame (32). The depth values or color values of the identified pixels (90-92) can then be corrected in order to improve the accuracy ofthe depth map (32) or video frame (34). (Fig. 3)10
    • 18摘要适用于自由观点电视的视频帧(32)及其相关联的深度图(34)的协处理涉及检测视频帧(32)和深度图(32)中的相应边缘(70,71,80,81) 34)。 边缘(70,71,80,81)对准并用于识别深度图(34)中的任何像素(90-92)或具有不正确的深度值或颜色值的视频帧(32),基于位置 深度图(34)中的像素或视频帧(32)相对于深度图(34)中的边缘(80)和视频帧(32)中的对应的对准边缘(70)。 然后可以校正所识别的像素(90-92)的深度值或颜色值,以便提高深度图(32)或视频帧(34)的精度。 (图3)10