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    • 2. 发明申请
    • METHOD FOR ENCODING A DIGITAL SIGNAL INTO A SCALABLE BITSTREAM; METHOD FOR DECODING A SCALABLE BITSTREAM.
    • 将数字信号编码到可扩展的字典中的方法; 解码可扩展字典的方法。
    • WO2005036528A1
    • 2005-04-21
    • PCT/SG2004/000323
    • 2004-10-06
    • AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCHYU, RongshanLIN, XiaoRAHARDJA, Susanto
    • YU, RongshanLIN, XiaoRAHARDJA, Susanto
    • G10L19/00
    • G10L19/24H04N19/126H04N19/184H04N19/187H04N19/34H04N19/647
    • A method for encoding a digital signal into a scalable bitstream comprising quantizing the digital signal, and encoding the quantized signal to form a core-layer bitstream, performing an error mapping based on the digital signal and the core-layer bitstream to remove information that has been encoded into the core-layer bitstream, resulting in an error signal, bit-plane coding the error signal based on perceptual information of the digital signal, resulting in an enhancement-layer bitstream, wherein the perceptual information of the digital signal is determined using a perceptual model, and multiplexing the core-layer bitstream and the enhancement-layer bitstream, thereby generating the scalable bitstream. A method for decoding a scalable bitstream into a digital signal comprising de-multiplexing the scalable bitstream into a core-layer bitstream and an enhancement-layer bitstream, decoding and de-quantizing the core-layer bitstream to generate a core-layer signal, bit-plane decoding the enhancement-layer bitstream based on perceptual information of the digital signal, and performing an error mapping based on the bit-plane decoded enhancement-layer bitstream and the de-quantized core-layer signal, resulting in an reconstructed transformed signal, wherein the reconstructed transformed signal is the digital signal.
    • 一种用于将数字信号编码成可分级比特流的方法,包括量化数字信号,以及对量化信号进行编码以形成核心层比特流,基于数字信号和核心层比特流执行误差映射,以去除具有 被编码到核心层比特流中,导致误差信号,基于数字信号的感知信息对误差信号进行位平面编码,产生增强层比特流,其中数字信号的感知信息使用 感知模型,以及多路复用核心层比特流和增强层比特流,由此生成可分级比特流。 一种用于将可分级比特流解码为数字信号的方法,包括将可分级比特流解复用为核心层比特流和增强层比特流,解码和解量化核心层比特流以产生核心层信号 基于数字信号的感知信息对增强层比特流进行平面解码,并且基于比特平面解码的增强层比特流和去量化的核心层信号执行错误映射,导致重构的变换信号, 其中重建的变换信号是数字信号。
    • 5. 发明申请
    • METHODS AND DEVICES FOR PROVIDING AN ENCODED DIGITAL SIGNAL
    • 提供编码数字信号的方法和设备
    • WO2011119111A1
    • 2011-09-29
    • PCT/SG2011/000112
    • 2011-03-22
    • AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCHYU, RongshanLI, TeSHU, HaiyanRAHARDJA, Susanto
    • YU, RongshanLI, TeSHU, HaiyanRAHARDJA, Susanto
    • H04N7/26G10L19/00
    • G10L19/00H04N19/132H04N19/149H04N19/152H04N19/154H04N19/172H04N19/34H04N19/61
    • In one embodiment, a method for providing an encoded digital signal is described comprising determining, for each data frame of a plurality of data frames of a digital signal, a plurality of pairs of an encoding data volume and an encoding quality, wherein each pair of an encoding data volume and an encoding quality specifies the encoding data volume required for achieving the encoding quality; determining for each data frame at least one or more interpolations between the plurality of determined pairs; determining a multi-frame relationship between encoding quality and encoding data volume required to encode the plurality of data frames at the encoding quality based on a combination of the at least one or more interpolations for the plurality of data frames; determining an encoding quality for the plurality of data frames based on the relationship; and providing at least one data frame of the plurality of data frames encoded at the determined encoding quality.
    • 在一个实施例中,描述了一种用于提供编码数字信号的方法,其包括针对数字信号的多个数据帧的每个数据帧确定多对编码数据量和编码质量,其中每对 编码数据量和编码质量指定了实现编码质量所需的编码数据量; 确定每个数据帧在所述多个确定的对之间的至少一个或多个内插; 基于所述多个数据帧的所述至少一个或多个内插的组合,确定以所述编码质量编码所述多个数据帧所需的编码质量和编码数据量之间的多帧关系; 基于所述关系确定所述多个数据帧的编码质量; 以及提供以所确定的编码质量编码的所述多个数据帧中的至少一个数据帧。
    • 6. 发明申请
    • CONTEXT-BASED ENCODING AND DECODING OF SIGNALS
    • 基于语境的编码和信号解码
    • WO2006006936A1
    • 2006-01-19
    • PCT/SG2004/000211
    • 2004-07-14
    • AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCHYU, RongshanLIN, XiaoRAHARDJA, Susanto
    • YU, RongshanLIN, XiaoRAHARDJA, Susanto
    • H04N7/30
    • G10L19/0212G10L19/0017H04N19/13H04N19/136H04N19/176H04N19/184H04N19/34H04N19/647
    • A system for the context-based for the context-based encoding of an input signal includes a domain transform module and a context-based coding module. The domain transform module is operable to convert the input signal into a sequence of transform coefficients c[i]. The context-based coding module includes a bit-plane scanning module, and context modeling module, and a statistical encoding module. The bit-plane scanning module is operable to produce a bit-plane symbol bps [i,bp] for each transform coefficient c[i] and each bit-plane [bp]. The context modeling module is operable to assign one or more context values to each of the received bit plane symbols bps [i,bp]. The statistical coding module is operable to code each of the bit plane symbols bps [i,bp] as a function of one or more of the corresponding context values to produce a context-based encoded symbol stream.
    • 用于输入信号的基于上下文的编码的基于上下文的系统包括域变换模块和基于上下文的编码模块。 域变换模块可操作以将输入信号转换成变换系数c [i]的序列。 基于上下文的编码模块包括位平面扫描模块和上下文建模模块以及统计编码模块。 位平面扫描模块可用于为每个变换系数c [i]和每个位平面[bp]产生位平面符号bps [i,bp]。 上下文建模模块可操作以将一个或多个上下文值分配给每个接收到的位平面符号bps [i,bp]。 统计编码模块可操作以根据一个或多个对应的上下文值对每个比特平面符号bps [i,bp]进行编码,以产生基于上下文的编码符号流。