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    • 1. 发明申请
    • Method of encoding a signal into a bit stream
    • 将信号编码为比特流的方法
    • US20060149801A1
    • 2006-07-06
    • US10562358
    • 2004-06-28
    • Ihor Kirenko
    • Ihor Kirenko
    • G06F15/00
    • G06T9/005
    • The invention relates to a method of encoding an input signal into an output bit stream (BS). Said method comprises steps of applying (1) a transformation to a block of values (BV) in order to get a transformed block (T), scanning (2) the coefficients (C1-C1) of a transformed block (TB) according to a coefficient scanning order, splitting (3) a scanned coefficient (Ci) into K groups of bits (Ci,1-Ci,K) such that at least a group of bits comprise at least 2 bits and such that said scanned coefficient (Ci) is the concatenation of the K groups of bits, entropy coding (4) a kth group of bits (Ci,k) using entropy codes into a kth entropy coded group of bits (ECi,k) and forming (5) a block bit stream (BBS) from the K entropy coded groups of bits of the scanned coefficients of the transformed block, said output bit stream (BS) comprising said block bit stream (BBS).
    • 本发明涉及将输入信号编码为输出比特流(BS)的方法。 所述方法包括以下步骤:为了得到变换块(T),应用(1)变换到值块(BV),扫描(2)系数(C 1→C
    • 2. 发明申请
    • Method for spatial up-scaling of video frames
    • 视频帧的空间缩放方法
    • US20060284891A1
    • 2006-12-21
    • US10569716
    • 2004-08-19
    • Ihor KirenkoTaras Telyuk
    • Ihor KirenkoTaras Telyuk
    • G09G5/00
    • G06T3/4084
    • The present invention relates to method for spatial up-scaling of an original video frame comprising p rows and q colums of pixels, where p and q are integers. Said up-scaling method comprises a step of constructing high-low (HL), low-high (LH), and high-high (HH) virtual spatial frequency subbands comprising p rows and q colums of pixels from the use of high-pass filtering of the original video frame, considered as a low-low spatial frequency subband (LL), in horizontal, vertical, and both directions, respectively. Said up-scaling method further comprises a step of applying an inverse wavelet transform (IWT) to the constructed subbands and to the original video frame in such a way that an up-sampled version of the original image is obtained.
    • 本发明涉及用于空间缩放包括p行和q列的像素的原始视频帧的方法,其中p和q是整数。 所述的扩展方法包括从使用高通的方式构建包括p行和q列的像素的高低(HL),低 - 高(LH)和高 - 高(HH)虚拟空间频率子带的步骤 分别在水平,垂直和两个方向滤波原始视​​频帧,被视为低低空间频率子带(LL)。 所述上调方法还包括以下方式应用逆小波变换(IWT)到构造的子带和原始视频帧,使得获得原始图像的上采样版本。
    • 3. 发明授权
    • Method of spatial and SNR picture compression
    • 空间和SNR图像压缩方法
    • US07889937B2
    • 2011-02-15
    • US11571994
    • 2005-07-06
    • Ihor Kirenko
    • Ihor Kirenko
    • G06K9/46
    • H04N19/36
    • The versatile method of spatial and SNR scalable picture compression comprises: high resolution encoding (202a) an input picture (vi) yielding high resolution encoded data (coHR,LQ), being the base data; deriving a first down-scaled representative picture (p1) on the basis of the high resolution encoded data (coHR,LQ); deriving a second down-scaled representative picture (p2) on the basis of the input picture (vi); and lower resolution encoding (214) lower resolution quality enhancement data (coMR,MQ), usable for improving the visual quality of a picture reconstructable from the high resolution encoded data (coHR,LQ), on the basis of comparing the first down-scaled representative picture (p1) with the second down-scaled representative picture. This enables good bit-rate distribution for multi-resolution, multi-quality users.
    • 空间和SNR可缩放图像压缩的通用方法包括:高分辨率编码(202a)输出图像(vi),产生作为基本数据的高分辨率编码数据(coHR,LQ); 基于高分辨率编码数据(coHR,LQ)导出第一缩小代表图像(p1); 基于输入图像(vi)导出第二缩小代表图像(p2); 以及较低分辨率编码(214)较低分辨率质量增强数据(coMR,MQ),其可用于基于将所述第一次缩放比例缩小的所述第一缩放比例数据(coHR,LQ)进行比较来改善从所述高分辨率编码数据(coHR,LQ)可重建的图像的视觉质量 代表性图片(p1)与第二个缩小代表图片。 这为多分辨率,多质量的用户提供了良好的比特率分配。
    • 4. 发明申请
    • Transcoder for a variable length coded data stream
    • 用于可变长度编码数据流的转码器
    • US20060072667A1
    • 2006-04-06
    • US10535284
    • 2003-10-29
    • Ihor KirenkoGerben Hekstra
    • Ihor KirenkoGerben Hekstra
    • H04N11/04H04N7/12H04B1/66H04N11/02
    • H04N19/93H04N19/13H04N19/132H04N19/14H04N19/149H04N19/152H04N19/176H04N19/18H04N19/184H04N19/40
    • The invention relates to a transcoder (100) for a variable length coded data stream such as an MPEG 2 coded data stream transcoder (100) comprises a receiver (101) which receives the variable length coded data stream. The receiver (101) is connected to a significance processor (107) that determines if a variable length coded coefficient is significant or less significant. The significance processor (107) is connected to a truncation processor (111) which truncates the less significant coefficients. The trancoder further comprises an encode processor (109) which generates a transcoded data stream from the original significant coefficients and the truncated less significant coefficients. All processing may be performed exclusively in the variable length code domain thereby providing a low complexity and high speed transcoder.
    • 本发明涉及一种用于诸如MPEG 2编码数据流代码转换器(100)的可变长度编码数据流的代码转换器(100),包括接收可变长度编码数据流的接收机(101)。 接收器(101)连接到有效性处理器(107),该有效性处理器确定可变长度编码系数是重要还是不太显着。 有效性处理器(107)连接到截断较小有效系数的截断处理器(111)。 转码器还包括编码处理器(109),其从原始有效系数和截断的较不重要的系数产生代码转换的数据流。 所有处理可以在可变长度代码域中专门执行,从而提供低复杂度和高速代码转换器。
    • 6. 发明申请
    • Signal-processing system
    • 信号处理系统
    • US20070182859A1
    • 2007-08-09
    • US10598230
    • 2005-02-24
    • Gerben HekstraIhor KirenkoMarco BosmaFrederik De BruijnGerard De HaanRogier LodderAbraham Riemens
    • Gerben HekstraIhor KirenkoMarco BosmaFrederik De BruijnGerard De HaanRogier LodderAbraham Riemens
    • H04N5/21H04N9/64H04N5/14H04N5/91
    • H04N9/646G06T5/001H04N5/142
    • The invention relates to a signal processing system comprising first electronic means for storing an input signal, second means for a real-time processing of the input signal thus stored, and third electronic means for storing the signal thus processed. This system is according to the invention, characterized in that said second processing means themselves comprise off-line signal enhancement means applied to said input signal and using available processing resources, not still used for real-time or on-line processing, for delivering an enhanced signal and storing it in said third means for storing the signal processed by the second processing means. The signal enhancement means may also comprise means for modifying said enhanced signal, said third electronic means for storing the processed signal being also able to store the enhanced signal thus modified, and the third electronic means for storing the signal processed may be provided for outputting the enhanced signal and/or the modified enhanced signal in real time.
    • 本发明涉及一种信号处理系统,包括用于存储输入信号的第一电子装置,用于对由此存储的输入信号进行实时处理的第二装置,以及用于存储由此处理的信号的第三电子装置。 该系统根据本发明,其特征在于,所述第二处理装置本身包括应用于所述输入信号的离线信号增强装置,并使用尚未用于实时或在线处理的可用处理资源,用于传送 增强信号并将其存储在所述第三装置中,用于存储由第二处理装置处理的信号。 信号增强装置还可以包括用于修改所述增强信号的装置,用于存储经处理的信号的所述第三电子装置也能够存储如此修改的增强信号,并且可以提供用于存储处理的信号的第三电子装置,用于输出 增强信号和/或修改的增强信号。
    • 8. 发明申请
    • METHOD OF SPATIAL AND SNR FINE GRANULAR SCALABLE VIDEO ENCODING AND TRANSMISSION
    • 空间和信噪比精细可视化视频编码和传输方法
    • US20090022230A1
    • 2009-01-22
    • US10597223
    • 2005-01-14
    • Ihor Kirenko
    • Ihor Kirenko
    • H04N7/26
    • H04N19/36H04N19/132H04N19/146H04N19/187H04N19/33H04N19/34H04N19/59H04N19/61
    • The invention relates to a method of coding video data available in the form of a first input stream of video frames, and to a corresponding coding device. This method, implemented for instance in three successives stages (101, 102, 103), comprises the steps of (a) encoding said first input stream to produce a first coded base layer stream (BL1) suitable for a transmission at a first base layer bitrate; (b) based on said first input stream and a decoded version of said encoded first base layer stream, generating a first set of residual frames in the form of a first enhancement layer stream and encoding said stream to produce a first coded enhancement layer stream (EL1); and (c) repeating at least once a similar process in order to produce further coded base layer streams (BL2, BL3, . . . ) and further coded enhancement layer streams (EL2, EL3, . . . ). The first input stream is thus, for obtaining a required spatial resolution, compressed by encoding the base layers up to said spatial resolution with a lower bitrate and allocating a higher bitrate to the last base layer and/or to the enhancement which corresponds to said required spatial resolution. A corresponding transmission method is also proposed.
    • 本发明涉及以视频帧的第一输入流的形式对视频数据进行编码的方法,以及相应的编码装置。 这种方法,例如在三个成功阶段(101,102,103)中实现,包括以下步骤:(a)对所述第一输入流进行编码,以产生适合于在第一基层传输的第一编码基本层流(BL1) 比特率 (b)基于所述第一输入流和所述编码的第一基本层流的解码版本,生成第一增强层流形式的第一组残差帧,并对所述流进行编码以产生第一编码增强层流( EL1); 以及(c)重复至少一次类似的过程,以便产生另外编码的基本层流(BL2,BL3 ...)和进一步编码的增强层流(EL2,EL3,...)。 因此,第一输入流用于获得所需的空间分辨率,通过以较低的比特率将基本层编码达到所述空间分辨率并将更高的比特率分配给最后的基本层和/或对应于所述所需的空间分辨率 空间分辨率。 还提出了相应的传输方法。
    • 9. 发明申请
    • Method of spatial and snr picture compression
    • 空间和snr图片压缩方法
    • US20080095450A1
    • 2008-04-24
    • US11571994
    • 2005-07-13
    • Ihor Kirenko
    • Ihor Kirenko
    • G06K9/36
    • H04N19/36
    • The versatile method of spatial and SNR scalable picture compression comprises: high resolution encoding (202a) an input picture (vi) yielding high resolution encoded data (coIIR,LQ), being the base data; deriving a first down-scaled representative picture (p1) on the basis of the high resolution encoded data (coHR,LQ); deriving a second down-scaled representative picture (p2) on the basis of the input picture (vi); and lower resolution encoding (214) lower resolution quality enhancement data (coMR,MQ), usable for improving the visual quality of a picture reconstructable from the high resolution encoded data (coIIR,LQ), on the basis of comparing the first down-scaled representative picture (p1) with the second down-scaled representative picture. This enables good bit-rate distribution for multi-resolution, multi-quality users.
    • 空间和SNR可分级图像压缩的通用方法包括:高分辨率编码(202a)输入图像(vi),产生作为基本数据的高分辨率编码数据(coIIR,LQ); 基于高分辨率编码数据(coHR,LQ)导出第一缩小代表图像(p 1); 基于输入图像(vi)导出第二缩小代表图像(p 2); 以及较低分辨率编码(214)较低分辨率质量增强数据(coMR,MQ),其可用于基于将所述第一缩小尺度 代表性图片(p 1)与第二个缩小代表图片。 这为多分辨率,多质量的用户提供了良好的比特率分配。