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    VERFAHREN ZUM ERMITTELN DER GLOBALEN MITHÖRSCHWELLE BEI EINER BITRATENREDUZIERENDEN QUELLCODIERUNG
    3.
    发明公开
    VERFAHREN ZUM ERMITTELN DER GLOBALEN MITHÖRSCHWELLE BEI EINER BITRATENREDUZIERENDEN QUELLCODIERUNG 失效
    VERFAHREN` DER ZUM ermitteln globalenMITHÖRSCHWELLEEIB EINER BITRATENREDUZIERENDEN QUELLCODIERUNG

    公开(公告)号：EP0595944A1

    公开(公告)日：1994-05-11

    申请号：EP92916030.0

    申请日：1992-07-21

    申请人： Institut für Rundfunktechnik GmbH

    发明人： SEDLMEYER, Robert ,  BREFORT, Andreas ,  GROH, Jens ,  KRAFFT, Wolfgang ,  ROSINSKI, Klaus ,  WIESE, Detlef ,  STOLL, Gerhard ,  LINK, Martin

    IPC分类号： H03H17 ,  H04B1 ,  H04B14

    CPC分类号： H04B1/665

    摘要： Afin de déterminer le seuil global d'écoute (6) lors d'un codage à la source de signaux audio numérisés (1) qui en réduit le débit binaire, une prescription de requantification et de codage des valeurs temporelles ou spectrales de balayage (2) du signal audio est déduite de l'effet de masque de tous les masqueurs et masqueurs de bruit concernés (100, 200, 300), ainsi que du seuil d'écoute permanent (400). A cet effet, les flancs de masquage (101, 102, 201, 202, ,301, 302) des masqueurs, le cas échéant sélectionnés, sont segmentés et une approximation est calculée dans les segments individuels au moyen de polymômes d'ordre inférieur, les coefficients des polynômes d'ordre inférieur étant calculés. Pour le calcul des coefficients des polynômes d'ordre inférieur, les intensités des circuits de masquage converties en niveaux logarithmiques sont utilisées. Le seuil global d'écoute (6) est déterminé par étapes, c'est-à-dire pour chaque marqueur l'un après l'autre, à des points d'appui individuels, le cas échéant sélectionnés, à partir des polynômes décrivant les flancs des masqueurs éventuellement sélectionnés.

    摘要翻译： 为了在编码降低其比特率的数字化音频信号源（1）的编码时确定总体监听阈值（6），对时间或频谱扫描值（2）进行再量化和编码的要求， ）所述音频信号是从所有有关掩蔽器和噪声屏蔽器（100，200，300）和所述永久听力阈值（400）的掩蔽效应的。 为此目的，如果适当选择，掩模的掩模侧面（101,102,201,202,301,302）被分段并且通过较低阶聚合物在各个分段中计算近似值。 计算低阶多项式的系数。 为了计算低阶多项式的系数，使用转换为对数电平的掩蔽电路的强度。 总体监听阈值（6）分阶段地确定，也就是说对于每个标记一个接一个地确定，在适当选择的各个支持点处，从多项式描述 可能选择的面具的侧面。

    VERFAHREN ZUM ERZEUGEN EINES ABWÄRTSKOMPATIBLEN TONFORMATES
    5.
    发明公开
    VERFAHREN ZUM ERZEUGEN EINES ABWÄRTSKOMPATIBLEN TONFORMATES 有权
    制造方法是向下兼容的音调格式

    公开(公告)号：EP2353305A1

    公开(公告)日：2011-08-10

    申请号：EP09753036.4

    申请日：2009-11-07

    申请人： Institut für Rundfunktechnik GmbH

    发明人： STOLL, Gerhard ,  GROH, Jens ,  LINK, Martin ,  DEIGMÖLLER, Jörg ,  RUNOW, Bernfried ,  KEIL, Martin

    IPC分类号： H04S3/00

    CPC分类号： H04S3/008

    摘要： In order to convert multi-channel sound formats, in particular five-channel sound formats with the following sound channels:- left channel (L) - right channel (R) - centre channel (C) - rear left channel (Ls) - rear right channel (Rs), into downward-compatible sound formats, in particular into two-channel sound formats with a right channel and a left channel, the following steps are proposed according to ITU-R BS.775: the level of the centre channel (C) is lowered (for example - 3 dB), the centre channel (C), the level of which has been lowered, is distributed to the left channel (L) so as to form a first sum signal (L), the level of the rear left channel (Ls) is lowered (for example by - 3 dB), the rear left channel (Ls), the level of which has been lowered, is distributed to the first sum signal so as to form the third sum signal which corresponds to the left channel (L
    IRT ) of the two-channel sound format, the centre channel (C), the level of which has been lowered, is distributed to the right channel (R) so as to form a second sum signal (R'), the level of the rear right channel (Rs) is lowered (for example by - 3dB), the rear right channel (Rs), the level of which has been lowered, is distributed to the second sum signal so as to form a fourth sum signal which corresponds to the right channel (R
    IRT ) of the two-channel sound format. In order to largely compensate for a shift in the phantom sound sources, a change in the level difference between coherent and incoherent signal components and timbre changes, the invention provides for the spectral values of overlapping time windows to each be dynamically corrected with k samples of the left channel (L) and right channel (R) when forming the first sum signal (L') and the second sum signal (R') and for the spectral values of overlapping time windows to each be dynamically corrected with k samples of the first sum signal (L') and the second sum signal (R') when forming the third and fourth sum signals, and for each sum of the spectral values to be compared with a desired value (A
    soll , where A
    soll ∈ R) before each dynamic correction of spectral values of the left channel (L) and right channel (R).

    A METHOD OF ADAPTING VIDEO IMAGES TO SMALL SCREEN SIZES
    6.
    发明公开
    A METHOD OF ADAPTING VIDEO IMAGES TO SMALL SCREEN SIZES 有权
    VERFAHREN ZUM ANPASSEN VON VIDEOBILDERN一个KLEINEBILDSCHIRMGRÖßEN

    公开(公告)号：EP2269371A1

    公开(公告)日：2011-01-05

    申请号：EP08734700.1

    申请日：2008-03-20

    申请人： Institut für Rundfunktechnik GmbH ,  Joanneum Research Forschungsgesellschaft Mbh Institute Of Information Systems ,  Portugal Telecom Inovacao, Sa

    发明人： DEIGMÖLLER, Jörg ,  STOLL, Gerhard ,  NEUSCHMIED, Helmut ,  KRIECHBAUM, Andreas ,  DOS SANTOS CARDOSO, José Bernardo ,  OLIVEIRA DE CARVALHO, Fausto, José ,  SALGADO DE ALEM, Roger ,  HUET, Benoit ,  MERIALDO, Bernard ,  TRICHET, Remi

    IPC分类号： H04N5/44 ,  G06K9/46 ,  H04N5/14

    CPC分类号： H04N5/4401 ,  G06K9/00624 ,  G06K9/3233 ,  G06K9/46 ,  G09G2340/0442 ,  G09G2340/045 ,  H04N5/147 ,  H04N7/0122 ,  H04N21/4126 ,  H04N21/44008 ,  H04N21/440245 ,  H04N21/440263 ,  H04N21/4621 ,  H04N21/84

    摘要： To improve a cropping system by obtaining coverage of a wide range of contents for smaller sized displays of handheld devices, a method starts from a metadata aggregation and corresponding video, e.g. in post-production, program exchange and archiving, wherein (a) video is passed to a video analysis to deliver video, e.g. by use of motion detection, morphology filters, edge detection, etc., (b) separated video and metadata are combined to extract important features in a context wherein important information from the metadata is categorized and used to initialize a dynamically fitted chain of feature extraction steps adapted to the delivered video content, (c) extracted important features are combined to define regions of interest (ROI) which are searched in consecutive video frames by object tracking, the object tracking identifies a new position and deformation of each initialized ROI in consecutive video frames and returns this information to the feature extraction thereby obtaining a permanent communication between the feature extraction and the object tracking, (d) one or plural ROIs are extracted and input video frame by video frame into a cropping step (e); based on weighting information a well composed image part is cropped by classifying the supplied ROIs by importance, and (f) the cropped image area(s) are scaled to the desired small screen size.

    摘要翻译： 为了通过获得针对手持设备的较小尺寸显示器的广泛内容的覆盖来改进裁剪系统，方法从元数据聚合和对应的视频（例如， 在后期制作，节目交换和归档中，其中（a）将视频传递到视频分析以传送视频，例如视频。 通过使用运动检测，形态滤波器，边缘检测等，（b）分离的视频和元数据被组合以在上下文中提取重要特征，其中来自元数据的重要信息被分类并用于初始化动态拟合的特征提取链 将所提供的视频内容适应的步骤，（c）提取的重要特征被组合以定义通过对象跟踪在连续视频帧中搜索的感兴趣区域（ROI），对象跟踪识别连续的每个初始化ROI的新位置和变形 视频帧，并将该信息返回到特征提取，从而获得特征提取和对象跟踪之间的永久通信;（d）提取一个或多个ROI并通过视频帧将视频帧输入到裁剪步骤（e）中; 基于加权信息，通过按照重要性对所提供的ROI进行分类来裁剪精细组合的图像部分，以及（f）裁剪的图像区域被缩放到期望的小屏幕尺寸。

    VERFAHREN ZUM ERMITTELN DER GLOBALEN MITHÖRSCHWELLE BEI EINER BITRATENREDUZIERENDEN QUELLCODIERUNG
    8.
    发明授权
    VERFAHREN ZUM ERMITTELN DER GLOBALEN MITHÖRSCHWELLE BEI EINER BITRATENREDUZIERENDEN QUELLCODIERUNG 失效
    方法决定整体侧的比特率异径源代码。

    公开(公告)号：EP0595944B1

    公开(公告)日：1994-12-14

    申请号：EP92916030.7

    申请日：1992-07-21

    申请人： Institut für Rundfunktechnik GmbH

    发明人： SEDLMEYER, Robert ,  BREFORT, Andreas ,  GROH, Jens ,  KRAFFT, Wolfgang ,  ROSINSKI, Klaus ,  WIESE, Detlef ,  STOLL, Gerhard ,  LINK, Martin

    IPC分类号： H04B1/66

    CPC分类号： H04B1/665

    摘要： In oder to find the overall monitoring threshold (6) during a bit-rate-reducing source coding of digitised audio signals (1), a requantization and coding regulation for the time or spectral scanning values (2) of the audio signal is found from the masking effect of all relevant maskers and noise maskers (100, 200, 300) and from the steady audio threshold (400). To this end the masking sides (101, 102, 201, 202, 301, 302) of the selected maskers are segmented and approximated in the individual segments by low-order polynomials, whereby the coefficients of the low-order polynomials are found. The intensities of the maskers converted into a logarithmic level are used to find the coefficients of the low-order polynomials. The overall monitoring threshold (6) is found at individual or eventually selected support points in steps, masker by masker, from the polynomials describing the masking sides of the eventually selected maskers.

    VERFAHREN ZUM ÜBERTRAGEN ODER SPEICHERN DIGITALISIERTER, MEHRKANALIGER TONSIGNALE
    9.
    发明公开
    VERFAHREN ZUM ÜBERTRAGEN ODER SPEICHERN DIGITALISIERTER, MEHRKANALIGER TONSIGNALE 失效
    方法用于转移或存储的数字化多声道信号。

    公开(公告)号：EP0632944A1

    公开(公告)日：1995-01-11

    申请号：EP93920518.0

    申请日：1993-03-17

    申请人： Institut für Rundfunktechnik GmbH

    发明人： SILZLE, Andreas ,  STOLL, Gerhard ,  THEILE, Günther ,  LINK, Martin

    IPC分类号： H04B1 ,  H04H20 ,  H04S3

    CPC分类号： H04H20/88 ,  H04B1/665

    摘要： In order to transmit or to store digitalized, multi-channel audio signals which are digitally represented by a plurality of spectral partial band signals, at the encoder, the partial band signals of different audio channels but having the same frequency position are combined across channels according to a dynamic control signal. This control signal is derived from several audio channels by an audio signal analysis based on a psycho-acoustic binaural model. On the side of the decoder, the partial band signals of several audio channels but having the same frequency position are dissociated across channels according to a control value derived from the dynamic control signal, transmitted or stored therewith.