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    • 2. 发明公开
    • Signal processing method and apparatus
    • 信号处理方法和装置
    • EP0072533A3
    • 1984-02-22
    • EP82107273
    • 1982-08-11
    • Battelle-Institut e.V.
    • Schmalfuss, Harald, Dr.Götz, Hans-Joachim
    • H04N05/14H04N09/535
    • H04N5/14
    • Zur Ver- und Bearbeitung von Signalen, insbesondere von Videosignalen, wird zum Zwecke einer zweidimensiona len Filterung das Eingangssignal einerseits mit der Impul santwort einer Zeile gefaltet und andererseits um die Dauer einer Zeile verzögert. Bei der Faltung wird das Signal für jeden Koeffizienten der Impulsantwort einer Zeile jeweils um die Dauer eines Bildpunktes verzogert, mit dem betreffenden Koeffizienten der Impulsantwort multipliziert und das Ergeb nis aufsummiert. Dieser Vorgang wird für jede Zeile der Impulsantwort wiederholt und alle Faltungsergebnisse wer den aufsummiert. Das Ergebnis der Summation entspricht dem Signal eines Bildes, das mit einem zweidimensionalen, beliebig reellen Punktbild gefaltet wurde.
      Gemäß einem alternativen Verfahren wird das Ein gangssignal auf N Leitungen eingespeist. Die Zahl N wird entsprechend der gewünschten Genauigkeit des kontinuierli chen Filterverlaufs festgelegt. In jeder Leitung wird das Signal mit einer vorgebbaren Trägerfrequenz moduliert gefiltert, demoduliert und anschließend verstärkt bzw. abge schwächt, und die resultierenden Signale werden aufsum miert schwächt. Zur zweidimensionalen Filterung wird die gesamte Signalbandbreite rotierend angetastet und anschließend an die Filterung die Rotation rückgängig gemacht.
    • 4. 发明公开
    • Delay circuit arrangements
    • 延迟电路安排
    • EP0102773A3
    • 1985-07-03
    • EP83304600
    • 1983-08-09
    • SONY CORPORATION
    • Tanaka, Sadaaki c/o Patent Division
    • H04N05/14
    • H04N5/208
    • A delay circuit arrangement comprises modulating means (41A, 41 B) for effecting contour modulation of a video signal using a signal from a carrier oscillator (50) as a carrier, delay means (43) for delaying the modulated output of the modulating means (41A, 41B), a variable phase shifter (52) for phase shifting the carrier oscillator output signal, demodulating means (45A, 45B) for effecting demodulation by synchronous detection using the output of the variable phase shifter (52) as a synchronizing signal, an adder (47) for superimposing a reference signal on a first demodulated signal from the demodulating means (45A, 45B) corresponding to a first input signal to the modulating means (41A, 41B) and supplying the resultant signal as a second input signal to the modulating means (41A, 41 B), and control means (54, 55, 56) for controlling the amount of phase shift by the variable phase shifter (52) according to the reference signal demodulated by the demodulating means (45A, 45B), wherein the demodulating means (45A, 45B) produces a first demodulated signal delayed relative to the first input signal supplied to the modulating means (41A, 41B) by an amount determined by the delay means (43) and a second demodulated signal delayed relative to the first input signal by double the amount.
    • 6. 发明公开
    • Charge transfer device incorporating Laplacian thresholding with a time delay and integration imaging array
    • 带时间延迟和集成成像阵列的LAPLACIAN阈值充电传输装置
    • EP0030292A3
    • 1983-03-30
    • EP80107145
    • 1980-11-18
    • International Business Machines Corporation
    • White, James Merrill
    • H04N05/30H01L27/14H04N05/14
    • H04N5/37206
    • A charge transfer device incorporating Laplacian thresholding with an imaging array (1) operated in delay and integration mode to generate an array of charge packets corresponding to the light intensity at the picture elements of an irradiating image. The charge packets are gated in parallel to a line image storage array (7) that stores n rows of charge packets in a columnar relation. A replicator circuit (11) generates a replicated sum charge for each column of charge packets of the line image storage array. Each replicated sum charge corresponds to the sum of the n charges stored in a column (13) at a particular instant in time and the charge stored at the (n+1)/2 position of each column is the middle charge for the associated replicated sum charge. Parallel delay gating electrodes (15) gate a row of replicated sum charges to an area average serial shift register (17) at the same time that a row of corresponding middle charges is gated into a focused element serial shift register (9). The serial shift registers are gated synchronously in a serial fashion and, as the registers (9, 17) are gated, the endmost n replicated sum charges are summed by a horizontal summer (26) and 1/n 2 of the sum is subtracted by a comparator (23) from an associated central charge stored in the focused element serial shift register (9). The difference is the Laplacian for the central charge. The output of the focused element serial shift register, the summer output, and the Laplacian uare useful for subsequent image processing.
    • 一种电荷转移装置,其包括具有以延迟和积分模式操作的成像阵列(1)的拉普拉斯阈值,以产生对应于照射图像的像素处的光强度的电荷分组阵列。 电荷包被并行地与存储有n行电荷包的列图像存储阵列(7)进行选通。 复制器电路(11)为行图像存储阵列的每列电荷包生成复制和电荷。 每个复制和电荷对应于在特定时刻存储在列(13)中的n个电荷的和,并且存储在每列的(n + 1)/ 2位置处的电荷是相关联的复合总和的中间电荷 收费。 并行延迟选通电极(15)将一行复制和电荷门控到区域平均串行移位寄存器(17),同时将一行相应的中间电荷门控到聚焦元件串行移位寄存器(9)中。 串行移位寄存器以串行方式同步门控,并且当寄存器(9,17)被选通时,最终的n个复制和电荷由水平夏令(26)相加,并且和的1 / n <2 由比较器(23)从存储在聚焦元件串行移位寄存器(9)中的相关联的中央电荷减去。 不同之处在于中央收费的拉普拉斯(Laplacian)。 聚焦元件串行移位寄存器,夏季输出和拉普拉斯算子的输出对后续图像处理有用。
    • 8. 发明申请
    • IMPROVED CORRELATION PROCESSING FOR MOTION ESTIMATION
    • 改进运动估计的相关处理
    • WO1997004588A1
    • 1997-02-06
    • PCT/EP1996003056
    • 1996-07-09
    • INNOVISION PLCBORER, Timothy, John
    • INNOVISION PLC
    • H04N05/14
    • H04N7/0137G06T7/262H04N5/145
    • Motion correlation is a way of analysing movement in image sequences such as television signals. The estimation of movement in television pictures is essential to enable the use of motion compensated processing techniques. These techniques yield improved quality video processing and moving image compression. Motion correlation would be used as part of a video motion estimation system. This invention describes a number of enhancements to, and a simplfied, efficient implementation of, the basic motion correlation algorithm. It is shown how to produce motion correlation surfaces co-timed with output, rather than input, pictures. It is also shown how to average power spectra to obtain improved noise performance, and hence improved accuracy, in motion correlation. Finally it is shown that separate correlation surfaces can be produced relating to 'future' and 'past' pictures.
    • 运动相关是分析电视信号等图像序列运动的一种方法。 电视图像中运动的估计对于使用运动补偿处理技术至关重要。 这些技术产生改进的质量视频处理和运动图像压缩。 运动相关将被用作视频运动估计系统的一部分。 本发明描述了基本运动相关算法的一些增强和简化的有效实现。 显示了如何产生与输出同时进行运动相关曲面,而不是输入图像。 还示出了如何平均功率谱以获得改善的噪声性能,并因此提高运动相关性的精度。 最后,显示出与“未来”和“过去”图片有关的单独的相关表面。