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    Method and apparatus for video signal conversion
    2.
    发明公开
    Method and apparatus for video signal conversion 审中-公开
    用于视频信号转换方法和装置

    公开(公告)号：EP0909092A3

    公开(公告)日：2000-06-07

    申请号：EP98118653.9

    申请日：1998-10-02

    申请人： Hitachi, Ltd.

    发明人： Hirano, Yasuhiro ,  Ishikura, Kazuo ,  Sugiyama, Masato ,  Nakajima, Mitsuo ,  Kurita, Toshiyuki ,  Matono, Takaaki ,  Takata, Haruki

    IPC分类号： H04N7/01

    CPC分类号： H04N5/46 ,  H04N5/147 ,  H04N7/012 ,  H04N7/014 ,  H04N19/40 ,  H04N19/51 ,  H04N19/587 ,  H04N21/440218

    摘要： A method and apparatus for video signal format conversion are provided which can suppress picture quality deterioration by simple signal processing, and produce high-quality pictures with low cost. A motion compensation frame rate converter (2) detects a motion vector BV by using a block unit motion vector estimation block (5), and generates a pixel unit motion vector PV in mini-block units by using a pixel unit motion vector generator (6). A motion compensation interpolated frame generator (7) generates a compensation vector by using a motion compensation vector generator (10) on the basis of this PV, and generates motion compensation signals by using current and previous frame motion compensation signal generators (8) and (9). A motion compensation signal setter (11) produces a frame rate converted signal S4 by generating interpolated frame signals from the average value of both signals when the difference signal between the absolute values of both compensation signals is smaller than a threshold, or from a frame signal closer to an interpolation frame from the time point of view when it is larger than or equal to the threshold.

    Method and apparatus for video signal conversion
    4.
    发明公开
    Method and apparatus for video signal conversion 审中-公开
    Verfahren und Vorrichtung zur Videosignalumsetzung

    公开(公告)号：EP0909092A2

    公开(公告)日：1999-04-14

    申请号：EP98118653.9

    申请日：1998-10-02

    申请人： Hitachi, Ltd.

    发明人： Hirano, Yasuhiro ,  Ishikura, Kazuo ,  Sugiyama, Masato ,  Nakajima, Mitsuo ,  Kurita, Toshiyuki ,  Matono, Takaaki ,  Takata, Haruki

    IPC分类号： H04N7/01

    CPC分类号： H04N5/46 ,  H04N5/147 ,  H04N7/012 ,  H04N7/014 ,  H04N19/40 ,  H04N19/51 ,  H04N19/587 ,  H04N21/440218

    摘要： A method and apparatus for video signal format conversion are provided which can suppress picture quality deterioration by simple signal processing, and produce high-quality pictures with low cost. A motion compensation frame rate converter (2) detects a motion vector BV by using a block unit motion vector estimation block (5), and generates a pixel unit motion vector PV in mini-block units by using a pixel unit motion vector generator (6). A motion compensation interpolated frame generator (7) generates a compensation vector by using a motion compensation vector generator (10) on the basis of this PV, and generates motion compensation signals by using current and previous frame motion compensation signal generators (8) and (9). A motion compensation signal setter (11) produces a frame rate converted signal S4 by generating interpolated frame signals from the average value of both signals when the difference signal between the absolute values of both compensation signals is smaller than a threshold, or from a frame signal closer to an interpolation frame from the time point of view when it is larger than or equal to the threshold.

    摘要翻译： 提供了一种用于视频信号格式转换的方法和装置，其可以通过简单的信号处理来抑制图像质量劣化，并且以低成本生产高质量的图像。 运动补偿帧速率转换器（2）通过使用块单元运动矢量估计块（5）来检测运动矢量BV，并且通过使用像素单位运动矢量生成器（6）生成以小块为单位的像素单位运动矢量PV ）。 运动补偿内插帧发生器（7）通过使用基于该PV的运动补偿矢量发生器（10）产生补偿矢量，并且通过使用当前和前一帧运动补偿信号发生器（8）和（ 9）。 运动补偿信号设定器（11）通过在两个补偿信号的绝对值之间的差信号小于阈值时从两个信号的平均值产生内插帧信号，从帧信号 当其大于或等于阈值时，从时间点更接近插值帧。

    Conversion apparatus for image signals and TV receiver
    5.
    发明公开
    Conversion apparatus for image signals and TV receiver 失效
    Vorrichtung zur Umsetzung von Bildsignalen sowieFernsehempfänger

    公开(公告)号：EP0883298A2

    公开(公告)日：1998-12-09

    申请号：EP98110021.7

    申请日：1998-06-02

    申请人： Hitachi, Ltd.

    发明人： Hirano, Yasuhiro ,  Ishikura, Kazuo ,  Sugiyama, Masato ,  Nakajima, Mitsuo ,  Kurita, Toshiyuki ,  Takata, Haruki ,  Kimura, Shoji ,  Tsuru, Yasutaka ,  Kanehachi, Takashi ,  Matono, Takaaki

    IPC分类号： H04N7/01

    CPC分类号： H04N7/014 ,  H04N5/145 ,  H04N7/012 ,  H04N19/587

    摘要： A system conversion apparatus and method for image signals are disclosed, in which an interlaced scanning image signal S1 is converted into a progressive scanning image signal S2 by an IP converter (1), a block-based motion vector is searched for based on the progressive scanning image signal S2 by a block-based motion vector search unit (5), a motion vector with minimum motion estimation error determined for each mini-block using the block-based motion vector is assigned as a pixel-based motion vector in a mini-block by a pixel-based motion vector generator (6), and an interpolated frame of the image signal is generated using the pixel-based motion vector and a progressive scanning image signal sequence S4 higher in frame frequency is output by a motion compensative interpolated frame generator (7).

    摘要翻译： 公开了一种用于图像信号的系统转换装置和方法，其中隔行扫描图像信号S1由IP转换器（1）转换成逐行扫描图像信号S2，基于基于块的运动矢量，基于逐行扫描图像信号 通过基于块的运动矢量搜索单元（5）扫描图像信号S2，使用基于块的运动矢量为每个小块确定最小运动估计误差的运动矢量被分配为基于像素的运动矢量 通过基于像素的运动矢量生成器（6）进行块化，并且使用基于像素的运动矢量生成图像信号的内插帧，并且通过运动补偿插值输出帧频较高的逐行扫描图像信号序列S4 帧发生器（7）。

    A semiconductor integrated circuit
    6.
    发明公开
    A semiconductor integrated circuit 失效
    Eine integrierte Halbleiterschaltung。

    公开(公告)号：EP0676764A2

    公开(公告)日：1995-10-11

    申请号：EP95302121.9

    申请日：1995-03-29

    申请人： HITACHI, LTD.

    发明人： Watanabe, Takao ,  Nakagome, Yoshinobu ,  Ishikura, Kazuo ,  Nakagawa, Tetsuya ,  Kiuchi, Atsushi

    IPC分类号： G11C7/00

    CPC分类号： G11C7/1006 ,  G06F17/10 ,  G06F17/15 ,  G06K9/4642

    摘要： Herein disclosed is a semiconductor integrated circuit capable of executing processing operations using two-dimensional data in a high parallelism and at a high speed.
    The semiconductor integrated circuit comprises: a two-dimensional memory array (MAR); a parallel data transfer circuit (TRC) for transferring the data read out in parallel through data lines, in parallel to a processing circuit group by selecting the word lines of the two-dimensional memory array; and the processing circuit group (PE) for executing processing operations in parallel by using the data transferred from said parallel data transfer circuit. Each of the processing circuits can make access to the plurality of series word lines of said two-dimensional memory array and the data lines through the parallel data transfer circuit, and the data lines of the two-dimensional memory array, to which a plurality of adjoining processing circuits can make access, have an overlapped range.
    Since the data lines of the two-dimensional memory array, to which the adjoining processing circuits can make access, have an overlapped range, the convolution processing operations or the like can be ex ecuted in parallel for the two-dimensional data stored in the two-dimensional memory array.

    摘要翻译： 这里公开的是能够以高并行性和高速执行使用二维数据的处理操作的半导体集成电路。 半导体集成电路包括：二维存储器阵列（MAR）; 并行数据传输电路（TRC），用于通过选择二维存储器阵列的字线，将通过数据线并行读出的数据并行地传送到处理电路组; 以及用于通过使用从所述并行数据传送电路传送的数据并行执行处理操作的处理电路组（PE）。 每个处理电路可以通过并行数据传输电路和二维存储器阵列的数据线访问所述二维存储器阵列的多个串行字线和数据线，多个 相邻的处理电路可以进行访问，具有重叠的范围。 由于相邻的处理电路可以进行访问的二维存储器阵列的数据线具有重叠的范围，所以可以并行地对存储在两个存储器中的二维数据进行卷积处理操作等 维数内存数组。

    Signal processing method and circuit for format conversion of picture signal
    8.
    发明公开
    Signal processing method and circuit for format conversion of picture signal 失效
    图像信号格式转换的信号处理方法和电路

    公开(公告)号：EP0837601A3

    公开(公告)日：1998-05-13

    申请号：EP97117877.7

    申请日：1997-10-15

    申请人： HITACHI, LTD.

    发明人： Hirano, Yasuhiro ,  Ishikura, Kazuo ,  Sugiyama, Masato ,  Nakajima, Mitsuo ,  Kimura, Shoji ,  Kurita, Toshiyuki ,  Itagaki, Tsuguo ,  Takata, Haruki

    IPC分类号： H04N5/44

    CPC分类号： G06T3/4007 ,  H04N7/012 ,  H04N7/0122

    摘要： In order to carry out a format conversion or a scaling processing on a picture signal by a memory of small capacity, interlace scanning picture signals are converted into progressive scanning picture signals by interpolation by using an IP converter 1 and a multiple-scan converter 3. Scaling processing by expansion and compression in the horizontal direction is firstly performed by using a horizontal scaling unit 5, processing by expansion, compression, frame rate conversion, synchronisation and the like are secondly performed by using a vertical scaling unit 6 and commonly using memories used in scaling processing in the vertical direction, and finally, colour space conversion or inverse gamma processing is performed by using a picture quality improving unit 8 thereby converting the picture signals into picture signals S6 having a predetermined format.

    摘要翻译： 为了通过小容量存储器对图像信号执行格式转换或缩放处理，通过使用IP转换器1和多重扫描转换器3通过插值将隔行扫描图像信号转换为逐行扫描图像信号。 首先通过使用水平缩放单元5执行通过水平方向上的扩展和压缩的缩放处理，然后通过使用垂直缩放单元6并且通常使用使用的存储器来执行通过扩展，压缩，帧率转换，同步等的处理 在垂直方向进行缩放处理，最后，通过使用画面质量改进单元8执行色彩空间转换或反向伽玛处理，从而将画面信号转换为具有预定格式的画面信号S6。

    Signal processing method and circuit for format conversion of picture signal
    9.
    发明公开
    Signal processing method and circuit for format conversion of picture signal 失效
    Signalverarbeitungsverfahren und-saltung zur Formatumwandlung eines Bildsignals

    公开(公告)号：EP0837601A2

    公开(公告)日：1998-04-22

    申请号：EP97117877.7

    申请日：1997-10-15

    申请人： HITACHI, LTD.

    发明人： Hirano, Yasuhiro ,  Ishikura, Kazuo ,  Sugiyama, Masato ,  Nakajima, Mitsuo ,  Kimura, Shoji ,  Kurita, Toshiyuki ,  Itagaki, Tsuguo ,  Takata, Haruki

    IPC分类号： H04N5/44

    CPC分类号： G06T3/4007 ,  H04N7/012 ,  H04N7/0122

    摘要： In order to carry out a format conversion or a scaling processing on a picture signal by a memory of small capacity, interlace scanning picture signals are converted into progressive scanning picture signals by interpolation by using an IP converter 1 and a multiple-scan converter 3. Scaling processing by expansion and compression in the horizontal direction is firstly performed by using a horizontal scaling unit 5, processing by expansion, compression, frame rate conversion, synchronisation and the like are secondly performed by using a vertical scaling unit 6 and commonly using memories used in scaling processing in the vertical direction, and finally, colour space conversion or inverse gamma processing is performed by using a picture quality improving unit 8 thereby converting the picture signals into picture signals S6 having a predetermined format.

    摘要翻译： 为了通过小容量的存储器对图像信号执行格式转换或缩放处理，隔行扫描图像信号通过使用IP转换器1和多扫描转换器3进行插值而被转换为逐行扫描图像信号。 首先通过使用水平缩放单元5执行通过在水平方向上的扩展和压缩的缩放处理，通过使用垂直缩放单元6并且通常使用所使用的存储器来进行扩展，压缩，帧速率转换，同步等的处理 在垂直方向进行缩放处理，最后，通过使用图像质量改善单元8执行色彩空间转换或反伽马处理，从而将图像信号转换为具有预定格式的图像信号S6。