公开(公告)号：EP0883298A3

公开(公告)日：2000-03-29

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).

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）。

公开(公告)号：EP0837601B1

公开(公告)日：2004-12-22

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

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。

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。