公开(公告)号：EP0280932A1

公开(公告)日：1988-09-07

申请号：EP88101882.4

申请日：1988-02-09

申请人： HITACHI, LTD.

发明人： Nomura, Kunihiro Hitachi Saginuma-ryo 410 ,  Machida, Tetsuo ,  Yamada, Kazunari ,  Takekoshi, Toshio

IPC分类号： H04N7/01 ,  H04N3/22

CPC分类号： G06T3/4007 ,  H04N7/0105 ,  H04N7/012 ,  H04N7/0135

摘要： Lower resolution video signals (10) having alternating odd fields (12) and even fields (14) are stored in an odd line memory (20A) and an even line (20B), respectively. An interpolator (22) interpolates adjacent odd and even lines. A selector (24) cyclically selects odd, even, and interpolated lines in a pre-selected pattern. By selecting even, odd, and interpolated lines, the number of lines per picture is increased to produce a higher resolution video signal (30).

摘要翻译： 较低分辨率的视频信号（10）具有交替的奇数场（12）和偶数场（14）被存储在奇数行存储器（20A）和偶数行（20B）表示。 内插器（22）内插的相邻奇数和偶数行。 选择器（24）循环地选择奇数，偶数和内插在一个预先选定的图案线条。 通过选择偶数，奇数，并且内插的行，每图象行的数目增加，以产生更高分辨率的视频信号（30）。

公开(公告)号：EP0093429A3

公开(公告)日：1986-07-30

申请号：EP83104227

申请日：1983-04-29

申请人： HITACHI, LTD.

发明人： Tabata, Kuniaki ,  Machida, Tetsuo ,  Takeda, Haruo ,  Takada, Naoki ,  Okada, Yasuyuki

IPC分类号： G06F15/20

CPC分类号： G06T3/40 ,  H04N1/3935

摘要： Method of and apparatus for converting a first two-dimensional image on first column direction and row direction scales (A, B) to a second two-dimensional image on second column direction and row direction scales (a, b) at a high speed, in which use is made of the periodicity of the positional relation between the image elements (P xm Y n ) of the first image arranged in matrix and having various data values and the image elements (Q mn ) of the second image arranged in matrix and having various data values to determine, for each one of the second image elements, four second image elements (P xm Y n , P xm+1Yn , P xmYn +1, P xm+1Yn+1) lying on the intersections between two adjacent rows (X m , Y m +1) and two adjacent columns (Y n , Y n +1) in the first image element matrix which rows and columns surround the second image element and constitute a reference frame (C mn ) for the second image element, and in which the data value for each second image element is calculated on the basis of the data values of the four first image elements associated with the first image element and the vertical and horizontal coordinates within the reference frame. Both of the above-mentioned periodicity and the coordinates are defined in terms of the ratios (A/a, B/b) between the first and second scales for the first and second two-dimensional images, i.e. magnifications.

公开(公告)号：EP0093429B1

公开(公告)日：1990-11-28

申请号：EP83104227.0

申请日：1983-04-29

申请人： HITACHI, LTD.

发明人： Tabata, Kuniaki ,  Machida, Tetsuo ,  Takeda, Haruo ,  Takada, Naoki ,  Okada, Yasuyuki

IPC分类号： G06F15/62 ,  H04N1/393

CPC分类号： G06T3/40 ,  H04N1/3935

公开(公告)号：EP0093429A2

公开(公告)日：1983-11-09

申请号：EP83104227.0

申请日：1983-04-29

申请人： HITACHI, LTD.

发明人： Tabata, Kuniaki ,  Machida, Tetsuo ,  Takeda, Haruo ,  Takada, Naoki ,  Okada, Yasuyuki

IPC分类号： G06F15/62 ,  H04N1/393

CPC分类号： G06T3/40 ,  H04N1/3935

摘要： Method of and apparatus for converting a first two-dimensional image on first column direction and row direction scales (A, B) to a second two-dimensional image on second column direction and row direction scales (a, b) at a high speed, in which use is made of the periodicity of the positional relation between the image elements (P xm Y n ) of the first image arranged in matrix and having various data values and the image elements (Q mn ) of the second image arranged in matrix and having various data values to determine, for each one of the second image elements, four second image elements (P xm Y n , P xm+1Yn , P xmYn +1, P xm+1Yn+1) lying on the intersections between two adjacent rows (X m , Y m +1) and two adjacent columns (Y n , Y n +1) in the first image element matrix which rows and columns surround the second image element and constitute a reference frame (C mn ) for the second image element, and in which the data value for each second image element is calculated on the basis of the data values of the four first image elements associated with the first image element and the vertical and horizontal coordinates within the reference frame. Both of the above-mentioned periodicity and the coordinates are defined in terms of the ratios (A/a, B/b) between the first and second scales for the first and second two-dimensional images, i.e. magnifications.

公开(公告)号：EP0202671B1

公开(公告)日：1996-08-14

申请号：EP86106907.8

申请日：1986-05-21

申请人： HITACHI, LTD.

发明人： Takeda, Haruo ,  Tabata, Kuniaki ,  Machida, Tetsuo ,  Hino, Masatoshi ,  Nomura, Kunihiro

IPC分类号： G06F17/40

CPC分类号： H04N1/32112 ,  G06F17/30017 ,  G06F17/30265 ,  G06K9/00456 ,  H04N2201/3245 ,  H04N2201/3277

公开(公告)号：EP0280932B1

公开(公告)日：1992-11-19

申请号：EP88101882.4

申请日：1988-02-09

申请人： HITACHI, LTD.

发明人： Nomura, Kunihiro Hitachi Saginuma-ryo 410 ,  Machida, Tetsuo ,  Yamada, Kazunari ,  Takekoshi, Toshio

IPC分类号： H04N7/01 ,  H04N3/22

CPC分类号： G06T3/4007 ,  H04N7/0105 ,  H04N7/012 ,  H04N7/0135

公开(公告)号：EP0202671A3

公开(公告)日：1989-10-11

申请号：EP86106907.8

申请日：1986-05-21

申请人： HITACHI, LTD.

发明人： Takeda, Haruo ,  Tabata, Kuniaki ,  Machida, Tetsuo ,  Hino, Masatoshi ,  Nomura, Kunihiro

IPC分类号： G06F17/40

CPC分类号： H04N1/32112 ,  G06F17/30017 ,  G06F17/30265 ,  G06K9/00456 ,  H04N2201/3245 ,  H04N2201/3277

摘要： In order to utilize memo data written by hand at the time of retrieving the document, the original document image data is stored and, thereafter, a document image data with memo is separately input, the document mage data with memo being comprised of the original document image onto which is additionally written memo data by hand. The position of the document image data with memo is then brought into alignment with the original document image data and is collated to extract only those memo data written by hand. Then the kind of memo is discriminated, the process is effected depending upon the kind of memo, and the memo data is stored in the secondary data file for retrieval. To retrieve the document, the memo data of a plurality of documents are read out from the secondary data file depending upon the kind of memo that is designated, and are displayed as a look-up table. If the operator designates any one of them, the image of the corresponding original document is read out from the original document image file and is displayed.

公开(公告)号：EP0202671A2

公开(公告)日：1986-11-26

申请号：EP86106907.8

申请日：1986-05-21

申请人： HITACHI, LTD.

发明人： Takeda, Haruo ,  Tabata, Kuniaki ,  Machida, Tetsuo ,  Hino, Masatoshi ,  Nomura, Kunihiro

IPC分类号： G06F17/40

CPC分类号： H04N1/32112 ,  G06F17/30017 ,  G06F17/30265 ,  G06K9/00456 ,  H04N2201/3245 ,  H04N2201/3277

摘要： In order to utilize memo data written by hand at the time of retrieving the document, the original document image data is stored and, thereafter, a document image data with memo is separately input, the document mage data with memo being comprised of the original document image onto which is additionally written memo data by hand. The position of the document image data with memo is then brought into alignment with the original document image data and is collated to extract only those memo data written by hand. Then the kind of memo is discriminated, the process is effected depending upon the kind of memo, and the memo data is stored in the secondary data file for retrieval. To retrieve the document, the memo data of a plurality of documents are read out from the secondary data file depending upon the kind of memo that is designated, and are displayed as a look-up table. If the operator designates any one of them, the image of the corresponding original document is read out from the original document image file and is displayed.