公开(公告)号：EP1335597A4

公开(公告)日：2006-05-03

申请号：EP01982778

申请日：2001-11-14

申请人： SONY CORP

发明人： KONDO TETSUJIRO ,  TATEHIRA YASUSHI ,  HIRAIZUMI KEI ,  ASAKURA NOBUYUKI ,  MORIMURA TAKUO ,  NIITSUMA WATARU ,  AYATA TAKAHIDE

IPC分类号： H04N7/01

CPC分类号： G06T3/40 ,  H04N7/0125 ,  H04N7/0137 ,  H04N7/0145

摘要： An information signal processing device which is preferable applied to conversion, e. g., from an SD signal to an HD signal. Pixel data on a tap selectively taken out of the SD signal and corresponding to the position of interest of the HD signal are used to acquire the class (CL) to which the data on the pixel in the position of interest belongs. A coefficient creating circuit (136) creates coefficient data (Wi) on the coefficients of the classes on the basis of the class coefficient type data and the values of image quality adjusting parameters (h, v) by the operation the user. An arithmetic circuit (127) employs an estimation formula to determine data on the pixel in the position of interest of the HD signal by using the data (xi) on the tap selectively taken from the SD signal by a tap selecting circuit (121) and corresponding to the position of interest of the HD signal and the coefficient data (Wi) read out of a memory (134) and corresponding to the class (CL). The image quality can be freely adjusted on a plurality of axes.

公开(公告)号：EP1587058A4

公开(公告)日：2012-05-30

申请号：EP03778899

申请日：2003-12-12

申请人： SONY CORP

发明人： KONDO TETSUJIRO ,  ASAKURA NOBUYUKI ,  NISHIKATA TAKEHARU ,  MORIMURA TAKUO ,  HIRAIZUMI KEI ,  NAGANO HIROSUKE ,  YAMAMOTO SAKON

IPC分类号： G09G5/00 ,  G06T3/40 ,  G09G3/20 ,  G09G5/36 ,  H04N7/01

CPC分类号： G06T3/40 ,  G09G2320/103 ,  G09G2340/0414 ,  G09G2340/0421 ,  H04N7/0145

公开(公告)号：EP1267322A4

公开(公告)日：2007-10-31

申请号：EP01272329

申请日：2001-12-26

申请人： SONY CORP

发明人： KONDO TETSUJIRO ,  TATEHIRA YASUSHI ,  MORIMURA TAKUO ,  ASAKURA NOBUYUKI ,  NIITSUMA WATARU ,  HIRAIZUMI KEI ,  AYATA TAKAHIDE

IPC分类号： H04N7/01 ,  G06T3/40 ,  G09G5/00 ,  G09G5/391

CPC分类号： H04N7/0137 ,  G06T3/40 ,  G09G2340/0407 ,  H04N7/0125 ,  H04N7/0145

摘要： An information signal processing device preferably used for converting the format of an image signal or the image size. An input image signal Vin (525i signal) is converted to an output image signal Vout (such as a 1080i signal, an XGA signal, or a 525i signal for producing a display image of different magnification). A class code CL is determined on the basis of tap data selectively extracted from the input image signal Vin and corresponding to each pixel (pixel in the position of interest) in a unit pixel block constituting the output image signal Vout. A coefficient creating circuit (136) creates coefficient data on each class used when pixel data on the position of interest is created by calculation according to the coefficient type data on each class and phase information h, v on the position of interest created by a phase information creating circuit (139). An arithmetic circuit (127) creates pixel data y1 to yp on the position of interest by an estimation formula by using tap data xi corresponding to the position of interest and coefficient data Wi corresponding to the class code CL.

公开(公告)号：EP1335596A4

公开(公告)日：2006-04-12

申请号：EP01982777

申请日：2001-11-14

申请人： SONY CORP

发明人： KONDO TETSUJIRO ,  TATEHIRA YASUSHI ,  HIRAIZUMI KEI ,  ASAKURA NOBUYUKI ,  MORIMURA TAKUO ,  NIITSUMA WATARU ,  AYATA TAKAHIDE

IPC分类号： H04N5/44 ,  H04N7/01

CPC分类号： G06T3/40 ,  G06T3/4007 ,  H04N7/012 ,  H04N7/0125 ,  H04N7/0137 ,  H04N7/0145

摘要： An information signal processing device which is preferably applied to conversion, e. g., from an SD signal to an HD signal. Pixel data on a tap selectively taken out of the SD signal and corresponding to the position of interest of the HD signal are used to acquire the class (CL) to which the data on the pixel in the position of interest belongs. A coefficient creating circuit (136) creates data (Wi) on the coefficients of the classes on the basis of the class coefficient type data and the values of image quality adjusting parameters (h, v) by the operation of the user. An arithmetic circuit (127) employs an estimation formula to determine data on the pixel in the position of interest of the HD signal by using the data (xi) on the tap selectively taken from the SD signal by a tap selecting circuit (121) and corresponding to the position of interest of the HD signal and the coefficient data (Wi) read out of a memory (134) and corresponding to the class (CL). Coefficient data (Wi) corresponding to the value of any parameter can be produced to save the capacity of a memory.

公开(公告)号：EP1355494A4

公开(公告)日：2006-03-29

申请号：EP02715863

申请日：2002-01-22

申请人： SONY CORP

发明人： KONDO TETSUJIRO ,  NIITSUMA WATARU ,  TATEHIRA YASUSHI ,  ASAKURA NOBUYUKI ,  MORIMURA TAKUO ,  HIRAIZUMI KEI ,  AYATA TAKAHIDE

IPC分类号： H04N7/01

CPC分类号： H04N7/0145 ,  G09G2340/0407 ,  H04N7/0125 ,  H04N7/0137

摘要： An information signal processing device which is preferably used for converting the format or image size of an image signal. An input image signal (Vin) is converted into an output image signal (Vout) of a different format or image size. A class code (CL) is acquired from the data on the tap corresponding to each pixel (a pixel of interest) in a unit pixel block constructing the signal (Vout), extracted from the signal (Vin). A product-sum device (137) generates coefficient data (ai0 to ai8) of a generation formula of the upper layer of each class during a vertical blanking period by using a generation formula of the lower layer and using coefficient kind data (bij0 to bij8) of each class and resolution information (g, f), and acquires coefficient data (Wi) of an estimation formula during a vertical effective scanning period by using a generation formula of the upper layer and using the coefficient data (ai0 to ai8) corresponding to the code (CL) and phase information (h, v). An operation circuit (127) acquires data (y) of the pixel of interest by using an estimation formula and using data (xi) on the tap corresponding to the pixel of interest and coefficient data (Wi) from the product-sum device (137).

公开(公告)号：EP1353320A4

公开(公告)日：2005-10-05

申请号：EP01272328

申请日：2001-12-26

申请人： SONY CORP

发明人： KONDO TETSUJIRO ,  NIITSUMA WATARU ,  TATEHIRA YASUSHI ,  ASAKURA NOBUYUKI ,  MORIMURA TAKUO ,  HIRAIZUMI KEI ,  AYATA TAKAHIDE

IPC分类号： G06T9/00 ,  G09G5/00 ,  G09G5/391 ,  H04N7/01 ,  G06T3/40

CPC分类号： H04N7/0137 ,  G06T9/005 ,  G09G2340/0407 ,  H04N7/0125 ,  H04N7/0145

摘要： An information signal processing device preferably used for converting, e.g., an SD signal to an HD signal. A space class and a motion class are extracted from pixel data concerning a tap selectively extracted from an SD signal and corresponding to the position of interest of an HD signal. Coefficient type data and item selection information on each class are stored in a memory bank (135). A coefficient creating circuit (136) creates coefficient data Wi on each class according to the coefficient type data and image quality adjustment parameters h, v by using a creation formula including an item selected according to the item selection information. An arithmetic circuit (127) creates pixel data on the position of interest of the HD signal from prediction tap data xi and the coefficient data Wi by using an estimation formula. Without degrading the accuracy of the arithmetic operation, the amount of coefficient type data and the scale of the arithmetic operation unit can be reduced, and the approximation accuracy of the coefficient curved surface is improved.