公开(公告)号：JP2005151133A

公开(公告)日：2005-06-09

申请号：JP2003385225

申请日：2003-11-14

Applicant: Sony Corp ,  ソニー株式会社

Inventor： ONO TAKESHI ,  SOMEYA IKUO

IPC: H04N7/01

Abstract: PROBLEM TO BE SOLVED: To reduce a circuit scale by reducing the capacity of a storage element in the case of converting an interlace signal into a progressive signal. SOLUTION: A motion information acquisition circuit 104 acquires frame motion information M0FM of a present field by the unit of a pixel by using a picture signal V0 of the present field and a picture signal V2 preceding by two fields. A motion information acquisition circuit 105 acquires frame motion information MB0FM of the present field by the unit of a block by using the picture signals V0 and V2, and stores it in the storage element 106. On the basis of the frame motion information M0FM of the present field and frame motion information MB1FM preceding by one field from the storage element 106, a motion judgment circuit 108 obtains motion information MV of an interpolation position, and obtains the coefficient α of a value corresponding to this motion information MV. An interpolation arithmetic circuit 109 mixes pixel data around an interpolation position of the picture signal VO and pixel data around an interpolation position of a picture signal V1 in a mixing ratio corresponding to the value of the coefficient α to obtain data at the interpolation position. COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：通过在将交错信号转换为渐进信号的情况下减小存储元件的容量来减小电路规模。 解决方案：运动信息获取电路104通过使用当前场的图像信号V0和两个场之前的图像信号V2来获取像素单位的当前场的帧运动信息M0FM。 运动信息获取电路105通过使用图像信号V0和V2通过块的单位获取当前场的帧运动信息MB0FM，并将其存储在存储元件106中。基于帧的运动信息M0FM 运动判断电路108从存储元件106输出一场以前的场和帧运动信息MB1FM，获得插值位置的运动信息MV，并获得与该运动信息MV对应的值的系数α。 内插算术电路109将图像信号VO的内插位置周围的像素数据和与图像信号V1的内插位置对应的像素数据以与系数α的值对应的混合比混合，得到插补位置的数据。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：JP2005150997A

公开(公告)日：2005-06-09

申请号：JP2003383381

申请日：2003-11-13

Applicant: Sony Corp ,  ソニー株式会社

Inventor： SOMEYA IKUO

IPC: H04N7/01

Abstract: PROBLEM TO BE SOLVED: To obtain an interlace image with high image quality in format conversion for converting the number of lines of the interlace image. SOLUTION: A still pixel interpolation circuit 21 converts an input image of 960i into an image of 960p and supplies the converted image to an interpolation circuit 52. The interpolation circuit 52 converts the image of 960p at a prescribed conversion ratio and outputs an image of 1024i obtained as a result to a composite circuit 55. Further, the interpolation circuit 51 converts the number of pixels of the input image of 960i at a conversion ratio twice the prescribed conversion ratio and outputs an image of 1024i obtained as a result to the composite circuit 55. The composite circuit 55 composes pixels composing the image of 1024i supplied from the interpolation circuit 52 with pixels composing the image of 1024i supplied from the interpolation circuit 51 to produce an output image of 1024i. The image conversion apparatus or the like is applicable to image processing apparatuses for carrying out format conversion for converting the number of lines or the like of an interlace image. COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：为了获得用于转换交错图像的行数的格式转换，获得具有高图像质量的隔行扫描图像。 解决方案：静态像素插值电路21将960i的输入图像转换为960p的图像，并将转换的图像提供给内插电路52.插值电路52以规定的转换比转换960p的图像，并输出 另外，内插电路51将960i的输入图像的像素数以转换比转换成规定的转换比的两倍，并输出得到的1024i的图像作为结果， 复合电路55组成由内插电路52提供的构成1024i的图像的像素，构成从内插电路51提供的1024i的图像的像素，以产生1024i的输出图像。 图像转换装置等可应用于用于进行用于转换交错图像的行数等的格式转换的图像处理装置。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：JP2005027195A

公开(公告)日：2005-01-27

申请号：JP2003192373

申请日：2003-07-04

Applicant: Sony Corp ,  ソニー株式会社

Inventor： UEKI NOBUO ,  KONDO MAKOTO ,  KOMODA MASAHIRO ,  SOMEYA IKUO

IPC: G09G3/36 ,  G09G3/20 ,  H04N5/66

Abstract: PROBLEM TO BE SOLVED: To convert a video signal to the video signal by which video can be smoothly varied corresponding to the fluctuations of an input vertical synchronous signal.
SOLUTION: The conversion of the video signal can be realized by providing the following parts to a video signal conversion device, namely, a phase difference detecting part 13 which detects the phase difference between the input vertical synchronous signal being a vertical synchronous signal of an input video signal and an output vertical synchronous signal; a discriminating part 14 which discriminates whether to increase or to reduce the number of scanning lines of the output video signal determined by the frequency of the output vertical synchronous signal on the basis of the detected phase difference; and a synchronous signal generating part 15 which generates the output vertical synchronous signal by adjusting the frequency of the output vertical synchronous signal, so as to increase or to reduce the number of the scanning lines of the output video signal corresponding to the discrimination result.
COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：将视频信号转换成视频信号，视频信号可以根据输入垂直同步信号的波动而平滑地变化。 解决方案：可以通过向视频信号转换装置提供以下部分来实现视频信号的转换，即相位差检测部分13，其检测作为垂直同步信号的输入垂直同步信号之间的相位差 输入视频信号和输出垂直同步信号; 识别部分14，其基于检测到的相位差鉴别是否增加或减少由输出垂直同步信号的频率确定的输出视频信号的扫描线数; 以及通过调整输出垂直同步信号的频率来产生输出垂直同步信号的同步信号产生部分15，以便增加或减少对应于鉴别结果的输出视频信号的扫描线数量。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：JP2004266775A

公开(公告)日：2004-09-24

申请号：JP2003057638

申请日：2003-03-04

Applicant: Sony Corp ,  ソニー株式会社

Inventor： KOMODA MASAHIRO ,  SOMEYA IKUO

IPC: G06T5/20 ,  G09G5/00 ,  H04N5/208

Abstract: PROBLEM TO BE SOLVED: To provide an image processing apparatus for enhancing the image quality of an edge part when enhancement processing or the like is applied to the edge part. SOLUTION: A level of a flat part close to an edge part of an image signal V1 after enhancement processing is changed. The image processing apparatus detects a maximum value MAX and a minimum value MIN for a plurality of pixel data of an image signal V2 before the enhancement processing located in the vicinity of a target position in the image signal V1. A waveform discrimination part 158 discriminates a degree of complicatedness of the waveform of the image signal V2 on the basis of a plurality of the pixel data of the image signal V2 located in the vicinity of the target position in the image signal V1 to obtain a discrimination result α. The flat part close to the edge part provides a small discrimination result α. When a value x of the pixel data at the target position in the image signal V1 satisfies a relation of x>MAX or x COPYRIGHT: (C)2004,JPO&NCIPI

公开(公告)号：JP2003069959A

公开(公告)日：2003-03-07

申请号：JP2002166105

申请日：2002-06-06

Applicant: Sony Corp ,  ソニー株式会社

Inventor： SOMEYA IKUO

IPC: H04N7/01

CPC classification number: H04N7/0125 ,  H04N7/0105 ,  H04N7/012 ,  H04N7/0135

Abstract: PROBLEM TO BE SOLVED: To display an image with high image quality.
SOLUTION: A double-rate signal VDU achieved by subjecting a video signal to double-rate conversion is supplied to a scan line number converter 103. In the converter, the portion of the effective scan lines of the double-rate signal is written into a frame memory 104 on the basis of a signal achieved by multiplying horizontal and vertical synchronous signals based on the double-rate signal. In the effective scan line section of HDTV signal, the video signal written in the frame memory 104 is read. Out of the effective scan line section of the HDTV signal, a pedestal level signal is read from a ROM 111, thereby achieving HDTV signal whose vertical scan line number is equal to 1,125 lines. Accordingly, the HDTV signal VHD
3 suffers no degradation because the video signal VDU in the section of 960 effective scan lines of the double-rate signal is not interpolated.
COPYRIGHT: (C)2003,JPO

Abstract translation: 要解决的问题：显示具有高图像质量的图像。 解决方案：通过对视频信号进行双倍速率转换而实现的双速率信号VDU被提供给扫描线数转换器103.在转换器中，将双速率信号的有效扫描线的一部分写入 基于通过基于双速率信号乘以水平和垂直同步信号而获得的信号的帧存储器104。 在HDTV信号的有效扫描线部分中，读取写入帧存储器104的视频信号。 在HDTV信号的有效扫描线部分之外，从ROM 111读取基准电平信号，从而实现垂直扫描线数等于1,125线的HDTV信号。 因此，由于双倍速率信号的960个有效扫描线的部分中的视频信号VDU没有被内插，所以HDTV信号VHD3不会降级。

公开(公告)号：JP2000137469A

公开(公告)日：2000-05-16

申请号：JP31251698

申请日：1998-11-02

Applicant: SONY CORP

Inventor： SOMEYA IKUO ,  KOMODA MASAHIRO

IPC: H04N5/262 ,  G06T3/40 ,  G06T5/20 ,  G09G3/20 ,  G09G5/00 ,  G09G5/36 ,  G09G5/373 ,  G09G5/391 ,  H04N7/01

Abstract: PROBLEM TO BE SOLVED: To provide a pixel number conversion device improved in picture quality at the time of converting the number of pixels. SOLUTION: An enlargement interpolation means 10 generates an enlargement interpolation picture signal Im by enlarging and interpolating a picture signal I. A high frequency component extraction means 21 extracts high frequency components from the enlargement interpolation picture signal Im. A high frequency emphasis means 22 adds the high frequency components, which have been changed in the high frequency characteristic according to an enlargement ratio, to the enlargement interpolation picture signal Im, and outputs it by emphasizing the high frequency.

公开(公告)号：JPH11355608A

公开(公告)日：1999-12-24

申请号：JP15869298

申请日：1998-06-08

Applicant: SONY CORP

Inventor： SOMEYA IKUO ,  KOMODA MASAHIRO ,  UEKI NOBUO

IPC: H04N5/205

Abstract: PROBLEM TO BE SOLVED: To emphasize resolution without sense of incongruity by correcting the signal level of a signal for resolution correction in accordance with the signal level of a video signal. SOLUTION: A control circuit 42 controls the gain of a variable gain amplifier circuit 41 in accordance with an output signal of a low-pass filter 43. The circuit 41 amplifies a high pass component extracted from a signal level of an output signal of the filter 43 with set gain by a bandpass filter 2. An amplitude limitation circuit 3 performs amplitude limitation of the amplified high pass component and outputs signal for resolution correction. An adder 4 adds the signal for resolution correction to the original luminance signal Y1. An enhancement circuit 40 varies the signal level of the signal for resolution correction in accordance with the signal level of a luminance signal so as to correspond to nonlinear characteristic of a cathode-ray tube and varies the correction quantity of resolution. That is, the correction quantity of resolution is reduced more at a part, which has a high signal level of a luminance signal and consists of parts where an image is bright, than at a part which has a low signal level.

公开(公告)号：JPH11136542A

公开(公告)日：1999-05-21

申请号：JP30179497

申请日：1997-11-04

Applicant: SONY CORP

Inventor： SOMEYA IKUO ,  KOMODA MASAHIRO ,  UTSUNOMIYA HIROSHI

IPC: H04N5/21 ,  H04N5/253

Abstract: PROBLEM TO BE SOLVED: To provide a control system of a noise reduction device, which can display the video of high quality without dropping an S/N for a video signal based on a signal source where a pseudo scene change is generated like a cinema film. SOLUTION: A scene change judgment unit 2 judges whether a scene change code by the pseudo scene change exists or not in addition to a scene change code by the scene change of the video in the signal source. When the pseudo scene chance does not exist, a switch 13 is changed over to a switch terminal t2-side by a control signal Fc from a driver 18 with the output signal of the scene change judgment unit 2 and the tailing of an after image by a noise reduction device 1 can be prevented. When the pseudo scene change exists, the switch 13 is held to a switch terminal t1-side with the control signal Fc and the S/N is prevented from deteriorating and the quality of the video is prevented from deteriorating based on the interruption of the noise reduction operation of the noise reduction device 1 at the time of the pseudo scene change.

公开(公告)号：JPH11112838A

公开(公告)日：1999-04-23

申请号：JP27472497

申请日：1997-10-07

Applicant: SONY CORP

Inventor： SOMEYA IKUO ,  KOMODA MASAHIRO ,  UTSUNOMIYA HIROSHI

IPC: H04N5/21

Abstract: PROBLEM TO BE SOLVED: To suppress the occurrence of flickering in an image processor for applying an enhancement and/or noise reduction processing corresponding to noise level to video signals. SOLUTION: A noise level detection circuit 10 generates noise level signals corresponding to the noise level included in input video signals. Hysterisis characteristics are imparted to the noise level signals in a hysterisis part 40 and they are supplied to an enhancement processing part 20 and a noise reduction processing part 30. The enhancement processing part 20 is for executing a high band emphasis (enhancement) processing to the input video signals and the strength of the enhancement processing is changed corresponding to the noise level signals to which the hysterisis characteristics are imparted. The noise reduction processing part 30 is for executing the noise reduction processing to the video signals and the strength of the noise reduction processing is also controlled corresponding to the noise level signals to which the hysterisis characteristics are imparted.

公开(公告)号：JPH10341416A

公开(公告)日：1998-12-22

申请号：JP14820397

申请日：1997-06-05

Applicant: SONY CORP

Inventor： SOMEYA IKUO ,  KOMODA MASAHIRO ,  UTSUNOMIYA HIROSHI

IPC: H04N7/015

Abstract: PROBLEM TO BE SOLVED: To prevent the increase of a circuit scale without changing characteristics in the case of dividing the inter-frame difference signals of the HDTV signals of a MUSE system into a high band including return components and a low band not including the return components and processing them. SOLUTION: Low-pass filters 9 and 10 are cascade connected, and the output of the cascade connection of the low-pass filters 9 and 10 and the output between the stages of the low-pass filter 9 and the low-pass filter 10 are subtracted in a subtraction circuit 11. The low-pass filter 9 is to be provided with the characteristic of passing through the area of the transmission band of MUSE signals and the low-pass filter 10 is to be provided with to the characteristic of passing through an area corresponding to the low band part of the MUSE signals not including the return components. By the cascade connection of the low-pass filters 9 and 10, the components of the area corresponding to the low band part of the inter-frame difference signal of the MUSE signals are extracted and the high band components are extracted by the output of the subtraction circuit 11.