WO2011024832A1 - 映像信号処理装置 - Google Patents
映像信号処理装置 Download PDFInfo
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- WO2011024832A1 WO2011024832A1 PCT/JP2010/064331 JP2010064331W WO2011024832A1 WO 2011024832 A1 WO2011024832 A1 WO 2011024832A1 JP 2010064331 W JP2010064331 W JP 2010064331W WO 2011024832 A1 WO2011024832 A1 WO 2011024832A1
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- 238000012545 processing Methods 0.000 title claims abstract description 27
- 238000012937 correction Methods 0.000 claims abstract description 59
- 239000013598 vector Substances 0.000 claims abstract description 47
- 238000001514 detection method Methods 0.000 claims abstract description 25
- 238000006243 chemical reaction Methods 0.000 claims description 18
- 238000012935 Averaging Methods 0.000 abstract description 12
- 230000014759 maintenance of location Effects 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 3
- 206010047571 Visual impairment Diseases 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
- H04N7/0127—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level by changing the field or frame frequency of the incoming video signal, e.g. frame rate converter
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T1/00—General purpose image data processing
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/14—Picture signal circuitry for video frequency region
- H04N5/20—Circuitry for controlling amplitude response
- H04N5/202—Gamma control
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
- H04N7/0135—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level involving interpolation processes
- H04N7/014—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level involving interpolation processes involving the use of motion vectors
Definitions
- the present invention relates to a video signal processing apparatus for interpolating interpolated frames between real frames of a video signal to increase the number of frames and converting a frame rate (frame frequency), and in particular, processes for both inverse gamma correction and gamma correction.
- the present invention relates to a video signal processing device that converts the frame rate by applying the above.
- an interpolation frame is interpolated between the actual frames of the video signal to increase the number of frames. For example, the frame rate at a vertical frequency of 60 Hz is converted to a double vertical frequency of 120 Hz or higher. It is done to display.
- a motion vector of an image is detected, each interpolation pixel is generated using the motion vector, and an interpolation frame that is interpolated between actual frames is generated.
- the image display apparatus has a non-linear characteristic R1 having a downward convex relationship as shown in FIG. Accordingly, a video signal of a television signal transmitted as a broadcast wave signal or a video signal recorded on a recording medium such as an optical disc is created on the assumption that the image display device has the characteristic R1 shown in FIG.
- the signal is previously subjected to so-called gamma correction, which is an upward convex non-linear characteristic R2 as shown in FIG.
- the image display apparatus includes an inverse gamma correction unit for making the video signal subjected to gamma correction linear characteristics, and a gamma correction unit for performing gamma correction again before the display unit.
- Patent Document 1 describes an image display device including an inverse gamma correction unit, a gamma correction unit, and a frame rate conversion circuit.
- an inverse gamma correction unit is provided at the input stage of the video signal processing device, which is the front stage of the video modulation unit corresponding to the frame rate conversion circuit, and at the rear stage of the video modulation unit.
- a gamma correction unit is provided at the output stage of the video signal processing apparatus.
- the present invention has been made in view of such a problem, and provides a video signal processing apparatus capable of minimizing the circuit portion that performs signal processing with high bit accuracy and minimizing the increase in circuit scale.
- the purpose is to do.
- the present invention uses the pixel data in a plurality of actual frames in an input video signal to form an interpolation frame that is interpolated between the plurality of actual frames.
- a motion vector detection unit (2) for detecting a motion vector necessary for generating pixel data, and selecting pixel data in the plurality of real frames for generating the interpolation pixel data according to the motion vector
- the pixel data selection unit (311, 312, 321, 322, 331, 332) to output and the pixel data in the plurality of real frames selected by the pixel data selection unit are used to generate the interpolation pixel data.
- An interpolation pixel generation unit (318, 328, 338) is arranged between the pixel data selection unit and the interpolation pixel generation unit.
- a reverse gamma correction unit (314, 315, 324, 325, 334, 335) for performing a reverse gamma correction for correcting the gamma characteristic applied to the input video signal in advance for the output pixel data.
- a gamma correction unit (319, 329, 339) that is arranged after the interpolation pixel generation unit and performs gamma correction on the interpolation pixel data output from the interpolation pixel generation unit.
- a video signal processing apparatus is provided.
- a shift amount conversion unit (313, 323, 333) that converts the motion vector into a shift amount with respect to pixel data on the same horizontal and vertical positions as the interpolation pixel data in the plurality of real frames;
- the pixel data selection unit may select and output pixel data in the plurality of actual frames based on the shift amount.
- the video signal processing apparatus of the present invention it is possible to minimize the number of circuit portions that perform signal processing with high bit accuracy. Therefore, an increase in circuit scale can be suppressed as much as possible, and costs can be suppressed.
- FIG. 1 is a block diagram showing an embodiment of a video signal processing apparatus of the present invention.
- 2A and 2B are diagrams showing an example of a motion vector detection operation by the motion vector detection unit 2 in FIG.
- FIG. 3 is a diagram for explaining the operations of the data holding / selecting units 311 and 312 and the shift amount converting unit 313 in FIG.
- FIG. 4 is a diagram illustrating the relationship between the gradation level of the input signal and the display luminance in the image display apparatus.
- FIG. 5 is a diagram showing the characteristics of gamma correction applied to the video signal.
- FIG. 6 is a diagram showing a characteristic in which the relationship between the gradation level and the output gradation is linear.
- FIG. 1 is a block diagram showing an embodiment of a video signal processing apparatus of the present invention.
- 2A and 2B are diagrams showing an example of a motion vector detection operation by the motion vector detection unit 2 in FIG.
- FIG. 3 is a diagram for explaining the operations of the data holding
- FIG. 7 is a diagram showing characteristics of inverse gamma correction performed by the inverse gamma correction units 314 and 315 in FIG.
- FIGS. 8A and 8B are diagrams for explaining the operational effects of the inverse gamma correction units 314 and 315 and the gamma correction unit 319 in FIG.
- FIG. 9A is the first half of a block diagram showing another embodiment of the video signal processing apparatus of the present invention.
- FIG. 9B is the second half of the block diagram shown in FIG. 9A.
- each pixel data of the video signal Sin having a frame frequency of 60 Hz is sequentially input to the frame memory 1, the motion vector detection unit 2, the interpolation unit 31, and the time series conversion memory 4.
- the video signal Sin is previously subjected to gamma correction as shown in FIG.
- the frame memory 1 outputs the input pixel data with a delay of one frame.
- the current frame of the input video signal Sin is F0, and the frame one frame before the current frame output from the frame memory 1 is F1.
- the motion vector detection unit 2 uses, for example, a matching method to generate each interpolation pixel data of an interpolation frame to be interpolated between the current frame F0 and the frame F1, using the pixel data of the current frame F0 and the frame F1.
- the motion vector is detected.
- An example of a motion vector detection operation in the motion vector detection unit 2 will be described with reference to FIG. 2A and 2B show the motion vector detection operation for generating the interpolation pixel data Pfp0 on the interpolation frame Fp0.
- pixel data on the same horizontal line will be described.
- the solid white circles shown in FIGS. 2A and 2B indicate white pixel data, and the hatched circles indicate black pixel data.
- the pixel data Pf10 on the frame F1 at the same horizontal position as the interpolation pixel data Pfp0 is used as a reference. Then, the difference between the pixel data Pf10 and the pixel data Pf00 on the current frame F0 and a plurality of pixel data in a predetermined range located on the left and right of the pixel data Pf00 is obtained. The direction with the smallest difference is taken as the direction of the motion vector.
- FIG. 2B shows a case where the pixel data Pf00 on the frame F0 at the same horizontal position as the interpolation pixel data Pfp0 is used as a reference.
- the difference between the pixel data Pf00 and the pixel data Pf10 on the frame F1 and a plurality of pixel data in a predetermined range located on the left and right of the pixel data Pf10 is obtained.
- the direction with the smallest difference is taken as the direction of the motion vector.
- the motion vector detection unit 2 may detect a motion vector by the detection method shown in FIG. 2A or may detect a motion vector by the detection method shown in FIG. Further, a motion vector is detected by both detection methods of FIGS. 2A and 2B, and one of them is determined as a final motion vector, or by both detection methods of FIGS. 2A and 2B. A final motion vector may be generated based on the two detected motion vectors. Alternatively, a motion vector may be detected using a plurality of pixel data of three frames or more.
- the motion vector detection method in the motion vector detection unit 2 is not limited to the method described above, and is arbitrary.
- the pixel data input to the motion vector detection unit 2 does not have the linear characteristic R0 as shown in FIG. 6 but has the nonlinear characteristic R2 as shown in FIG.
- the difference in signal level between data and the actual difference in luminance due to the pair of pixel data do not necessarily match.
- the magnitude relationship of the difference between the pair of pixel data does not change between the characteristic R0 and the characteristic R2, it is not necessary to perform inverse gamma correction on the pixel data input to the motion vector detection unit 2.
- the interpolation unit 31 includes data holding / selection units (pixel data selection units) 311 and 312, a shift amount conversion unit 313, inverse gamma correction units 314 and 315, intermediate pixel generation units 316 and 317, and an average value unit 318 and a gamma correction unit 319.
- the data holding / selecting unit 311 holds a plurality of pixel data on the frame F0 required when generating the interpolated pixel data Pfp0 shown in FIGS. 2 (A) and 2 (B).
- the data holding / selecting unit 312 holds a plurality of pixel data on the frame F1 necessary for generating the interpolated pixel data Pfp0 shown in FIGS.
- the shift amount conversion unit 313 converts the motion vector MV supplied from the motion vector detection unit 2 into shift amounts SH0 and SH1 and supplies the converted data to the data holding / selection units 311 and 312.
- the shift amounts SH0 and SH1 generated by the shift amount conversion unit 313 will be described with reference to FIG.
- the shift amount conversion unit 313 shifts the pixel data Pf10 on the frame F1 by 0.5 pixels in the left direction.
- a shift amount SH1 for shifting is generated, and a shift amount SH0 for shifting pixel data Pf00 on the frame F0 rightward by 0.5 pixels is generated.
- FIG. 3 In the case of FIG.
- the virtual pixel data Pf1p01 indicated by the two-dot chain line on the frame F1 and the virtual pixel data Pf0p01 indicated by the two-dot chain line on the frame F0 are averaged. That's fine.
- the pixel data Pf1p01 and Pf0p01 do not actually exist. Therefore, if interpolated element data Pf1p01 is generated using pixel data Pf10 and pixel data Pf11 on the left side of this, and interpolated pixel data Pf0p01 is generated using pixel data Pf00 and the pixel data Pf01 on the right side of this. Good.
- each of the data holding / selecting units 311 and 312 is 1 required to generate the interpolated pixel data Pfp0 according to the input shift amounts SH0 and SH1 among the plurality of held pixel data.
- One or two pieces of pixel data are selected and output.
- the data holding / selecting unit 311 selects and outputs the pixel data Pf10 and Pf11
- the data holding / selecting unit 312 outputs the pixel data Pf00 and Pf01.
- the motion vector MV is a vector from the pixel data Pf11 to the pixel data Pf10
- the data holding / selecting units 311 and 312 may select and output the pixel data Pf11 and Pf01, respectively.
- the pixel data output from the data holding / selecting units 311 and 312 is input to the inverse gamma correction units 314 and 315.
- the inverse gamma correction units 314 and 315 perform reverse gamma correction of the characteristic R1 'as shown in FIG. 7 on the input pixel data having the characteristic R2 of FIG.
- a characteristic R1 'in FIG. 7 is equivalent to or similar to the characteristic R1 shown in FIG.
- the pixel data output from the inverse gamma correction units 314 and 315 has a linear characteristic R0 as shown in FIG.
- Pixel data output from the inverse gamma correction units 314 and 315 is input to the intermediate pixel generation units 316 and 317.
- the intermediate pixel generators 316 and 317 are for generating interpolated pixel data located between the pixel data when generating the interpolated pixel data Pfp0 as in the case of FIG.
- the intermediate pixel generation unit 316 generates interpolation pixel data Pf1p01
- the intermediate pixel generation unit 317 generates interpolation pixel data Pf0p01.
- the pair of interpolated pixel data output from the intermediate pixel generation units 316 and 317 is input to the averaging unit 318.
- the averaging unit 318 generates the interpolation pixel data Pfp0 by averaging the pair of input interpolation pixel data.
- the average value unit 318 is an interpolation pixel generation unit.
- the averaging unit 318 generates the interpolation pixel data Pfp0 by averaging the interpolation pixel data Pf1p01 and Pf0p01.
- intermediate pixel generation units 316 and 317 are necessary. If the detection accuracy of the motion vector in the motion vector detection unit 2 is lowered and the shift amounts SH0 and SH1 are in units of one pixel, the intermediate pixel generation units 316 and 317 are not necessary. Therefore, the intermediate pixel generation units 316 and 317 may be provided as necessary.
- Interpolated pixel data Pfp0 output from the averaging unit 318 is input to the gamma correction unit 319.
- the gamma correction unit 319 performs gamma correction of the characteristic R2 shown in FIG. 5 on the input interpolation pixel data Pfp0 and outputs the result.
- the interpolation unit 31 performs the inverse gamma correction of the characteristic R1 ′ on the pixel data of the video signal Sin on which the gamma correction of the characteristic R2 has been performed to obtain the linear characteristic R0, and then the interpolation pixel data Pfp0. After that, gamma correction of the characteristic R2 is performed to restore the original state.
- the pixel data of the frame F0 and the interpolation pixel data Pfp0 output from the interpolation unit 31 are sequentially input to the time series conversion memory 4.
- the time-series conversion memory 4 includes image data of a frame F0 that is an actual frame based on pixel data of a frame F0 that is sequentially input, and an image of an interpolation frame Fp0 that is an interpolation frame based on the interpolation pixel data Pfp0 that is sequentially input. Generate data. Both are alternately output at 120 Hz to output a video signal Sout having a frame frequency of 120 Hz.
- the reverse gamma correction units 314 and 315 and the gamma correction unit 319 have the configuration of FIG. 1 (FIG. 8B), and the reverse gamma correction units 314 and 315.
- FIG. 8A A visual difference on the screen from the configuration in which the gamma correction unit 319 is deleted (FIG. 8A) will be described.
- F0, Fp0, and F1 are the same as those in FIGS. 2 and 3
- F2 is an actual frame that is one frame before frame F1
- Fp1 is interpolated between frames F1 and F2. Interpolated frame.
- white pixel data has a luminance of 100%
- black pixel data has a luminance of 0%
- the line of sight has moved in the direction of a dashed arrow.
- the interpolation unit 32 includes data holding / selection units 321 and 322, a shift amount conversion unit 323, inverse gamma correction units 324 and 325, intermediate pixel generation units 326 and 327, and an average value Unit 328 and a gamma correction unit 329.
- the interpolation unit 33 includes a data holding / selection unit 331, 332, a shift amount conversion unit 333, an inverse gamma correction unit 334, 335, an intermediate pixel generation unit 336, 337, an averaging unit 338, and a gamma correction unit. 339.
- the time series conversion memory 40 sequentially outputs three interpolation frames generated based on the image data of the frame F0 and the interpolation pixel data output from the interpolation units 31 to 33 at 240 Hz, and has a frame frequency of 240 Hz.
- the signal Sout is output.
- only the intermediate pixel generation units 316, 317, 326, 327, 336, and 37 and the averaging units 318, 328, and 338 are required for high bit accuracy. It is. Accordingly, since the circuit portion that performs signal processing with high bit accuracy is minimized, an increase in the circuit scale can be suppressed as much as possible, and the cost can be suppressed.
- the video signal processing apparatus of the present invention it is possible to reduce the number of circuit portions that perform signal processing with high bit accuracy as much as possible. Therefore, an increase in circuit scale can be suppressed as much as possible, and costs can be suppressed.
- Motion vector detection unit 4 40 Time series conversion memory 31, 32, 33 Interpolation unit 311, 312, 321, 322, 331, 332 Data holding / selection unit (pixel data selection unit) 313, 323, 333 Shift amount conversion unit 314, 315, 324, 325, 334, 335 Inverse gamma correction unit 316, 317, 326, 327, 336, 337 Intermediate pixel generation unit 318, 328, 338 Average value unit (interpolation) Pixel generator) 319, 329, 339 Gamma correction unit
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Abstract
Description
2 動きベクトル検出部
4,40 時系列変換メモリ
31,32,33 補間部
311,312,321,322,331,332 データ保持・選択部(画素データ選択部)
313,323,333 シフト量変換部
314,315,324,325,334,335 逆ガンマ補正部
316,317,326,327,336,337 中間画素生成部
318,328,338 平均値化部(補間画素生成部)
319,329,339 ガンマ補正部
Claims (3)
- 入力された映像信号における複数の実フレーム内の画素データを用いて、前記複数の実フレーム間に内挿する補間フレームを構成する補間画素データを生成する際に必要な動きベクトルを検出する動きベクトル検出部と、
前記動きベクトルに応じて、前記補間画素データを生成するための前記複数の実フレーム内の画素データを選択して出力する画素データ選択部と、
前記画素データ選択部により選択した前記複数の実フレーム内の画素データを用いて前記補間画素データを生成する補間画素生成部と、
前記画素データ選択部と前記補間画素生成部との間に配置され、前記画素データ選択部より出力された画素データに対して、前記入力された映像信号に予め施されているガンマ特性を補正するための逆ガンマ補正を施す逆ガンマ補正部と、
前記補間画素生成部の後段に配置され、前記補間画素生成部より出力された前記補間画素データに対してガンマ補正を施すガンマ補正部と
を備えることを特徴とする映像信号処理装置。 - 前記逆ガンマ補正部と前記補間画素生成部との間に、実フレーム内の1ライン上で隣接する2つの画素間に位置する仮想的な補間画素データを生成する中間画素生成部を備え、
前記補間画素生成部は、前記仮想的な補間画素データを用いて前記補間画素データを生成する
ことを特徴とする請求項1記載の映像信号処理装置。 - 前記動きベクトルを、前記複数の実フレーム内における前記補間画素データと同一の水平及び垂直位置上の画素データに対するシフト量に変換するシフト量変換部を備え、
前記画素データ選択部は、前記シフト量に基づいて前記複数の実フレーム内の画素データを選択して出力する
ことを特徴とする請求項1または2に記載の映像信号処理装置。
Priority Applications (4)
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KR1020127007272A KR101361649B1 (ko) | 2009-08-28 | 2010-08-25 | 영상 신호 처리 장치 |
EP10811881.1A EP2472849A4 (en) | 2009-08-28 | 2010-08-25 | VIDEO SIGNAL PROCESSING DEVICE |
US13/392,401 US20120147261A1 (en) | 2009-08-28 | 2010-08-25 | Video signal processor |
CN2010800379395A CN102577346A (zh) | 2009-08-28 | 2010-08-25 | 影像信号处理装置 |
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JP2009197913A JP4656546B2 (ja) | 2009-08-28 | 2009-08-28 | 映像信号処理装置 |
JP2009-197913 | 2009-08-28 |
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US (1) | US20120147261A1 (ja) |
EP (1) | EP2472849A4 (ja) |
JP (1) | JP4656546B2 (ja) |
KR (1) | KR101361649B1 (ja) |
CN (1) | CN102577346A (ja) |
WO (1) | WO2011024832A1 (ja) |
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CN105306866A (zh) * | 2015-10-27 | 2016-02-03 | 青岛海信电器股份有限公司 | 帧率转换方法及装置 |
Citations (4)
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JPH0591369A (ja) * | 1991-09-26 | 1993-04-09 | Fujitsu Ltd | Museデコーダ用ノンリニヤエツジ信号生成装置 |
JPH09172621A (ja) * | 1995-12-20 | 1997-06-30 | Sony Corp | 圧縮高解像度ビデオ信号の補間装置および補間方法 |
WO2006068292A1 (ja) * | 2004-12-21 | 2006-06-29 | Sony Corporation | 画像処理装置と画像処理方法および画像処理プログラム |
JP2007156412A (ja) | 2005-12-08 | 2007-06-21 | Lg Phillips Lcd Co Ltd | 液晶表示装置の駆動装置及び駆動方法 |
Family Cites Families (3)
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JP2005321775A (ja) | 2004-05-01 | 2005-11-17 | Samsung Electronics Co Ltd | ディスプレー装置 |
JP4872508B2 (ja) | 2006-07-28 | 2012-02-08 | ソニー株式会社 | 画像処理装置および画像処理方法、並びにプログラム |
CN101543064B (zh) * | 2007-02-20 | 2013-07-03 | 索尼株式会社 | 图像显示装置 |
-
2009
- 2009-08-28 JP JP2009197913A patent/JP4656546B2/ja active Active
-
2010
- 2010-08-25 US US13/392,401 patent/US20120147261A1/en not_active Abandoned
- 2010-08-25 KR KR1020127007272A patent/KR101361649B1/ko active IP Right Grant
- 2010-08-25 CN CN2010800379395A patent/CN102577346A/zh active Pending
- 2010-08-25 EP EP10811881.1A patent/EP2472849A4/en not_active Withdrawn
- 2010-08-25 WO PCT/JP2010/064331 patent/WO2011024832A1/ja active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0591369A (ja) * | 1991-09-26 | 1993-04-09 | Fujitsu Ltd | Museデコーダ用ノンリニヤエツジ信号生成装置 |
JPH09172621A (ja) * | 1995-12-20 | 1997-06-30 | Sony Corp | 圧縮高解像度ビデオ信号の補間装置および補間方法 |
WO2006068292A1 (ja) * | 2004-12-21 | 2006-06-29 | Sony Corporation | 画像処理装置と画像処理方法および画像処理プログラム |
JP2007156412A (ja) | 2005-12-08 | 2007-06-21 | Lg Phillips Lcd Co Ltd | 液晶表示装置の駆動装置及び駆動方法 |
Non-Patent Citations (1)
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KR20120088674A (ko) | 2012-08-08 |
US20120147261A1 (en) | 2012-06-14 |
EP2472849A4 (en) | 2013-05-22 |
EP2472849A1 (en) | 2012-07-04 |
JP2011049941A (ja) | 2011-03-10 |
JP4656546B2 (ja) | 2011-03-23 |
KR101361649B1 (ko) | 2014-02-11 |
CN102577346A (zh) | 2012-07-11 |
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