WO2012073644A1 - 画像処理装置及び画像処理方法 - Google Patents

画像処理装置及び画像処理方法 Download PDF

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Publication number
WO2012073644A1
WO2012073644A1 PCT/JP2011/075403 JP2011075403W WO2012073644A1 WO 2012073644 A1 WO2012073644 A1 WO 2012073644A1 JP 2011075403 W JP2011075403 W JP 2011075403W WO 2012073644 A1 WO2012073644 A1 WO 2012073644A1
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WO
WIPO (PCT)
Prior art keywords
image data
data
compression
image
processing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2011/075403
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English (en)
French (fr)
Japanese (ja)
Inventor
雅之 山口
信次 新庄
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sharp Corp
Original Assignee
Sharp Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sharp Corp filed Critical Sharp Corp
Priority to CN201180057877.9A priority Critical patent/CN103238324B/zh
Priority to US13/991,032 priority patent/US8983215B2/en
Priority to EP11845368.7A priority patent/EP2648408A4/en
Publication of WO2012073644A1 publication Critical patent/WO2012073644A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T9/00—Image coding
    • G06T9/004—Predictors, e.g. intraframe, interframe coding
    • 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
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0439—Pixel structures
    • G09G2300/0452—Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0252—Improving the response speed
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2340/00—Aspects of display data processing
    • G09G2340/02—Handling of images in compressed format, e.g. JPEG, MPEG
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2340/00—Aspects of display data processing
    • G09G2340/06—Colour space transformation
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2340/00—Aspects of display data processing
    • G09G2340/16—Determination of a pixel data signal depending on the signal applied in the previous frame
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/12—Selection from among a plurality of transforms or standards, e.g. selection between discrete cosine transform [DCT] and sub-band transform or selection between H.263 and H.264
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/146—Data rate or code amount at the encoder output
    • H04N19/147—Data rate or code amount at the encoder output according to rate distortion criteria
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
    • H04N19/176—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock

Definitions

  • the present invention relates to an image processing apparatus and an image processing method, and in particular, stores predetermined image data as state image data in a frame memory after being subjected to data compression processing, and read out from the frame memory to perform data processing for the next frame.
  • the present invention relates to an image processing apparatus and an image processing method that are used after being subjected to data decompression processing.
  • Some image processing apparatuses generate output image data by performing data processing of image input data depending on a state generated as a result of processing of image data input so far, in addition to current image data input. .
  • data representing a state generated as a result of the processing is generated as state image data, which is temporarily stored in an image memory called a frame memory and used for data processing of the next frame.
  • a frame memory an image memory
  • the amount of image data to be processed by devices and systems is increasing explosively with the recent rapid increase in definition and speed of image data. Accordingly, the required frame memory size and the data transfer capability to the frame memory are increasing, and realization with a realistic circuit is becoming difficult. Therefore, it is very important to reduce the amount of data stored in the frame memory.
  • FIG. 5 shows that state image data is generated from input image data, the state image data is compressed and stored in a frame memory, and output image data is generated using the state image data expanded in the processing of the next frame.
  • Patent Document 2 as one method of lossy compression, encoding with less signal degradation is one of a means for encoding image input data (PCM processing) and a means for differentially encoding image input data (DPCM processing).
  • PCM processing a means for encoding image input data
  • DPCM processing a means for differentially encoding image input data
  • An apparatus that reduces and eliminates image quality degradation by selecting means is disclosed.
  • the image processing apparatus targeted by the present invention can be configured as shown in FIG. 5 using, for example, the apparatus disclosed in Patent Document 2 below as image compression means and image expansion means.
  • the present invention has been made in view of the above-described problems, and an object of the present invention is to provide an image processing apparatus and image processing capable of reducing the influence of compression errors generated in image data stored in a frame memory on output image data. It is to provide a method.
  • FIG. 1 is a block diagram showing a schematic configuration of the apparatus of the present invention.
  • the apparatus 1 of the present invention includes an input terminal IN, a compression error prediction unit 11, a substitute image data generation unit 12, a current image data selection unit 13, an output image data generation unit 14, and a state image data generation unit 15. , Image compression means 16, image expansion means 17, frame memory 18, and output terminal OUT.
  • the method of the present invention includes the following steps executed by the above-described units of the device of the present invention.
  • the input terminal IN is a terminal that receives input of input image data DI to be subjected to image processing.
  • the input image data DI input from the input terminal IN is sent to the compression error prediction unit 11, the substitute image data generation unit 12, and the current image data selection unit 13.
  • the current image data selection means 13 selects either the input image data DI or the substitute image data DIA as the current image data DC based on the compression error prediction value ERR for each pixel data of the input image data DI, It outputs to the output image data generation means 14 and the state image data generation means 15 (current image data selection process).
  • the embodiment of the image processing (the method of the present invention) by the device 1 of the present invention has been described in detail based on the specific calculation examples.
  • the device and method of the present invention are the specific examples described in the above embodiments.
  • the processing content is not limited.
  • the number of pixels of image data, the gradation value, and the color system (color specification format) handled by the apparatus and method of the present invention are not limited to those in the above embodiments.
  • the data processing contents of the output image data generation means 14 and the state image data generation means 15 are also limited to the data processing functions F (dc, dr) and G (dc, dr) shown in the above equations 1 and 2. is not.
  • the data processing function F (dc, dr) is for overshoot processing in each of the above embodiments, but may be another data processing function for correction processing.

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Computer Hardware Design (AREA)
  • Chemical & Material Sciences (AREA)
  • Multimedia (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression Of Band Width Or Redundancy In Fax (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
PCT/JP2011/075403 2010-12-01 2011-11-04 画像処理装置及び画像処理方法 Ceased WO2012073644A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201180057877.9A CN103238324B (zh) 2010-12-01 2011-11-04 图像处理装置以及图像处理方法
US13/991,032 US8983215B2 (en) 2010-12-01 2011-11-04 Image processing device and image processing method
EP11845368.7A EP2648408A4 (en) 2010-12-01 2011-11-04 IMAGE PROCESSING DEVICE AND IMAGE PROCESSING METHOD

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010-268098 2010-12-01
JP2010268098A JP5285683B2 (ja) 2010-12-01 2010-12-01 画像処理装置及び画像処理方法

Publications (1)

Publication Number Publication Date
WO2012073644A1 true WO2012073644A1 (ja) 2012-06-07

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PCT/JP2011/075403 Ceased WO2012073644A1 (ja) 2010-12-01 2011-11-04 画像処理装置及び画像処理方法

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US (1) US8983215B2 (enExample)
EP (1) EP2648408A4 (enExample)
JP (1) JP5285683B2 (enExample)
CN (1) CN103238324B (enExample)
WO (1) WO2012073644A1 (enExample)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6262571B2 (ja) * 2014-03-07 2018-01-17 株式会社メガチップス 画像処理装置
US10051279B2 (en) 2014-07-01 2018-08-14 Samsung Display Co., Ltd. High quality display system combining compressed frame buffer and temporal compensation technique
JP7326794B2 (ja) * 2019-03-19 2023-08-16 富士フイルムビジネスイノベーション株式会社 データ管理システム
JP7038903B2 (ja) * 2019-03-25 2022-03-18 株式会社ソニー・インタラクティブエンタテインメント 画像表示制御装置、送信装置、画像表示制御方法及びプログラム

Citations (7)

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JP2005316369A (ja) * 2004-04-26 2005-11-10 Chunghwa Picture Tubes Ltd Ｔｆｔ−ｌｃｄの画像処理方法
JP2006195151A (ja) * 2005-01-13 2006-07-27 Nec Electronics Corp コントローラ・ドライバ及びそれを用いる液晶表示装置並びに液晶駆動方法
JP2006267172A (ja) * 2005-03-22 2006-10-05 Kawasaki Microelectronics Kk 画像表示装置および画像データ補正回路
JP2007052127A (ja) 2005-08-16 2007-03-01 Toshiba Corp 画像処理装置、画像処理方法および画像処理プログラム
JP2008281734A (ja) * 2007-05-10 2008-11-20 Kawasaki Microelectronics Kk オーバードライブ回路
JP2010002668A (ja) * 2008-06-20 2010-01-07 Sharp Corp 表示制御回路、それを備えた液晶表示装置、および表示制御方法
JP2010004514A (ja) 2007-10-01 2010-01-07 Sharp Corp 画像符号化装置、画像符号化方法、画像符復号化システム

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EP1667457A4 (en) * 2003-09-16 2011-11-16 Fujitsu Semiconductor Ltd PICTURE PROCESSING DISPLAY DEVICE AND PICTURE PROCESSING DISPLAY METHOD
US20050123038A1 (en) * 2003-12-08 2005-06-09 Canon Kabushiki Kaisha Moving image encoding apparatus and moving image encoding method, program, and storage medium
US7787541B2 (en) * 2005-10-05 2010-08-31 Texas Instruments Incorporated Dynamic pre-filter control with subjective noise detector for video compression
CN101322393B (zh) * 2005-12-01 2010-09-01 日本电气株式会社 图像处理装置及其图像处理方法、图像传送装置及其图像传送方法、以及图像显示设备
TWI362887B (en) * 2008-03-26 2012-04-21 Etron Technology Inc An over-drive device and method and method for generating compressed frames

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005316369A (ja) * 2004-04-26 2005-11-10 Chunghwa Picture Tubes Ltd Ｔｆｔ−ｌｃｄの画像処理方法
JP2006195151A (ja) * 2005-01-13 2006-07-27 Nec Electronics Corp コントローラ・ドライバ及びそれを用いる液晶表示装置並びに液晶駆動方法
JP2006267172A (ja) * 2005-03-22 2006-10-05 Kawasaki Microelectronics Kk 画像表示装置および画像データ補正回路
JP2007052127A (ja) 2005-08-16 2007-03-01 Toshiba Corp 画像処理装置、画像処理方法および画像処理プログラム
JP2008281734A (ja) * 2007-05-10 2008-11-20 Kawasaki Microelectronics Kk オーバードライブ回路
JP2010004514A (ja) 2007-10-01 2010-01-07 Sharp Corp 画像符号化装置、画像符号化方法、画像符復号化システム
JP2010002668A (ja) * 2008-06-20 2010-01-07 Sharp Corp 表示制御回路、それを備えた液晶表示装置、および表示制御方法

Non-Patent Citations (1)

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Title
See also references of EP2648408A4

Also Published As

Publication number Publication date
EP2648408A4 (en) 2015-11-18
EP2648408A1 (en) 2013-10-09
JP5285683B2 (ja) 2013-09-11
US8983215B2 (en) 2015-03-17
US20130251277A1 (en) 2013-09-26
CN103238324A (zh) 2013-08-07
JP2012119950A (ja) 2012-06-21
CN103238324B (zh) 2016-11-16

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