WO2006090811A3 - Pixel interpolating method and device - Google Patents

Pixel interpolating method and device Download PDF

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Publication number
WO2006090811A3
WO2006090811A3 PCT/JP2006/303363 JP2006303363W WO2006090811A3 WO 2006090811 A3 WO2006090811 A3 WO 2006090811A3 JP 2006303363 W JP2006303363 W JP 2006303363W WO 2006090811 A3 WO2006090811 A3 WO 2006090811A3
Authority
WO
WIPO (PCT)
Prior art keywords
pixels
pixel values
difference
pixel
interpolated
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/JP2006/303363
Other languages
French (fr)
Other versions
WO2006090811A2 (en
Inventor
Ikuo Fuchigami
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to EP20060714502 priority Critical patent/EP1851718A2/en
Priority to JP2007535161A priority patent/JP4847460B2/en
Priority to CN2006800060241A priority patent/CN101128846B/en
Publication of WO2006090811A2 publication Critical patent/WO2006090811A2/en
Publication of WO2006090811A3 publication Critical patent/WO2006090811A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T3/00—Geometric image transformations in the plane of the image
    • G06T3/40—Scaling of whole images or parts thereof, e.g. expanding or contracting
    • G06T3/4007—Scaling of whole images or parts thereof, e.g. expanding or contracting based on interpolation, e.g. bilinear interpolation

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Image Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Television Systems (AREA)

Abstract

The n-tap filtering for generating interpolated pixels is converted into calculation of terms consisting of the difference and sum of the pixel values of adjoining pixels. When the difference is equal to or less than a predetermined value, the calculation related to the terms including the difference is omitted, thereby reducing the calculation amount in generating the interpolated pixels. In loop processing according to a flow chart of the pixel interpolating method, the reference pixels are accessed by one pixel per one loop processing for reading pixel values thereof, and the difference and sum of the pixel values are calculate using the adjoining pixel value already read one loop before, thereby interpolating the pixel values of consecutive pixels to be interpolated. Consequently, redundant reading of pixel values is avoided, with further beneficial effects on speedy generation of the interpolated pixels and reduction of the power consumption therein.
PCT/JP2006/303363 2005-02-25 2006-02-17 Pixel interpolating method and device Ceased WO2006090811A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP20060714502 EP1851718A2 (en) 2005-02-25 2006-02-17 Pixel interpolating method and device
JP2007535161A JP4847460B2 (en) 2005-02-25 2006-02-17 Image interpolation method and pixel interpolation device
CN2006800060241A CN101128846B (en) 2005-02-25 2006-02-17 Pixel interpolation method and device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2005-050421 2005-02-25
JP2005050421 2005-02-25

Publications (2)

Publication Number Publication Date
WO2006090811A2 WO2006090811A2 (en) 2006-08-31
WO2006090811A3 true WO2006090811A3 (en) 2006-10-19

Family

ID=36695052

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2006/303363 Ceased WO2006090811A2 (en) 2005-02-25 2006-02-17 Pixel interpolating method and device

Country Status (4)

Country Link
EP (1) EP1851718A2 (en)
JP (1) JP4847460B2 (en)
CN (1) CN101128846B (en)
WO (1) WO2006090811A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5353560B2 (en) * 2009-08-25 2013-11-27 富士通株式会社 Image processing circuit and image encoding apparatus
JP5287624B2 (en) * 2009-09-14 2013-09-11 富士通株式会社 Image processing circuit and image encoding apparatus
CN109460205B (en) * 2018-11-06 2021-09-10 沈阳天眼智云信息科技有限公司 Data curve generation and display method and system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5257355A (en) * 1986-10-01 1993-10-26 Just Systems Corporation Method and apparatus for generating non-linearly interpolated data in a data stream

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0715734A (en) * 1993-06-25 1995-01-17 Sony Corp Signal processing circuit for solid-state image sensor
JP2002190948A (en) * 2000-12-21 2002-07-05 Fuji Xerox Co Ltd Picture processor and picture processing method
JP2005532725A (en) * 2002-07-09 2005-10-27 ノキア コーポレイション Method and system for selecting interpolation filter type in video coding
JP4161676B2 (en) * 2002-10-18 2008-10-08 ソニー株式会社 Signal processing apparatus, method and program thereof

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5257355A (en) * 1986-10-01 1993-10-26 Just Systems Corporation Method and apparatus for generating non-linearly interpolated data in a data stream

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
KYEOUNSOO KIM ET AL: "A high-performance low-power asynchronous matrix-vector multiplier for discrete cosine transform", ASICS, 1999. AP-ASIC '99. THE FIRST IEEE ASIA PACIFIC CONFERENCE ON SEOUL, SOUTH KOREA 23-25 AUG. 1999, PISCATAWAY, NJ, USA,IEEE, US, 23 August 1999 (1999-08-23), pages 135 - 138, XP010371862, ISBN: 0-7803-5705-1 *
SATO, K.; YAGASAKI, Y: "Adaptive MC interpolation for memory access reduction in JVT video coding", PROCEEDINGS. SEVENTH INTERNATIONAL SYMPOSIUM ON SIGNAL PROCESSING AND ITS APPLICATIONS, 2003., vol. 1, 1 July 2003 (2003-07-01) - 4 July 2003 (2003-07-04), pages 77 - 80, XP002394465 *
TAMHANKAR A ET AL: "AN OVERVIEW OF H.264/MPEG-4 PART 10", PROCEEDINGS OF MULTIMEDIA COMMUNICATIONS, IOS PRESS, AMSTERDAM, NL, vol. 1, 2 July 2003 (2003-07-02), pages 1 - 51, XP008034260 *

Also Published As

Publication number Publication date
JP4847460B2 (en) 2011-12-28
CN101128846A (en) 2008-02-20
EP1851718A2 (en) 2007-11-07
CN101128846B (en) 2010-11-10
JP2008532335A (en) 2008-08-14
WO2006090811A2 (en) 2006-08-31

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