WO1999052281A3 - Hdtv up converter - Google Patents

Hdtv up converter Download PDF

Info

Publication number
WO1999052281A3
WO1999052281A3 PCT/CA1999/000286 CA9900286W WO9952281A3 WO 1999052281 A3 WO1999052281 A3 WO 1999052281A3 CA 9900286 W CA9900286 W CA 9900286W WO 9952281 A3 WO9952281 A3 WO 9952281A3
Authority
WO
WIPO (PCT)
Prior art keywords
video
fields
interpolation
interpolations
missing
Prior art date
Application number
PCT/CA1999/000286
Other languages
French (fr)
Other versions
WO1999052281A2 (en
Inventor
Cong Toai Kieu
Dinh Chon Tam Le
Daniel Poirier
Original Assignee
Miranda Technologies Inc
Cong Toai Kieu
Dinh Chon Tam Le
Daniel Poirier
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
Priority claimed from US09/089,472 external-priority patent/US6181382B1/en
Application filed by Miranda Technologies Inc, Cong Toai Kieu, Dinh Chon Tam Le, Daniel Poirier filed Critical Miranda Technologies Inc
Priority to EP99911555A priority Critical patent/EP1084577A1/en
Priority to JP2000542915A priority patent/JP2002510946A/en
Priority to CA002326214A priority patent/CA2326214C/en
Priority to AU30219/99A priority patent/AU3021999A/en
Publication of WO1999052281A2 publication Critical patent/WO1999052281A2/en
Publication of WO1999052281A3 publication Critical patent/WO1999052281A3/en

Links

Classifications

    • 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
    • H04N7/0137—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level involving interpolation processes dependent on presence/absence of motion, e.g. of motion zones
    • 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
    • H04N7/0117—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level involving conversion of the spatial resolution of the incoming video signal
    • H04N7/012—Conversion between an interlaced and a progressive signal
    • 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
    • H04N7/0117—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level involving conversion of the spatial resolution of the incoming video signal
    • H04N7/0122—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level involving conversion of the spatial resolution of the incoming video signal the input and the output signals having different aspect ratios
    • 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
    • H04N7/0125—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level one of the standards being a high definition standard
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/64—Circuits for processing colour signals
    • 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
    • H04N5/147—Scene change detection

Abstract

An electronic apparatus for converting a standard video signal having 59.94 fields per second into an HDTV video signal having 60.00 fields per second, by adding a number of video fields into each sequence of 1000 video fields. The apparatus detects the best moment for adding the new video field, so that the human eye does not perceive an abrupt change in the video image, by detecting the best motion conditions which occurs either when the image motion is high or very low. For adding the new video field, the apparatus uses an interpolation technique for creating two interpolated video fields which are inserted in place of one existing video field which is deleted. The apparatus also comprises a de-interlacer module for deinterlacing the 60 Hz video image, by using an advanced interpolation technique for calculating the missing video lines. The proposed technique involves directional interpolations of the missing lines pixels in various directions and selection of the best interpolation direction for the creation of each pixel of the missing video lines. The corresponding de-interlacer apparatus comprises a novel edge direction detector which performs the mentionned interpolations in all interpolating directions and then selects the best direction for performing the interpolation for each interpolated pixel, based on the quality of the performed interpolations.
PCT/CA1999/000286 1998-04-03 1999-04-01 Hdtv up converter WO1999052281A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP99911555A EP1084577A1 (en) 1998-04-03 1999-04-01 Hdtv up converter
JP2000542915A JP2002510946A (en) 1998-04-03 1999-04-01 Converter to improve HDTV (High Definition Television)
CA002326214A CA2326214C (en) 1998-04-03 1999-04-01 Hdtv up converter
AU30219/99A AU3021999A (en) 1998-04-03 1999-04-01 Hdtv up converter

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CAPCT/CA98/00304 1998-04-03
CAPCT/CA98/00304 1998-04-03
US09/089,472 US6181382B1 (en) 1998-04-03 1998-06-02 HDTV up converter
US09/089,472 1998-06-02

Publications (2)

Publication Number Publication Date
WO1999052281A2 WO1999052281A2 (en) 1999-10-14
WO1999052281A3 true WO1999052281A3 (en) 1999-11-18

Family

ID=25683154

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CA1999/000286 WO1999052281A2 (en) 1998-04-03 1999-04-01 Hdtv up converter

Country Status (5)

Country Link
EP (1) EP1084577A1 (en)
JP (1) JP2002510946A (en)
AU (1) AU3021999A (en)
DE (1) DE69928134D1 (en)
WO (1) WO1999052281A2 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6760378B1 (en) 1999-06-30 2004-07-06 Realnetworks, Inc. System and method for generating video frames and correcting motion
US6735338B1 (en) 1999-06-30 2004-05-11 Realnetworks, Inc. System and method for generating video frames and detecting text
US6753865B1 (en) 1999-06-30 2004-06-22 Realnetworks, Inc. System and method for generating video frames and post filtering
US6731818B1 (en) * 1999-06-30 2004-05-04 Realnetworks, Inc. System and method for generating video frames
US6765964B1 (en) 2000-12-06 2004-07-20 Realnetworks, Inc. System and method for intracoding video data
JP4553481B2 (en) * 2000-12-14 2010-09-29 パナソニック株式会社 Scanning line interpolation device
KR100574943B1 (en) * 2003-06-10 2006-05-02 삼성전자주식회사 Method and apparatus for image transformation
EP1558033A1 (en) * 2004-01-21 2005-07-27 Deutsche Thomson-Brandt Gmbh Method and apparatus for controlling the insertion of additional fields or frames into a picture sequence to change its format
EP1800247B1 (en) * 2004-08-20 2017-11-01 QUALCOMM Incorporated Edge adaptive image expansion and enhancement system and method
EP1631089A1 (en) * 2004-08-30 2006-03-01 Matsushita Electric Industrial Co., Ltd. Video coding apparatus and decoding apparatus
JP4821511B2 (en) * 2006-08-30 2011-11-24 ソニー株式会社 VIDEO PROCESSING METHOD, VIDEO PROCESSING PROGRAM, VIDEO PROCESSING DEVICE, AND REPRODUCTION METHOD, REPRODUCTION PROGRAM, AND REPRODUCTION DEVICE
JP2008079029A (en) * 2006-09-21 2008-04-03 Hitachi Kokusai Electric Inc Image processor
WO2010038197A1 (en) 2008-09-30 2010-04-08 Nxp B.V. Profile for frame rate conversion
US9654792B2 (en) 2009-07-03 2017-05-16 Intel Corporation Methods and systems for motion vector derivation at a video decoder
US8279344B2 (en) 2009-12-14 2012-10-02 Qnx Software Systems Limited Synchronization of video presentation by video cadence modification

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2197152A (en) * 1986-10-31 1988-05-11 British Broadcasting Corp Interpolating lines of video signals
EP0637889A2 (en) * 1993-08-06 1995-02-08 Goldstar Co. Ltd. Device for converting image frame format
WO1995021505A1 (en) * 1994-02-01 1995-08-10 Snell & Wilcox Limited Video processing and method for converting video signals
EP0710018A2 (en) * 1994-10-31 1996-05-01 Victor Company Of Japan, Ltd. Scanning line interpolating apparatus with a motion vector detector
CA2213606A1 (en) * 1996-09-09 1998-03-09 Miranda Technologies Inc. Apparatus and method for line interpolating an interlaced video signal

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06189274A (en) * 1992-12-22 1994-07-08 Hitachi Ltd Method and device for converting frequency
JPH07193792A (en) * 1993-12-27 1995-07-28 Casio Comput Co Ltd Scanning line interpolating device
JP3537189B2 (en) * 1994-08-01 2004-06-14 沖電気工業株式会社 Television signal converter

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2197152A (en) * 1986-10-31 1988-05-11 British Broadcasting Corp Interpolating lines of video signals
EP0637889A2 (en) * 1993-08-06 1995-02-08 Goldstar Co. Ltd. Device for converting image frame format
WO1995021505A1 (en) * 1994-02-01 1995-08-10 Snell & Wilcox Limited Video processing and method for converting video signals
EP0710018A2 (en) * 1994-10-31 1996-05-01 Victor Company Of Japan, Ltd. Scanning line interpolating apparatus with a motion vector detector
CA2213606A1 (en) * 1996-09-09 1998-03-09 Miranda Technologies Inc. Apparatus and method for line interpolating an interlaced video signal

Also Published As

Publication number Publication date
DE69928134D1 (en) 2005-12-08
JP2002510946A (en) 2002-04-09
AU3021999A (en) 1999-10-25
EP1084577A1 (en) 2001-03-21
WO1999052281A2 (en) 1999-10-14

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