TW200742445A - Transform design with scaled and non-scaled interfaces - Google Patents

Transform design with scaled and non-scaled interfaces

Info

Publication number
TW200742445A
TW200742445A TW096111041A TW96111041A TW200742445A TW 200742445 A TW200742445 A TW 200742445A TW 096111041 A TW096111041 A TW 096111041A TW 96111041 A TW96111041 A TW 96111041A TW 200742445 A TW200742445 A TW 200742445A
Authority
TW
Taiwan
Prior art keywords
scaled
transform
full
implemented
interfaces
Prior art date
Application number
TW096111041A
Other languages
Chinese (zh)
Other versions
TWI432029B (en
Inventor
Yuriy Reznik
Albert Scott Ludwin
Hyuk-June Chung
Harinath Garudadri
Naveen B Srinivasamurthy
Phoom Sagetong
Original Assignee
Qualcomm Inc
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 Qualcomm Inc filed Critical Qualcomm Inc
Publication of TW200742445A publication Critical patent/TW200742445A/en
Application granted granted Critical
Publication of TWI432029B publication Critical patent/TWI432029B/en

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  • Complex Calculations (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

Techniques for efficiently performing full and scaled transforms on data received via full and scaled interfaces, respectively, are described. A full transform is a transform that implements the complete mathematical description of the transform. A full transform operates on or provides full transform coefficients. A scaled transform is a transform that operates on or provides scaled transform coefficients, which are scaled versions of the full transform coefficients. The scaled transform may have lower computational complexity whereas the full transform may be simpler to use by applications. The full and scaled transforms may be for a 2D IDCT, which may be implemented in a separable manner with 1D IDCTs. The full and scaled transforms may also be for a 2D DCT, which may be implemented in a separable manner with 1D DCTs. The 1D IDCTs and 1D DCTs may be implemented in a computationally efficient manner.
TW96111041A 2006-03-29 2007-03-29 Transform design with scaled and non-scaled interfaces TWI432029B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US78756206P 2006-03-29 2006-03-29

Publications (2)

Publication Number Publication Date
TW200742445A true TW200742445A (en) 2007-11-01
TWI432029B TWI432029B (en) 2014-03-21

Family

ID=50158219

Family Applications (2)

Application Number Title Priority Date Filing Date
TW102127853A TW201352007A (en) 2006-03-29 2007-03-29 Transform design with scaled and non-scaled interfaces
TW96111041A TWI432029B (en) 2006-03-29 2007-03-29 Transform design with scaled and non-scaled interfaces

Family Applications Before (1)

Application Number Title Priority Date Filing Date
TW102127853A TW201352007A (en) 2006-03-29 2007-03-29 Transform design with scaled and non-scaled interfaces

Country Status (1)

Country Link
TW (2) TW201352007A (en)

Also Published As

Publication number Publication date
TW201352007A (en) 2013-12-16
TWI432029B (en) 2014-03-21

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MM4A Annulment or lapse of patent due to non-payment of fees