Title:
VIDEO ENCODING METHOD, VIDEO DECODING METHOD, VIDEO ENCODING DEVICE AND VIDEO DECODING DEVICE
Document Type and Number:
WIPO Patent Application WO/2013/187060
Kind Code:
A1
Abstract:
In the present invention, a video encoding method with improved encoding efficiency is provided with the following: a step (S303) for calculating an orthogonal conversion skip-flag value by determining whether orthogonal conversion should be applied; a step (S304) for calculating at least one orthogonal conversion coefficient by performing orthogonal conversion of a prediction residual in accordance with the orthogonal conversion skip-flag value; a step (S305) for calculating at least one quantization coefficient by quantizing the at least one orthogonal conversion coefficient; a step (S306) for performing variable length encoding on the orthogonal conversion skip flag; and a step (S307) for switching the scan order of the at least one quantization coefficient according to the orthogonal conversion skip-flag value, and performing variable length encoding of the at least one quantization coefficient in accordance with the switched scan order.
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Inventors:
SUGIO TOSHIYASU
NISHI TAKAHIRO
SHIBAHARA YOUJI
TANIKAWA KYOKO
SASAI HISAO
MATSUNOBU TORU
TERADA KENGO
NISHI TAKAHIRO
SHIBAHARA YOUJI
TANIKAWA KYOKO
SASAI HISAO
MATSUNOBU TORU
TERADA KENGO
Application Number:
PCT/JP2013/003687
Publication Date:
December 19, 2013
Filing Date:
June 12, 2013
Export Citation:
Assignee:
PANASONIC CORP (JP)
International Classes:
H04N7/32
Foreign References:
| JP2009027541A | 2009-02-05 |
Other References:
MARTA MRAK ET AL.: "Transform skip mode", JOINT COLLABORATIVE TEAM ON VIDEO CODING (JCT-VC) OF ITU-T SG16 WP3 AND ISO/IEC JTC1/SC29/WG11 6TH MEETING, 14 July 2011 (2011-07-14), TORINO, IT
CUILING LAN ET AL.: "Intra transform skipping", JOINT COLLABORATIVE TEAM ON VIDEO CODING (JCT-VC) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11 9TH MEETING, 27 April 2012 (2012-04-27), GENEVA, CH
DAE-YEON KIM ET AL.: "Enhanced intra coding", ITU - TELECOMMUNICATIONS STANDARDIZATION SECTOR STUDY GROUP 16 QUESTION 6 VIDEO CODING EXPERTS GROUP (VCEG) 34TH MEETING: ANTALYA, TURKEY, 12 January 2008 (2008-01-12)
CUILING LAN ET AL.: "Intra transform skipping", JOINT COLLABORATIVE TEAM ON VIDEO CODING (JCT-VC) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11 9TH MEETING, 27 April 2012 (2012-04-27), GENEVA, CH
DAE-YEON KIM ET AL.: "Enhanced intra coding", ITU - TELECOMMUNICATIONS STANDARDIZATION SECTOR STUDY GROUP 16 QUESTION 6 VIDEO CODING EXPERTS GROUP (VCEG) 34TH MEETING: ANTALYA, TURKEY, 12 January 2008 (2008-01-12)
Attorney, Agent or Firm:
NII, Hiromori et al. (JP)
New house Extensive 守 (JP)
New house Extensive 守 (JP)
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