IMAGE ENCODING DEVICE AND METHOD

Title:

IMAGE ENCODING DEVICE AND METHOD

Document Type and Number:

WIPO Patent Application WO/2016/125604

Kind Code:

A1

Abstract:

The disclosure of the present invention relates to an image encoding device and method by which it is possible to improve encoding speed while maintaining image quality. A statistical information calculation unit supplies calculated statistical information to a table selection unit. The table selection unit is additionally supplied with a picture type of an image from an image reordering buffer, and a quantization parameter Qp from a rate control unit. The table selection unit determines which of a plurality of mode tables stored in a table memory unit to use on the basis of the statistical information and the picture type. For example, the table selection unit selects the mode table depending on factors such as whether the statistical information is greater or less than a prescribed threshold value. This disclosure can be applied to an image processing device that performs encoding, for example.

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Inventors:

KOUNO MASAKAZU (JP)

Application Number:

PCT/JP2016/051804

Publication Date:

August 11, 2016

Filing Date:

January 22, 2016

Export Citation:

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Assignee:

SONY CORP (JP)

International Classes:

H04N19/103; H04N19/157; H04N19/176

Domestic Patent References:

WO2014192244A1	2014-12-04
WO2012105406A1	2012-08-09

Foreign References:

JP2006203909A	2006-08-03
JP2005191706A	2005-07-14

Other References:

HUNG-CHIH LIN ET AL.: "Layer-Adaptive Mode Decision and Motion Search for Scalable Video Coding with Combined Coarse Granular Scalability (CGS) and Temporal Scalability", IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING (ICIP 2007, vol. 2, September 2007 (2007-09-01), pages II- 289 - II-292

Attorney, Agent or Firm:

NISHIKAWA Takashi et al. (JP)
Nishikawa 孝 (JP)

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