Title:
VIDEO ENCODING DEVICE, VIDEO DECODING METHOD AND RECORDING MEDIUM
Document Type and Number:
WIPO Patent Application WO/2017/213033
Kind Code:
A1
Abstract:
Provided is a technique capable of outputting a scalable bitstream of high image quality even when image structures respectively input to an upper layer and the lowest layer are different. This video encoding device is provided with: an enhancement layer (EL) encoder which encodes an input image as an EL and outputs an EL bitstream; a base layer (BL) encoder that encodes, as a BL, a low resolution image to which the input image is down-sampled and which has a different structure from the input image, and that outputs a BL bitstream; and a multiplexer which generates a scalable bitstream. The EL encoder is provided with: a processing unit which processes a reconstructed image of the low resolution image such that the reconstructed image becomes an image corresponding to the input image in a time direction; and an up-sampling unit which performs an up-sampling process on the image corresponding to the input image in the time direction, wherein the EL encoder performs an encoding process by using the image on which the up-sampling process has been performed.
Inventors:
TOKUMITSU KENTA (JP)
Application Number:
PCT/JP2017/020547
Publication Date:
December 14, 2017
Filing Date:
June 02, 2017
Export Citation:
Assignee:
NEC CORP (JP)
International Classes:
H04N19/33; H04N19/31; H04N19/59
Foreign References:
| JP2007081983A | 2007-03-29 | |||
| JP2007053554A | 2007-03-01 | |||
| JP2006521727A | 2006-09-21 |
Attorney, Agent or Firm:
SHIMOSAKA Naoki (JP)
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