METHOD FOR ENCODING/DECODING IMAGE AND DEVICE THEREFOR

Title:

METHOD FOR ENCODING/DECODING IMAGE AND DEVICE THEREFOR

Document Type and Number:

WIPO Patent Application WO/2019/009490

Kind Code:

A1

Abstract:

Provided are an image compressing method and an image compressing device for performing the image compressing method. A method for compressing an image according to an embodiment comprises the steps of: performing downsampling by means of a DNN with respect to an image and thus determining a compressed image; performing prediction on the basis of the compressed image and thus determining a prediction signal; determining a residual signal on the basis of the compressed image and the prediction signal; and generating a bitstream comprising information relating to the residual signal, wherein the DNN has a network structure determined by means of learning of a downsampling process using information generated in an upsampling process. Provided are an image restoration method, for restoring a compressed image, which is compressed by means of an image compression method, by means of a DNN for upsampling, and an image restoration device for performing the image restoration method.

More Like This:

JP3308921	METHOD AND SYSTEM FOR LOOP-FILTERING VIDEO DATA
JPH09200771	METHOD AND DEVICE FOR MOTION COMPENSATION PREDICTIVE ENCODING FOR MOVING IMAGE
JP6418300	Moving image decoding device, moving image decoding method, moving image decoding program, receiving device, receiving method and receiving program

Inventors:

KIM JAE-HWAN (KR)
PARK YOUNG-O (KR)
PARK JEONG-HOON (KR)
LEE JONG-SEOK (KR)
JEON SUN-YOUNG (KR)
CHOI KWANG-PYO (KR)

Application Number:

PCT/KR2018/001542

Publication Date:

January 10, 2019

Filing Date:

February 06, 2018

Export Citation:

Click for automatic bibliography generation Help

Assignee:

SAMSUNG ELECTRONICS CO LTD (KR)

International Classes:

H04N19/50; G06N3/04; G06N3/08; H04N19/117; H04N19/132; H04N19/184

Domestic Patent References:

WO2016132148A1

2016-08-25

Foreign References:

KR101425602B1	2014-07-31
US20080140594A1	2008-06-12
KR101375663B1	2014-04-03

Other References:

MAO, XIAO-JIAO ET AL.: "Image Restoration Using Convolutional Auto-encoders with Symmetric Skip Connections", ARXIV, 30 August 2016 (2016-08-30), pages 1 - 17, XP055565060, Retrieved from the Internet

Attorney, Agent or Firm:

Y.P.LEE, MOCK & PARTNERS (KR)

Download PDF:

View/Download PDF PDF Help

Previous Patent: METHOD FOR ENCODING/DECODING IMAGE, AND DEVICE THEREFOR

Next Patent: METHOD AND DEVICE FOR ENCODING OR DECODING IMAGE