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Image encoding/decoding method and device, and recording medium having stored bitstream therein

An image and encoding technology, applied in image communication, digital video signal modification, electrical components, etc., can solve the problems of limitations in the improvement of encoding efficiency, achieve the effect of reducing computational complexity and improving image encoding/decoding efficiency

Active Publication Date: 2019-07-16
ELECTRONICS & TELECOMM RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, there is a limit to the improvement of coding efficiency

Method used

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  • Image encoding/decoding method and device, and recording medium having stored bitstream therein
  • Image encoding/decoding method and device, and recording medium having stored bitstream therein
  • Image encoding/decoding method and device, and recording medium having stored bitstream therein

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Embodiment Construction

[0057] Various modifications can be made to the invention, and there are various embodiments of the invention, examples of which will now be provided with reference to the accompanying drawings and will be described in detail. However, the present invention is not limited thereto although the exemplary embodiments can be construed to include all modifications, equivalents or replacements within the technical idea and technical scope of the present invention. Like reference numerals refer to identical or similar functions in various respects. In the drawings, the shapes and sizes of elements may be exaggerated for clarity. In the following detailed description of the invention, reference is made to the accompanying drawings that show, by way of illustration, specific embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the disclosure. It should be understood that the various em...

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Abstract

The present invention relates to an image encoding / decoding method. To this end, the image decoding method can comprise the steps of: generating a first prediction block of a current block by using motion information of the current block; generating a second prediction block of at least one current lower block by using motion information of at least one neighboring lower block of the current lowerblock; and generating a final prediction block on the basis of the weighted sum of the first prediction block of the current block and the second prediction block of the at least one current lower block.

Description

technical field [0001] The present invention relates to a method and apparatus for encoding / decoding images and a recording medium storing a bit stream. More particularly, the present invention relates to a method and apparatus for encoding / decoding images using overlapping block motion compensation. Background technique [0002] Recently, demands for high-resolution quality images such as high-definition (HD) images or ultra-high-definition (UHD) images have increased in various application fields. However, the data volume of image data of higher resolution and quality has increased compared with conventional image data. Therefore, when image data is transmitted by using a medium such as a conventional wired broadband network or a wireless broadband network, or when image data is stored in a conventional storage medium, transmission costs and storage costs increase. In order to solve these problems that arise as the resolution and quality of image data increase, efficient...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/513H04N19/11H04N19/132H04N19/119H04N19/174H04N19/86H04N19/105H04N19/186H04N19/44
CPCH04N19/105H04N19/11H04N19/119H04N19/132H04N19/174H04N19/186H04N19/44H04N19/513H04N19/86H04N19/70H04N19/52H04N19/176H04N19/157
Inventor 林成昶赵承眩姜晶媛高玄硕李镇浩李河贤全东山金晖容崔振秀
Owner ELECTRONICS & TELECOMM RES INST
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