Image encoding/decoding method and device

An image encoding and image decoding technology, applied in the field of image encoding/decoding and devices, can solve problems such as cost increase, and achieve the effect of reducing the number and improving the encoding/decoding efficiency

Active Publication Date: 2019-03-15
ELECTRONICS & TELECOMM RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when image data is transmitted by using a medium such as a conventional wired and wireless broadband network, or when image data is stored by using a conventional storage medium, the cost of transmission and storage increases

Method used

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  • Image encoding/decoding method and device
  • Image encoding/decoding method and device
  • Image encoding/decoding method and device

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Embodiment Construction

[0071] invention model

[0072] 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 unde...

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Abstract

The present invention relates to an image encoding / decoding method and device. The image encoding method, according to the present invention, may comprise the steps: generating a transform block by performing at least one of transformation and quantization; grouping at least one coefficient included in the transform block into at least one coefficient group (CG); scanning at least one coefficientincluded in the CG; and encoding the at least one coefficient.

Description

technical field [0001] The invention relates to a method and a device for encoding and decoding images. More particularly, the present invention relates to a method and apparatus for encoding and decoding images using scanning. Background technique [0002] Recently, demands for high-resolution and high-quality images, such as high-definition (HD) images and ultra-high-definition (UHD) images, have increased in various application fields. However, image data of higher resolution and quality increases the amount of data compared to conventional image data. Therefore, when image data is transmitted by using a medium such as a conventional wired and wireless broadband network, or when image data is stored by using a conventional storage medium, the cost of transmission and storage increases. In order to solve these problems that occur as the resolution and quality of image data increase, an efficient image encoding / decoding technique for higher resolution and higher quality i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/182H04N19/159H04N19/91H04N19/146H04N19/44
CPCH04N19/129H04N19/167H04N19/136H04N19/18H04N19/649H04N19/88H04N19/182H04N19/159H04N19/146H04N19/44H04N19/60H04N19/70H04N19/149H04N19/176H04N19/91
Inventor 林成昶姜晶媛高玄硕李镇浩全东山李河贤赵承眩金晖容崔振秀李英烈崔俊优
Owner ELECTRONICS & TELECOMM RES INST
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