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1. WO2022205603 - IMAGE COMPRESSION METHOD AND COMPRESSION APPARATUS

Publication Number WO/2022/205603
Publication Date 06.10.2022
International Application No. PCT/CN2021/096606
International Filing Date 28.05.2021
IPC
H04N 19/182 2014.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
169characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
182the unit being a pixel
CPC
H04N 19/182
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
169characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
182the unit being a pixel
H04N 19/70
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
70characterised by syntax aspects related to video coding, e.g. related to compression standards
Y02D 10/00
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
10Energy efficient computing, e.g. low power processors, power management or thermal management
Applicants
  • TCL华星光电技术有限公司 TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD. [CN]/[CN]
Inventors
  • 刘金风 LIU, Jinfeng
Agents
  • 深圳紫藤知识产权代理有限公司 PURPLEVINE INTELLECTUAL PROPERTY (SHENZHEN) CO., LTD.
Priority Data
202110353826.601.04.2021CN
Publication Language Chinese (zh)
Filing Language Chinese (ZH)
Designated States
Title
(EN) IMAGE COMPRESSION METHOD AND COMPRESSION APPARATUS
(FR) PROCÉDÉ DE COMPRESSION D'IMAGE ET APPAREIL DE COMPRESSION
(ZH) 图像压缩方法及压缩装置
Abstract
(EN) The present application provides an image compression method and compression apparatus. The method comprises: acquiring grayscale pixel information of an original image and first target grayscale pixel information; dividing the first target grayscale pixel information into a plurality of first grayscale regions according to a preset first grayscale difference threshold, and generating first region information; and compressing sub-grayscale pixel information of each first grayscale region to obtain first compressed data of the original image. According to the present application, the transmission rate is increased and a small storage space is required.
(FR) La présente demande concerne un procédé de compression d'image et un appareil de compression. Le procédé consiste à : acquérir des informations de pixel d'échelle de gris d'une image d'origine et des premières informations de pixel d'échelle de gris cibles ; diviser les premières informations de pixel d'échelle de gris cibles en une pluralité de premières régions d'échelle de gris selon un premier seuil de différence d'échelle de gris prédéfini et générer des premières informations de région ; et compresser des informations de pixel de sous-échelle de gris de chaque première région d'échelle de gris pour obtenir des premières données compressées de l'image d'origine. Selon la présente demande, la vitesse de transmission est augmentée et un petit espace de stockage est nécessaire.
(ZH) 本申请提供一种图像压缩方法及压缩装置,方法包括获取原始图像的灰阶像素信息及第一目标灰阶像素信息;根据预设的第一灰阶差阈值将第一目标灰阶像素信息划分为多个第一灰阶区域,生成第一区域信息;对每一第一灰阶区域的子灰阶像素信息进行压缩,得到原始图像的第一压缩数据。本申请提高了传输速率,降低了存储空间。
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