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1. (WO2015042976) METHODS AND SYSTEMS FOR IMAGE ENCODING AND DECODING AND TERMINAL

Pub. No.:    WO/2015/042976    International Application No.:    PCT/CN2013/084766
Publication Date: Fri Apr 03 01:59:59 CEST 2015 International Filing Date: Tue Oct 01 01:59:59 CEST 2013
IPC: H04N 19/00
H04N 19/50
Applicants: COOLPAD SOFTWARE TECH (SHENZHEN) CO., LTD.
酷派软件技术(深圳)有限公司
Inventors: CAO, Jian
曹坚
Title: METHODS AND SYSTEMS FOR IMAGE ENCODING AND DECODING AND TERMINAL
Abstract:
Provided are a method for image encoding, a method for image decoding, methods and systems for image encoding and decoding and a terminal. The method for image encoding comprises: determining, in a video sequence that is to be transmitted to a receiving terminal, whether there is at least one front face image in a facial image of a current image frame; if there is at least one front face image, dividing each front face image of the at least one front face image along the central perpendicular line of a line between the two eyes of a front face image, and calculating difference data between a half front face image and another half front face image of the divided front face image; and obtaining front face information by encoding either half front face image and the difference data of the front face image by means of a first encoding scheme, and transmitting the front face information to the receiving terminal. By means of the technical solution of the present application, in an image transmission process, the bandwidth occupied by transmission can be further reduced, user experience to image transmission can be improved, and an image receiving end can restore an original image frame.