Fault-tolerant and progressive transmission of images

摘要

A fault-tolerant progressive image transmission method is proposed. The advantages include the following: (1) Unlike most progressive methods, the image is divided into n parts with equal importance to avoid worrying about which part is lost or transmitted first. (2) If the image is a secret image, then the transmission can use n distinct channels (one shared result per channel), and intercepting up to r1-1 channels by the enemy (r1⩽⋯⩽rk⩽n are all pre-set constants) will not reveal any secret. Meanwhile, the disconnection up to n-rk channels will not affect the lossless recovery of the secret image.