Vision Research Lab - Zero Divergence Secure Steganography

Steganography is the art and science of communicating in such a way that the very existence of communication is not revealed to a third party. In order to communicate without being detected, the data-hider must obey following two conditions.

1.Perceptual constraint. The perceptual distortion between the original and stego image should not be more than a certain maximum amount, D1 , for some perceptual distance measure.

2.Statistical constraint. The embedding process should not modify the statistics of the host signal more than a very small number, epsilon, for some statistical distance measure.

The objective in this project is to investigate steganographic schemes that can provide provable security by achieving zero Kullback-Leibler divergence between the cover and the stego signal distributions, while communicating at high rates.


隱藏學是以科學融合藝術的方式來傳達訊息並且不洩露給第三者。為了不被發現通信數據，hider必須遵守以下兩個條件。

1.Perceptual限制。視覺的扭曲，原先估計與隱藏對象不能超過某個限制，D1，對於一些視覺的距離度量。

2.Statistical限制。在嵌入過程不應修改統計主機信號中的極少數，ε，對一些統計距離的措施。

目標是在這個項目隱藏調查計劃，提供可證明的安全事實之間的訊息和隱藏訊息分配，而宣傳高增長率。