A new visual cryptography scheme of two secret images, which is named the shift visual cryptography of two secret images, is given. The compound function family of a general construction model is also
The South China Sea (SCS) is one of the largest marginal seas in the western Pacific. Its northern part has the features of a passive continental margin. The studies of deep crustal structure in this
Based on remote sensing data and models, spatial distribution of the monthly euphotic depth in the East China Sea in 1998 has been obtained. The character of the seasonal changes of the euphotic depth
This paper introduces two steps to design a quantizer of H.261 CODEC: the first step is to implement the coarse quantizing through control algorithm for the buffers occupation ratio; the second step i
Computer vision systems have an impressive spread both for their practical application and for theoretical research. The common approach used in such systems consists of a good segmentation of moving