Video encryption

摘要

The present invention provides a method of minimizing the computation requirements involved in transmitting video images. By encrypting only a select portion of the transmitted data the transmission rate is improved without compromising privacy and still thereby reducing the compute time requirements. Wavelet-transform is repeatedly applied to a pixel matrix until a smooth coefficient matrix is achieved. The smooth coefficient matrix is necessary to regenerate the transmitted image at the receiving end. Only a single value of the smooth coefficient matrix is encrypted, thereby increasing the transmission rate of the entire image.