High-Capacity Video Steganography Based on Chaotic Maps for High-Efficiency Video Coding (HEVC)

Abstract

Video steganography is a method for concealing information within a video without substantially changing its visual content. The utilization of high-definition videos has garnered considerable interest from industries. H.265/HEVC, the recent video coding technology, is a promising field for video steganography. In this paper, a high concealment capacity based on three chaotic maps for the HEVC video standard is proposed, where the confidential data will be encrypted using two chaotic maps and then concealed in randomly selected Discrete Cosine Transform (DCT) coefficients of Transform Blocks (TBs), which are also randomly chosen using one chaotic map. The technique used in the DCT domain to achieve superior embedding capacity at the same visual quality compared with the state-of-the-art schemes in the compressed domain, and the use of three novel chaotic maps to protect the secret information and get uncrackable security level are the significant contributions of this paper. The simulation findings proved that the proposed approach has an average concealing capacity reaching 41.3 Kbits/frame. This payload exceeds what recent cutting-edge techniques could achieve in 1280 x 720 video frame dimensions with a ) of -0.009 dB and a Bit Rate Increase (BRI) of 0.0747 at a Quantization Parameter (QP) value of 32. Furthermore, the critical space size of the suggested scheme is , which makes it very secure against all types of brute-force attacks.

Keywords

• Chaotic maps
• Discrete Cosine Transform
• High-Efficiency Video Coding
• High capacity
• Intra-prediction
• Video steganography