Results 231 to 240 of about 35,423 (257)

BBC++: Enhanced Block Boundary Continuity on Defining Non-Additive Distortion for JPEG Steganography

IEEE Transactions on Circuits and Systems for Video Technology, 2021
Recently, Li et al. proposed an effective non-additive distortion model for JPEG steganography by preserving Block Boundary Continuity (BBC) in the spatial domain. However, the method based on BBC only explored how the modifications of DCT coefficient pairs at the same mode in adjacent blocks will impact on BBC.
Yaofei Wang, Weixiang Li, Weiming Zhang 0001, Xinzhi Yu, Kunlin Liu, Nenghai Yu   +5 more
openaire   +3 more sources

Derivative-Based Steganographic Distortion and its Non-additive Extensions for Audio

IEEE Transactions on Circuits and Systems for Video Technology, 2020
Steganography is the art of covert communication, which aims to hide the secret messages into cover medium while achieving high undetectability. To this end, the framework of minimal distortion embedding is widely adopted for adaptive steganography, where a well-designed distortion function is significant. In this paper, inspired by the phenomenon that
Kejiang Chen, Hang Zhou 0007, Weixiang Li, Kuan Yang, Weiming Zhang 0001, Nenghai Yu   +5 more
openaire   +3 more sources

An Adaptive IPM-Based HEVC Video Steganography via Minimizing Non-Additive Distortion

IEEE Transactions on Dependable and Secure Computing, 2023
Jie Wang 0031, Xuemei Yin, Yifang Chen 0002, Jiwu Huang, Xiangui Kang   +4 more
openaire   +3 more sources

NACA: A Joint Distortion-Based Non-Additive Cost Assignment Method for Video Steganography

IEEE Transactions on Dependable and Secure Computing, 2022
Yi Chen, Zoran Salcic, Hongxia Wang, Kim-Kwang Raymond Choo, Xuyun Zhang   +4 more
openaire   +3 more sources

Design against distortion for additive manufacturing [PDF]

Additive Manufacturing, 2019
This paper presents the methodology and findings of a novel piece of research with the purpose of understanding and mitigating distortion caused by the combined processes of additive manufacturing (AM) and post machining to final specifications.
Shanmukha Moturu, Shukri Afazov
exaly   +3 more sources

Fabrication sequence optimization for minimizing distortion in multi-axis additive manufacturing [PDF]

Computer Methods in Applied Mechanics and Engineering, 2023
Additive manufacturing of metal parts involves phase transformations and high temperature gradients which lead to uneven thermal expansion and contraction, and, consequently, distortion of the fabricated components.
Weiming Wang, Fred Van Keulen, Jun Wu
exaly   +5 more sources