Robust Blind Video Watermarking Against Digital Editing and Camcording

The proliferation of video applications has exacerbated digital piracy issues, notably evidenced by unauthorized video digital editing and camcording processes. While existing research has introduced robust watermarking methods to safeguard video copyrights, these methods often address specific attack scenarios, limiting their overall efficacy. To address this problem, we propose a robust blind video watermarking scheme based on Frequency-Spherical Cavity Transformation (FSCT), offering a comprehensive solution for both digital editing and camcording processes. Our approach treats the spatial and temporal aspects of the video as a 3D cube, utilizing FSCT to ensure temporal translational invariance and resilience against spatial attacks. To mitigate artifacts induced by motion characteristics, we analyze the properties of FSCT and introduce a visual quality optimization strategy, enhancing imperceptibility while ensuring robustness. Simultaneously, during extraction process, the watermark can be successfully retrieved from video camcording with only a specified time interval, eliminating the need for temporal synchronization. Through extensive experimentation, the proposed method exhibits superior robustness against digital editing and camcording compared to existing methods.