콘텐츠 본문
논문 해외 국제전문학술지(SCI급) Robust Template-Based Watermarking for DIBR 3D Images
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2018-06
- 저자명 장한얼
- 학술지명 APPLIED SCIENCES-BASEL
- 발행처명 MDPI
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 4
논문 초록 (Abstract)
Several depth image-based rendering (DIBR) watermarking methods have been proposed, but they have various drawbacks, such as non-blindness, low imperceptibility and vulnerability to signal or geometric distortion. This paper proposes a template-based DIBR watermarking method that overcomes the drawbacks of previous methods. The proposed method exploits two properties to resist DIBR attacks: the pixel is only moved horizontally by DIBR, and the smaller block is not distorted by DIBR. The one-dimensional (1D) discrete cosine transform (DCT) and curvelet domains are adopted to utilize these two properties. A template is inserted in the curvelet domain to restore the synchronization error caused by geometric distortion. A watermark is inserted in the 1D DCT domain to insert and detect a message from the DIBR image. Experimental results of the proposed method show high imperceptibility and robustness to various attacks, such as signal and geometric distortions. The proposed method is also robust to DIBR distortion and DIBR configuration adjustment, such as depth image preprocessing and baseline distance adjustment.
