Identifying Device Brand by Using Characteristics of Color Filter Array

Tang You Chang, Guo Shiang Lin, Shen-Chuan Tai

研究成果: Chapter


In this paper, we propose a passive scheme for photorealistic com-puter generated image (PRCG) identification and device brand classification. To this end, a periodic phenomenon of variance of pixel values resulting from demosaicing process is analyzed in RGB color space. Based on the phenome-non, the proposed scheme is composed of color space transformation, high-pass filtering, feature extraction, and classification. To make the phenomenon ob-vious, a high-pass filter is performed. The periodic phenomenons in different directions are measured as features in the Fourier domain and combined with a hierarchical classifier for PRCG detection and brand identification simulta-neously. Experimental results show that our proposed scheme can not only detect photographic images (PIM) but also determine what brand of a camera is used.

主出版物標題Advances in Intelligent Systems and Applications - Volume 2
主出版物子標題Proceedings of the International Computer
編輯Chang Ruay-Shiung, Peng Sheng-Lung, Lin Chia-Chen
出版狀態Published - 2013 六月 28


名字Smart Innovation, Systems and Technologies


All Science Journal Classification (ASJC) codes

  • Decision Sciences(all)
  • Computer Science(all)


Chang, T. Y., Lin, G. S., & Tai, S-C. (2013). Identifying Device Brand by Using Characteristics of Color Filter Array. 於 C. Ruay-Shiung, P. Sheng-Lung, & L. Chia-Chen (編輯), Advances in Intelligent Systems and Applications - Volume 2: Proceedings of the International Computer (頁 349-358). (Smart Innovation, Systems and Technologies; 卷 21).