Based on the theoty of statistical dctection and research on distribution of dct coefficiefits , the chapter 3 proposes a robust 3d motion blind watermark detection algorithin , which is a sign correlation detection scheme 第三章基于統(tǒng)計檢測理論與dct變換系數分布的研究,提出一個魯棒的三維運動盲水印檢測算法,它是一個dct變換域上的符號相關性檢測算法。