Moment techniques are an important research area and have been widely used in image processing and analysis such as pattern recognition

pattern matching

image compression

digital watermarking and so on For helping the researche rs to have a general understanding in this technique this paper presents a survey of recent and traditional moment techniques in image analysis It discusses various types of moments

especially some fundamental aspects of discrete orthogonal moments

such as computation capacity

reconstruction accuracy

and invariance etc in detail Open issues and possible future research direction are also pointed out