Review on Video Privacy Protection

Abstract

With the rapid development of video processing technology and the continuous reduction of hardware costs,surveillance equipment has become more and more widely used.The leakage of privacy issues brought about by the popularity of video surveillance has gradually become a research hotspot.According to the current research status in this field,video privacy protection methods are mainly divided into three stages:privacy subject identification,privacy subject protection and privacy information management.Each stage algorithm is classified and summarized,and its advantages and disadvantages are analyzed.The privacy region protection is an important part of this field.The protection methods are analyzed and compared in connection with the development of video coding.Finally,the existing problems in the field of video privacy protection are discussed,and the future research direction is prospected,which provides a reference for the related research of video privacy protection.

Keywords

• video encryption|privacy region extraction|privacy protection|video coding|data hiding