An Overview of Ghost Artifact in HDRI

Abstract

The digital cameras can contain the limited dynamic range. At the time of capturing a scene brighter area tends to be over exposed and darker area tends to be under exposed. The High Dynamic Range Image (HDRI) consists in combining multiple images of a same scene with varying exposures. The moment of object in those LDR images is a reason for ghost artifact. The particular moving object can occur more than one place in a HDRI image, this occurrence is called as a ghost artifact. The object may be required object for that image or unnecessary object. Ghost detection and Ghost removal methods are used to produce a Ghost free HDR image.