Mining concept relationship in temporal context for effective video annotation

We propose a new method to boost the performance of video annotation by exploiting concept relationship in temporal context. The motivation of our idea mainly comes from the fact that temporally continuous shots in video are generally with consistent content, so that concepts in these shots should be semantically relevant. We utilize a temporal model to describe the contributions of relevant concepts to the presence of a target concept. By connecting our model with conditional random field and adopting the learning and inference approaches of it, we could obtain the refined probability of a concept occurring in the shot, which is the leverage of temporal context and initial output of video annotation. Experimental results on the widely used TRECVID dataset exhibit the effectiveness of our method for improving video annotation accuracy. Copyright 2011 ACM.EI