Affective content detection in sitcom using subtitle and audio

From a personalized media point of view, many users favor a flexible tool to quickly browse the affective content in a video. Such affective content may cause audiences´ strong reactions or special emotional experiences, such as anger, sadness, fear, joy and love. This paper attempts to extract affective content for digital videos by analyzing the subtitle files of DVD/DivX videos and utilize audio event to assist affective content detection. Firstly, videos are segmented by dialogue script partition. Compared to traditional video shot, video segmented by scripts is not affected by camera changes and shooting angles and easy to include video segments with compact content. Secondly, emotion-related vocabularies in video script are detected to locate affective video content. Using script to directly access video content avoids complex video analysis. Thirdly, audio event detection is utilized to assist affective content detection. Compared with traditional video semantic analysis, affective content analysis puts much more emphasis on the audience´s reactions and emotions. Initial experiments are carried on sitcom videos because its simple video structure provides useful domain knowledge. The experimental results demonstrate that subtitle file analysis and audio event detection provides effective and efficient clues to determine the emotional content of the videos