●●● ●●●● ●●●●● ●●●● ●●●●● Face Detection ●●●● ● Face Recognition Facial Expression Analysis ● Enrich the Xml o easier for user to search the content of video Extraction TechniquesFace Detection ⚫ Face Recognition ⚫ Facial Expression Analysis ⚫ Enrich the XML ⚫ Easier for user to search the content of video Extraction Techniques