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情境感知移动多媒体服务是借助智能移动设备(如手机、Ipad等)为用户提供丰富的多媒体信息服务。情境感知移动多媒体系统需要应对高度动态的环境和不断变化的用户需求,文章提出情境感知移动多媒体服务系统的结构框架,允许不同实体在移动环境下处理情境,提供自适应的个性化服务。以本体作为情境模型,将不同各领域之间的不同相关信息进行情境概念的形式化描述和限制。情境感知移动多媒体服务应用前景非常可观,其应用领域包括旅游指南、移动广告、情境感知主动新闻服务等。但在提供服务过程中,有些问题尚待解决,如个人隐私保护、移动设备的硬件等限制了其潜在应用,为此我们可尝试引入云计算技术,提高移动多媒体服务的质量。
Context-aware mobile multimedia services provide rich multimedia information services to users through smart mobile devices (such as mobile phones, Ipad, etc.). Context-aware mobile multimedia systems need to cope with highly dynamic environments and changing user needs. The article proposes a framework for context-aware mobile multimedia services systems, allowing different entities to handle situations in a mobile environment and provide adaptive personalization services. Using ontology as a model of situation, formally describing and restricting the different contexts of different relevant information in different fields. Situation-aware Mobile multimedia services are promising applications, including travel guides, mobile advertising, situational awareness of active news services. However, in the process of providing services, some problems remain to be solved. For example, personal privacy protection and the hardware of mobile devices have limited their potential applications. Therefore, we can try to introduce cloud computing technology to improve the quality of mobile multimedia services.