Research On Remote Interactions Technology Based On Artificial Emotion

The rapid development of modern science and technology has provided a wealth of real-time remote interaction for people. It can be divided into three categories: text communications, voice communications and video communications according to different media of carrying information.Text communications consums less bandwidth, however it carries less information, thus it is difficult for the user to understand each other's true intentions sometimes. The interactive efficiency of video communications is the best, but it takes up nore bandwidth, which easily leads to network congestion and reduces the quality of video interaction.In this thesis, the communication of using the text as a medium is adopted in order to meet the fast, efficient and interesting long-range need of interactive technology, which is based on the technologies of visual speech synthesis, virtual reality, and affective computing to realize that using 3D virtual human to achieve the user's remote presence in a virtual environment, and which is based on cloud theory to control the movements of 3D virtual human, who can express vividly the hidden emotions, intentions and other interactive information in the context so as to enrich the remote experience ofthe user. The experimental results show that the effect is better than that of before.This thesis includes four main areas:Firstly, we summarized the classification model of human interaction intentions, which was divided into 16 categories. For each category, the nonverbal expression models based on body movements was designed, which provided theoretical basis for the accurate extraction of the human interaction intention implicit in text information and the realization of the image expression of the limb motion.Secondly, we gave the limb movement control model based on the characteristic parameters, refined the characteristic parameters of the body motion of the virtual human, and synthetized a more natural, and lifelike limbs motion effect.Thirdly, we proposed uncertainty control algorithm based on virtual people?s limb movement which was based on cloud theory and realized the reasonable parameters control of the action of the bow, shaking head and others, which increased the diversity of the body movements of the virtual human, and enhanced the simulation of the action.At last, we designed and implemented the prototype system of"remote interactive system based on artificial emotion", which has the basic functions of remote connection, speech synthesis, a brief identification of non-verbal information, the uncertainty control and synthesis of the action of bow, shaking head,etc.