基于智能虚拟摄影机的用户视觉意象研究

发布时间：2018-08-24 07:53

【摘要】：虚拟摄影机是在三维虚拟世界中所架设的摄影机，相当于用户在虚拟世界中的数字化眼睛。虚拟摄影机的出现，为视觉技术带来新的契机，使人们构造“智能”人眼的梦想出现了曙光。虚拟摄影机的智能化发展是视觉技术发展的必然选择。从照相机、摄影机再到虚拟摄影机，视觉技术正在转向模拟人类视知觉生理与心理流程，将所视物体的视觉意象数字化的智能视觉技术系统。视觉信息模型，是为了构建用户在虚拟世界中视觉信息，包括三个方面：视锐度、视野、色视觉。个体生理特征的差异，使用户对相同客体产生不同视觉信息，是视觉信息模型差异的主体因素。正因如此，基于用户个体生理信息驱动的虚拟摄影机再现用户的视觉意象，从而构造用户的视觉意象空间，虚拟摄影机便具有了虚拟人眼的智能性。智能虚拟摄影机对视觉意象的直观化方式，按照人类视觉意象形成的三个阶段进行的，包括身体感知、心理加工和精神再创造。它所呈现的这种数字化意象空间不仅体现了与虚拟空间具有关联性，也体现了对虚拟空间的创造性。在这种空间形式下，用户的感知方式必然得到重建。通过基于用户体验的测试结果可见，智能化虚拟摄影机不仅满足了用户具身化交互的诉求，也满足了用户视觉意象直观化的诉求。为用户带来愉悦性的情感体验和沉浸的交互体验。综上所述，，智能虚拟摄影机的发展，表征着视觉技术开始进入了一个构建人类视觉智能的新阶段，传统的视觉技术系统添加智能化的模块，以用户的生理心理信息驱动虚拟摄影机进行观看，才有可能逐渐构建起具有个体生命特征的空间形式——意象空间与虚拟空间的关联，实现人与物体、人与他人之间意识层面的交流活动，进而颠覆并重构人类的视觉感知方式。
[Abstract]:Virtual camera is a camera set up in 3D virtual world, which is equivalent to the digital eye of user in virtual world. The emergence of virtual cameras brings new opportunities for visual technology and makes the dream of constructing "intelligent" human eyes appear at dawn. The intelligent development of virtual camera is the inevitable choice of visual technology development. From cameras, cameras to virtual cameras, visual technology is turning to an intelligent visual technology system that simulates the physiological and psychological processes of human visual perception and digitizes the visual images of the objects viewed. Visual information model is to construct visual information in virtual world, which includes three aspects: visual acuity, visual field and color vision. The difference of individual physiological characteristics, which makes users produce different visual information to the same object, is the main factor of the difference of visual information model. Because of this, the virtual camera based on the user's individual physiological information reproduces the user's visual image, thus constructs the user's visual image space, and the virtual camera has the intelligence of the virtual human eye. The visual image is visualized by the intelligent virtual camera according to the three stages of the formation of human visual image, including body perception, psychological processing and mental re-creation. The digital image space not only reflects the relationship with the virtual space, but also embodies the creativity of the virtual space. In this spatial form, the user's perception must be reconstructed. Through the test results based on user experience, it can be seen that the intelligent virtual camera not only meets the demands of user interaction, but also meets the demand of visual image visualization. Bring users pleasant emotional experience and immersive interactive experience. To sum up, the development of intelligent virtual camera indicates that visual technology has begun to enter a new stage of constructing human visual intelligence. Traditional visual technology systems add intelligent modules. Only when the virtual camera is driven by the physiological and psychological information of the user, can it be possible to gradually construct the relationship between the image space and the virtual space, which has the characteristics of individual life, so as to realize the relationship between people and objects. The communication between human beings and others on the level of consciousness, thus subverting and reconstructing human visual perception.
【学位授予单位】：哈尔滨工业大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TB853.1

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