静态物体空间关系的视角转换研究

发布时间：2018-03-09 13:41

本文选题：空间视角转换　切入点：虚拟人场景任务　出处：《浙江理工大学》2017年硕士论文　论文类型：学位论文

【摘要】：空间视角转换是指在空间中采用他人的视角判断物体的空间关系,即观察者根据当前视角已经观察到的信息,想象从另一个角度判断目标物体相对于虚拟人的位置或物体与物体之间的位置关系。本研究尝试从物体与物体间位置关系的角度探讨空间视角转换的认知特点,有助于丰富人类空间视角转换知觉规律的研究,研究得出的知觉特点有利于协同任务作业、物体遥操作等复杂界面的设计,提高操作者在此类界面中的操作效率。本研究将物体间的构型分为三种:少量(2个)物体构成的规则构型、多个(4个)物体构成的规则构型和多个(4个)物体构成的不规则构型,并设计了三个对应的实验分别探讨这三种构型下物体之间位置关系判断的视角转换认知规律。研究方法均为基于虚拟人场景的空间视角转换任务,被试需要想象在虚拟人的角度观察,然后判断目标物相对于其他物体的具体位置(具体到“左前”、“右后”),从而探讨不同的想象角度、物体数量和物体构型对观察者视角转换绩效的影响。实验结果得出:(1)被试在2个物体规则构型、4个物体规则构型和4个物体不规则构型三种构型条件下的位置判断绩效随角度增加均没有出现逐步上升或者逐步下降的趋势。在视角转换条件下,相对于0度视角,在想象的虚假视角位置上,被试对物体之间位置关系的判断绩效有明显的下降,而且想象位置的视角不同,被试的判断绩效有明显的不同。(2)被试在三种构型条件下的视角转换绩效均存在正斜差异,正视角条件下被试的判断绩效好于斜视角。(3)规则构型下,物体数量增多时,被试的位置关系判断时间变慢,但在斜视角的判断正确率明显提升。(4)4个物体条件下,物体构型由规则变为不规则时,被试反应时变快,正视角正确率上升,即不规则的构型下被试的视角转换绩效更好。
[Abstract]:The conversion of spatial perspective refers to the use of the perspective of others in space to judge the spatial relationship of objects, that is, the information already observed by the observer according to the current perspective. Imagination judges the position of the target object relative to the virtual human or the position relationship between the object and the object from another angle. This study attempts to explore the cognitive characteristics of the spatial perspective transformation from the perspective of the position relationship between the object and the object. It is helpful to enrich the research on the perceptual law of human spatial perspective transformation. The characteristics of perception obtained from the study are conducive to the design of complex interfaces such as cooperative task operations, object teleoperation, and so on. In this study, the configuration of objects is divided into three types: a small number of (2) objects composed of regular configuration, A regular configuration of multiple (4) objects and an irregular configuration of multiple (4) objects, Three corresponding experiments are designed to explore the cognitive law of visual angle conversion in the judgment of position relationship between objects under these three configurations. The research methods are based on the virtual human scene of spatial angle of view conversion task. The subjects were asked to visualize the specific position of the object in relation to other objects ("left front", "right posterior"), and then to explore the different angles of imagination. The effect of the number of objects and the configuration of objects on the performance of the observer's angle of view conversion. The experimental results show that the positions of the subjects are determined under the conditions of two regular configurations of objects, four regular configurations of objects and three configurations of irregular configurations of objects. With the increase of angle, there is no trend of gradual increase or decline of performance. Under the condition of changing angle of view, Compared with the zero angle of view, the subjects' performance in judging the position relationship between the objects was obviously decreased, and the visual angle of the imaginary position was different from that of the imaginary position. There were significant differences in the judgment performance of the subjects under the three configuration conditions. The results showed that the performance of the subjects under the positive angle of view was better than that under the regular configuration of the oblique angle. When the number of objects increased, there were significant differences in the number of objects in the three configurations. When the object configuration changed from regular to irregular, when the object configuration changed from regular to irregular, the reaction time changed quickly, and the correct rate of positive angle increased, but the accuracy rate of squint angle increased significantly when the judgment time of the position relation of the subjects became slower, and the correct rate of the positive angle of view increased when the object configuration changed from regular to irregular. That is to say, the performance of angle of view conversion is better under irregular configuration.
【学位授予单位】：浙江理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：B842

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