tailieunhanh - Designing Sociable Robots phần 8

Hình 10,12 phác thảo được sử dụng trong đánh giá, thích nghi từ Faigin (1990). Các nhãn là dành cho mục đích trình bày ở đây, trong nghiên cứu này, họ đã được dán nhãn với các chữ cái khác nhau, từ một thông qua l. | 178 Chapter 10 happy I disgust repulsion sad mad pleased fear tired sly grin stern anger surprise Figure The sketches used in the evaluation adapted from Faigin 1990 . The labels are for presentation purposes here in the study they were labeled with the letters ranging from a through I. curvature at the extremes of the lips but others tried to match it to the lips in the line drawings. Occasionally Kismet s frightened grimace was matched to a smile or its smile matched to repulsion. Some misclassifications arose from matching the robot s expression to a line drawing that conveyed the same sentiment to the subject. For instance Kismet s expression for disgust was matched to the line sketch of the sly grin because the subject interpreted both as sneering although none of the facial features match. Some associated Kismet s surprise expression with the line drawing of happiness. There seems to be a positive valence communicated though Kismet s expression for surprise. Misclassifications also arose when subjects only seemed to match a single facial feature to a line drawing instead of multiple features. For instance one subject matched Kismet s stern expression to the sketch of the sly grin noting the similarity in the brows although the robot is not smiling . Overall the subjects seem to intuitively match Kismet s facial features to those of the line drawings and interpreted their shape in a similar manner. It is interesting to note that the robot s ears seem to communicate an intuitive sense of arousal to the subjects as well. Facial Animation and Expression 179 Table Human subject s ability to map Kismet s facial features to those of a human sketch. The human sketches are shown in figure . An intensity difference was explored content versus happy . An interesting blend of positive valence with closed stance was also tested the sly grin . most similar sketch data comments anger anger 10 10 Shape of mouth and eyebrows are strongest reported cues disgust

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