Comparison of perceptions of computer-animated left- and right-facing profiles.
Comparison of perceptions of computer-animated left- and right-facing profiles.
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计算机动画左面和右面轮廓的感知比较。
DOI：
10.1111/j.1532-849x.1999.tb00015.x
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发表时间：
1999
期刊：
影响因子：
--
通讯作者：
Giddon,DB
中科院分区：
文献类型：
--
作者：
Anderson,NK;Evans,CA;Giddon,DB
目的尽管科学出版物在显示左面或右面轮廓方面有所不同，但很少有系统研究关于方向偏差和偏侧性对患者和临床医生对治疗需求、结果和满意度的看法可能产生的影响。作为量化感知可接受区域和最令人愉悦的面部轮廓的物理基础的研究计划的一部分，对计算机动画的左面和右面软组织轮廓图像的反应进行了比较，并将其与眼睛和手的偏好相关联。材料和方法以彩色和数字化方式捕获标准化的左面软组织轮廓图像。右侧轮廓是通过反转左侧轮廓图像以显示镜像而创建的。使用成像和定制的变形软件，创建了后缩和前凸的极端，并从中开发了过渡框架来显示软组织轮廓的五个特征：上唇、下巴、双颌位置、下脸高度和下颌骨。将 II 类 1 类女性和 III 类男性的一张左面和一张右面侧面影像随机呈现给 24 名受试者，要求受试者指出：1）通过按下鼠标按钮表示可接受性，当图像不再可接受时释放按钮； 2) 按下鼠标按钮一次，获得最令人愉悦的图像。结果左、右侧面图像之间的可接受区域、可接受区域中点或最令人愉悦的图像没有发现差异；与偏侧性措施也没有任何关系。然而，对于以毫米为单位测量的后退到突出以及突出到后退偏移，左侧轮廓的可接受区域特征之间的相互相关性始终高于右侧轮廓的相关性 (p< .001)。双颌位置在可接受性判断中占了大部分差异，对左侧轮廓的影响大于对右侧轮廓的影响。结论随着计算机成像在牙科实践中的使用越来越多，必须考虑心理物理和其他环境变量对感知的影响。
PurposeAlthough scientific publications differ in displaying left‐ or right‐facing profiles, there are few systematic studies of the possible effects of directional biases and laterality on patients' and clinicians' perceptions of treatment need, outcomes, and satisfaction. As part of a research program to quantitate the physical bases of the perceived zone of acceptability and most‐pleasing facial profiles, responses to computer‐animated left‐ and right‐facing soft‐tissue profile images were compared and related to eye and hand preference.Materials and MethodsStandardized left‐facing, soft‐tissue profile images were captured in color and digitized. The right‐facing profile was created by reversing the left profile image to display a mirror image. Using imaging and customized morphing software, retrusive and protrusive extremes were created, from which transitional frames were developed to display five features of the soft‐tissue profile: upper lip, chin, bimaxillary position, lower face height, and mandible. One left‐ and one right‐facing profile for a Class II division 1 female, and Class III male were randomly presented to 24 subjects who were asked to indicate: 1) acceptability by pressing a mouse button and releasing the button when the images were no longer acceptable; and 2) most‐pleasing image by pressing the mouse button once.ResultsNo differences were found between left‐ and right‐profile images for zone of acceptability, midpoint of the zone of acceptability, or most pleasing; nor was there any relation to laterality measures. However, consistently higher intercorrelations among the features for the zone of acceptability were found for the left‐ than for the right‐facing profiles for retrusive to protrusive and protrusive to retrusive excursions measured in millimeters (p< .001). The bimaxillary position accounted for most of the variance in judgments of acceptability with greater influence on the left than on the right profile.ConclusionWith the increasing use of computer‐imaging in dental practices, the influence of psychophysical and other environmental variables on perception must be considered.
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