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arXiv 1210.7014cs.CV
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计算机视觉工具用于自闭症相关行为标记的无创评估

Computer vision tools for the non-invasive assessment of autism-related behavioral markers

University of Minnesota(明尼苏达大学);University of Campinas(坎皮纳斯大学);Duke University(杜克大学)

Jordan Hashemi, Thiago Vallin Spina, Mariano Tepper, Amy Esler, Vassilios Morellas, Nikolaos Papanikolopoulos, Guillermo Sapiro

摘要:

发育障碍的早期发现是儿童结局的关键,可以启动促进发育和改善预后的干预措施。对自闭症谱系障碍(ASD)的研究表明,行为标记可以在生命的第一年后期观察到。这些研究中有许多涉及广泛的逐帧视频观察和对儿童自然行为的分析。虽然非侵入性,这些方法是非常耗时的,需要高水平的观察员培训,因此,他们是不切实际的临床和大人口的研究目的。ASD的诊断措施可用于婴儿,但只有在早期诊断经验丰富的专家使用时才准确。这项工作是一个长期多学科项目的第一个里程碑,该项目旨在帮助临床医生和全科医生自动完成早期检测/测量任务。我们专注于提供计算机视觉工具,以测量和识别基于自闭症观察量表(AOSI)的ASD行为标记。特别是,我们开发的算法来衡量三个关键的AOSI活动,评估视觉注意力。我们增加了这些AOSI活动与额外的测试,分析不对称模式的无支撑步态。第一组算法涉及通过跟踪面部特征来评估头部运动,而步态分析依赖于视频中的联合前景分割和2D身体姿势估计。我们的研究结果提供了有见地的知识,以增加临床医生的行为观察从真正的临床评估。

英文摘要:

The early detection of developmental disorders is key to child outcome, allowing interventions to be initiated that promote development and improve prognosis. Research on autism spectrum disorder (ASD) suggests behavioral markers can be observed late in the first year of life. Many of these studies involved extensive frame-by-frame video observation and analysis of a child's natural behavior. Although non-intrusive, these methods are extremely time-intensive and require a high level of observer training; thus, they are impractical for clinical and large population research purposes. Diagnostic measures for ASD are available for infants but are only accurate when used by specialists experienced in early diagnosis. This work is a first milestone in a long-term multidisciplinary project that aims at helping clinicians and general practitioners accomplish this early detection/measurement task automatically. We focus on providing computer vision tools to measure and identify ASD behavioral markers based on components of the Autism Observation Scale for Infants (AOSI). In particular, we develop algorithms to measure three critical AOSI activities that assess visual attention. We augment these AOSI activities with an additional test that analyzes asymmetrical patterns in unsupported gait. The first set of algorithms involves assessing head motion by tracking facial features, while the gait analysis relies on joint foreground segmentation and 2D body pose estimation in video. We show results that provide insightful knowledge to augment the clinician's behavioral observations obtained from real in-clinic assessments.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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