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Learning to Recognize Daily Actions Using Gaze

机译:学习使用注视识别日常行为

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We present a probabilistic generative model for simultaneously recognizing daily actions and predicting gaze locations in videos recorded from an egocentric camera. We focus on activities requiring eye-hand coordination and model the spatio-temporal relationship between the gaze point, the scene objects, and the action label. Our model captures the fact that the distribution of both visual features and object occurrences in the vicinity of the gaze point is correlated with the verb-object pair describing the action. It explicitly incorporates known properties of gaze behavior from the psychology literature, such as the temporal delay between fixation and manipulation events. We present an inference method that can predict the best sequence of gaze locations and the associated action label from an input sequence of images. We demonstrate improvements in action recognition rates and gaze prediction accuracy relative to state-of-the-art methods, on two new datasets that contain egocentric videos of daily activities and gaze.
机译:我们提出了一个概率生成模型,用于同时识别日常行为并预测以自我为中心的相机录制的视频中的凝视位置。我们专注于需要眼手协调的活动,并为凝视点,场景对象和动作标签之间的时空关系建模。我们的模型捕获了这样一个事实,即视觉特征和对象出现在注视点附近的分布与描述动作的动词-对象对相关。它明确地结合了心理学文献中的凝视行为的已知属性,例如注视和操纵事件之间的时间延迟。我们提出一种推理方法,该方法可以从图像的输入序列中预测最佳的凝视位置序列和相关的动作标签。我们在两个包含日常活动和注视的自我中心视频的新数据集上,证明了相对于最新方法的动作识别率和注视预测准确性的提高。

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