Coding the Corpus
Coding the Corpus Overview
The videos collected from parents were screened for privacy and accidental recordings (1.5% of total recording) and those sections were subsequently removed from the dataset.
Trained coders used one of two techniques to answer specific research questions about infant experiences like, "What proportion of the recording contained footage of human faces?" or, "What do the visual scenes of mealtimes look like?"
Continuous video: Coders would watch the videos and annotate segments of interest. These segments would in turn be coded for more specific questions.
Down-sampled images: Videos were converted to images which were in turn selected at specific time intervals (typically one image selected from every 5 seconds of video). Coders would annotate each image to answer specific questions.
The corpus coding is an ongoing process and changes with each major research question that we ask. Research papers based on this project contain detailed descriptions of how we coded for each research questions.
Homeview Corpus Information
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The Corpus
The corpus, with over 500 hours of head camera video promises new insights into the natural statistics of visual experiences for visual development generally, for visual object recognition, for human face perception, and for object name learning.
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The Head Camera
Recording the availability of faces in infants' everyday environments requires a method that is not disruptive of those daily environments. Accordingly, we use a wearable camera that was lightweight, cable-free, attached to daily-wear hats, and easy for parents to use.
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Procedure
In a pre-visit, parents were informed about the goal of the study, consent was obtained, and they were instructed to use the camera. A hat was selected and fit to the child. Subsequently, the materials were delivered to the infant's home and the parents were reinstructed in the use of the camera.
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Coding the Corpus
The videos collected from parents were screened for privacy and accidental recordings (1.5% of total recording) and those sections were subsequently removed from the dataset.
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Sample Data
These videos were obtained in the home setting. See how selective our momentary view of the world is and how it changes with development.