IDENTIFICATION OF VISUAL FIXATIONS IN A VIDEO STREAM
First Claim
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1. A method for identifying a visual fixation in a video stored in a computer memory, said method comprising:
- performing, on a computer, a search to locate eye gaze coordinates in a first frame of said video;
performing, on said computer, a calculation to define a spatial region surrounding said eye gaze coordinates;
performing, on said computer, a comparison to determine if consecutive video frames have an eye gaze coordinate location within said spatial region;
electronically marking said consecutive video frames in said video;
wherein said consecutive video frames span at least a minimum fixation time and define said visual fixation.
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Abstract
A method for identifying a visual fixation in an eye tracking video including: locating eye gaze coordinates in a first frame of a video, defining a spatial region surrounding the eye gaze coordinates, identifying and marking consecutive video frames having an eye gaze coordinate location within the spatial region. Wherein the consecutive video frames span at least a minimum fixation time and define a visual fixation.
42 Citations
10 Claims
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1. A method for identifying a visual fixation in a video stored in a computer memory, said method comprising:
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performing, on a computer, a search to locate eye gaze coordinates in a first frame of said video; performing, on said computer, a calculation to define a spatial region surrounding said eye gaze coordinates; performing, on said computer, a comparison to determine if consecutive video frames have an eye gaze coordinate location within said spatial region; electronically marking said consecutive video frames in said video; wherein said consecutive video frames span at least a minimum fixation time and define said visual fixation. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method as claimed in claim 1, comprising:
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rendering said visual fixation for display on a display screen; receiving tag input from a user interface; and associating said tag input with said visual fixation by storing said tag input in computer memory. - View Dependent Claims (8, 10)
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7-1. An apparatus for identifying a visual fixation in a video stored in a computer memory, said apparatus comprising:
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an eye camera for obtaining eye video; a scene camera for obtaining scene video; a computer processor for merging said eye video and said scene video and identifying and marking visual fixations to provide a visual fixation-marked video, said visual fixation-marked video being stored in a computer memory; and a user interface for displaying said visual fixation-marked video and receiving tag input, said tag input being stored in said computer memory and being associated with said visual fixations.
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9. A method for identifying a visual fixation in a video, said method comprising:
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locating eye gaze coordinates in a first frame of said video; defining a spatial region surrounding said eye gaze coordinates; and identifying and marking consecutive video frames having an eye gaze coordinate location within said spatial region; wherein said consecutive video frames span at least a minimum fixation time and define a visual fixation.
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Specification