Micro-saccadic actuation for an event camera
First Claim
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1. An imaging device, comprising:
- a dynamic vision sensor including a pixel array; and
an optical pathway modulator to move, via a micro-saccadic movement, one or more components of an optical pathway to shift incident light on the pixel array to cause a change in light intensity on at least one pixel of the pixel array, the optical pathway including the sensor and a lens, the micro-saccadic movement including a plurality of movements, each of the plurality of movements having a selected magnitude in one of a plurality of selected directions.
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Abstract
Methods, apparatus, systems and articles of manufacture are disclosed relating to micro-saccadic actuation for an event camera. An example event-based imaging device includes a sensor including a pixel array and an optical pathway modulator to move, via a micro-saccadic movement, one or more components of an optical pathway including the sensor to shift incident light on the pixel array to cause a change in light intensity on the pixel in at least one pixel of the pixel array.
7 Citations
12 Claims
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1. An imaging device, comprising:
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a dynamic vision sensor including a pixel array; and an optical pathway modulator to move, via a micro-saccadic movement, one or more components of an optical pathway to shift incident light on the pixel array to cause a change in light intensity on at least one pixel of the pixel array, the optical pathway including the sensor and a lens, the micro-saccadic movement including a plurality of movements, each of the plurality of movements having a selected magnitude in one of a plurality of selected directions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An imaging device, comprising:
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an optical pathway including a dynamic vision sensor, a lens, and a deflector between the lens and the dynamic vision sensor, the dynamic vision sensor including a pixel array; and an optical pathway modulator to move, via a micro-saccadic movement, one or more components of the optical pathway to shift light to cause a change in light intensity on at least one pixel of the pixel array, the optical pathway modulator to cause a first actuator to implement a micro-saccadic movement of the lens along a first direction, to cause a second actuator to implement a micro-saccadic movement of the lens along a second direction, to cause a third actuator to implement a micro-saccadic movement of the dynamic vision sensor along a third direction, and to cause a fourth actuator to implement a micro-saccadic movement of the dynamic vision sensor along a fourth direction, wherein the first direction and the second direction are in a first plane, and wherein the third direction and the fourth direction are in a second plane.
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11. An edge detection method, comprising:
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moving a lens of an optical pathway in a first direction via a first micro-saccadic movement; moving the lens in a second direction via a second micro-saccadic movement; moving at least one of a dynamic vision sensor or a deflector in a third direction via a third micro-saccadic movement; moving the at least one of a dynamic vision sensor or the deflector in a fourth direction via a fourth micro-saccadic movement; sensing changes in light intensity on a pixel array of the dynamic vision sensor responsive to the micro-saccadic movements; and outputting the changes in light intensity and times of occurrence of the changes in light intensity. - View Dependent Claims (12)
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Specification