Context of tracking and optical flow

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In the context of tracking and optical flow, explain the "aperture problem" and how it is mitigated?

In small image regions, true motions can be ambiguous if the image content is flat or one-dimensional. Reasoning about larger windows or only tracking corners reduces the ambiguity.

Tracking and optical flow is ambiguous with simple intensity features. Using color and texture descriptors mitigates the aperture problem.

Without knowing the parameters of the camera aperture, tracking and optical flow are fundamentally ambiguous. Camera calibration eliminates the ambiguity.

The "aperture problem" is an illusion specific to human perception of motion. The illusion does not need to be mitigated by tracking algorithms.

Reference no: EM133266180

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