Intel Corporation

Aveek Purohit

Xue Yang

Lei Yang

Yang Lei

A method of determining landmarks includes receiving, at a computing system, a plurality of potential landmark measurements and corresponding signal measurements. The method further includes determining, at the computing system, a plurality of landmark candidates from the plurality of potential landmark candidates and corresponding signal measurements. The method further includes determining a normalized signal distance between a first signal measurement corresponding to a first landmark candidate of the plurality of landmark candidates and a second signal measurement corresponding to a second landmark candidate of the plurality of landmark candidates. The method further includes determining, at the computing system, that the first landmark corresponds to the second landmark based on the normalized signal distance.

Systems and methods for detection of magnetic and motion-based landmarks

A method of detecting a revisit position includes receiving at a computing system a plurality of position data points, each of the plurality of position data points including a signal scan measurement. The method farther includes calculating a first signal distance between a first signal scan measurement corresponding to a first position data point of the plurality of position data points and a second signal scan measurement corresponding to a second position data point of the plurality of position data points. The method further includes determining that the first signal distance is less than a first threshold, that the first signal distance is a local minimum for the first position data point, and the first signal distance is a local minimum for the second position data point. The method further includes, based on the determining, identifying the first and second position data points as revisit points.

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Aveek Purohit