Google Inc.

Emil John Feig

David Roy Schairer

Seth Isaac Glickman

Junjie Bu

Alexei Sakhartchouk

Systems and methods of detecting traffic light signal changes are disclosed. For instance, it can be determined that a user is stopped at an intersection having a traffic light. A plurality of images can be captured in response to detecting that the user is stopped at the intersection having a traffic light. The plurality of images do not depict the traffic light. A tonal shift in one or more color values associated with at least one image of the plurality of images can be detected. The tonal shift is indicative of a change in signal provided by the traffic light. A notification indicative of the change in signal provided by the traffic light can be provided to the user.

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Redwood City, CA, United States of America

Emil John Feig