Remote detection of insect infestation

A method comprising:

• in a first time epoch, capturing first oblique aerial imagery of a plurality of trees;
• in a second time epoch, capturing second oblique aerial imagery of the plurality of trees;
• identifying a subset of the plurality of trees that are in a second state of bark beetle attack, based on tree health data obtained in the second time epoch;
• updating a bark beetle detector based on at least some results of the identifying and at least tree trunk information from the first oblique aerial imagery;
• detecting which of the plurality of trees are in a first state of bark beetle attack, based at least in part on information from the second oblique aerial imagery and using the updated bark beetle detector;
• and
• wherein the second time epoch occurs a time delay after the first time epoch, and the time delay is sufficient for at least some of the plurality of trees of the first state to transition to trees of the second state.

A tangible computer readable medium having a set of instructions stored therein that when executed by a processing element cause the processing element to perform and/or control operations comprising:

• in a first time epoch, capturing first oblique aerial imagery of a plurality of trees;
• in a second time epoch, capturing second oblique aerial imagery of the plurality of trees;
• identifying a subset of the plurality of trees that are in a second state of bark beetle attack, based on tree health data obtained in the second time epoch;
• updating a bark beetle detector based on at least some results of the identifying and at least tree trunk information from the first oblique aerial imagery;
• detecting which of the plurality of trees are in a first state of bark beetle attack, based at least in part on information from the second oblique aerial imagery and using the updated bark beetle detector;
• and
• wherein the second time epoch occurs a time delay after the first time epoch, and the time delay is sufficient for at least some of the plurality of trees of the first state to transition to trees of the second state.