Method and apparatus for detecting changes between heterogeneous image data for identifying disaster damage

An apparatus for detecting a change between heterogeneous image data, the apparatus comprising:

• a communication unit configured to externally transmit and receive a signal;
• a memory configured to store at least one instruction;
• and
• a processor configured to execute the at least one instruction stored in the memory,
• wherein the processor is further configured to:
• obtain observation image data of an event occurrence region and reference image data that occurs before an event and has a heterogeneous type of an image from the observation image data,
• process the observation image data and the reference image data according to an attribute of the observation image data and preprocess the observation image data and the reference image data to determine whether or not there is an exceptional object to be excluded from a change analysis in the processed observation image data and the processed reference image data based on an event type and to process the exceptional object, and
• detect a change area of the event occurrence region based on the preprocessed observation image data and the preprocessed reference image data.