Image collection system and image collection method

An image collection method that is executed by a computer having a processor and a memory, comprising:

• a captured-image analysis step of determining whether a captured image, captured by a camera mounted on a mobile object, of surroundings of the mobile object is a first captured image including an image portion of a specified monitoring target object;
• an image-capturing-condition recognition step of recognizing a first image-capturing condition that is an image-capturing condition at a time when the camera captures the first captured image;
• a monitoring-target-object-information providing step of transmitting monitoring-target-object image information in which the first captured image and the first image-capturing condition are associated with each other, to a specified provision destination;
• a necessary-image-capturing-condition setting step of setting a necessary image-capturing condition based on a type and a monitoring purpose of the specified monitoring target object;
• and
• a captured-image selection step of selecting, out of a plurality of the first captured image, a second captured image in which the first image-capturing condition satisfies the necessary image-capturing condition, wherein
• the processor,
• in the function of the necessary-image-capturing-condition setting step, according to a setting table stored in the memory in advance, sets the necessary image-capturing condition to determine whether the plurality of the first captured image is the second captured image that can be used for monitoring, the setting table including the type and the monitoring purpose of the specified monitoring target object, the image-capturing condition, and the specified provision destination corresponding to the specified monitoring target object, and
• in the function of the monitoring-target-object-information providing step, transmitting, to the specified provision destination, the monitoring-target-object image information on the second captured image which is determined, in the function of the captured-image selection step, as the second captured image.