Information processing system, information processing device, and information processing method

A survey marker, comprising:

• a global navigation satellite system (GNSS) receiver that receives a signal from a GNSS satellite;
• and
• the survey marker has a predetermined shape and including at least two areas with different properties from one another, wherein
• the at least two areas have a different reflectivity from one another,
• a ground position of the survey marker is measured by the signals received on the GNSS receiver,
• the survey marker is detectable based on the different properties of the at least two areas,
• a position of the survey marker, in an image that includes the survey marker, is associated with the ground position,
• the at least two areas include a first area and a second area,
• the predetermined shape further includes a third area and a fourth area,
• the third area has a same reflectivity as the first area,
• the fourth area has a same reflectivity as the second area,
• the first area, the second area, the third area and the fourth area each has a quadrangle shape,
• the first area borders the second area and the fourth area, and
• the third area borders the second area and the fourth area.