Technology for de-identifying and restoring personal information in encryption key-based image

An image processing system for de-identifying and restoring image information, comprising:

• at least one processor configured to execute computer-readable instructions included in a memory,
• wherein the at least one processor is configured to
• detect at least one object information area in image information;
• de-identify the detected object information area by using an encryption key generated in relation to the detected object information area;
• and
• restore the de-identified object information area by using the encryption key,
• wherein the at least one processor is configured to de-identify the detected object information area such that the de-identified object information area is classified differently in accordance with a type of an object included in the object information area,
• wherein the at least one processor is configured to classify an object included in the restored object information area depending on a type of the restored object information area.

An image processing method for de-identifying and restoring image information, which is performed by an image processing system, comprising:

• detecting at least one object information area in image information;
• de-identifying the detected object information area by using an encryption key generated in relation to the detected object information area;
• and
• restoring the de identified object information area by using the encryption key,
• wherein the de-identifying comprises de-identifying the detected object information area such that the de-identified object information area is classified differently in accordance with a type of an object included in the object information area,
• wherein the detecting comprises detecting a plurality of object information areas in the image information, and
• the image processing method further comprises
• grouping the object information areas into at least two groups based on a preset criterion, and
• wherein a different encryption key is assigned to each of the two groups as the encryption key for an object information area included said each of the two groups.