Patent ID: 11863908
Assignee: HANWHA VISION CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC H

Claim 8:
9. An image processing device, comprising at least one processor configured to:
select an encryption target unit from among a plurality of units constituting an image;
generate a table including identification information about the encryption target unit;
generate a first encryption unit comprising data obtained by encrypting the encryption target unit;
generate a second encryption unit comprising data obtained by encrypting the table;
generate a bitstream comprising the first encryption unit, the second encryption unit, and units other than the encryption target unit among the plurality of units constituting the image; and
wherein the at least one processor is further configured to:
prior to the selecting the encryption target unit, select a method for selecting the encryption target unit, based on whether the image processing device satisfies a first arithmetic operation condition;
based on the image processing device satisfying the first arithmetic operation condition, select a first method in which the encryption target unit is selected based on analysis of an event in the image; and
based on the image processing device not satisfying the first arithmetic operation condition, select a second method in which the encryption target unit is selected regardless of whether the event has occurred in the image.