US 12,328,400 B2
Device and a method for signing a metadata frame corresponding to an image frame of a sequence of image frames
Xing Danielsson Fan, Lund (SE); and Niclas Danielsson, Lund (SE)
Assigned to AXIS AB, Lund (SE)
Filed by Axis AB, Lund (SE)
Filed on May 3, 2023, as Appl. No. 18/142,582.
Claims priority of application No. 22176505 (EP), filed on May 31, 2022.
Prior Publication US 2024/0007299 A1, Jan. 4, 2024
Int. Cl. H04L 9/40 (2022.01); G06T 7/70 (2017.01); G06V 10/25 (2022.01); H04L 9/08 (2006.01); H04L 9/32 (2006.01)
CPC H04L 9/3247 (2013.01) [G06T 7/70 (2017.01); G06V 10/25 (2022.01); H04L 9/0825 (2013.01); H04L 9/3236 (2013.01); G06V 2201/07 (2022.01)] 16 Claims
OG exemplary drawing
 
1. A method of signing a metadata frame corresponding to an image frame of a sequence of image frames, wherein the metadata frame comprises metadata of one or more detected objects in the image frame, wherein the metadata of each detected object comprises coordinates defining a location in the image frame of the detected object, the method comprising:
generating a digital signature based on at least a subset of the metadata in the metadata frame; and
adding additional metadata to the metadata frame, the additional metadata comprising the digital signature and predefined coordinates which define that the additional metadata comprise the digital signature.