Feature vector generation and encryption

A system of generating an image vector, the system comprising:

• one or more non-transitory computer-readable storage media having instructions stored thereon;
• and
• one or more processors communicatively coupled to the one or more computer-readable storage media and configured to cause the system to perform operations in response to executing the instructions stored on the one or more computer-readable storage media, the operations comprising:
• extracting feature data from an image, the feature data including:
• location data that indicates a plurality of locations within the image;
• and
• a plurality of feature vectors that each correspond to one of the plurality of locations of the location data in which each feature vector represents a feature of an object depicted in the image at its corresponding location;
• determining a feature-data plot of each of the feature vectors extracted from the image based on relative positions of the plurality of locations with respect to each other;
• selecting a grid that overlays the feature-data plot of the feature vectors extracted from the image based on a particular probability of distribution of the plurality of feature vectors with respect to cells of the grid;
• generating a first representative feature vector for a first cell of the grid based on a first feature vector set of one or more first feature vectors of the feature-data plot that are included in the first cell;
• generating a second representative feature vector for a second cell of the grid based on a second feature vector set of one or more second feature vectors of the feature-data plot that are included in the second cell;
• generating a single feature vector that represents the object in the image based on the first representative feature vector and the second representative feature vector;
• and
• encrypting the single feature vector.