CROWDSOURCING IMAGE ANNOTATION USING GRID IMAGE USER AUTHENTICATION SYSTEMS

Techniques for automating image annotation for machine model updating are described. An example, computer implemented method comprises collecting images processed by an object detection model and associated with a detection error by the object detection model, wherein the object detection model is configured to detect respective objects in the images having a defined criterion. The method further comprises converting the images into grid images comprising a plurality of cells, providing the grid images to an authentication system that employs the grid images in association with authenticating users based on reception of user input selecting respective cells of the grid images depicting an object having the defined criterion, and receiving the grid images from the authentication system with annotation data associated therewith generated based on the user input, the annotation data identifying the respective cells of the grid images depicting the object having the defined criterion.