Patent ID: 11903644
Assignee: SCHEPENS EYE RESEARCH INSTITUTE, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC A  G | IPC A  G

Claim 5:
6. The method of claim 1, further comprising:
prior to automatically measuring the distance, instructing, by the mobile device, the patient to create a 3D model of a face of the patient and save the 3D model to the mobile device
capturing, by the image acquisition unit, a current face image of the patient;
detecting, by the processor, one or more facial features on the current face image;
calculating, by the processor, an overall inter-feature distance in pixels of each of the current face image and the 3D model;
calculating, by the processor, an inter-feature distance ratio between the inter-feature distance of each of the current face image and the 3D model; and
calculating, by the processor, the distance between the patient and the mobile device based on information in the 3D model and the inter-feature distance ratio.