Reading Test Cards Using a Mobile Device

A method comprising:

• receiving an input image from a mobile device;
• determining that a portion of the input image corresponds to a test card, the test card having a class of a plurality of test card classes, wherein the template matching subsystem is further configured to identify the class of the test card in the input image by comparing potential features in the input image to templates corresponding to each of the plurality of test card classes;
• applying an image transformation to rectify the portion of the input image that corresponds to the test card;
• identifying a test type for which the test card includes a test result, where a test type corresponds to a plurality of possible result indicators for tests of the test type, wherein the test type is identified based on the identified test card class and the rectified portion of the input image;
• and
• determining the test result included on the test card based on the rectified portion of the input image and the possible result indicators corresponding to the identified test type.

A system comprising:

• a mobile device having a camera and a display, the camera configured to obtain an image including a test card, the test card having a class of a plurality of test card classes, wherein the template matching subsystem is further configured to identify the class of the test card in the input image by comparing potential features in the input image to templates corresponding to each of the plurality of test card classes, the test card being physically separate from the camera at a time the image is captured and not supported by an attachment connected to the mobile device, and the display configured to display the test result determined from the image;
• and
• a diagnostic server, communicably coupled to the mobile device, and configured to:
• receive the image from the mobile device;
• apply an image transformation to the image, the image transformation rectifying the image;
• determine a test type for which the test card includes a test result, where a test type corresponds to a plurality of possible result indicators for tests of the test type, wherein the test type is identified based on the identified test card class and the rectified image;
• determine the test result included on the test card based on the rectified image and the possible result indicators corresponding to the identified test type;
• and
• send the result to the mobile device.