Patent ID: 11892411
Assignee: EASY HEALTHCARE CORPORATION
Field: Measurement (Instruments)
Classification: CPC G  A | IPC G

Claim 0:
1. A testing system comprising:
a test device including a test area including a visually identifiable test-line and a visually identifiable control-line formed in response to exposure to a tested substance, the test area further includes a background; and
a user device including a camera, a processor, a display, and memory storing program instructions, wherein, in response to executing the program instructions, the processor:
receives an image of the test device from the camera, the image including the test area, the visually identifiable test-line, and the visually identifiable control-line;
creates a test-line greyscale representation of the visually identifiable test-line and a control-line greyscale representation of the visually identifiable control-line;
determines a numerical test-line value by comparing a test-line darkness value of the test-line greyscale representation of the visually identifiable test-line to the background of the test area to control for ambient interference and lighting conditions;
determines a numerical control-line value by comparing a control-line darkness value of the control-line greyscale representation of the visually identifiable control-line to the background of the test area to control for the ambient interference and lighting conditions; and
calculates a T/C ratio defined as a relative value of the numerical test-line value to the numerical control-line value.