Quantitative hormone and chemical analyte test result systems and methods
AssigneeEasy Healthcare Corporation
InventorsXiaolian Liu, Li Zou
Life of this patent
Estimating the term…
Abstract
Systems, methods, and apparatus are disclosed for determining quantitative hormone and chemical analyte results from qualitative test results. An image is taken of an ovulation test device. The image is analyzed to identify a darkness intensity ratio (T/C ratio) between a darkness value of a test-line to a darkness value of a control-line. Additionally, a quantitative substance level may be determined using the T/C ratio, by identifying the type of test device and referencing a data structure that relates quantitative substance levels to T/C ratios for the identified type of test device.
Claims24
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.
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 camera, including an image capture mechanism and a camera communication interface;
- a processor, including an image processing mechanism and a processor communication interface in communication with the camera communication interface;
- and
- a display controlled by the processor:
- 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 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.
Dependencies are inferred from the claim text.