Adaptable camera-based contactless SpO2 detection

One or more non-transitory computer readable storage media storing instructions and coupled to one or more processors that are operable to execute the instructions to:

• access a recording, made by a camera of a client device, comprising a video of a region of a first user's skin;
• estimate, from the recorded video, a current ratio of ratios (RoR) for the first user corresponding to the first user's current blood-oxygen saturation;
• convert the first user's determined RoR to a transformed RoR for the first user based at least in part on a baseline user's RoR determined while generating a trained SpO2 prediction model, wherein the trained SpO2 prediction model is trained to estimate the baseline user's SpO2 value based on an input RoR value from the baseline user;
• and
• determine, by the trained SpO2 prediction model and based on the transformed RoR for the first user, the first user's current estimated blood-oxygen saturation.

A system comprising:

• one or more non-transitory computer readable storage media storing instructions;
• and one or more processors coupled to the non-transitory computer readable storage media, the one or more processors operable to execute the instructions to:
• access a recording, made by a camera of a client device, a video of a region of a first user's skin;
• estimate, from the recorded video, a current ratio of ratios (RoR) for the first user corresponding to the first user's current blood-oxygen saturation;
• convert the first user's determined RoR to a transformed RoR for the first user based at least in part on a baseline user's RoR determined while generating a trained SpO2 prediction model, wherein the trained SpO2 prediction model is trained to estimate the baseline user's SpO2 value based on an input RoR value from the baseline user;
• and
• determine, by the trained SpO2 prediction model and based on the transformed RoR for the first user, the first user's current estimated blood-oxygen saturation.