Face expression probabilities random on chrome android

After loading and detecting face from html video element, the probability distribution is correct for a few frames (happy 0.99, sad 0.0000343) etc.

After a few processed frames, the probabilities jump all over the place (see screenshots below).

The same code works fine when using it in chrome on my desktop machine (Nvidia GTX 1060)

Android 8.0.0 Chrome 73.0.3683.90 Samsung Galaxy S7

const model = FaceApiFaceDetectorModel.TINY_FACE_DETECTOR;
const modelBaseUrl = '/assets/tfmodels';
const minConfidence = 0.5;
const inputSize = 256;
const scoreThreshold = 0.5;
const minFaceSize = 200;

await loadFaceDetectorModel(model, modelBaseUrl);
await faceapi.loadFaceExpressionModel(modelBaseUrl);

const options = getFaceDetectorOptions(model, minConfidence, inputSize, scoreThreshold, minFaceSize);

const result = await faceapi.detectSingleFace(video, options).withFaceExpressions();

Might this be some kind of overflow?

Edit: I tried it with the sample application (examples-browser) by updating the “video face tracking” example. The result is the same: Works on desktop, random values on mobile

[justadudewhohacks]

Ok. All I can do for now is upgrade tfjs-core to latest, which I am working on now.

[davidstrahm]

Update: seems to work now on chrome mobile [phone]