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human
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fix face box scaling on detection

pull/293/head
Vladimir Mandic 2021-11-23 08:36:32 -05:00
parent 40429cedda
commit ec41b72710
1 changed files with 6 additions and 2 deletions
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8
src/face/facemesh.ts
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@ -42,7 +42,8 @@ export async function predict(input: Tensor, config: Config): Promise<FaceResult
confidence: possible.confidence,
};
const boxScaled = util.scaleBoxCoordinates(box, possibleBoxes.scaleFactor);
const boxEnlarged = util.enlargeBox(boxScaled, Math.sqrt(config.face.detector?.cropFactor || 1.6));
const calcFactor = (config.face.detector?.cropFactor || 1.6) * 1400 / (boxScaled.endPoint[0] - boxScaled.startPoint[0] + 1400); // detected face box is not the same size as calculated face box and scale also depends on detected face size
const boxEnlarged = util.enlargeBox(boxScaled, calcFactor);
const boxSquared = util.squarifyBox(boxEnlarged);
boxCache.push(boxSquared);
}
@ -103,7 +104,10 @@ export async function predict(input: Tensor, config: Config): Promise<FaceResult
face.mesh = util.transformRawCoords(rawCoords, box, angle, rotationMatrix, inputSize); // get processed mesh
face.meshRaw = face.mesh.map((pt) => [pt[0] / (input.shape[2] || 0), pt[1] / (input.shape[1] || 0), (pt[2] || 0) / inputSize]);
for (const key of Object.keys(coords.meshAnnotations)) face.annotations[key] = coords.meshAnnotations[key].map((index) => face.mesh[index]); // add annotations
box = util.squarifyBox({ ...util.enlargeBox(util.calculateLandmarksBoundingBox(face.mesh), (config.face.detector?.cropFactor || 1.6)), confidence: box.confidence }); // redefine box with mesh calculated one
const boxCalculated = util.calculateLandmarksBoundingBox(face.mesh);
const boxEnlarged = util.enlargeBox(boxCalculated, (config.face.detector?.cropFactor || 1.6));
const boxSquared = util.squarifyBox(boxEnlarged);
box = { ...boxSquared, confidence: box.confidence }; // redefine box with mesh calculated one
face.box = util.getClampedBox(box, input); // update detected box with box around the face mesh
face.boxRaw = util.getRawBox(box, input);
face.score = face.faceScore;