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[mob] Handle error and empty face in visibility detector

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This commit is contained in:
Neeraj Gupta 2024-04-07 16:09:34 +05:30
parent cbc7034d47
commit b00ab0541e
1 changed files with 35 additions and 26 deletions
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61
mobile/lib/face/model/detection.dart
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@ -1,3 +1,4 @@
import "package:logging/logging.dart";
import "package:photos/face/model/box.dart";
import "package:photos/face/model/landmark.dart";
@ -49,35 +50,43 @@ class Detection {
// TODO: iterate on better scoring logic, current is a placeholder
int getVisibilityScore() {
final double aspectRatio = box.width / box.height;
final double eyeDistance = (landmarks[1].x - landmarks[0].x).abs();
final double mouthDistance = (landmarks[4].x - landmarks[3].x).abs();
final double noseEyeDistance =
(landmarks[2].y - ((landmarks[0].y + landmarks[1].y) / 2)).abs();
try {
if (isEmpty) {
return -1;
}
final double aspectRatio = box.width / box.height;
final double eyeDistance = (landmarks[1].x - landmarks[0].x).abs();
final double mouthDistance = (landmarks[4].x - landmarks[3].x).abs();
final double noseEyeDistance =
(landmarks[2].y - ((landmarks[0].y + landmarks[1].y) / 2)).abs();
final double normalizedEyeDistance = eyeDistance / box.width;
final double normalizedMouthDistance = mouthDistance / box.width;
final double normalizedNoseEyeDistance = noseEyeDistance / box.height;
final double normalizedEyeDistance = eyeDistance / box.width;
final double normalizedMouthDistance = mouthDistance / box.width;
final double normalizedNoseEyeDistance = noseEyeDistance / box.height;
const double aspectRatioThreshold = 0.8;
const double eyeDistanceThreshold = 0.2;
const double mouthDistanceThreshold = 0.3;
const double noseEyeDistanceThreshold = 0.1;
const double aspectRatioThreshold = 0.8;
const double eyeDistanceThreshold = 0.2;
const double mouthDistanceThreshold = 0.3;
const double noseEyeDistanceThreshold = 0.1;
double score = 0;
if (aspectRatio >= aspectRatioThreshold) {
score += 50;
}
if (normalizedEyeDistance >= eyeDistanceThreshold) {
score += 20;
}
if (normalizedMouthDistance >= mouthDistanceThreshold) {
score += 20;
}
if (normalizedNoseEyeDistance >= noseEyeDistanceThreshold) {
score += 10;
}
double score = 0;
if (aspectRatio >= aspectRatioThreshold) {
score += 50;
}
if (normalizedEyeDistance >= eyeDistanceThreshold) {
score += 20;
}
if (normalizedMouthDistance >= mouthDistanceThreshold) {
score += 20;
}
if (normalizedNoseEyeDistance >= noseEyeDistanceThreshold) {
score += 10;
}
return score.clamp(0, 100).toInt();
return score.clamp(0, 100).toInt();
} catch (e) {
Logger("FaceDetection").warning('Error calculating visibility score:', e);
return -1;
}
}
}