{"id":100809,"date":"2026-09-05T12:09:25","date_gmt":"2026-09-05T04:09:25","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/100809.html"},"modified":"2026-09-05T12:09:25","modified_gmt":"2026-09-05T04:09:25","slug":"harmonyos-ar-engine%e4%ba%ba%e8%84%b8%e8%a1%a8%e6%83%85%e8%b7%9f%e8%b8%aa%e5%ae%9e%e6%93%8d-84%e4%b8%aa%e5%85%b3%e9%94%ae%e7%82%b9%e4%b8%8e%e7%9c%a8%e7%9c%bc%e5%be%ae%e7%ac%91","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/100809.html","title":{"rendered":"HarmonyOS AR Engine\u4eba\u8138\u8868\u60c5\u8ddf\u8e2a\u5b9e\u64cd\u2014\u201484\u4e2a\u5173\u952e\u70b9\u4e0e\u7728\u773c\u5fae\u7b11\u5f20\u5634\u6311\u6218"},"content":{"rendered":"

\"AR<\/p>\n

\u8fd9\u6b21\u505a\u7684\u662f\u4e00\u9762\u80fd\u8bfb\u61c2\u8868\u60c5\u7684 AR \u955c\u5b50：\u524d\u7f6e\u76f8\u673a\u627e\u5230\u4eba\u8138\u540e，\u628a AR Engine \u8fd4\u56de\u7684 84 \u4e2a\u5173\u952e\u70b9\u53e0\u52a0\u5230\u4e94\u5b98\u4e0a，\u540c\u65f6\u8bfb\u53d6 64 \u9879\u8868\u60c5\u53c2\u6570，\u4f9d\u6b21\u5b8c\u6210\u7728\u773c\u3001\u5f20\u5634\u548c\u5fae\u7b11\u4e09\u4e2a\u52a8\u4f5c\u3002<\/p>\n

\u771f\u673a\u6700\u7ec8\u5b8c\u6210\u4e86\u5168\u90e8\u4e09\u9879\u6311\u6218\u3002\u9875\u9762\u9501\u5b9a\u5728\u7b2c 218 \u6b21\u91c7\u6837，\u4fdd\u7559 84\/84 \u4e2a\u5173\u952e\u70b9\u300164\/64 \u9879\u8868\u60c5\u53c2\u6570\u300110446 \u4e2a\u7f51\u683c\u9876\u70b9\u548c 6698 \u4e2a\u4e09\u89d2\u7d22\u5f15；\u672c\u8f6e\u5cf0\u503c\u4e3a\u7728\u773c 0.98\u3001\u5fae\u7b11 1.00\u3001\u5f20\u5634 0.60\u3002<\/p>\n

\"\u4e09\u9879\u8868\u60c5\u6311\u6218\u5b8c\u6210\u5e76\u9501\u5b9a\"<\/p>\n

\u753b\u9762\u91cc\u7684\u5f69\u8272\u70b9\u4e0d\u662f\u9884\u5148\u6446\u653e\u7684\u88c5\u9970\u3002\u5b83\u4eec\u6765\u81ea\u5f53\u524d ARFace \u7684\u5173\u952e\u70b9\u7f13\u51b2；\u4e09\u4e2a\u201c\u5df2\u6355\u83b7\u201d\u72b6\u6001\u4e5f\u4e0d\u662f\u6309\u94ae\u76f4\u63a5\u70b9\u4eae，\u800c\u662f BlendShapes \u53c2\u6570\u8fde\u7eed\u8fbe\u5230\u9608\u503c\u540e\u7684\u7ed3\u679c\u3002<\/p>\n

\u672c\u6b21\u7ed3\u679c<\/h3>\n\n\u9879\u76ee\u771f\u673a\u7ed3\u679c<\/tr>\n\n\n\n\n\n\n\n\n\n\n\n\n
\u4eba\u8138\u6570\u91cf<\/td>\n1<\/td>\n<\/tr>\n
2D \u5173\u952e\u70b9<\/td>\n84\/84<\/td>\n<\/tr>\n
\u8868\u60c5\u53c2\u6570<\/td>\n64\/64<\/td>\n<\/tr>\n
\u4eba\u8138\u7f51\u683c\u9876\u70b9<\/td>\n10446<\/td>\n<\/tr>\n
\u4e09\u89d2\u5f62\u7d22\u5f15<\/td>\n6698<\/td>\n<\/tr>\n
\u5750\u6807\u6a21\u5f0f<\/td>\nNORMALIZED_01<\/td>\n<\/tr>\n
\u7728\u773c\u5cf0\u503c<\/td>\n0.98<\/td>\n<\/tr>\n
\u5fae\u7b11\u5cf0\u503c<\/td>\n1.00<\/td>\n<\/tr>\n
\u5f20\u5634\u5cf0\u503c<\/td>\n0.60<\/td>\n<\/tr>\n
\u8868\u60c5\u6311\u6218<\/td>\n3\/3<\/td>\n<\/tr>\n
\u91c7\u6837\u5f02\u5e38<\/td>\n0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u9875\u9762\u4e0a\u7684\u5185\u5bb9\u600e\u4e48\u770b<\/h3>\n

\u9875\u9762\u53ea\u4fdd\u7559\u4e09\u5c42\u4fe1\u606f：<\/p>\n

    \n
  • \u4eba\u8138\u4e0a\u7684\u5f69\u8272\u70b9：\u5f53\u524d\u5e27\u8fd4\u56de\u7684 84 \u4e2a 2D \u5173\u952e\u70b9；<\/li>\n
  • \u9876\u90e8\u4e09\u4e2a\u5fbd\u7ae0：\u7728\u773c\u3001\u5fae\u7b11\u548c\u5f20\u5634\u7684\u5b9e\u65f6\u503c\u3001\u4f1a\u8bdd\u5cf0\u503c\u53ca\u5b8c\u6210\u72b6\u6001；<\/li>\n
  • \u5e95\u90e8\u7d27\u51d1\u64cd\u4f5c\u6761：\u4eba\u8138\u6570\u91cf\u3001\u5173\u952e\u70b9\u3001\u8868\u60c5\u53c2\u6570\u3001\u7f51\u683c\u7edf\u8ba1\u3001\u9501\u5b9a\u3001\u6682\u505c\u548c\u9000\u51fa\u3002<\/li>\n<\/ul>\n

    \u4e0b\u9762\u8fd9\u5f20\u8fc7\u7a0b\u56fe\u91cc，\u7728\u773c\u548c\u5f20\u5634\u5df2\u7ecf\u5b8c\u6210，\u5fae\u7b11\u5cf0\u503c\u53ea\u6709 0.24，\u6240\u4ee5\u8fdb\u5ea6\u662f 2\/3\u3002\u5b83\u80fd\u533a\u5206\u201c\u5df2\u7ecf\u68c0\u6d4b\u5230\u4eba\u8138\u201d\u548c\u201c\u5fae\u7b11\u52a8\u4f5c\u5df2\u7ecf\u8fbe\u5230\u9608\u503c\u201d\u8fd9\u4e24\u4e2a\u72b6\u6001\u3002<\/p>\n

    \"84\u70b9\u8ddf\u8e2a\u4e2d\u5e76\u5df2\u5b8c\u6210\u4e24\u9879\u6311\u6218\"<\/p>\n

    \u7ee7\u7eed\u505a\u51fa\u660e\u663e\u5fae\u7b11\u540e，\u53cc\u4fa7\u5fae\u7b11\u53c2\u6570\u8fbe\u5230 1.00，\u7b2c\u4e09\u9879\u88ab\u70b9\u4eae：<\/p>\n

    \"\u5fae\u7b11\u5b8c\u6210\u4e09\u9879\u8868\u60c5\u6311\u6218\"<\/p>\n

    \u5b9e\u9a8c\u51c6\u5907<\/h3>\n

    \u672c\u6b21\u5b9e\u9645\u73af\u5883\u5982\u4e0b：<\/p>\n\n\u9879\u76ee\u5b9e\u9645\u73af\u5883<\/tr>\n\n\n\n\n\n\n\n\n\n\n
    \u8bbe\u5907<\/td>\nHUAWEI Mate 60 Pro<\/td>\n<\/tr>\n
    \u7cfb\u7edf<\/td>\nHarmonyOS 7.0<\/td>\n<\/tr>\n
    SDK<\/td>\nAPI 26<\/td>\n<\/tr>\n
    \u5de5\u7a0b<\/td>\nArkTS Phone \u5e94\u7528，targetSdkVersion 26<\/td>\n<\/tr>\n
    \u5fc5\u9700\u6743\u9650<\/td>\nCAMERA<\/td>\n<\/tr>\n
    \u5fc5\u9700\u80fd\u529b<\/td>\nARENGINE_FEATURE_TYPE_FACE<\/td>\n<\/tr>\n
    AR \u4f1a\u8bdd\u7c7b\u578b<\/td>\nARType.FACE<\/td>\n<\/tr>\n
    \u76f8\u673a<\/td>\n\u524d\u7f6e\u76f8\u673a<\/td>\n<\/tr>\n
    \u591a\u4eba\u6a21\u5f0f<\/td>\n\u5173\u95ed，\u53ea\u8ddf\u8e2a\u4e00\u5f20\u8138<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    \u5b9e\u9a8c\u53ef\u4ee5\u76f4\u63a5\u5bf9\u7740\u771f\u4eba\u64cd\u4f5c，\u4e5f\u53ef\u4ee5\u5728\u53e6\u4e00\u5757\u5c4f\u5e55\u64ad\u653e\u76f8\u518c\u4e2d\u7684\u4eba\u8138\u89c6\u9891，\u518d\u8ba9\u624b\u673a\u524d\u7f6e\u76f8\u673a\u5bf9\u51c6\u89c6\u9891\u3002\u540e\u8005\u4ecd\u7136\u662f\u5bf9\u5c4f\u5e55\u753b\u9762\u7684\u5b9e\u65f6\u76f8\u673a\u8ddf\u8e2a，\u5e76\u4e0d\u662f\u628a MP4 \u6587\u4ef6\u76f4\u63a5\u4f20\u7ed9 AR Engine\u3002<\/p>\n

    \u5148\u68c0\u67e5\u76f8\u673a\u6743\u9650\u548c FACE \u80fd\u529b<\/h3>\n

    \u76f8\u673a\u6743\u9650\u548c FACE \u80fd\u529b\u68c0\u67e5\u653e\u5728\u8fdb\u5165\u5b9e\u9a8c\u9875\u4e4b\u524d\u3002\u4efb\u4e00\u6761\u4ef6\u4e0d\u6ee1\u8db3，\u9875\u9762\u53ea\u663e\u793a\u62e6\u622a\u539f\u56e0，\u4e0d\u521b\u5efa AR \u4f1a\u8bdd\u3002<\/p>\n

    private startFaceTracking(): void {
    \n if (!this.cameraGranted) {
    \n this.latestMessage =
    \n '\u62e6\u622a\u6210\u529f：\u672a\u83b7\u5f97\u76f8\u673a\u6743\u9650，\u4e0d\u542f\u52a8\u4eba\u8138\u8ddf\u8e2a\u3002';
    \n hilog.info(DOMAIN, TAG,
    \n 'FACE_GUARD camera=false');
    \n return;
    \n }<\/p>\n

    if (!this.canStartFace()) {
    \n this.latestMessage =
    \n '\u62e6\u622a\u6210\u529f：\u5f53\u524d\u8bbe\u5907\u4e0d\u652f\u6301\u4eba\u8138\u8ddf\u8e2a，\u4e0d\u521b\u5efa AR \u4f1a\u8bdd\u3002';
    \n hilog.info(DOMAIN, TAG,
    \n 'FACE_GUARD face=false');
    \n return;
    \n }<\/p>\n

    hilog.info(DOMAIN, TAG,
    \n 'FACE_GUARD camera=true face=true');
    \n this.showFaceTracking = true;
    \n}<\/p>\n

    \u672c\u6b21\u771f\u673a\u95e8\u7981\u901a\u8fc7：<\/p>\n

    FACE_GUARD camera=true face=true<\/p>\n

    \u5efa\u7acb\u524d\u7f6e\u4eba\u8138\u4f1a\u8bdd<\/h3>\n

    \u8fd9\u6b21\u53ea\u8bfb\u53d6\u4eba\u8138，\u4e0d\u9700\u8981\u5e73\u9762\u3001\u8bed\u4e49\u3001\u6df1\u5ea6\u6216 Mesh，\u56e0\u6b64\u8fd9\u4e9b\u6a21\u5f0f\u5168\u90e8\u5173\u95ed\u3002ARType.FACE \u9009\u62e9\u4eba\u8138\u4f1a\u8bdd，FRONT \u9009\u62e9\u524d\u7f6e\u6444\u50cf\u5934，MULTIFACE_DISABLE \u8ba9\u9875\u9762\u53ea\u5904\u7406\u4e00\u5f20\u4e3b\u8138\u3002<\/p>\n

    private async initARView(): Promise<void> {
    \n let pendingContext:
    \n arViewController.ARViewContext | undefined = undefined;<\/p>\n

    try {
    \n const startTime: number = Date.now();
    \n const scene: Scene = await Scene.load();
    \n pendingContext = new arViewController.ARViewContext();<\/p>\n

    this.callback = new FaceTrackingCallback(
    \n (context: arViewController.ARViewContext,
    \n timestamp: number) => {
    \n this.handleFrameUpdate(context, timestamp);
    \n }
    \n );<\/p>\n

    pendingContext.scene = scene;
    \n pendingContext.callback = this.callback;
    \n pendingContext.config = {
    \n type: arEngine.ARType.FACE,
    \n planeFindingMode:
    \n arEngine.ARPlaneFindingMode.DISABLED,
    \n powerMode: arEngine.ARPowerMode.NORMAL,
    \n semanticMode: arEngine.ARSemanticMode.NONE,
    \n poseMode: arEngine.ARPoseMode.GRAVITY,
    \n depthMode: arEngine.ARDepthMode.DISABLED,
    \n meshMode: arEngine.ARMeshMode.DISABLED,
    \n focusMode: arEngine.ARFocusMode.AUTO,
    \n cameraLensFacing:
    \n arEngine.ARCameraLensFacing.FRONT,
    \n multiFaceMode:
    \n arEngine.ARMultiFaceMode.MULTIFACE_DISABLE
    \n };<\/p>\n

    await pendingContext.init();
    \n this.arContext = pendingContext;
    \n this.sessionReadyTime = Date.now();<\/p>\n

    hilog.info(DOMAIN, TAG,
    \n 'FACE_SESSION_INIT success costMs=%{public}d ' +
    \n 'type=1 lens=1 multiFace=disabled focus=1',
    \n Date.now() – startTime);
    \n } catch (error) {
    \n const err: BusinessError = error as BusinessError;
    \n hilog.error(DOMAIN, TAG,
    \n 'FACE_SESSION_INIT error=%{public}d %{public}s',
    \n err.code, err.message);
    \n if (pendingContext) {
    \n await pendingContext.destroy();
    \n }
    \n }
    \n}<\/p>\n

    \u771f\u673a\u521d\u59cb\u5316\u53ea\u7528\u4e86 14 ms：<\/p>\n

    FACE_SESSION_INIT success costMs=14 type=1 lens=1 multiFace=disabled focus=1<\/p>\n

    \u4ece\u76f8\u673a\u5e27\u53d6\u5f97 ARFace<\/h3>\n

    \u6574\u4e2a\u6570\u636e\u6d41\u662f\u201c\u524d\u7f6e\u76f8\u673a\u2014ARFrame\u2014ARFace\u2014\u5173\u952e\u70b9\u4e0e\u8868\u60c5\u53c2\u6570\u2014\u4e09\u9879\u52a8\u4f5c\u201d\u3002<\/p>\n

    \"\u4ece\u524d\u7f6e\u76f8\u673a\u5230\u4e09\u79cd\u8868\u60c5\u7684\u6570\u636e\u94fe\u8def\"<\/p>\n

    \u76f8\u673a\u56de\u8c03\u9891\u7387\u5f88\u9ad8，\u9875\u9762\u6309 100 ms \u8282\u6d41\u3002\u4e0a\u4e00\u8f6e\u8fd8\u6ca1\u91ca\u653e\u3001\u9875\u9762\u6682\u505c\u3001\u8bc1\u636e\u9501\u5b9a\u6216\u9875\u9762\u5df2\u7ecf\u9500\u6bc1\u65f6，\u4e0d\u5f00\u542f\u65b0\u7684\u8bfb\u53d6\u3002<\/p>\n

    private handleFrameUpdate(
    \n context: arViewController.ARViewContext,
    \n timestamp: number
    \n): void {
    \n const now: number = Date.now();
    \n if (this.isDestroyed || this.isPaused ||
    \n this.evidenceLocked || this.samplingInFlight ||
    \n now – this.lastSampleTime < SAMPLE_INTERVAL_MS) {
    \n return;
    \n }<\/p>\n

    this.lastSampleTime = now;
    \n this.samplingInFlight = true;
    \n this.sampleFace(context).finally(() => {
    \n this.samplingInFlight = false;
    \n });
    \n}<\/p>\n

    \u6bcf\u8f6e\u5148\u53d6\u5f97 ARFrame，\u518d\u4ece\u5f53\u524d\u4f1a\u8bdd\u67e5\u8be2 FACE Trackable\u3002\u53ea\u6709\u72b6\u6001\u4e3a TRACKING \u7684\u4eba\u8138\u624d\u7ee7\u7eed\u8bfb\u53d6\u3002<\/p>\n

    private async sampleFace(
    \n context: arViewController.ARViewContext
    \n): Promise<void> {
    \n const session: arEngine.ARSession | undefined =
    \n context.session;
    \n if (!session) {
    \n return;
    \n }<\/p>\n

    let frame: arEngine.ARFrame | undefined = undefined;
    \n let landmark: arEngine.ARLandmark | undefined = undefined;
    \n let geometry: arEngine.ARGeometry | undefined = undefined;
    \n let blendShapes: arEngine.ARBlendShapes | undefined = undefined;
    \n let trackables: Array<arEngine.ARTrackable> = [];<\/p>\n

    try {
    \n frame = session.getFrame();
    \n trackables = session.getAllTrackables(
    \n arEngine.ARTrackableType.FACE);<\/p>\n

    const faces = trackables.filter(
    \n (trackable: arEngine.ARTrackable) =>
    \n trackable.state ===
    \n arEngine.ARTrackingState.TRACKING);<\/p>\n

    this.sampleCount += 1;
    \n this.faceCount = faces.length;
    \n if (faces.length === 0) {
    \n this.resetLiveFace();
    \n this.drawWaitingFrame();
    \n return;
    \n }<\/p>\n

    const face: arEngine.ARFace =
    \n faces[0] as arEngine.ARFace;
    \n landmark = face.getLandmark();
    \n geometry = face.getGeometry();
    \n blendShapes = face.getBlendShapes();<\/p>\n

    const landmarkValues = new Float32Array(
    \n landmark.getVertices2D());
    \n const result: LandmarkResult =
    \n this.convertLandmarks(
    \n landmarkValues, landmark.count);<\/p>\n

    this.landmarkCount = result.points.length;
    \n this.geometryVertices = geometry.verticesSize;
    \n this.triangleIndices = geometry.triangleIndicesCount;
    \n this.blendShapeCount = blendShapes.count;<\/p>\n

    const expressions: ExpressionValues =
    \n this.readExpressions(blendShapes);
    \n this.blinkValue = Math.max(
    \n expressions.blinkLeft, expressions.blinkRight);
    \n this.smileValue =
    \n (expressions.smileLeft + expressions.smileRight) \/ 2;
    \n this.jawValue = expressions.jawOpen;<\/p>\n

    this.updateChallenges();
    \n this.drawFacePoints(result.points);
    \n this.logExpressions(expressions);
    \n } finally {
    \n await this.releaseFaceResources(
    \n landmark, geometry, blendShapes,
    \n trackables, frame);
    \n }
    \n}<\/p>\n

    \u9996\u6b21\u8bc6\u522b\u8fd4\u56de\u4e86\u5b8c\u6574\u6570\u636e：<\/p>\n

    FACE_FIRST_TRACK latencyMs=909 faces=1 landmarks=84 floats2D=168 geometryVertices=10446 triangleIndices=6698 blendCount=64<\/p>\n

    84 \u00d7 2 = 168，\u6b63\u597d\u5bf9\u5e94\u6bcf\u4e2a\u5173\u952e\u70b9\u7684\u4e00\u7ec4 X\u3001Y \u5750\u6807\u3002<\/p>\n

    \u628a84\u4e2a\u5173\u952e\u70b9\u753b\u56de\u76f8\u673a\u753b\u9762<\/h3>\n

    \u672c\u673a\u8fd4\u56de\u7684\u662f 0～1 \u5f52\u4e00\u5316\u5750\u6807\u3002\u4e3a\u4e86\u907f\u514d\u628a\u53e6\u4e00\u79cd\u5750\u6807\u683c\u5f0f\u8bef\u5f53\u6210\u5f52\u4e00\u5316\u503c，\u9875\u9762\u5148\u8bb0\u5f55\u6700\u5c0f\u503c\u4e0e\u6700\u5927\u503c，\u518d\u9009\u62e9\u6620\u5c04\u65b9\u5f0f\u3002<\/p>\n

    private convertLandmarks(
    \n values: Float32Array,
    \n count: number
    \n): LandmarkResult {
    \n const pairCount: number = Math.min(
    \n 84, count, Math.floor(values.length \/ 2));<\/p>\n

    let minX: number = Number.POSITIVE_INFINITY;
    \n let minY: number = Number.POSITIVE_INFINITY;
    \n let maxX: number = Number.NEGATIVE_INFINITY;
    \n let maxY: number = Number.NEGATIVE_INFINITY;<\/p>\n

    for (let index = 0; index < pairCount; index += 1) {
    \n const x: number = values[index * 2];
    \n const y: number = values[index * 2 + 1];
    \n if (!Number.isFinite(x) || !Number.isFinite(y)) {
    \n continue;
    \n }
    \n minX = Math.min(minX, x);
    \n minY = Math.min(minY, y);
    \n maxX = Math.max(maxX, x);
    \n maxY = Math.max(maxY, y);
    \n }<\/p>\n

    const normalized: boolean =
    \n minX >= -0.05 && minY >= -0.05 &&
    \n maxX <= 1.05 && maxY <= 1.05;
    \n const points: FacePoint[] = [];
    \n if (!normalized) {
    \n return { points: points, mode: 'UNRESOLVED', range: '–' };
    \n }<\/p>\n

    for (let index = 0; index < pairCount; index += 1) {
    \n let x: number = values[index * 2];
    \n const y: number = values[index * 2 + 1];
    \n if (this.mirrorOverlay) {
    \n x = 1 – x;
    \n }
    \n points.push({
    \n x: x * this.overlayContext.width,
    \n y: y * this.overlayContext.height
    \n });
    \n }<\/p>\n

    return {
    \n points: points,
    \n mode: 'NORMALIZED_01',
    \n range: `x ${minX.toFixed(3)}~${maxX.toFixed(3)} \/ ` +
    \n `y ${minY.toFixed(3)}~${maxY.toFixed(3)}`
    \n };
    \n}<\/p>\n

    \u672c\u6b21\u771f\u673a\u8303\u56f4\u5982\u4e0b：<\/p>\n

    FACE_LANDMARK_RANGE mode=NORMALIZED_01 points=84 range=x 0.412~0.814 \/ y 0.398~0.817 mirror=false<\/p>\n

    \u70b9\u9635\u7ed8\u5236\u53ea\u4f7f\u7528\u8f6c\u6362\u540e\u7684\u771f\u5b9e\u70b9\u3002\u65e0\u6548\u70b9\u3001\u672a\u8bc6\u522b\u5750\u6807\u548c\u7a7a\u7f13\u51b2\u90fd\u4e0d\u4f1a\u7528\u624b\u5de5\u4f4d\u7f6e\u8865\u9f50\u3002<\/p>\n

    private drawFacePoints(points: FacePoint[]): void {
    \n if (!this.canvasReady || this.evidenceLocked) {
    \n return;
    \n }<\/p>\n

    this.overlayContext.clearRect(
    \n 0, 0,
    \n this.overlayContext.width,
    \n this.overlayContext.height);<\/p>\n

    points.forEach((point: FacePoint, index: number) => {
    \n const phase: number = index % 3;
    \n const color: string = phase === 0
    \n ? '#72FFE1'
    \n : (phase === 1 ? '#D694FF' : '#FFD36E');<\/p>\n

    this.overlayContext.beginPath();
    \n this.overlayContext.arc(
    \n point.x, point.y,
    \n index % 7 === 0 ? 2.7 : 1.8,
    \n 0, Math.PI * 2);
    \n this.overlayContext.fillStyle = color;
    \n this.overlayContext.fill();
    \n });
    \n}<\/p>\n

    \u4ece64\u9879\u53c2\u6570\u8bfb\u53d6\u7728\u773c\u3001\u5fae\u7b11\u548c\u5f20\u5634<\/h3>\n

    getTypes() \u8fd4\u56de\u6bcf\u4e2a\u53c2\u6570\u7684\u7c7b\u578b，getData() \u8fd4\u56de\u5bf9\u5e94\u6570\u503c\u3002\u4e24\u7ec4\u6570\u636e\u6309\u540c\u4e00\u7d22\u5f15\u5199\u5165 Map，\u518d\u8bfb\u53d6\u8fd9\u6b21\u9700\u8981\u7684\u4e94\u9879：\u5de6\u53f3\u773c\u95ed\u5408\u3001\u5de6\u53f3\u5634\u89d2\u5fae\u7b11\u548c\u4e0b\u988c\u5f20\u5f00\u3002<\/p>\n

    private readExpressions(
    \n blendShapes: arEngine.ARBlendShapes
    \n): ExpressionValues {
    \n const types: Array<arEngine.ARBlendShapeType> =
    \n blendShapes.getTypes();
    \n const data: Float32Array =
    \n new Float32Array(blendShapes.getData());
    \n const values = new Map<
    \n arEngine.ARBlendShapeType, number>();<\/p>\n

    const count: number = Math.min(
    \n blendShapes.count, types.length, data.length);
    \n for (let index = 0; index < count; index += 1) {
    \n values.set(types[index], data[index]);
    \n }<\/p>\n

    return {
    \n blinkLeft: this.expressionValue(
    \n values, arEngine.ARBlendShapeType.EYE_BLINK_LEFT),
    \n blinkRight: this.expressionValue(
    \n values, arEngine.ARBlendShapeType.EYE_BLINK_RIGHT),
    \n smileLeft: this.expressionValue(
    \n values, arEngine.ARBlendShapeType.MOUTH_SMILE_LEFT),
    \n smileRight: this.expressionValue(
    \n values, arEngine.ARBlendShapeType.MOUTH_SMILE_RIGHT),
    \n jawOpen: this.expressionValue(
    \n values, arEngine.ARBlendShapeType.JAW_OPEN)
    \n };
    \n}<\/p>\n

    \u4e3a\u4e86\u907f\u514d\u4e00\u5e27\u566a\u58f0\u76f4\u63a5\u70b9\u4eae\u6311\u6218，\u6bcf\u4e2a\u52a8\u4f5c\u8fde\u7eed\u8fbe\u5230\u9608\u503c\u4e24\u6b21\u624d\u5b8c\u6210\u3002\u5b8c\u6210\u72b6\u6001\u4f1a\u9501\u5b58，\u52a8\u4f5c\u6062\u590d\u540e\u4e0d\u4f1a\u7acb\u5373\u7184\u706d\u3002<\/p>\n

    private updateChallenges(): void {
    \n this.blinkHold = this.advanceChallenge(
    \n this.blinkValue >= 0.55,
    \n this.blinkHold, this.blinkDone, 'blink');
    \n this.smileHold = this.advanceChallenge(
    \n this.smileValue >= 0.42,
    \n this.smileHold, this.smileDone, 'smile');
    \n this.jawHold = this.advanceChallenge(
    \n this.jawValue >= 0.35,
    \n this.jawHold, this.jawDone, 'jaw');
    \n}<\/p>\n

    private advanceChallenge(
    \n active: boolean,
    \n hold: number,
    \n done: boolean,
    \n challenge: string
    \n): number {
    \n if (done) {
    \n return 2;
    \n }<\/p>\n

    const nextHold: number = active
    \n ? Math.min(2, hold + 1) : 0;
    \n if (nextHold < 2) {
    \n return nextHold;
    \n }<\/p>\n

    if (challenge === 'blink') {
    \n this.blinkDone = true;
    \n } else if (challenge === 'smile') {
    \n this.smileDone = true;
    \n } else {
    \n this.jawDone = true;
    \n }
    \n this.completedCount += 1;
    \n return nextHold;
    \n}<\/p>\n

    \u4e09\u4e2a\u52a8\u4f5c\u5728\u540c\u4e00\u4f1a\u8bdd\u4e2d\u4f9d\u6b21\u5b8c\u6210：<\/p>\n

    FACE_CHALLENGE_COMPLETE challenge=blink completed=1 blink=0.953 smile=0.000 jaw=0.000 sample=64
    \nFACE_CHALLENGE_COMPLETE challenge=jaw completed=2 blink=0.078 smile=0.004 jaw=0.517 sample=81
    \nFACE_CHALLENGE_COMPLETE challenge=smile completed=3 blink=0.316 smile=1.000 jaw=0.000 sample=166<\/p>\n

    \u771f\u673a\u64cd\u4f5c\u8fc7\u7a0b<\/h3>\n
  • \u8fdb\u5165\u201c\u5b9e\u9a8c 12：\u4eba\u8138\u8868\u60c5\u955c\u201d，\u8ba9\u6b63\u8138\u5360\u636e\u753b\u9762\u4e2d\u95f4；<\/li>\n
  • \u7b49\u9875\u9762\u663e\u793a\u201c84 \u70b9\u8ddf\u8e2a\u4e2d\u201d，\u5148\u68c0\u67e5\u5f69\u8272\u70b9\u662f\u5426\u843d\u5728\u989d\u5934\u3001\u773c\u3001\u9f3b\u3001\u5634\u548c\u4e0b\u5df4\u9644\u8fd1；<\/li>\n
  • \u53cc\u773c\u660e\u663e\u95ed\u5408\u7247\u523b，\u770b\u5230\u201c\u7728\u773c\u201d\u53d8\u6210\u201c\u5df2\u6355\u83b7\u201d；<\/li>\n
  • \u5f20\u5927\u5634\u4fdd\u6301\u7ea6\u534a\u79d2，\u770b\u5230\u201c\u5f20\u5634\u201d\u53d8\u6210\u201c\u5df2\u6355\u83b7\u201d；<\/li>\n
  • \u660e\u663e\u626c\u8d77\u4e24\u4fa7\u5634\u89d2，\u4fdd\u6301\u5230\u201c\u5fae\u7b11\u201d\u53d8\u6210\u201c\u5df2\u6355\u83b7\u201d；<\/li>\n
  • \u4e09\u9879\u90fd\u5b8c\u6210\u540e\u5148\u4fdd\u6301\u624b\u673a\u548c\u4eba\u8138\u4f4d\u7f6e\u4e0d\u53d8，\u518d\u70b9\u51fb\u201c\u9501\u5b9a\u5f53\u524d\u753b\u9762\u201d；<\/li>\n
  • \u622a\u56fe\u5b8c\u6210\u540e\u70b9\u51fb\u201c\u7ee7\u7eed\u8ddf\u8e2a\u201d，\u6700\u540e\u9a8c\u8bc1\u6682\u505c\u3001\u6062\u590d\u548c\u9500\u6bc1\u9000\u51fa\u3002<\/li>\n

    \u52a8\u4f5c\u4e0d\u5fc5\u4e25\u683c\u6309\u4e0a\u8ff0\u987a\u5e8f\u3002\u5f53\u524d\u9875\u9762\u4f1a\u4fdd\u7559\u6bcf\u9879\u4f1a\u8bdd\u5cf0\u503c，\u8868\u60c5\u6062\u590d\u540e\u4ecd\u80fd\u770b\u5230\u521a\u624d\u662f\u5426\u8fbe\u5230\u8fc7\u9608\u503c\u3002<\/p>\n

    \u5b9e\u64cd\u4e2d\u9047\u5230\u7684\u4e09\u4e2a\u95ee\u9898<\/h3>\n

    1. \u4eba\u8138\u5df2\u7ecf\u51fa\u73b0，\u4e09\u4e2a\u8868\u60c5\u5374\u4e00\u76f4\u663e\u793a0.00<\/h4>\n

    \u9996\u8f6e\u540e\u53f0\u65e5\u5fd7\u5df2\u7ecf\u8bfb\u5230\u7728\u773c 0.98\u3001\u5fae\u7b11 1.00\u3001\u5f20\u5634 0.93，\u9876\u90e8\u603b\u8fdb\u5ea6\u4e5f\u5230 3\/3，\u4f46\u81ea\u5b9a\u4e49 Builder \u4e2d\u7684\u4e09\u4e2a\u503c\u4ecd\u505c\u5728 0.00\u3002<\/p>\n

    \u539f\u56e0\u662f Builder \u63a5\u6536\u4e86\u8c03\u7528\u65f6\u8ba1\u7b97\u597d\u7684 value\/done\/hold \u53c2\u6570，\u5185\u90e8\u6ca1\u6709\u76f4\u63a5\u8bfb\u53d6\u5bf9\u5e94\u7684 @State\u3002\u4fee\u8ba2\u540e Builder \u53ea\u63a5\u6536\u6807\u7b7e，\u663e\u793a\u503c\u5728 Builder \u5185\u5b9e\u65f6\u53d6\u5f97：<\/p>\n

    @Builder
    \nprivate expressionBadge(
    \n label: string,
    \n color: string
    \n): void {
    \n Column({ space: 1 }) {
    \n Text(this.expressionDone(label)
    \n ? '\u2713 \u5df2\u6355\u83b7'
    \n : this.expressionLiveValue(label).toFixed(2))
    \n Text(`${label} \u00b7 \u5cf0 ` +
    \n this.expressionPeakValue(label).toFixed(2))
    \n }
    \n .backgroundColor(
    \n this.expressionDone(label) ? color : '#152331')
    \n}<\/p>\n

    \u7b2c\u4e8c\u8f6e\u9875\u9762\u4e0a\u7684\u5b8c\u6210\u72b6\u6001\u3001\u5b9e\u65f6\u503c\u3001\u5cf0\u503c\u548c\u65e5\u5fd7\u5f00\u59cb\u540c\u6b65\u53d8\u5316\u3002<\/p>\n

    2. \u63a7\u5236\u533a\u5360\u4e86\u63a5\u8fd1\u534a\u5c4f，\u4eba\u8138\u6548\u679c\u4e0d\u5b8c\u6574<\/h4>\n

    \u65e7\u9875\u9762\u4ece\u5c4f\u5e55\u7ea6 54% \u7684\u4f4d\u7f6e\u5f00\u59cb\u653e\u7f6e\u516d\u5f20\u7edf\u8ba1\u5361\u3001\u4e09\u6761\u8fdb\u5ea6\u548c\u56db\u4e2a\u6309\u94ae，\u8138\u90e8\u53d6\u666f\u88ab\u660e\u663e\u538b\u7f29\u3002<\/p>\n

    \u4fee\u8ba2\u540e\u9876\u90e8\u53ea\u4fdd\u7559\u4e09\u9879\u8868\u60c5\u5fbd\u7ae0，\u5e95\u90e8\u53ea\u4fdd\u7559\u4e00\u884c\u7edf\u8ba1\u548c\u56db\u4e2a\u64cd\u4f5c\u6309\u94ae，\u64cd\u4f5c\u6761\u4ece\u5c4f\u5e55\u7ea6 78% \u5904\u5f00\u59cb\u3002\u5b8c\u6574\u6b63\u8138\u300184 \u70b9\u548c\u6311\u6218\u72b6\u6001\u53ef\u4ee5\u540c\u65f6\u8fdb\u5165\u4e00\u5f20\u622a\u56fe\u3002<\/p>\n

    3. \u9501\u5b9a\u540e\u79fb\u52a8\u624b\u673a，\u70b9\u9635\u7559\u5728\u5899\u4e0a<\/h4>\n

    \u8bc1\u636e\u9501\u5b9a\u4f1a\u505c\u6b62\u65b0\u6570\u636e\u548c Canvas \u91cd\u7ed8，\u56e0\u6b64\u9501\u5b9a\u65f6\u7684\u70b9\u4e0d\u4f1a\u7ee7\u7eed\u8ddf\u7740\u76f8\u673a\u79fb\u52a8\u3002\u8fd9\u662f\u51bb\u7ed3\u8bc1\u636e\u7684\u9884\u671f\u6548\u679c，\u4e0d\u662f\u65b0\u7684\u8ddf\u8e2a\u7ed3\u679c\u3002<\/p>\n

    \u6700\u7ec8\u622a\u56fe\u7684\u987a\u5e8f\u6539\u4e3a：\u4fdd\u6301\u6b63\u8138\u4f4d\u7f6e\u2014\u786e\u8ba4 3\/3\u2014\u70b9\u51fb\u9501\u5b9a\u2014\u7acb\u5373\u622a\u56fe\u2014\u6700\u540e\u518d\u79fb\u52a8\u624b\u673a\u3002\u5899\u9762\u4e0a\u7684\u51bb\u7ed3\u70b9\u9635\u6ca1\u6709\u4f5c\u4e3a\u6587\u7ae0\u7ed3\u679c\u56fe\u3002<\/p>\n

    \u91ca\u653e\u6bcf\u4e00\u8f6e\u4eba\u8138\u8d44\u6e90<\/h3>\n

    \u4eba\u8138\u8bfb\u53d6\u6d89\u53ca Landmark\u3001Geometry\u3001BlendShapes\u3001Trackable \u548c ARFrame\u3002\u65e0\u8bba\u672c\u8f6e\u6210\u529f\u3001\u6570\u636e\u672a\u5c31\u7eea\u8fd8\u662f\u53d1\u751f\u5f02\u5e38，\u5b83\u4eec\u90fd\u5728 finally \u4e2d\u91ca\u653e\u3002<\/p>\n

    private async releaseFaceResources(
    \n landmark: arEngine.ARLandmark | undefined,
    \n geometry: arEngine.ARGeometry | undefined,
    \n blendShapes: arEngine.ARBlendShapes | undefined,
    \n trackables: Array<arEngine.ARTrackable>,
    \n frame: arEngine.ARFrame | undefined
    \n): Promise<void> {
    \n if (landmark) {
    \n await landmark.release();
    \n }
    \n if (geometry) {
    \n await geometry.release();
    \n }
    \n if (blendShapes) {
    \n await blendShapes.release();
    \n }
    \n for (let index = 0;
    \n index < trackables.length; index += 1) {
    \n await trackables[index].release();
    \n }
    \n if (frame) {
    \n await frame.release();
    \n }
    \n}<\/p>\n

    \u5b9e\u9645\u5de5\u7a0b\u5bf9\u6bcf\u6b21 release() \u8fd8\u5206\u522b\u505a\u4e86\u5f02\u5e38\u6355\u83b7，\u907f\u514d\u4e00\u4e2a\u8d44\u6e90\u91ca\u653e\u5931\u8d25\u540e\u8df3\u8fc7\u540e\u7eed\u8d44\u6e90\u3002<\/p>\n

    \u6682\u505c\u3001\u6062\u590d\u548c\u9500\u6bc1<\/h3>\n

    \u6682\u505c\u8c03\u7528 ARViewContext.pause()；\u6062\u590d\u8c03\u7528 resume() \u5e76\u91cd\u7f6e\u8282\u6d41\u65f6\u95f4；\u9000\u51fa\u9875\u9762\u9500\u6bc1\u6574\u4e2a ARViewContext\u3002<\/p>\n

    private pauseARView(): void {
    \n if (!this.arContext || this.isPaused) {
    \n return;
    \n }
    \n this.arContext.pause();
    \n this.isPaused = true;
    \n hilog.info(DOMAIN, TAG,
    \n 'FACE_SESSION_PAUSE sample=%{public}d',
    \n this.sampleCount);
    \n}<\/p>\n

    private resumeARView(): void {
    \n if (!this.arContext || !this.isPaused) {
    \n return;
    \n }
    \n this.arContext.resume();
    \n this.isPaused = false;
    \n this.lastSampleTime = 0;
    \n hilog.info(DOMAIN, TAG,
    \n 'FACE_SESSION_RESUME sample=%{public}d locked=%{public}s',
    \n this.sampleCount, `${this.evidenceLocked}`);
    \n}<\/p>\n

    private async destroyARView(): Promise<void> {
    \n if (!this.arContext || this.isDestroyed) {
    \n return;
    \n }
    \n this.isDestroyed = true;
    \n const context = this.arContext;
    \n this.arContext = undefined;
    \n await context.destroy();
    \n}<\/p>\n

    \u6682\u505c\u548c\u6062\u590d\u90fd\u505c\u5728\u7b2c 218 \u6b21\u91c7\u6837，\u9500\u6bc1\u65f6\u6ca1\u6709\u5f85\u5904\u7406\u6570\u636e\u548c\u5f02\u5e38：<\/p>\n

    FACE_SESSION_PAUSE sample=218
    \nFACE_SESSION_RESUME sample=218 locked=true
    \nFACE_SESSION_DESTROY sample=218 pending=0 errors=0 completed=3 locked=true<\/p>\n

    \u5b8c\u6574\u771f\u673a\u65e5\u5fd7<\/h3>\n

    \u4e0b\u9762\u662f\u672c\u6b21\u6587\u7ae0\u4f7f\u7528\u7684\u8131\u654f\u65e5\u5fd7，\u5df2\u7ecf\u5220\u9664\u5e94\u7528\u5305\u540d：<\/p>\n

    FACE_GUARD camera=true face=true
    \nFACE_SESSION_INIT success costMs=14 type=1 lens=1 multiFace=disabled focus=1
    \nFACE_FIRST_TRACK latencyMs=909 faces=1 landmarks=84 floats2D=168 geometryVertices=10446 triangleIndices=6698 blendCount=64
    \nFACE_LANDMARK_RANGE mode=NORMALIZED_01 points=84 range=x 0.412~0.814 \/ y 0.398~0.817 mirror=false
    \nFACE_CHALLENGE_COMPLETE challenge=blink completed=1 blink=0.953 smile=0.000 jaw=0.000 sample=64
    \nFACE_CHALLENGE_COMPLETE challenge=jaw completed=2 blink=0.078 smile=0.004 jaw=0.517 sample=81
    \nFACE_STATS sample=166 faces=1 landmarks=84 geometryVertices=10446 triangleIndices=6698 blendCount=64 blinkLeft=0.288 blinkRight=0.316 smileLeft=1.000 smileRight=1.000 jawOpen=0.000 completed=3
    \nFACE_CHALLENGE_COMPLETE challenge=smile completed=3 blink=0.316 smile=1.000 jaw=0.000 sample=166
    \nFACE_EVIDENCE_LOCK sample=218 landmarks=84 blendCount=64 completed=3 mode=NORMALIZED_01
    \nFACE_SESSION_PAUSE sample=218
    \nFACE_SESSION_RESUME sample=218 locked=true
    \nFACE_SESSION_DESTROY sample=218 pending=0 errors=0 completed=3 locked=true<\/p>\n

    \u6700\u7ec8\u9a8c\u8bc1<\/h3>\n

    \u672c\u6b21\u5b8c\u6574\u9a8c\u8bc1\u5f97\u5230\u4ee5\u4e0b\u7ed3\u679c：<\/p>\n

      \n
    • CAMERA \u6743\u9650\u548c FACE \u80fd\u529b\u95e8\u7981\u901a\u8fc7；<\/li>\n
    • \u524d\u7f6e FACE \u4f1a\u8bdd\u521d\u59cb\u5316\u6210\u529f；<\/li>\n
    • \u771f\u673a\u8fd4\u56de 1 \u5f20\u4eba\u8138\u300184 \u4e2a\u5173\u952e\u70b9\u548c 64 \u9879\u8868\u60c5\u53c2\u6570；<\/li>\n
    • Geometry \u8fd4\u56de 10446 \u4e2a\u7f51\u683c\u9876\u70b9\u548c 6698 \u4e2a\u4e09\u89d2\u7d22\u5f15；<\/li>\n
    • 84 \u70b9\u4e0e\u771f\u4eba\u989d\u5934\u3001\u773c\u3001\u9f3b\u3001\u5634\u548c\u4e0b\u5df4\u4f4d\u7f6e\u5bf9\u5e94；<\/li>\n
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    • \u9500\u6bc1\u65f6 pending=0 \/ errors=0；<\/li>\n
    • \u9759\u6001\u56de\u5f52\u3001ArkTS \u7f16\u8bd1\u3001HAP \u6253\u5305\u548c\u7b7e\u540d\u5747\u901a\u8fc7\u3002<\/li>\n<\/ul>\n

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        \n
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      • \u534e\u4e3a\u5f00\u53d1\u8005\u8054\u76df：\u4eba\u8138\u8ddf\u8e2a（ArkTS）<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"

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