mirror of https://github.com/vladmandic/human
271 lines
11 KiB
JavaScript
271 lines
11 KiB
JavaScript
/* global QuickSettings */
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/* eslint-disable no-return-assign */
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import human from '../dist/human.esm.js';
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const config = {
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face: {
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enabled: false,
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detector: { maxFaces: 10, skipFrames: 5, minConfidence: 0.8, iouThreshold: 0.3, scoreThreshold: 0.75 },
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mesh: { enabled: false },
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iris: { enabled: false },
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age: { enabled: false, skipFrames: 5 },
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gender: { enabled: false },
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},
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body: { enabled: false, maxDetections: 5, scoreThreshold: 0.75, nmsRadius: 20 },
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hand: { enabled: false, skipFrames: 5, minConfidence: 0.8, iouThreshold: 0.3, scoreThreshold: 0.75 },
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};
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let settings;
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async function drawFace(result) {
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const canvas = document.getElementById('canvas');
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const ctx = canvas.getContext('2d');
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ctx.fillStyle = 'lightcoral';
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ctx.strokeStyle = 'lightcoral';
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ctx.font = 'small-caps 1rem "Segoe UI"';
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for (const face of result) {
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ctx.beginPath();
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ctx.rect(face.box[0], face.box[1], face.box[2], face.box[3]);
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ctx.fillText(`face ${face.gender || ''} ${face.age || ''} ${face.iris ? 'iris: ' + face.iris : ''}`, face.box[0] + 2, face.box[1] + 16, face.box[2]);
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ctx.stroke();
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if (face.mesh) {
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if (settings.getValue('Draw Points')) {
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for (const point of face.mesh) {
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ctx.fillStyle = `rgba(${127.5 + (2 * point[2])}, ${127.5 - (2 * point[2])}, 255, 0.5)`;
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ctx.beginPath();
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ctx.arc(point[0], point[1], 2, 0, 2 * Math.PI);
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ctx.fill();
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}
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}
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if (settings.getValue('Draw Polygons')) {
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for (let i = 0; i < human.facemesh.triangulation.length / 3; i++) {
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const points = [
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human.facemesh.triangulation[i * 3 + 0],
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human.facemesh.triangulation[i * 3 + 1],
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human.facemesh.triangulation[i * 3 + 2],
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].map((index) => face.mesh[index]);
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const path = new Path2D();
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path.moveTo(points[0][0], points[0][1]);
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for (const point of points) {
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path.lineTo(point[0], point[1]);
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}
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path.closePath();
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ctx.fillStyle = `rgba(${127.5 + (2 * points[0][2])}, ${127.5 - (2 * points[0][2])}, 255, 0.5)`;
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ctx.strokeStyle = `rgba(${127.5 + (2 * points[0][2])}, ${127.5 - (2 * points[0][2])}, 255, 0.5)`;
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ctx.stroke(path);
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if (settings.getValue('Fill Polygons')) {
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ctx.fill(path);
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}
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}
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}
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}
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}
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}
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async function drawBody(result) {
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const canvas = document.getElementById('canvas');
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const ctx = canvas.getContext('2d');
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ctx.fillStyle = 'lightcoral';
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ctx.strokeStyle = 'lightcoral';
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ctx.font = 'small-caps 1rem "Segoe UI"';
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for (const pose of result) {
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if (settings.getValue('Draw Points')) {
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for (const point of pose.keypoints) {
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ctx.beginPath();
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ctx.arc(point.position.x, point.position.y, 2, 0, 2 * Math.PI);
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ctx.fill();
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}
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}
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if (settings.getValue('Draw Polygons')) {
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const path = new Path2D();
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let part;
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// torso
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part = pose.keypoints.find((a) => a.part === 'leftShoulder');
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path.moveTo(part.position.x, part.position.y);
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part = pose.keypoints.find((a) => a.part === 'rightShoulder');
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path.lineTo(part.position.x, part.position.y);
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part = pose.keypoints.find((a) => a.part === 'rightHip');
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path.lineTo(part.position.x, part.position.y);
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part = pose.keypoints.find((a) => a.part === 'leftHip');
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path.lineTo(part.position.x, part.position.y);
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part = pose.keypoints.find((a) => a.part === 'leftShoulder');
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path.lineTo(part.position.x, part.position.y);
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// legs
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part = pose.keypoints.find((a) => a.part === 'leftHip');
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path.moveTo(part.position.x, part.position.y);
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part = pose.keypoints.find((a) => a.part === 'leftKnee');
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path.lineTo(part.position.x, part.position.y);
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part = pose.keypoints.find((a) => a.part === 'leftAnkle');
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path.lineTo(part.position.x, part.position.y);
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part = pose.keypoints.find((a) => a.part === 'rightHip');
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path.moveTo(part.position.x, part.position.y);
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part = pose.keypoints.find((a) => a.part === 'rightKnee');
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path.lineTo(part.position.x, part.position.y);
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part = pose.keypoints.find((a) => a.part === 'rightAnkle');
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path.lineTo(part.position.x, part.position.y);
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// arms
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part = pose.keypoints.find((a) => a.part === 'leftShoulder');
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path.moveTo(part.position.x, part.position.y);
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part = pose.keypoints.find((a) => a.part === 'leftElbow');
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path.lineTo(part.position.x, part.position.y);
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part = pose.keypoints.find((a) => a.part === 'leftWrist');
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path.lineTo(part.position.x, part.position.y);
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// arms
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part = pose.keypoints.find((a) => a.part === 'rightShoulder');
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path.moveTo(part.position.x, part.position.y);
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part = pose.keypoints.find((a) => a.part === 'rightElbow');
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path.lineTo(part.position.x, part.position.y);
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part = pose.keypoints.find((a) => a.part === 'rightWrist');
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path.lineTo(part.position.x, part.position.y);
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// draw all
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ctx.stroke(path);
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}
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}
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}
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async function drawHand(result) {
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const canvas = document.getElementById('canvas');
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const ctx = canvas.getContext('2d');
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ctx.font = 'small-caps 1rem "Segoe UI"';
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window.result = result;
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for (const hand of result) {
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if (settings.getValue('Draw Points')) {
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for (const point of hand.landmarks) {
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ctx.fillStyle = `rgba(${127.5 + (2 * point[2])}, ${127.5 - (2 * point[2])}, 255, 0.5)`;
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ctx.beginPath();
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ctx.arc(point[0], point[1], 2, 0, 2 * Math.PI);
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ctx.fill();
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}
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}
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if (settings.getValue('Draw Polygons')) {
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const addPart = (part) => {
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ctx.beginPath();
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for (const i in part) {
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ctx.strokeStyle = `rgba(${127.5 + (2 * part[i][2])}, ${127.5 - (2 * part[i][2])}, 255, 0.5)`;
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if (i === 0) ctx.moveTo(part[i][0], part[i][1]);
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else ctx.lineTo(part[i][0], part[i][1]);
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}
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ctx.stroke();
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};
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addPart(hand.annotations.indexFinger);
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addPart(hand.annotations.middleFinger);
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addPart(hand.annotations.ringFinger);
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addPart(hand.annotations.pinky);
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addPart(hand.annotations.thumb);
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addPart(hand.annotations.palmBase);
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}
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}
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}
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async function runHumanDetect() {
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const video = document.getElementById('video');
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const canvas = document.getElementById('canvas');
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const log = document.getElementById('log');
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const live = video.srcObject ? ((video.srcObject.getVideoTracks()[0].readyState === 'live') && (video.readyState > 2) && (!video.paused)) : false;
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if (live) {
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// perform detection
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const t0 = performance.now();
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const result = await human.detect(video, config);
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const t1 = performance.now();
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// update fps
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settings.setValue('FPS', Math.round(1000 / (t1 - t0)));
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// draw image from video
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const ctx = canvas.getContext('2d');
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ctx.drawImage(video, 0, 0, video.width, video.height, 0, 0, canvas.width, canvas.height);
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// draw all results
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drawFace(result.face);
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drawBody(result.body);
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drawHand(result.hand);
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// update log
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const engine = await human.tf.engine();
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log.innerText = `
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TFJS Version: ${human.tf.version_core} Memory: ${engine.state.numBytes.toLocaleString()} bytes ${engine.state.numDataBuffers.toLocaleString()} buffers ${engine.state.numTensors.toLocaleString()} tensors
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GPU Memory: used ${engine.backendInstance.numBytesInGPU.toLocaleString()} bytes free ${Math.floor(1024 * 1024 * engine.backendInstance.numMBBeforeWarning).toLocaleString()} bytes
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Result: Face: ${(JSON.stringify(result.face)).length.toLocaleString()} bytes Body: ${(JSON.stringify(result.body)).length.toLocaleString()} bytes Hand: ${(JSON.stringify(result.hand)).length.toLocaleString()} bytes
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`;
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// rinse & repeate
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requestAnimationFrame(runHumanDetect);
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}
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}
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function setupGUI() {
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settings.addRange('FPS', 0, 100, 0, 1);
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settings.addBoolean('Pause', false, (val) => {
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if (val) document.getElementById('video').pause();
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else document.getElementById('video').play();
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runHumanDetect();
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});
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settings.addHTML('line1', '<hr>'); settings.hideTitle('line1');
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settings.addBoolean('Draw Points', true);
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settings.addBoolean('Draw Polygons', true);
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settings.addBoolean('Fill Polygons', true);
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settings.addHTML('line2', '<hr>'); settings.hideTitle('line2');
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settings.addBoolean('Face Detect', config.face.enabled, (val) => config.face.enabled = val);
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settings.addBoolean('Face Mesh', config.face.mesh.enabled, (val) => config.face.mesh.enabled = val);
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settings.addBoolean('Face Iris', config.face.iris.enabled, (val) => config.face.iris.enabled = val);
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settings.addBoolean('Face Age', config.face.age.enabled, (val) => config.face.age.enabled = val);
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settings.addBoolean('Face Gender', config.face.gender.enabled, (val) => config.face.gender.enabled = val);
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settings.addBoolean('Body Pose', config.body.enabled, (val) => config.body.enabled = val);
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settings.addBoolean('Hand Pose', config.hand.enabled, (val) => config.hand.enabled = val);
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settings.addHTML('line3', '<hr>'); settings.hideTitle('line3');
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settings.addRange('Max Objects', 1, 20, 5, 1, (val) => {
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config.face.detector.maxFaces = parseInt(val);
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config.body.maxDetections = parseInt(val);
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});
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settings.addRange('Skip Frames', 1, 20, config.face.detector.skipFrames, 1, (val) => {
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config.face.detector.skipFrames = parseInt(val);
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config.face.age.skipFrames = parseInt(val);
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config.hand.skipFrames = parseInt(val);
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});
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settings.addRange('Min Confidence', 0.1, 1.0, config.face.detector.minConfidence, 0.05, (val) => {
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config.face.detector.minConfidence = parseFloat(val);
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config.hand.minConfidence = parseFloat(val);
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});
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settings.addRange('Score Threshold', 0.1, 1.0, config.face.detector.scoreThreshold, 0.05, (val) => {
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config.face.detector.scoreThreshold = parseFloat(val);
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config.hand.scoreThreshold = parseFloat(val);
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config.body.scoreThreshold = parseFloat(val);
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});
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settings.addRange('IOU Threshold', 0.1, 1.0, config.face.detector.iouThreshold, 0.05, (val) => {
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config.face.detector.iouThreshold = parseFloat(val);
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config.hand.iouThreshold = parseFloat(val);
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});
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}
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async function setupCanvas() {
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const video = document.getElementById('video');
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const canvas = document.getElementById('canvas');
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canvas.width = video.width;
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canvas.height = video.height;
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settings = QuickSettings.create(10, 10, 'Settings', document.getElementById('main'));
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}
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async function setupCamera() {
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const video = document.getElementById('video');
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const stream = await navigator.mediaDevices.getUserMedia({
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audio: false,
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video: { facingMode: 'user', width: window.innerWidth, height: window.innerHeight },
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});
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video.srcObject = stream;
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return new Promise((resolve) => {
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video.onloadedmetadata = () => {
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resolve(video);
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video.width = video.videoWidth;
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video.height = video.videoHeight;
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video.play();
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};
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});
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}
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async function main() {
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await human.tf.setBackend('webgl');
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await human.tf.ready();
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await setupCamera();
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await setupCanvas();
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await setupGUI();
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runHumanDetect();
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}
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window.onload = main;
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window.onresize = main;
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