Différences

Ci-dessous, les différences entre deux révisions de la page.

--- apprentissage:bac [2020/11/05 17:26] – jbpuel
+++ apprentissage:bac [2023/06/30 09:41] – jbpuel
@@ Ligne 3: / Ligne 3: @@
 L'espace de **découverte** du wiki.
+<html>
+<div>Teachable Machine Pose Model</div>
+<button type="button" onclick="init()">Start</button>
+<div><canvas id="canvas"></canvas></div>
+<div id="label-container"></div>
+<script src="https://cdn.jsdelivr.net/npm/@tensorflow/tfjs@1.3.1/dist/tf.min.js"></script>
+<script src="https://cdn.jsdelivr.net/npm/@teachablemachine/pose@0.8/dist/teachablemachine-pose.min.js"></script>
+<script type="text/javascript">
+    // More API functions here:
+    // https://github.com/googlecreativelab/teachablemachine-community/tree/master/libraries/pose
+    // the link to your model provided by Teachable Machine export panel
+    const URL = "./my_model/";
+    let model, webcam, ctx, labelContainer, maxPredictions;
+    async function init() {
+        const modelURL = URL + "model.json";
+        const metadataURL = URL + "metadata.json";
+        // load the model and metadata
+        // Refer to tmImage.loadFromFiles() in the API to support files from a file picker
+        // Note: the pose library adds a tmPose object to your window (window.tmPose)
+        model = await tmPose.load(modelURL, metadataURL);
+        maxPredictions = model.getTotalClasses();
+        // Convenience function to setup a webcam
+        const size = 200;
+        const flip = true; // whether to flip the webcam
+        webcam = new tmPose.Webcam(size, size, flip); // width, height, flip
+        await webcam.setup(); // request access to the webcam
+        await webcam.play();
+        window.requestAnimationFrame(loop);
+        // append/get elements to the DOM
+        const canvas = document.getElementById("canvas");
+        canvas.width = size; canvas.height = size;
+        ctx = canvas.getContext("2d");
+        labelContainer = document.getElementById("label-container");
+        for (let i = 0; i < maxPredictions; i++) { // and class labels
+            labelContainer.appendChild(document.createElement("div"));
+        }
+    }
+    async function loop(timestamp) {
+        webcam.update(); // update the webcam frame
+        await predict();
+        window.requestAnimationFrame(loop);
+    }
+    async function predict() {
+        // Prediction #1: run input through posenet
+        // estimatePose can take in an image, video or canvas html element
+        const { pose, posenetOutput } = await model.estimatePose(webcam.canvas);
+        // Prediction 2: run input through teachable machine classification model
+        const prediction = await model.predict(posenetOutput);
+        for (let i = 0; i < maxPredictions; i++) {
+            const classPrediction =
+                prediction[i].className + ": " + prediction[i].probability.toFixed(2);
+            labelContainer.childNodes[i].innerHTML = classPrediction;
+        }
+        // finally draw the poses
+        drawPose(pose);
+    }
+    function drawPose(pose) {
+        if (webcam.canvas) {
+            ctx.drawImage(webcam.canvas, 0, 0);
+            // draw the keypoints and skeleton
+            if (pose) {
+                const minPartConfidence = 0.5;
+                tmPose.drawKeypoints(pose.keypoints, minPartConfidence, ctx);
+                tmPose.drawSkeleton(pose.keypoints, minPartConfidence, ctx);
+            }
+        }
+    }
+</script>
+</html>