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PoseNet skeletons with ml5.js & p5.js, using a pre-loaded video
// Copyright (c) 2018 ml5
//
// This software is released under the MIT License.
// https://opensource.org/licenses/MIT
/* ===
ml5 Example
PoseNet example using p5.js
=== */
// PoseNet with a pre-recorded video, modified from:
// https://github.com/ml5js/ml5-examples/blob/master/p5js/PoseNet/sketch.js
let poseNet;
let poses = [];
let video;
var videoIsPlaying;
function setup() {
videoIsPlaying = false;
createCanvas(640, 360);
video = createVideo('dancing.mp4', vidLoad);
video.size(width, height);
// Create a new poseNet method with a single detection
poseNet = ml5.poseNet(video, modelReady);
// This sets up an event that fills the global variable "poses"
// with an array every time new poses are detected
poseNet.on('pose', function(results) {
poses = results;
});
// Hide the video element, and just show the canvas
video.hide();
}
function modelReady() {
select('#status').html('Model Loaded');
}
function mousePressed(){
vidLoad();
}
function draw() {
image(video, 0, 0, width, height);
// We can call both functions to draw all keypoints and the skeletons
drawKeypoints();
drawSkeleton();
}
// A function to draw ellipses over the detected keypoints
function drawKeypoints()  {
// Loop through all the poses detected
for (let i = 0; i < poses.length; i++) {
// For each pose detected, loop through all the keypoints
let pose = poses[i].pose;
for (let j = 0; j < pose.keypoints.length; j++) {
// A keypoint is an object describing a body part (like rightArm or leftShoulder)
let keypoint = pose.keypoints[j];
// Only draw an ellipse is the pose probability is bigger than 0.2
if (keypoint.score > 0.2) {
noStroke();
fill(255, 0, 0);
ellipse(keypoint.position.x, keypoint.position.y, 10, 10);
}
}
}
}
// A function to draw the skeletons
function drawSkeleton() {
// Loop through all the skeletons detected
for (let i = 0; i < poses.length; i++) {
let skeleton = poses[i].skeleton;
// For every skeleton, loop through all body connections
for (let j = 0; j < skeleton.length; j++) {
let partA = skeleton[j][0];
let partB = skeleton[j][1];
stroke(255, 0, 0);
line(partA.position.x, partA.position.y, partB.position.x, partB.position.y);
}
}
}
// This function is called when the video loads
function vidLoad() {
video.stop();
video.loop();
videoIsPlaying = true;
}
function keyPressed(){
if (videoIsPlaying) {
video.pause();
videoIsPlaying = false;
} else {
video.loop();
videoIsPlaying = true;
}
}
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