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example/tracker.json

10

example/inputDetections.txt

@@ -1,5 +0,5 @@

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@@ -11,3 +11,3 @@ var uuidv4 = require('uuid/v4');

// "h": 27,
// "prob": 26,
// "confidence": 26,
// "name": "car"

@@ -42,3 +42,3 @@ // }

itemTracked.name = properties.name;
itemTracked.prob = properties.prob;
itemTracked.confidence = properties.confidence;
itemTracked.itemHistory = [];

@@ -50,3 +50,3 @@ itemTracked.itemHistory.push({

h: properties.h,
prob: properties.prob
confidence: properties.confidence
});

@@ -76,3 +76,3 @@ itemTracked.velocity = {

this.h = properties.h;
this.prob = properties.prob;
this.confidence = properties.confidence;
this.itemHistory.push({

@@ -83,3 +83,3 @@ x: this.x,

h: this.h,
prob: this.prob
confidence: this.confidence
});

@@ -129,3 +129,3 @@ this.name = properties.name;

h: this.h,
prob: this.prob
confidence: this.confidence
});

@@ -178,3 +178,3 @@ this.x = this.x + this.velocity.dx

h: parseInt(this.h, 10),
prob: parseInt(this.prob, 10),
confidence: parseInt(this.confidence, 10),
// Here we negate dy to be in "normal" carthesian coordinates

@@ -196,3 +196,3 @@ bearing: parseInt(computeBearingIn360(this.velocity.dx, - this.velocity.dy)),

h: parseInt(this.h, 10),
prob: parseInt(this.prob, 10),
confidence: parseInt(this.confidence, 10),
// Here we negate dy to be in "normal" carthesian coordinates

@@ -199,0 +199,0 @@ bearing: parseInt(computeBearingIn360(this.velocity.dx, - this.velocity.dy), 10),

{
"name": "node-moving-things-tracker",
"version": "0.5.1",
"version": "0.5.2",
"description": "Tracker by detections in javascript for node.js / browsers",

@@ -5,0 +5,0 @@ "url": "https://github.com/tdurand/node-moving-things-tracker",

@@ -7,7 +7,7 @@ # node-moving-things-tracker

## Problem
## confidencelem
How to track persistently multiple moving things from frame-by-frame object detections inputs? How to assign an unique identifier to frame-by-frame object detection results?
Often object detection framework don't have any memory of their detection results over time e.g. Yolo provides every frame an array of detections results in the form of `[[x,y,w,h,prob,name] ...]`, note that there isn't any unique ID to indentify the same detected object in future frames.
Often object detection framework don't have any memory of their detection results over time e.g. Yolo provides every frame an array of detections results in the form of `[[x,y,w,h,confidence,name] ...]`, note that there isn't any unique ID to indentify the same detected object in future frames.

@@ -76,4 +76,4 @@ **Detections Input**

```json
{"frame":0,"detections":[{"x":699,"y":99,"w":32,"h":19,"prob":34,"name":"car"},{"x":285,"y":170,"w":40,"h":32,"prob":26,"name":"car"},{"x":259,"y":178,"w":75,"h":46,"prob":42,"name":"car"},{"x":39,"y":222,"w":91,"h":52,"prob":61,"name":"car"},{"x":148,"y":199,"w":123,"h":55,"prob":53,"name":"car"}]}
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{"frame":0,"detections":[{"x":699,"y":99,"w":32,"h":19,"confidence":34,"name":"car"},{"x":285,"y":170,"w":40,"h":32,"confidence":26,"name":"car"},{"x":259,"y":178,"w":75,"h":46,"confidence":42,"name":"car"},{"x":39,"y":222,"w":91,"h":52,"confidence":61,"name":"car"},{"x":148,"y":199,"w":123,"h":55,"confidence":53,"name":"car"}]}
{"frame":1,"detections":[{"x":699,"y":99,"w":32,"h":19,"confidence":31,"name":"car"},{"x":694,"y":116,"w":34,"h":23,"confidence":25,"name":"car"},{"x":285,"y":170,"w":40,"h":32,"confidence":27,"name":"car"},{"x":259,"y":178,"w":75,"h":46,"confidence":42,"name":"car"},{"x":39,"y":222,"w":91,"h":52,"confidence":61,"name":"car"},{"x":148,"y":199,"w":123,"h":55,"confidence":52,"name":"car"}]}
```

@@ -95,3 +95,3 @@

"h": 29,
"prob": 80,
"confidence": 80,
"name": "car",

@@ -106,3 +106,3 @@ "isZombie": false

"h": 35,
"prob": 80,
"confidence": 80,
"name": "car",

@@ -133,3 +133,3 @@ "isZombie": true

"h": 29,
"prob": 80,
"confidence": 80,
"name": "car",

@@ -148,3 +148,3 @@ "isZombie": false,

"h": 35,
"prob": 80,
"confidence": 80,
"name": "car",

@@ -151,0 +151,0 @@ "isZombie": false,

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