blakeblackshear.frigate/9901f42d.80dc6c54.js

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",Object(c.b)("inlineCode",{parentName:"p"},"threshold")," is based on the median of the history of scores (padded to 3 values) for a tracked object. Consider the following frames when ",Object(c.b)("inlineCode",{parentName:"p"},"min_score")," is set to 0.6 and threshold is set to 0.85:"),Object(c.b)("table",null,Object(c.b)("thead",{parentName:"table"},Object(c.b)("tr",{parentName:"thead"},Object(c.b)("th",Object(a.a)({parentName:"tr"},{align:null}),"Frame"),Object(c.b)("th",Object(a.a)({parentName:"tr"},{align:null}),"Current Score"),Object(c.b)("th",Object(a.a)({parentName:"tr"},{align:null}),"Score History"),Object(c.b)("th",Object(a.a)({parentName:"tr"},{align:null}),"Computed Score"),Object(c.b)("th",Object(a.a)({parentName:"tr"},{align:null}),"Detected Object"))),Object(c.b)("tbody",{parentName:"table"},Object(c.b)("tr",{parentName:"tbody"},Object(c.b)("td",Object(a.a)({parentName:"tr"},{align:null}),"1"),Object(c.b)("td",Object(a.a)({parentName:"tr"},{align:null}),"0.7"),Object(c.b)("td",Object(a.a)({parentName:"tr"},{align:null}),"0.0, 0, 0.7"),Object(c.b)("td",Object(a.a)({parentName:"tr"},{align:null}),"0.0"),Object(c.b)("td",Object(a.a)({parentName:"tr"},{align:null}),"No")),Object(c.b)("tr",{parentName:"tbody"},Object(c.b)("td",Object(a.a)({parentName:"tr"},{align:null}),"2"),Object(c.b)("td",Object(a.a)({parentName:"tr"},{align:null}),"0.55"),Object(c.b)("td",Object(a.a)({parentName:"tr"},{align:null}),"0.0, 0.7, 0.0"),Object(c.b)("td",Object(a.a)({parentName:"tr"},{align:null}),"0.0"),Object(c.b)("td",Object(a.a)({parentName:"tr"},{align:null}),"No")),Object(c.b)("tr",{parentName:"tbody"},Object(c.b)("td",Object(a.a)({parentName:"tr"},{align:null}),"3"),Object(c.b)("td",Object(a.a)({parentName:"tr"},{align:null}),"0.85"),Object(c.b)("td",Object(a.a)({parentName:"tr"},{align:null}),"0.7, 0.0, 0.85"),Object(c.b)("td",Object(a.a)({parentName:"tr"},{align:null}),"0.7"),Object(c.b)("td",Object(a.a)({parentName:"tr"},{align:null}),"No")),Object(c.b)("tr",{parentName:"tbody"},Object(c.b)("td",Object(a.a)({parentName:"tr"},{align:null}),"4"),Object(c.b)("td",Object(a.a)({parentName:"tr"},{align:null}),"0.90"),Object(c.b)("td",Object(a.a)({parentName:"tr"},{align:null}),"0.7, 0.85, 0.95, 0.90"),Object(c.b)("td",Object(a.a)({parentName:"tr"},{align:null}),"0.875"),Object(c.b)("td",Object(a.a)({parentName:"tr"},{align:null}),"Yes")),Object(c.b)("tr",{parentName:"tbody"},Object(c.b)("td",Object(a.a)({parentName:"tr"},{align:null}),"5"),Object(c.b)("td",Object(a.a)({parentName:"tr"},{align:null}),"0.88"),Object(c.b)("td",Object(a.a)({parentName:"tr"},{align:null}),"0.7, 0.85, 0.95, 0.90, 0.88"),Object(c.b)("td",Object(a.a)({parentName:"tr"},{align:null}),"0.88"),Object(c.b)("td",Object(a.a)({parentName:"tr"},{align:null}),"Yes")),Object(c.b)("tr",{parentName:"tbody"},Object(c.b)("td",Object(a.a)({parentName:"tr"},{align:null}),"6"),Object(c.b)("td",Object(a.a)({parentName:"tr"},{align:null}),"0.95"),Object(c.b)("td",Object(a.a)({parentName:"tr"},{align:null}),"0.7, 0.85, 0.95, 0.90, 0.88, 0.95"),Object(c.b)("td",Object(a.a)({parentName:"tr"},{align:null}),"0.89"),Object(c.b)("td",Object(a.a)({parentName:"tr"},{align:null}),"Yes")))),Object(c.b)("p",null,"In frame 2, the score is below the ",Object(c.b)("inlineCode",{parentName:"p"},"min_score")," value, so frigate ignores it and it becomes a 0.0. The computed score is the median of the score history (padding to at least 3 values), and only when that computed score crosses the ",Object(c.b)("inlineCode",{parentName:"p"},"threshold")," is the object marked as a true positive. 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