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Object Detection – 두개 이상의 Object 검출

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전체 글

(1)

Object Detection – 두개 이상의 Object 검출

(2)

Sliding Window 방식

(3)

Sliding Window – Image Scale 조정으로 Object Detection

(4)

Region Proposal(영역 추정)

(5)

Region Proposal(영역 추정) – Selective Search

(6)

Region Proposal(영역 추정) – Selective Search

(7)

Object Detection 성능평가 - IoU

(8)

Object Detection 성능평가 - IoU

(9)

NMS(Non Max Suppression)

(10)

NMS(Non Max Suppression)

(11)

Object Detection 성능평가 - mAP

(12)

Object Detection 성능평가 – Precision(정밀도) vs Recall(재현율)

(13)

Object Detection 성능평가 – IoU값에 따른 성공 결정

(14)

오차 행렬(Confusion Matrix)

옳은결정 틀린결정 검출되지 말아야 할 것이 검출되지 않음

검출 되어야 할 것이 검출되지 않음

(15)

Object Detection 성능평가 – Precision(정밀도) vs Recall(재현율)

옳은결정 틀린결정 검출되지 말아야 할 것이 검출되지 않음

검출 되어야 할 것이 검출되지 않음

(16)

Object Detection 성능평가 – Precision(정밀도) vs Recall(재현율)

(17)

Object Detection 성능평가 – Precision(정밀도) vs Recall(재현율)의 맹점

(18)

Confidence 임계값에 따른 정밀도 – 재현율 변화

(19)

Confidence 임계값에 따른 정밀도 – 재현율 변화

(20)

Confidence에 따른 정밀도 – 재현율 변화

(21)

Confidence에 따른 정밀도 – 재현율 변화

(22)

Confidence에 따른 정밀도 – AP(Average precision) 계산

(23)

Confidence에 따른 정밀도 – AP(Average precision) 계산

(24)

Confidence에 따른 정밀도 – mAP(mean Average precision) 계산

(25)

COCO Challenge – mAP(mean Average precision) 계산

(26)

COCO Challenge – mAP(mean Average precision) 계산

(27)

YOLO

(You Only Look Once)

(28)
(29)
(30)

Yolo v3 성능

(31)

Yolo Version

(32)

Yolo Version – Yolo v1

(33)

Yolo Version – Yolo v1

(34)

Yolo Version – Yolo v1

https://docs.google.com/presentation/d/1aeRvtKG21KHdD5lg6Hgyhx5rPq_ZOsGjG5rJ1HP7BbA/pub?start=false&loop=false&delayms=3000&slide=id.g137784ab86_4_2739

(35)

Yolo Version – Yolo v1

https://docs.google.com/presentation/d/1aeRvtKG21KHdD5lg6Hgyhx5rPq_ZOsGjG5rJ1HP7BbA/pub?start=false&loop=false&delayms=3000&slide=id.g137784ab86_4_2739

(36)

NMS(Non Max Suppression)으로 최종 박스 예측

(37)

Yolo Version – Yolo v1

(38)

Yolo Version – 버전별 비교

(39)

Yolo Version – Yolo v2

- V1 에 비해 시간이 빨라 짐 - Small object에 대해서 개선 됨

(40)

Yolo Version – Yolo v2

(41)

Yolo Version – Yolo v2

(42)

Yolo Version – Yolo v2

Anchor Box로 1Cell에서 여러 개 Object Detection

(43)

Yolo Version – Yolo v2 Feature Map

(44)

Yolo Version – Yolo v3

(45)

Yolo Version – Yolo v3

(46)

Yolo Version – Yolo v3

(47)

Yolo Version – Yolo v3 Feature Map

(48)

Yolo Version – Darknet53

(49)

Yolo Version – Yolo v3 : Training

(50)

Yolo Version – Yolo v3 : Location Prediction

(51)

Yolo Version – Yolo v3 : Multi Label Prediction

참조

관련 문서

Daily mean of air pressure, air temperature, dew-point temperature, wind direction and speed, relative humidity and cloud amount is the average of hourly

Daily mean of air pressure, air temperature, dew-point temperature, wind direction and speed, relative humidity and cloud amount is the average of hourly

Daily mean of air pressure, air temperature, dew-point temperature, wind direction and speed, relative humidity and cloud amount is the average of hourly

Daily mean of air pressure, air temperature, dew-point temperature, wind direction and speed, relative humidity and cloud amount is the average of hourly

Daily mean of air pressure, air temperature, dew-point temperature, wind direction and speed, relative humidity and cloud amount is the average of hourly

Daily mean of air pressure, air temperature, dew-point temperature, wind direction and speed, relative humidity and cloud amount is the average of hourly

Daily mean of air pressure, air temperature, dew-point temperature, wind direction and speed, relative humidity and cloud amount is the average of hourly

Daily mean of air pressure, air temperature, dew-point temperature, wind direction and speed, relative humidity and cloud amount is the average of hourly