DETECTION OF SURVIVORS USING THERMO & NIGHT VISION SYSTEM (UNDER DEVELOPMENT)

DETECTION OF SURVIVORS USING DETECTION OF SURVIVORS USING

THERMOTHERMO & NIGHT& NIGHT VISIONVISION SYSTEMSYSTEM

(UNDER DEVELOPMENT)(UNDER DEVELOPMENT)

Zbigniew BurciuZbigniew Burciu,,

Teresa Abramowicz-Gerigk, Piotr Michna,Teresa Abramowicz-Gerigk, Piotr Michna,

Leszek Smolarek, Jarosław Soliwoda, Andrzej Szklarski, Sebastian UklejaLeszek Smolarek, Jarosław Soliwoda, Andrzej Szklarski, Sebastian Ukleja

Gdynia Maritime University – PolandGdynia Maritime University – Poland

Technologies for Search, Assistance and RescueTechnologies for Search, Assistance and RescueLe Quartz Brest, FranceLe Quartz Brest, France

Presented by Sebastian UklejaPresented by Sebastian Ukleja

Detection of survivors using Detection of survivors using Thermo & NightThermo & Night Vision Vision SystemSystem

Stage 1 – ThermoStage 1 – Thermo vision as a sensor vision as a sensor

Stage 2 – Designing a systemStage 2 – Designing a system

Stage 3 – Trials at seaStage 3 – Trials at sea

Stages of researchStages of research

Detection of survivors using Detection of survivors using ThermoThermo & Night & Night VisionVision System System

10 persons – 20 minutes later10 persons – 20 minutes later

4,4°C

10 persons – just after manning10 persons – just after manning

-3,2°C


Distance: 0,5 nautical mileDistance: 0,5 nautical mile Distance: 0,6 nautical mileDistance: 0,6 nautical mile

TTrials at searials at sea

Life raftLife raft


• Searching during night timeSearching during night time

TThhermoermo vision as a sensor for SAR actionvision as a sensor for SAR action

• ImproveImprovedd detection detection

• Life rafts with survivors or notLife rafts with survivors or not


Phase 2 – Where to install?Phase 2 – Where to install?

Phase 3 – Compensation of ship motionPhase 3 – Compensation of ship motion

Phase 4 – Selecting parts of equipmentPhase 4 – Selecting parts of equipment

Phase 5 – Automatic detectionPhase 5 – Automatic detection

Phase 1 – System in outlinePhase 1 – System in outline



Computer system for analysing imagesComputer system for analysing images

Sensors: thermo vision and night vision camera with Sensors: thermo vision and night vision camera with stroboscope laser illuminator stroboscope laser illuminator

Special device to reduce effect of ship’s motionSpecial device to reduce effect of ship’s motion

Monitor and control panel on the bridgeMonitor and control panel on the bridge


Length:Length: 56,34 m56,34 m

Breadth:Breadth: 11,36 m 11,36 m

Speed:Speed: 12 knots12 knots

Built inBuilt in Poland in year 2000Poland in year 2000

The prototype of our system was installed on The prototype of our system was installed on m/s Horyzont IIm/s Horyzont II




The best place to install:The best place to install:

• Maximize field of visionMaximize field of vision

• Reduce effect of temperature form funnelReduce effect of temperature form funnel

• Reduce effect of ship’s motionReduce effect of ship’s motionss




Point 3Point 3

- smallest effect of ship motion- smallest effect of ship motionss


Scanning speed versus ship movementScanning speed versus ship movement

for δ = 30

for δ = 10

k

k

ks T

TR

THR

HRHyV

)cos(

99863,005234,0

05234,0)(

22

k

k

ks T

TR

THR

HRHyV

)cos(

99985,0017452,0

017452,0)(

22

Calm sea


2222

99863,005234,0

05234,0)()(cos

HR

H

HR

RH

TTyVTR kyksk

2222

99985,0017452,0

017452,0)()(cos

HR

H

HR

RH

TTyVTR kyksk

δ = 30

δ = 10

Rough sea

Scanning speed versus ship movementScanning speed versus ship movement


Atmosphere

LensMatrix

Camera

Object

Background




• Т Т (3 (35)5)СС for for uncovered human uncovered human bodybody

• Range 2 km - focal Range 2 km - focal length about 300 mm.length about 300 mm.

• We have chosen We have chosen focal length focal length 240 mm240 mm

RANGE

Т [С]

[km]

2,27 km

1,82 km

0,76 km



Integration of detection hitsIntegration of detection hits

EExtractionxtraction

PProgram urogram usesses::

Computer system for Computer system for analyzinganalyzing images images

CFAR processing (CFAR processing (constant false-alarm rate constant false-alarm rate ))


After After CFARCFAR

2 life rafts, distance 2 life rafts, distance 0,8 nautical mile, focal length = 100mm 0,8 nautical mile, focal length = 100mm



2 life rafts, distance 2 life rafts, distance 0,8 nautical mile, focal length = 0,8 nautical mile, focal length = 100mm100mm

CFAR CFAR &&

integrationintegration



Distance 0,25 nautical mileDistance 0,25 nautical mile

CFARCFAR



CFAR CFAR &&

integrationintegration

Distance 0,25 nautical mileDistance 0,25 nautical mile


Stage 3 – Trials at seaStage 3 – Trials at sea


Search object – 25 life raft with 6 person in Helly-Hansen and RIB rescue boat Search object – 25 life raft with 6 person in Helly-Hansen and RIB rescue boat as assistanceas assistance

DISTANCE 1,35 NmDISTANCE 1,35 Nm


Search object – 25 life raft with 6 person in Helly-Hansen and RIB Search object – 25 life raft with 6 person in Helly-Hansen and RIB rescue boat as assistancerescue boat as assistance



Search object – 25 life raft with 6 person in Helly-Hansen and RIB rescue Search object – 25 life raft with 6 person in Helly-Hansen and RIB rescue boat as assistanceboat as assistance




The movie...The movie...


Bearing informationBearing information

Thermo vision

Control panelControl panel

Night vision

Conclusions:Conclusions:


Search during the nightSearch during the night

People in life raftPeople in life raft

Automatic detectionAutomatic detection

Further work:Further work:

Make final tests of automatic detectionMake final tests of automatic detection

Determine sweep width and PODDetermine sweep width and POD

Determine effect of rain and fogDetermine effect of rain and fog

Computer aided system for search object Computer aided system for search object identificationidentification

Thank you for attentionThank you for attention


20

1)( xw

hk

DT

T

exP

w

hkdxeW OTwx

hk

T

OT 221

2

2

Sweep widthSweep width

Probability of DetectionProbability of Detection

Detection of survivors using thermo-noktovision systemDetection of survivors using thermo-noktovision system

DETECTION OF SURVIVORS USING THERMO & NIGHT VISION SYSTEM (UNDER DEVELOPMENT)

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