Remote Sensing for Tree Counting Presentation - …...Remote Sensing for Tree Counting Presentation...

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Cooperative Extension Service J.Frank Schmidt Nursery, September 9, 2010 REMOTE SENSING FOR TREE COUNTING Presenter: Dharmendra Saraswat

Transcript of Remote Sensing for Tree Counting Presentation - …...Remote Sensing for Tree Counting Presentation...

Cooperative Extension Service

J.Frank Schmidt Nursery, September 9, 2010

REMOTE SENSING FOR TREE COUNTING

Presenter: Dharmendra Saraswat

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OUTLINE

Process UsedResults

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RESOURCES

One ft resolution, natural color, aerial imageImage processing software

Computer with 4 GB RAM and 2.0 GHz processor

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SCENARIOS ANALYZED

Grove Statistics

Area: approx 7.35 acres

Density: approx. 130 trees/acre

Total Tree #: 1011

Grove Statistics

Area: approx 21 acres

Density: approx. 134 trees/acre

Total Tree #: 2817

Grove Statistics

Area: approx 8.0 acres

Density: approx. 112 trees/acre

Total Tree #: 898

Grove Statistics

Area: approx 7.4 acres

Density: approx. 115 trees/acre

Total Tree #: 857

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CHALLENGESAge variation (mature vs reset)

Tree shadow

Spectral reflectivity- soil, weeds, grower practices (pruning, planting density, direction)

Angle of image acquisition

Seasonal effects- cloud(Source: Report Contract # 02‐17)

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PROCESSCount Trees using 1 ft resolution, natural color,

aerial imageryRow 1

Net Accuracy=Computer countReference count

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PROCESS- CONTD.

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PROCESS- CONTD.

Accuracy

Total Tree #: 1011

Software count: 964

Double: 10

Missing: 47

Net Count Accuracy: 964/1011*100= ~95 %

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PROCESS- CONTD.

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PROCESS- CONTD.

Accuracy

Total Tree #: 2817

Software count: 2640

Double: 5

Missing: 177

Net Count Accuracy: 2640/2817*100= ~94%

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PROCESS- CONTD.

Accuracy

Total Tree #: 898

Software count: 859

Double: 5

Missing: 39

Net Count Accuracy: 898/859*100= ~96%

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PROCESS- CONTD.

Accuracy

Total Tree #: 857

Software count: 826

Double: 25

Missing: 31

Net Count Accuracy: 826/857*100= ~96%

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SUMMARYOverall count accuracy for various size groves

ranged from 94-96%. The count accuracy was on an average better than

reported by NASS (~80%).Remote sensing could be a potential solution for

determining tree count from large areasChallenges will be there but efforts are needed to

find solutions

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J.Frank Schmidt Office, September 9, 2010

RFIDDates back to 1973- automatic toll

collection in NYTracking movement and position of

assets and goodsHeart- RFID tag and Reader

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J.Frank Schmidt Office, September 9, 2010

WHAT WE LEARNT?RFID tags in NurseryAt the seedling or plug stage, flats containing plants can betagged and tracked using the flat information. Informationsuch as the plant name, growing location, chemicalapplications, and growing conditions can all be stored in theRFID tag. When small plants are moved from flats toindividual containers, new tags are required that retains theprevious history. When tagging larger plants, distance betweentag and reader will play a very important role.

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J.Frank Schmidt Office, September 9, 2010

CHALLENGESMatching appropriate tags with your

condition and requirement-UHF (868-956MHz), more than a m, metal/liquid

Tags and reader interfaces are proprietary

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J.Frank Schmidt Office, September 9, 2010

ACKNOWLEDGMENTSJ. Frank Schmidt Foundation for

Exploratory SupportUniversity of Florida- Dr.(s) Gene

Albrigo and Reza Ehsani

Questions?