FOR220

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FOR 220 Aerial Photo Interpretation and Forest
Measurements
Lecture 22 Hand-held Data Collectors, Review, Wra
p-Up
FOR 220 Aerial Photo Interpretation and Forest
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Announcements
Current Grades
Current grade sheet will be posted outside Peavy
035 late today or tomorrow (Monday). May not
include Lecture assignment 20, or all of lab 10.
Assignments
All assignments need to be in by 500 on Friday
June 6th !!! Please use mailbox in Forest
Resources Office (Peavy 280)
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Announcements
Final Exam
When Tuesday June 9, 600 PM Where Peavy
242 Example Exam available on website I will
provide an equation sheet with formulas,
including those from Exams 1 and 2
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Hand-Held Data Collectors
What are they?
Field computers Small enough to carry around
Loaded with software to allow direct entry of
field data, eliminating or reducing potential
problems associated with bad hand writing
missing data incorrect data values
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Hand-Held Data Collectors
How does one evaluate them?
Cost Size Weight Screen Display
Operating System Keyboard Memory Software
availability Packaging
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Hand-Held Data Collectors
Corvallis Microtechnology
MC-5 Cost 1,150 - 1,450 Size 9 x 4 x
2 Weight 1 lb. 12 oz. Screen Display 8 lines
x 21 char. Operating system CMT ROS Keyboard
55-key Memory 384 k - 8 Mb Software
availability MCSS, custom software Packaging
water-proof dust-proof shock-resistant
Notice Operating System !!!
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Hand-Held Data Collectors
Corvallis Microtechnology
PC-5 Cost 1,850 Size 9 x 4 x 2 Weight 1
lb. 13 oz. Screen Display 8 lines x 21
char. Operating System DOS Keyboard
55-key Memory 2 Mb - 8 Mb Software
availability C, dBase, etc. Packaging water-proof
dust-proof shock-resistant
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Hand-Held Data Collectors
Itronix Husky Hunter
Husky Hunter Cost ? Size 9 x 6 x 1 Weight
2 lb. 10 oz. Screen Display 10 lines x 60
char. Operating system DOS Keyboard
QWERTY Memory 1 Mb - 4 Mb Software
availability custom software Packaging water-
proof
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Hand-Held Data Collectors
Itronix Husky
Husky MP 2500 or FS/3 Cost 1,850 - 3,450 Size
9 x 5 x 2 Weight 1 lb. 10 oz. Screen
Display 8 lines x 40 char. Operating
system DOS Keyboard 56-key Memory 2
Mb Software availability custom
software Packaging water-proof dust-proof sho
ck-proof
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Hand-Held Data Collectors
Juniper Systems
Juniper Systems Allegro Cost 3,200 -
3,300 Size 10 x 5 x 3 Weight 1 lb. 12
oz. Screen Display 25 lines x 40
char. Operating system DOS or WindowsCE Keyboard
50 keys Memory 16-32 Mb Software
availability custom software Packaging water-proo
f dust-proof shock-proof
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Hand-Held Data Collectors
Hewlett-Packard
HP Jornada Cost 900 Size 6.5 x 4 x
1 Weight 1 lb. 2 oz. Screen Display
? Operating system WindowsCE Keyboard
QWERTY Memory 32 Mb Software availability
custom software Packaging ?
Not recommended for cruising! May be useful for
some research.
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Hand-Held Data Collectors
Trimble
Trimble TSCE Field Computer Cost A lot Size
10 x 5 x 2 Weight 2.2 lb. Screen
Display 320 x 240 VGA Operating
system WindowsCE Keyboard 57 keys Memory
32-64Mb RAM, 512Mb Flash Software availability
Microsoft apps, ESRI, custom
software Packaging water-proof, dust-proof,
shock-proof
Trimble TSCE
Trimble Recon
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Hand-Held Data Collectors
Laptops Palm Pilots iPads etc.
Not recommended for cruising! May be useful for
some research.
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Course Review
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Review
Lecture 1
Why measure forest resources?
Accurate measurements are essential for
scientifically managing natural resources.
Management of natural resources requires
knowledge and location of current features.
The role of measurements is to supply the
numerical data required to make prudent
management decisions.
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Review
Lecture 2
Statistical computations Mean, median, mode the
average the middle value the most frequently
appearing value
Variance a measure of dispersion among
individual observations about their average
value computed before the standard deviation
Standard deviation another measure of
dispersion 68 of observations should be within
1 standard deviation of the mean 95 will be
within 1.96 standard deviations
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Review
Lecture 3
QMD Mean Dia.
Tree Measurements
A
a
B
b
Eye
Horizontal distance D
Tree height (A - B)
Example D 100 feet, a 45º, b 10º A
TAN(45) 100 feet 100.0 feet B TAN(10)
100 feet 17.6 feet Tree height 82.4 feet
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Review
Lecture 4
Sampling Designs
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Review
Lecture 5
Fixed Area Sampling
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Review
Lecture 6
Point Sampling
?
Offset tree bole in prism has no overlap with
actual tree bole
Offset tree bole in prism does overlap actual
tree bole
Borderline tree - must measure distance
from point center
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Review
Lecture 7
Purpose of inventories
Determine the value (volume, quantity, existence,
etc.) of resources in an area. As precisely as
possible Given time constraints Given budget
constraints Need Reliable estimate of the area
to be inventoried Maps, air photos, GIS
databases Measurements of an unbiased sample of
the resources
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Review
Lecture 8
Introduction to Aerial Photography -
Electromagnetic spectrum
Black and White
Panchromatic 0.4-0.7 ?m BW Infrared 0.4-0.9
?m True infrared 0.7-0.9 ?m
Color
Normal color 0.4-0.7 ?m Color infrared 0.4-0.9 ?m
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Review
Lecture 8
Composed of three primary additive colors red,
green, blue These cant be created by adding
other colors together. Adding all three primary
additive colors of light produces the color
white.

• Landscape features differentially reflect
• various wavelengths of light
• Spectral Signatures

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Review
Lecture 9
Geometry and Trigonometry
c
B
a
C
A
b
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Review
Lecture 10
Geometry of a Vertical Aerial Photograph
r
r
d
negative
f
lens
H-h
H
R
A
h
Ground
E
Nadir
PPoint
Isocenter
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Review
Lecture 11
Stereoscopic Vision
Principal Point
Geometric center of the photograph, and the
intersection of the X and Y axes. The
intersection of the North-South and East-West
fiducial marks.
Conjugate Principal Points
Geometric center of a photograph's stereo pair
(not the one at hand), located on the photograph
at hand.
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Review
Lecture 11
Stereo Parallax
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Review
Lecture 12
Scale of a Vertical Aerial Photograph
PSR500 12,560
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Review
Lecture 13
Horizontal Measurements of an Aerial Photograph
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Review
Lecture 14
Map Projection and Coordinate Systems
Datum
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Review
Lecture 15
Aerial Photo Interpretation Principle 1
Absolute and Relative Size Principle 2
Shape Principle 3 Shadow Principle 4 Tone
or Color Principle 5 Texture Principle 6
Pattern Principle 7 Location, Association,
Convergence of Evidence
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Review
Lecture 16
Remote Sensing
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Review
Lecture 17
Remote Sensing

• Spatial Resolution
• Spectral Resolution
• Temporal Resolution

Active vs. Passive Sensors
NDVI (Band 4 - Band 3) / (Band 4 Band 3)
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Review
Lecture 18
Global Positioning Systems
Signals CA Code Carrier phase (L1, L2) P Code
Sources of Error 1. Receiver clock 2.
Ephemeris 3. Atmosphere 4. Satellite clock
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Review
Lecture 19
Geographic Information Systems
Vector
Raster
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Review
Lecture 19
GIS database acquisition, creation, editing, and
analytical processes
Potential land sale area
Property after erasing land sale area from the
stands database
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Review
Lecture 20
Guest Lecturer -- Dirk Pflugmacher
LiDAR Applications in Natural Resources
Discrete Return Waveform recording LiDAR
applications -- forestry and others Forest
Inventory Grid-cell (plot) based
approach Individual tree extraction
approach Typical deliverables from a LiDAR
mission 6 deliverables, what are they?
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Where Would You Go for Further Instruction?
As of Spring 2008, Courses may change in near
future!
FE 308 Introduction to Geomatics FE 309
Photogrammetry FE 310 Forest Route Surveying FE
311 Advanced Forest Surveying FE 357 GIS and
Forest Engineering Applications FOR 321 Forest
Mensuration FOR 420 Adv. Remote Sensing FOR 421
Adv. GIS in Natural Resources GEO 265 GIS
Practicum GEO 444 Remote Sensing GEO 445
Computer-Assisted Cartography GEO 465 Geographic
Information Systems
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Where Would You Go for Further Involvement?
ASPRS American Society of Photogrammetry and
Remote Sensing

• Multi-disciplinary Professional Organization
• Student chapter formed in the College of Forestry
• Diverse membership
• GIS
• GPS
• Remote Sensing
• Aerial Photography
• Surveying
• Technological Application (natural resources)

OSU-ASPRS Website http//www.geo.orst.edu/asprs/
National ASPRS Website http//www.asprs.org/
Contact Mike Wing, Forest Engineering Dept..
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Where Would You Go for Further Involvement?
SAF Society of American Foresters
Professional Organization Student chapter formed
in the College of Forestry Diverse membership
SAF-OSU Student Chapter http//www.cof.orst.edu/c
of/clubs/saf/ SAF-Marys Peak Chapter http//www
.forestry.org/or/chapters/marys.php National SAF
Website http//www.safnet.org/
Contact Jim Kizer, Forest Engineering Dept.
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Closing Remarks
Success?
Good grades
Field experience (summer, internships, co-op
program)

• Leadership experience (Forestry Club, etc.)
• Professional interaction -- Professional
  membership
• (ASPRS, SAF)

• Summer Internships (or similar experience)

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Closing Remarks
Never say youll never use this stuff
Yes, you will, almost every day
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Get that internship, but also enjoy yourself this
summer
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What U.S. city is this? How do we know?