Simple,	  Inexpensive	  Aerial	  Photography	  Mapping	  	                with	  Balloons,	  Kites	  or	  UAVs	   Engineer...
Agenda	                                                     •  Why	  bother?	  Aerial	  photomaps	  can	  be	             ...
Step-­‐by-­‐step	  guide	  •    Decide	  what	  you	  want	  to	  do,	  produce	  and	  deliver;	  thinking	  this	       ...
What’s	  needed?	     •    Digital	  camera	  with	  ability	  to	  take	  photos	  automaIcally	  (at	  few-­‐second	    ...
A	  complete	  grassroots	  mapping	  kit	  
Illustrated	  Guide	  (By	  Jeffrey	  Warren)	  	  
Illustrated	  Guide	  (cont.)	  
Illustrated	  Guide	  (cont.)	  
Illustrated	  Guide	  (cont.)	  
Illustrated	  Guide	  (cont.)	  
Illustrated	  Guide	  (cont.)	  
“Neogeographic”	  approach	  to	  inexpensive	  oil	  spill	  mapping	   •    In	  April	  2010,	  the	  Deepwater	  Horiz...
Oil	  Spill	  Mapping	  Kits	                            •  The	  mapping	  kits	  themselves,	                           ...
Oil	  spill	  mapping	  approach	                                                         •  ParIcipants	  visit	  an	    ...
Oil	  spill	  mapping	  trips	  and	  data	                                                                  •  Between	  ...
OrthorecIficaIon	  	  (sItching)	  techniques	  •    Two	  different	  manual	  processing	  methods	  have	  accounted	  fo...
A	  Grassroots	  Mapping	  collaboraIon	  in	  Georgia	    •    In	  the	  country	  of	  Georgia,	  Grassroots	  Mapping	...
•    A	  map	  of	  MesIa,	  in	  the	  SvaneI	  region	  of	  Georgia.	  The	       map	  spans	  5.5	  kilometers	  and	...
•    Flight	  paths	  of	  several	  balloon	  mapping	  flights	  in	  MesIa,	       Georgia,	  during	  a	  3-­‐day	  pro...
Grassroots	  Mapping	  Belize	   •    Grassroots	  Mapping	  Belize	  -­‐	  Pat	  Coyle	  of	  Belize	  Open	        Sourc...
Site:	  Belize	  Open	  Source	  Sustainable	  Development	  	                                                            ...
Planned	  grassroots	  mapping	  program	  in	  Belize	     •    Start	  with	  iniIal	  1-­‐2	  week	  trip	  to	  engage...
Blanca Torres, principal of the August Pine Ridge school, wrote, “The aerial photomapping seems very interesting. I shared...
•  In progress and completed new classroom building•  Richard Obratil, Chapter President, Project Manager/Site EngineerEWB...
•    Balloon	  test	  flight	  in	  the	  front	  yard	  with	  neighbors	  
•    Niles,	  CA:	  Google	  Earth	  imagery	  shows	  center	  under	       construcIon,	  the	  sItched	  map	  shows	  ...
•    PracIce	  flight:	  Angel	  Island,	  CA	  
•    PracIce	  flights:	  Livermore,	  CA	  
•    Sunol,	  CA:	  
•  “Personal aerial photo-mapping session with balloons or kites,” a fundraising auction item, was successful•  7/22/12, N...
Advanced	  topics	  	    •  We’ll	  briefly	  discuss	  advanced	  topics:	        •  IntegraIon	  of	  gps	  data	        ...
IntegraIon	  of	  gps	  data	   Groundbased photos geotagged with gps data, displayed in Picasa map view
IntegraIon	  of	  gps	  data	   Screenshot of aerial photos geotagged with gps data, displayed in Google Earth
Dual-­‐camera	  based	  mulIspectral	  imagery	   •  Dual cameras, visible and IR synched with timer controlled CHDK •  Mu...
Automated	  image	  processing	  and	  3D	  Digital	  ElevaIon	  Models	   •  On	  PLOTS,	  Ned	  Horning	  recently	  sum...
3-­‐D	  Digital	  ElevaIon	  Models	   Clockwise: Bay area examples using pix4d.com, dronemapper.com, www.hypr3d.com
UAVs	        Wired magazine, “The drones are coming”…..
R/C aircraft testing in San Diego with pilot John Shultz
•  Tested Swann "thumb" camera strapped under the AR Parrot 2•  "Training wheel" settings are still on, so altitude is low...
hIp://mapkniIer.org/	  •  MapKniIer	  is	  a	  free	  and	  open	     source	  tool	  for	  combining	  and	     posiPonin...
Get	  Involved	                        • publiclaboratory.org	                          provides	  techniques	            ...
Grass	  Roots	  Mapping	  Supporters	  and	  Collaborators	                The Design Ecology group              at the MI...
Let’s	  fly,	  Q&A	  	  
•  Weare outside flying, catch up with us• We’ll come back and try to make map• Look at the rest of the talk
Grmpng ewbregionalworkshop 12 r2-smlr
Grmpng ewbregionalworkshop 12 r2-smlr
Grmpng ewbregionalworkshop 12 r2-smlr
Grmpng ewbregionalworkshop 12 r2-smlr
Grmpng ewbregionalworkshop 12 r2-smlr
Grmpng ewbregionalworkshop 12 r2-smlr
Grmpng ewbregionalworkshop 12 r2-smlr
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Aerial Photography Mapping Patrick Coyle, P.E. – Belize Open Source This session will demonstrate Simple Aerial Photography Mapping with Balloons or Kites. Aerial photomaps can be very useful for EWB teams for their projects and the communities they work with. Example applications include: community planning, site planning, land boundary adjudication, agricultural planning, ecological evaluations, and documenting changes such as cutting of rain forest, clearing of land, etc. Weather permitting, we’ll meet outside and discuss how to do the mapping, covering what’s needed to take the photos and use software to stitch them together into a single georegistered photomap. We’ll fly kites or balloons to take pictures and afterwards make and share the map. We’ll briefly discuss advanced topics including integration of gps data, dual-camera based multispectral imagery, 3-D Digital Elevation Models, UAVs and automated image processing. Participants are making map from photos taken during session.

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Grmpng ewbregionalworkshop 12 r2-smlr

  1. 1. Simple,  Inexpensive  Aerial  Photography  Mapping     with  Balloons,  Kites  or  UAVs   Engineers  Without  Borders  West  Coast  Regional  Workshop  2012   Patrick  Coyle,  EWB-­‐SFP;  PLOTS,  Belize  Open  Source  -­‐  Sustainable   Development   October  20,  2012  
  2. 2. Agenda   •  Why  bother?  Aerial  photomaps  can  be   very  useful   •  Community,  Site  and  Project  Planning;   Agricultural/  Ecological  planning,   evaluaIon   •  How?  In  summary,  what’s  needed?   •  Equipment,  SoMware,  Supplies,   Materials   •  Step-­‐by-­‐step  guide   •  Examples  from  community  of  users   •  What’s  new   •  Jeff  Warren,  PLOTS,  produced     •  DemonstraIon  –  let’s  fly!   community  maps  in  Lima,  Peru   •  See  results,  Q&A   with  children  and  adults
  3. 3. Step-­‐by-­‐step  guide  •  Decide  what  you  want  to  do,  produce  and  deliver;  thinking  this   through  will  help  to  define  the  requirements  For  example,  here  is  Coyle’s  preliminary  set  of  requirements:  •  Take  detailed  aerial  photos  of  the  Belize  Open  Source  Sustainable  Development   40-­‐acre  property  with  enough  detail  that  individual  trees  are  clear  •  Cover  the  site  with  overlapping  images  and  use  soMware  to  sItch  them  together   into  a  single  photomap  and  georegister  it  to  Google  Earth  imagery  of  the   property  •  Tag  the  individual  photos  with  GPS  data  to  geo-­‐reference  them  for  viewing  on   Google  Maps,  Google  Earth,  or  for  use  with  other  applicaIons  •  Develop  methods  to  use  the  photomaps  for  work  planning,  tracking  progress   and  communicaIng  results  to  encourage  parIcipaIon  in  the  iniIaIve.   Document  the  approach  and  techniques  •  Apply  the  method  to  other  community  mapping  iniIaIves  and  make  it  available   to  EWB  teams  and  schools  and  communiIes  in  Belize  
  4. 4. What’s  needed?   •  Digital  camera  with  ability  to  take  photos  automaIcally  (at  few-­‐second   intervals  or  conInuously  (~1  per  second))   •  (advanced:  pair  of  cameras,  shooIng  vis  and  IR  in  synch)   •  GPS  tracking  unit  (opIonal,  where  needed)   •  Package  to  house  and  protect  the  camera  and  GPS  unit   •  Balloon  or  kite  with  enough  liM  capability  to  carry  the  camera,  GPS  unit,   housing  and  sufficient  tether  line  to  reach  height  of  interest  for  the   photographs  (or  UAV)   •  Safe  area  to  test  the  system  and  process   •  Safe  approach  to  use  the  process  in  the  field   •  Capability  to  process  the  data  and  present  the  results   •  Approach  to  discuss  and  use  the  results  
  5. 5. A  complete  grassroots  mapping  kit  
  6. 6. Illustrated  Guide  (By  Jeffrey  Warren)    
  7. 7. Illustrated  Guide  (cont.)  
  8. 8. Illustrated  Guide  (cont.)  
  9. 9. Illustrated  Guide  (cont.)  
  10. 10. Illustrated  Guide  (cont.)  
  11. 11. Illustrated  Guide  (cont.)  
  12. 12. “Neogeographic”  approach  to  inexpensive  oil  spill  mapping   •  In  April  2010,  the  Deepwater  Horizon  oil  rig  exploded  and   sank  in  the  Gulf  of  Mexico,  iniIaIng  what  may  be  one  of   the  worst  environmental  disasters  in  U.S.  history   •  As  the  spill  grew  in  size,  Jeffrey  Warren  and  Stewart  Long   collaborated  with  the  Louisiana  Bucket  Brigade,  a  New   Orleans-­‐based  environmental  non-­‐profit  group,  and  began   a  volunteer-­‐led  aerial  mapping  project  to  document  the   spill’s  effects   •  The  maps  use  orthorecIfied  photographs  of  key  affected   sites  processed  into  GeoTIFFs  and  Iled  map  services  (TMS)   -­‐  the  public  domain  photographs,  taken  from  balloons  or   kites,  are  among  the  highest  resoluIon  imagery  available   of  the  spill  
  13. 13. Oil  Spill  Mapping  Kits   •  The  mapping  kits  themselves,   assembled  for  less  than  $300   each,  consisted  of:   •         an  8-­‐foot  weather  balloon   •         a  tank  of  helium   •         2000  feet  of  string   •         an  inexpensive,  consumer   grade  digital  camera   •         half  of  a  soda  bople   •         a  large  kite   •         GPS  logger  (opIonal)  
  14. 14. Oil  spill  mapping  approach   •  ParIcipants  visit  an   affected  area,  fill  a  balloon   or  prepare  a  kite   depending  on  wind   condiIons,  and  send  the   camera  in  its  homemade   protecIve  enclosure  up  to   2000  feet  in  the  air   •  By  walking  along  the  beach   or  moving  in  a  boat,   •  Some  maps,  at    ~  2-­‐3  cm   several  kilometers  of   nominal  resoluIon,  can  count   coastline  may  be  imaged  in   birds,  plants  and  other  features,   just  a  few  hours   even  idenIfy  bird  species
  15. 15. Oil  spill  mapping  trips  and  data   •  Between  May  7  and  July   22,  2010  dozens  of   parIcipants  made  36  trips   to  gather  mapping  data,   averaging  almost  one  trip   every  other  day   •  Only  one  trip  failed  to   return  with  imagery,  56%   of  the  trips  returned  with   "excellent"  or  "usable"   •  This  is  a  case  where  the  low-­‐cost   data,  and  over  11,000   mapping  techniques  were   images  were  taken,   applied  to  a  real-­‐world  problem   mapping  conInued   of  immediate  importance   through  January  2011  
  16. 16. OrthorecIficaIon    (sItching)  techniques  •  Two  different  manual  processing  methods  have  accounted  for   the  bulk  of  the  mapping  for  Public  Laboratory  for  Open  Science   and  Technolgy  publiclaboratory.org    to  date:  •  Gonzo  Earth  Image  Processing  is  a  workflow  of  different   commercial  off-­‐the-­‐shelf  (COTS)  and  open-­‐source  GIS  and  digital   image  soMware  packages,  which  has  been  used  to  generate   dozens  of  maps  from  balloons,  kites,  remote  controlled  and   manned  aircraM  •  MapKniper,  mapkniper.org,  is  web-­‐based  soMware  for  users  to   upload  and  recIfy  images  from  a  web  browser  •  Both  export  finished  maps  in  standard  formats  that  can  be   viewed  in  common  GIS  tools  and  integrated  into  exisIng   workflows  
  17. 17. A  Grassroots  Mapping  collaboraIon  in  Georgia   •  In  the  country  of  Georgia,  Grassroots  Mapping  techniques   were  used  alongside  more  tradiIonal  GPS-­‐based   approaches  by  the  OpenMapsCaucasus.org    effort  to   produce  a  public  domain  map  of  the  enIre  country      
  18. 18. •  A  map  of  MesIa,  in  the  SvaneI  region  of  Georgia.  The   map  spans  5.5  kilometers  and  was  captured  in  just  3  days   of  balloon  and  kite  mapping  with  local   OpenMapsCaucasus  staff  and  parIcipaIng  students      
  19. 19. •  Flight  paths  of  several  balloon  mapping  flights  in  MesIa,   Georgia,  during  a  3-­‐day  project  to  map  the  enIre  city  •  The  pictured  flights  reached  1.4  kilometers  above  ground   level  
  20. 20. Grassroots  Mapping  Belize   •  Grassroots  Mapping  Belize  -­‐  Pat  Coyle  of  Belize  Open   Source  Sustainable  Development  is  planning  to  apply   these  techniques  to  detailed  mapping  of  a  40-­‐acre   property  in  northwest  Belize  and  for  other  community   mapping  iniIaIves   •  To  date,  I  have  commissioned  the  mapping  tools  and  am   conInuing  to  pracIce  the  techniques  in  the  Bay  Area  
  21. 21. Site:  Belize  Open  Source  Sustainable  Development     •  This  40-­‐acre  rural  property   is  located  in  northwestern   Belize  near  the  Mexican   and  Guatemala  borders   about  16  miles  from   Orange  Walk  Town,   between  the  villages  of   August  Pine  Ridge  and  San   •  Google  Maps  shows  it,  but  unIl   Felipe  and  3.5  miles  to  Rio   recently,  two  more  clicks  in  and   Hondo  Belize/Mexico   you  ran  out  of  pixels  –  it’s  beper   border   now   belizeopensource.org  
  22. 22. Planned  grassroots  mapping  program  in  Belize   •  Start  with  iniIal  1-­‐2  week  trip  to  engage  schools,  develop  capabiliIes   and  make  iniIal  set  of  maps  (Belize  Open  Source  property,  August  Pine   Ridge  school  classrooms  and  surrounding  community,  and  others   associated  with  parIcipaIng  schools)   •  Do  a  video  and  web  documentary  as  we  go,  in  context  of  a  plan  to:   •  develop  capabiliIes,   •  archive,  access  and  communicate  with  the  images,   •  implement  training  through  classes  in  local  schools,   •  with  ongoing  workshops  for  future  visitors  to  extend  techniques   and  map  more  of  the  countrys  sites  of  interest  with  emphasis  on   community  needs  and  benefits  to  local  users,  as  well  as  some  the   gorgeous  sites   •  Muffles  College  Environmental  Sciences  program  is  interested  in   parIcipaIng.  Jeff  Warren  and  Stewart  Long,  Public  Laboratory  for  Open   Technology  and  Science,  have  parIcipated  in  planning  
  23. 23. Blanca Torres, principal of the August Pine Ridge school, wrote, “The aerial photomapping seems very interesting. I shared with my children and sisters the imagesof our village … and they just loved them. … I welcome these opportunities whereI can involve my students in new learning experiences. I am very interested inexposing them through your mapping project. We feel pride in having ourcommunity appear in internet pages and more if we are involved in getting thoseimages.”
  24. 24. •  In progress and completed new classroom building•  Richard Obratil, Chapter President, Project Manager/Site EngineerEWB-Cleveland State University Chapter, wrote, “... Here are pictures of thebuilding…”
  25. 25. •  Balloon  test  flight  in  the  front  yard  with  neighbors  
  26. 26. •  Niles,  CA:  Google  Earth  imagery  shows  center  under   construcIon,  the  sItched  map  shows  completed  facility  
  27. 27. •  PracIce  flight:  Angel  Island,  CA  
  28. 28. •  PracIce  flights:  Livermore,  CA  
  29. 29. •  Sunol,  CA:  
  30. 30. •  “Personal aerial photo-mapping session with balloons or kites,” a fundraising auction item, was successful•  7/22/12, Nile Runge, who had bid on the item at a LivermoreRotary Club fundraiser, and I flew two mylar sleeping bag balloons witha Canon A1200, shooting in continuous mode in a juice-bottle rig.•  We flew at Shadow Cliffs Regional Recreation Area, Pleasanton, CA,a part of the East Bay Regional Park District
  31. 31. Advanced  topics     •  We’ll  briefly  discuss  advanced  topics:   •  IntegraIon  of  gps  data   •  Dual-­‐camera  based  mulIspectral  imagery   •  Automated  image  processing  and  3-­‐D  Digital  ElevaIon   Models   •  UAVs    
  32. 32. IntegraIon  of  gps  data   Groundbased photos geotagged with gps data, displayed in Picasa map view
  33. 33. IntegraIon  of  gps  data   Screenshot of aerial photos geotagged with gps data, displayed in Google Earth
  34. 34. Dual-­‐camera  based  mulIspectral  imagery   •  Dual cameras, visible and IR synched with timer controlled CHDK •  Multispectral image processing and rectification – automated with Ned Horning’s software
  35. 35. Automated  image  processing  and  3D  Digital  ElevaIon  Models   •  On  PLOTS,  Ned  Horning  recently  summarized  several  cloud-­‐ based  or  desktop  soMware  packages;  some  free  with  limits,   some  open  source,  which  use  structure  from  moIon  (SFM)   soMware  to  provide  automated  image  processing,  including:     •  Online:  www.hypr3d.com,  dronemapper.com,  pix4d.com,   photosynth.net,  www.terrapanlabs.com   •  Proprietary  soMware:  www.123dapp.com/catch,   www.agisoM.ru/products/photoscan   •  Open  source:  VisualSFM,  homes.cs.washington.edu/ ~ccwu/vsfm/  
  36. 36. 3-­‐D  Digital  ElevaIon  Models   Clockwise: Bay area examples using pix4d.com, dronemapper.com, www.hypr3d.com
  37. 37. UAVs   Wired magazine, “The drones are coming”…..
  38. 38. R/C aircraft testing in San Diego with pilot John Shultz
  39. 39. •  Tested Swann "thumb" camera strapped under the AR Parrot 2•  "Training wheel" settings are still on, so altitude is low, maybe 15-20 feet•  The AR Parrot 2 is a toy, it also brings the drone "baggage”•  The cautionary notes, especially those of lost, fly-away drones are sobering•  Ill proceed with caution. But, it is fun!
  40. 40. hIp://mapkniIer.org/  •  MapKniIer  is  a  free  and  open   source  tool  for  combining  and   posiPoning  images  in   geographic  space  into  a   composite  image  map    
  41. 41. Get  Involved   • publiclaboratory.org   provides  techniques   and  tools,  case  studies   • ParIcipate:  join  the   mailing  list   • Start  a  grassroots   mapping  project   • Apply  the  techniques   to  your  project  
  42. 42. Grass  Roots  Mapping  Supporters  and  Collaborators   The Design Ecology group at the MIT Media Lab You
  43. 43. Let’s  fly,  Q&A    
  44. 44. •  Weare outside flying, catch up with us• We’ll come back and try to make map• Look at the rest of the talk

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