EWB West Coast Regional Workshop October 2011: Simple Aerial Photography Mapping with Balloons or Kites
Upcoming SlideShare
Loading in...5
×
 

EWB West Coast Regional Workshop October 2011: Simple Aerial Photography Mapping with Balloons or Kites

on

  • 498 views

Demonstrate and discuss 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 ...

Demonstrate and discuss 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 such as counting species, map mapping vegetation and habitat, etc. Document changes such as cutting of rain forest clearing of land, etc.

We'll cover how to do the mapping, covering what's needed to take the images and use software to stitch them together into a single photomap and georegister the photomap to tie it into Google Earth imagery. Weather permitting, we'll go outside and fly kites or balloons to take pictures and afterwards make and share the map.

Statistics

Views

Total Views
498
Views on SlideShare
498
Embed Views
0

Actions

Likes
1
Downloads
5
Comments
0

0 Embeds 0

No embeds

Accessibility

Categories

Upload Details

Uploaded via as Adobe PDF

Usage Rights

© All Rights Reserved

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Processing…
Post Comment
Edit your comment

EWB West Coast Regional Workshop October 2011: Simple Aerial Photography Mapping with Balloons or Kites EWB West Coast Regional Workshop October 2011: Simple Aerial Photography Mapping with Balloons or Kites Presentation Transcript

  • Simple,  Inexpensive  Aerial  Photography  Mapping     with  Balloons  or  Kites     Engineers  Without  Borders  West  Coast  Regional  Workshop  2011  Patrick  Coyle,  EWB-­‐SFP;  Grassroots  Mapping,  Public  Laboratory  for  Open  Technology  and  Science,  Belize  Open  Source  -­‐  Sustainable  Development   October  22,  2011  
  • Agenda   •  Why  bother?  Aerial  photomaps  can  be   very  useful   •  Community,  Site  and  Project  Planning;   Agricultural/  Ecological  planning,   evaluaGon   •  How?  In  summary,  what’s  needed?   •  Equipment,  SoKware,  Supplies,   Materials   •  Step-­‐by-­‐step  guide   •  Examples  from  community  of  users   •  DemonstraGon  –  let’s  fly!   •  Jeff  Warren,  Grassroots   •  Stop  by  aKer  –  see  results,  Q&A   Mapping,  produced    community   maps  in  Lima,  Peru  with  children   and  adults
  • 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  soKware  to  sGtch  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  applicaGons  •  Develop  methods  to  use  the  photomaps  for  work  planning,  tracking  progress   and  communicaGng  results  to  encourage  parGcipaGon  in  the  iniGaGve.   Document  the  approach  and  techniques  •  Apply  the  method  to  other  community  mapping  iniGaGves  and  make  it  available   for  other  users  like  EWB  and  schools  and  communiGes  in  Belize  
  • What’s  needed?   •  Digital  camera  with  ability  to  take  photos  automaGcally  (at  few-­‐second   intervals  or  conGnuously  (~1  per  second))   •  GPS  tracking  unit  (opGonal,  where  needed)   •  Package  to  house  and  protect  the  camera  and  GPS  unit   •  Balloon  or  kite  with  enough  liK  capability  to  carry  the  camera,  GPS  unit,   housing  and  sufficient  tether  line  to  reach  height  of  interest  for  the   photographs   •  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  
  • 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  late  April  2010,  the  Deepwater  Horizon  oil  rig  exploded   and  sank  in  the  Gulf  of  Mexico,  iniGaGng  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  orthorecGfied  photographs  of  key  affected   sites  processed  into  GeoTIFFs  and  Gled  map  services  (TMS)   -­‐  the  public  domain  photographs,  taken  from  balloons  or   kites,  are  among  the  highest  resoluGon  imagery  available   of  the  spill  
  • 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  bonle   •         a  large  kite   •         GPS  logger  (opGonal)  
  • Oil  spill  mapping  approach   •  ParGcipants  visit  an   affected  area,  fill  a  balloon   or  prepare  a  kite   depending  on  wind   condiGons,  and  send  the   camera  in  its  homemade   protecGve  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  resoluGon,  can  count   coastline  may  be  imaged  in   birds,  plants  and  other  features,   just  a  few  hours   even  idenGfy  bird  species
  • Oil  spill  mapping  trips  and  data   •  Between  May  7  and  July   22,  2010  dozens  of   parGcipants  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  conGnued   of  immediate  importance   through  January  2011  
  • OrthorecGficaGon    (sGtching)  techniques  •  Two  different  manual  processing  methods  have  accounted  for   the  bulk  of  the  mapping  for  Grassroots  Mapping   grassrootsmapping.org  to  date:  •  Gonzo  Earth  Image  Processing  is  a  workflow  of  different   commercial  off-­‐the-­‐shelf  (COTS)  and  open-­‐source  GIS  and  digital   image  soKware  packages,  which  has  been  used  to  generate   dozens  of  maps  from  balloons,  kites,  remote  controlled  and   manned  aircraK  •  Kniner  soKware  consists  of  a  free  web-­‐based  interface  for  users   to  upload  and  recGfy  images  from  a  web  browser  •  Both  export  finished  maps  in  standard  formats  that  can  be   viewed  in  common  GIS  tools  and  integrated  into  exisGng   workflows  
  • A  Grassroots  Mapping  collaboraGon  in  Georgia   •  In  the  country  of  Georgia,  Grassroots  Mapping  techniques   were  used  alongside  more  tradiGonal  GPS-­‐based   approaches  by  the  OpenMapsCaucasus.org    effort  to   produce  a  public  domain  map  of  the  enGre  country      
  • •  A  map  of  MesGa,  in  the  SvaneG  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  parGcipaGng  students      
  • •  Flight  paths  of  several  balloon  mapping  flights  in  MesGa,   Georgia,  during  a  3-­‐day  project  to  map  the  enGre  city  •  The  pictured  flights  reached  1.4  kilometers  above  ground   level  
  • 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  iniGaGves   •  To  date,  I  have  commissioned  the  mapping  tools  and  am   conGnuing  to  pracGce  the  techniques  in  the  Bay  Area  
  • 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  unGl   Felipe  and  3.5  miles  to  Rio   recently,  two  more  clicks  in  and   Hondo  Belize/Mexico   you  ran  out  of  pixels  –  it’s  bener   border   now   belizeopensource.org  
  • Planned  grassroots  mapping  program  in  Belize   •  Start  with  iniGal  1-­‐2  week  trip  to  engage  schools,  develop  capabiliGes   and  make  iniGal  set  of  maps  (Belize  Open  Source  property,  August  Pine   Ridge  school  classrooms  and  surrounding  community,  and  others   associated  with  parGcipaGng  schools)   •  Do  a  video  and  web  documentary  as  we  go,  in  context  of  a  plan  to:   •  develop  capabiliGes,   •  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   parGcipaGng.  Jeff  Warren  and  Stewart  Long,  Public  Laboratory  for  Open   Technology  and  Science,  have  parGcipated  in  planning  
  • 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.”
  • Richard Obratil, Chapter President, Project Manager/Site EngineerEWB-Cleveland State University Chapter, wrote, “... here is a picture of thebuilding. Im working on a price estimate to complete the project and am workingto email that off to the BNE Trust in the next couple of hours. One thing I needsome input on from the leadership is a prospective date for a buildinginauguration, maybe in January 2012 before the Spring semester begins.”
  • •  Balloon  test  flight  in  the  front  yard  with  neighbors  
  • •  Niles,  CA:  Google  Earth  imagery  shows  center  under   construcGon,  the  sGtched  map  shows  completed  facility  
  • •  PracGce  flight:  Angel  Island,  CA  
  • •  PracGce  flights:  Livermore,  CA  
  • •  Sunol,  CA:  
  • R/C aircraft testing in San Diego with pilot John Shultz
  • hLp://mapkniLer.org/  •  MapKniLer  is  a  free  and  open   source  tool  for  combining  and   posiQoning  images  in   geographic  space  into  a   composite  image  map    
  • Get  Involved   • grassrootsmapping.org   and   publiclaboratory.org   provide  techniques   and  tools,  case  studies   • ParGcipate:  join  the   mailing  list   • Start  a  grassroots   mapping  project   • Apply  the  techniques   to  your  project  
  • Grass  Roots  Mapping  Supporters  and  Collaborators   The Design Ecology group at the MIT Media Lab You
  • Let’s  fly;  stop  back  later:  for  results,  Q&A