Skip to main content

LUP Student Papers

LUND UNIVERSITY LIBRARIES

Designing & Implementing A Geospatial Mobile Application

Karlsson, Christoffer LU and Hirschfeld, Alfred (2022) In Examensarbete i geografisk informationsteknik / Thesis in interaction design EXTM05 20212
Dept of Physical Geography and Ecosystem Science
Ergonomics and Aerosol Technology
Abstract
Rephotography is the act of recapturing a historic photo from the same viewpoint and is a tool for studying change. This thesis explores the development, design and evaluation of a mobile application for rephotography of Smapshot photos. Rephotography would have to be based on sensors in smartphones and previous research has demonstrated a lack of accuracy when computing the orientation with these sensors. We implemented two techniques for rephotography: orientation angles of smartphones and transparency of Smapshot photos. Our findings shows that from a user perspective transparency is preferred, however orientation angles result in a more accurate re-creation of the historic photo.
Abstract (Swedish)
Omfotografering är handlingen att återfånga ett historiskt foto från samma synvinkel och är ett verktyg för att studera förändring. Detta examensarbete utforskar utvecklingen, designen och utvärderingen av en mobilapplikation för omfotografering av Smapshot-foton. Omfotografering i en mobilapplikation skulle behöva baseras på sensorerna i mobilen och tidigare forskning har visat på bristande noggrannhet när man beräknar orienteringen med dessa sensorer. Vi implementerade två tekniker för omfotografering: orienteringsvinklar för smartphones och transparens för Smapshot-foton. Våra resultat visar att ur ett användarperspektiv föredras transparens, men orienteringsvinklar resulterar i ett mer exakt återskapande av det historiska fotot.
Popular Abstract
Have you ever seen a historic photo and wondered how
the passage of time has affected the place that the photo
depicts? Historical photos of landscapes have a high culture
and scientific value because they illustrate the past state of
the environment. If one were to recapture the same view,
at another time, the changes in nature could be compared.
In today’s world the environment is rapidly changing, and
a landscape might look vastly different from one decade
to another. This is why rephotography could play a crucial
role in today’s world. We developed two techniques for
rephotography of historical photos in a mobile application:
using the orientation of smartphones and transparency of
Smapshot photos.
Please use this url to cite or link to this publication:
author
Karlsson, Christoffer LU and Hirschfeld, Alfred
supervisor
organization
alternative title
Designing And Implementing A Rephotography Mobile Application For Smapshot
course
EXTM05 20212
year
type
H2 - Master's Degree (Two Years)
subject
keywords
interaction design, geographic data, mobile application development, rephotography
publication/series
Examensarbete i geografisk informationsteknik / Thesis in interaction design
report number
32
language
English
additional info
External supervisors: Jens Ingensand, Institute of Territorial Engineering/Haute École D’Ingénierie et de Gestion
du Canton de Vaud (HEIG-VD/HES-SO). Olivier Ertz, Institute of Media Engineering, HEIG-VD/Haute École D’Ingénierie et de Gestion
du Canton de Vaud (HEIG-VD/HES-SO).

Thesis in: Examensarbete i geografisk informationsteknik / Thesis in interaction design
id
9075904
date added to LUP
2022-03-08 16:22:57
date last changed
2022-03-09 12:18:14
@misc{9075904,
  abstract     = {{Rephotography is the act of recapturing a historic photo from the same viewpoint and is a tool for studying change. This thesis explores the development, design and evaluation of a mobile application for rephotography of Smapshot photos. Rephotography would have to be based on sensors in smartphones and previous research has demonstrated a lack of accuracy when computing the orientation with these sensors. We implemented two techniques for rephotography: orientation angles of smartphones and transparency of Smapshot photos. Our findings shows that from a user perspective transparency is preferred, however orientation angles result in a more accurate re-creation of the historic photo.}},
  author       = {{Karlsson, Christoffer and Hirschfeld, Alfred}},
  language     = {{eng}},
  note         = {{Student Paper}},
  series       = {{Examensarbete i geografisk informationsteknik / Thesis in interaction design}},
  title        = {{Designing & Implementing A Geospatial Mobile Application}},
  year         = {{2022}},
}