Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Impact of Anomalies in Simulated Crowds
KTH, School of Electrical Engineering and Computer Science (EECS).
KTH, School of Electrical Engineering and Computer Science (EECS).
2018 (English)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesisAlternative title
Påverkan av avvikelser i simulerade folkmassor (Swedish)
Abstract [en]

Virtual simulations of crowds are useful for many different fields of research and entertainment, such as simulations of evacuation scenarios or in video games that use large amounts of moving agents. This study examines if the noticeability of movement anomalies are dependent on their location on the screen and the density of the virtual crowd. The study also examines if movement anomalies change the perceived realism of the crowd simulation even if it is not consciously found.

An user experiment with 12 participants was conducted, where the subjects watched 48 videos recorded from low and high density crowd simulation scenarios. An eye tracker gathered data from the participants while they watched the videos. Half of these videos had movement anomalies in specific locations. For each video, the observer filled in a part of a questionnaire to answer if they perceived the video to be realistic and if they saw a movement anomaly.

The results showed a small correlation between anomalies in the center of the screen and an increase in noticeability. They also showed that the density of the crowd will have an impact on the detection rate of an anomaly. Finally, the results showed no indication that unnoticed anomalies would effect the subjects perceived realism.

Abstract [sv]

Virtuella simulationer av folkmassor är användbara i många olika fält inom forskning och nöje, som till exempel simuleringar av evakueringsscenarion eller datorspel som har en stor mängd aktörer som rör sig. Denna studie undersöker hur märkbara rörelseavvikelser är beroende på deras position på skärmen och densiteten av den virtuella folkmassan. Studien undersöker också om rörelseavvikelser påverkar den uppfattade nivån av realism hos en folkmassa även om den inte är medvetet upptäckt.

Ett experiment med 12 deltagare utfördes där deltagarna såg 48 filmer som var inspelade från en simulering av en folkmassa i scenarion som hade en låg eller hög densitet av virtuella människor. Hälften av dessa filmer hade rörelseavvikelser på specifika platser. Efter varje film så fyllde deltagaren i en del av ett formulär som frågade hur verklighetstrogen folkmassan var och om deltagaren såg en rörelseavvikelse.

Resultaten visade en liten korrelation mellan rörelseavvikelser i mitten av skärmen och en ökning av märkbarhet. Resultaten visade också att densiteten av folkmassan har en påverkan på märkbarheten av rörelseavvikelser. Resultaten indikerade inte att oupptäckta rörelseavvikningar skulle påverka den uppfattade realismen av folkmassan.

Place, publisher, year, edition, pages
2018.
Series
TRITA-EECS-EX ; 2018:261
National Category
Computer Sciences
Identifiers
URN: urn:nbn:se:kth:diva-229801OAI: oai:DiVA.org:kth-229801DiVA, id: diva2:1214497
Subject / course
Computer Science
Educational program
Master of Science in Engineering - Computer Science and Technology
Supervisors
Examiners
Available from: 2018-09-04 Created: 2018-06-07 Last updated: 2018-09-04Bibliographically approved

Open Access in DiVA

fulltext(3957 kB)40 downloads
File information
File name FULLTEXT01.pdfFile size 3957 kBChecksum SHA-512
3d9850525c7e0bfc19521c63da75419107c5429c941a2981d1b03731843d93b118beefd9f0b1fa5fbc4ab63dfd0d55de51cd0e50f8924569b17fdd03dc4eaa31
Type fulltextMimetype application/pdf

By organisation
School of Electrical Engineering and Computer Science (EECS)
Computer Sciences

Search outside of DiVA

GoogleGoogle Scholar
Total: 40 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

urn-nbn

Altmetric score

urn-nbn
Total: 202 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf