Praćenje sitnih objekata u toplinskim slikama

undergraduate thesis

• Title (english): Tracking tiny objects in thermal imagery
• Author: Duje Štolfa
• Mentor: Siniša Šegvić (mentor)
• Committee member: Siniša Šegvić (predsjednik povjerenstva)
• Committee member: Josip Šarić (član povjerenstva)
• Committee member: Ivan Sabolić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2024-07-01, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Computing

Abstract

Prepoznata je potreba za automatizacijom obrade toplinskih snimki za potrebe monitoringa ornitofaune i faune šišmiša. U pojedinim slučajevima snimljene jedinke mogu biti velike tek nekoliko piksela što ih čini teško primjetnima i što čini ovaj zadatak vrlo zahtjevnim. Rad pristupa praćenju sitnih objekata kao nenadziranom problemu i procjenjuje prikladnost metode za raspoznavanje takvih objekata od pozadine pomoću algoritma pretraživanja k najbližih susjeda i uspoređuje ju s metodama iz literature. Provedenim istraživanjem uspješno su prepoznata ograničenja primjene tih metoda na snimke s izraženim šumom i neželjenim pomacima u sceni te su time postavljeni temelji za razvoj takvog sustava za praćenje.

Abstract (english)

The need for an automatic thermal video analysis system has been identified in the field of bird and bat monitoring. What makes this especially challenging is that the recorded animals can appear as small clusters with an area of just a few pixels. This thesis takes this problem on from an unsupervised point of view, assesses the accuracy of a detection method based on the k-nearest neighbours algorithm, and compares it to existing detection methods. The results helped determine edge-cases in the dataset that significantly deteriorated the tracking accuracy, such as noisy videos and videos with unwanted foreground activity.

• Keywords: analiza toplinskih snimki; monitoring životinja; prepoznavanje anomalija; praćenje objekata; obrada slike
• Keywords (english): thermal video analysis; wildlife monitoring; anomaly detection; tracking; image processing
• Language: croatian
• URN:NBN: urn:nbn:hr:168:812234
• Study programme: Title: Computing; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka računarstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka računarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2024-10-12 22:18:32