Camera Sabotage Discovery for Video Surveillance Applications

Download
2007-06-13
Aksay, Anil
Temizel, Alptekin
ÇETİN, AHMET ENİS
Son yıllarda video gözetim uygulamaları için kullanılan kamera sayılarında kayda değer artış olmuştur. Bu kameraların amaçlandığı gibi çalışıyor olması anlamlı bilgi yakalaması önemlidir. Suç işleyecek kişiler kamera önünü kapatarak, boya püskürterek ya da kamera odağını bozarak görüntülerinin ve eylemlerinin kaydedilmesini engellemek yoluna başvurmaktadır. Kameraları gözleyen birisinin olmaması ya da dikkatinin dağınık olması sabotajın fark edilememesine neden olur ve sistem normal olarak çalışıyor ve kaydediyor olsa bile kayıtların kullanılamaz olmasına yolaçar. Bu bildiride, dalgacık alanında arkaplan çıkarımı yöntemi kullanılarak kamerada görüş azalması ve kamera önünün kapatılması durumlarının gerçek zamanlı kestirimi önerilmektedir. Ayrıca, sistemin gerçek hayat koşullarında daha güvenilir çalışması için bazı yöntemler de önerilmiştir.

Suggestions

IMAGE-BASED OCCUPANCY SENSING AND PRIVACY IMPLICATIONS
Haroon, Hammad; Pekeriçli, Mehmet Koray; Department of Building Science in Architecture (2022-7-07)
As the use of data collection in the built environment increased, data pertaining to building occupancy has gained considerable importance in realms such as energy optimization and spatial usage analytics. However, many data collection approaches infringe on individuals’ rights to privacy, and subsequently their comfort. This thesis aims to address the tension between the proliferation of smart building technologies and individual privacy and autonomy, specifically focusing on image-based sensing. It explor...
Human presence detection in emergency situations using deep learning based audio-visual systems
Geneci, İzlen; Günel Kılıç, Banu; Bozşahin, Hüseyin Cem; Department of Cognitive Sciences (2022-8-24)
The significance of emergency event detection in surveillance systems has drawn the attention of researchers in recent years. Existing methods mostly depend on visual data to identify any abnormal events since only visual sensors are frequently put in public settings. On the other hand, in an emergency, sound information may be exploited. When eyesight is occluded, audio waves can penetrate to some extent. Applications for visual analysis may be helpful when there is noise in the audio and the scene is cong...
VIEWING EMERGENCY REMOTE TEACHING WITHIN THE ―SEVEN PRINCIPLES FOR GOOD PRACTICE‖ FRAMEWORK: VOICES FROM PREPARATORY SCHOOL EFL INSTRUCTORS
Gün, Berna; Gündüz, Müge; Department of English Language Teaching (2022-8-12)
Due to the sudden change from traditional education to online education, the need for investigating the online teaching practices of EFL instructors became an imperative. Studies revealed that most EFL instructors lacked sufficient training, technological and pedagogical knowledge and faced some difficulties. This mixed-methods study aimed to explore online teaching experiences and perceptions of the EFL instructors working at preparatory schools of three state universities within the "Seven Principles for ...
Balanced Path Generation and Reliability Extension for In-band Network Telemetry
ŞİMŞEK, GÖKSEL; Onur, Ertan; Alemdar, Hande; Department of Computer Engineering (2021-5)
Network monitoring is one of the key aspects to ensure communication reliability in case of failures and malicious activities and has several design issues depending on the system characteristics. As traditional monitoring solutions usually rely on periodic updates between the network controller and ordinary nodes, scalability re- mains a challenge, especially for large-scale systems. A recent solution, the In-Band Network Telemetry (INT) framework, allows data packets to probe the nodes while traversing th...
Two-mode probabilistic distance clustering
Caner, Yağmur; İyigün, Cem; Department of Industrial Engineering (2021-7-29)
Probabilistic Distance Clustering (PDC) is a soft clustering technique constructed around some axioms. It is a center-based approach and assigns each data point to multiple clusters with a membership probability. The PDC is applicable for one-mode data sets, where each data points’ quantitative or qualitative values over each feature are stored. This study focuses on PDC and consists of two main contributions. Firstly, the relevance of PDC to some other probabilistic models in the literature is examined. We...
Citation Formats
A. Aksay, A. Temizel, and A. E. ÇETİN, “Camera Sabotage Discovery for Video Surveillance Applications,” 2007, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/30116.