Object detection under moving cloud shadows in WAMI

Alatan, Abdullah Aydın


Object detection from registered visual and infrared sequences with the help of active contours
Yürük, Hüseyin; Ulusoy, İlkay; Department of Electrical and Electronics Engineering (2008)
Robust object detection from registered infrared and visible image streams is proposed for outdoor surveillance. In doing this, halo effect in infrared images is used as a benefit to extract object boundary by fitting active contour models (snake) to the foreground regions where these regions are detected by using the useful information from both visual and infrared domains together. Synchronization and registration are performed for each infrared and visible image couple. Various background modeling method...
Object tracking with range gated camera system
Yağcıoğlu, Mustafa; Temizel, Alptekin; Yelen, Kuthan; Department of Information Systems (2015)
Imaging systems can be categorized as active or passive. Passive systems act only as a receiver and do not send any energy to their environment. Frequently used night vision systems such as thermal imagers and image intensifier systems are examples of passive systems. Active imaging systems on the other hand, send energy to their environment and detect the reflected energy from the objects. While passive systems require some ambient light or object radiation, active imaging systems can work without any exte...
Object detection through search with a foveated visual system
Akbaş, Emre (2017-10-01)
Humans and many other species sense visual information with varying spatial resolution across the visual field (foveated vision) and deploy eye movements to actively sample regions of interests in scenes. The advantage of such varying resolution architecture is a reduced computational, hence metabolic cost. But what are the performance costs of such processing strategy relative to a scheme that processes the visual field at high spatial resolution? Here we first focus on visual search and combine object det...
KIRAGI, H; Ersak, Aydın (1994-04-14)
In this paper an object recognition and localization system based on ultrasonic range imaging to be used in optically opaque environments is introduced. The system is especially designed for robotics applications. The ultrasonic image is acquired by scanning ultrasonic transducers in two dimensions above the area where objects are located. The features that are used for recognition and localization processes are extracted from the outermost boundaries of the objects present in the input scene. Experimental ...
Object tracking for surveillance applications using thermal and visible band video data fusion
Beyan, Çiğdem; Temizel, Alptekin; Department of Information Systems (2010)
Individual tracking of objects in the video such as people and the luggages they carry is important for surveillance applications as it would enable deduction of higher level information and timely detection of potential threats. However, this is a challenging problem and many studies in the literature track people and the belongings as a single object. In this thesis, we propose using thermal band video data in addition to the visible band video data for tracking people and their belongings separately for ...
Citation Formats
P. HATİPOĞLU, T. ALBAYRAK, and A. A. Alatan, “Object detection under moving cloud shadows in WAMI,” 2020, vol. 22020, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/69935.