Object detection under moving cloud shadows in WAMI

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 Detection for Autonomous Driving: High-Dynamic Range vs. Low-Dynamic Range Images Kocdemir, Ismail H.; Akyüz, Ahmet Oğuz; Koz, Alper; Chalmers, Alan; Alatan, Abdullah Aydın; Kalkan, Sinan (2022-01-01) An important problem in autonomous driving is to perceive objects even under challenging illumination conditions. Despite this problem, existing solutions use low-dynamic range (LDR) images for object detection for autonomous driving. In this paper, we provide a novel analysis on whether high-dynamic range (HDR) images can provide better performance for object detection for autonomous driving. To this end, we choose a seminal deep object detector and systematically evaluate its performance when trained with...
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...
OBJECT RECOGNITION AND LOCALIZATION WITH ULTRASONIC-SCANNING 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 ...

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.