Yazar "Güntürk, Bahadır Kürşat" için Bildiri Koleksiyonu listeleme
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Analysis of deep learning based path loss prediction from satellite images
Alam, Muhammad Zeshan; Ateş, Hasan Fehmi; Baykaş, Tunçer; Güntürk, Bahadır Kürşat (Institute of Electrical and Electronics Engineers Inc., 2021)Determining the channel model parameters of a wireless communication system, either by measurements or by running electromagnetic propagation simulations, is a time-consuming process. Any rapid deployment of network demands ... -
Deconvolution based light field extraction from a single image capture
Alam, Muhammad Zeshan; Güntürk, Bahadır Kürşat (IEEE Computer Society, 2018)In this paper, we propose a method to extract light field using a conventional camera from a single image capture. The method involves an offline calibration process, where point spread functions, relating different ... -
Dual camera based high spatio-temporal resolution video generation for wide area surveillance
Suluhan, Hasan Umut; Ateş, Hasan Fehmi; Güntürk, Bahadır Kürşat (Institute of Electrical and Electronics Engineers Inc., 2022)Wide area surveillance (WAS) requires high spatiotemporal resolution (HSTR) video for better precision. As an alternative to expensive WAS systems, low-cost hybrid imaging systems can be used. This paper presents the usage ... -
Dynamic range and depth of field extension using camera array
Alam, Muhammad Zeshan; Güntürk, Bahadır Kürşat (Institute of Electrical and Electronics Engineers Inc., 2022)Computational imaging aims to extend the capabilities of conventional imaging systems by extracting richer and more meaningful information through multiple captures or by modifying the camera’s sensors and optics. In ... -
Frequency division multiplexed imaging: A Texas Instruments DMD implementation
Habibkhani, Houman; Güntürk, Bahadır Kürşat; Feldman, Martin; Batur, Aziz Umut (SPIE-Int Soc Optical Engineering SPIE, 2014)Recently we proposed frequency division multiplexed imaging (FDMI), which allows capturing multiple images in a single shot through spatial modulation and frequency domain filtering. This is achieved by spatially modulating ... -
Geniş alan görüntülerinde anomali tespiti
Şahin, Abdullah Hamza; Ateş, Hasan Fehmi; Güntürk, Bahadır Kürşat (Institute of Electrical and Electronics Engineers Inc., 2021)Bu çalışma hava araçlarından çekilmiş geniş alan görüntülerindeki anomalileri tespit etmek ile ilgilidir. Anomali kümesi normal seyrin dışındaki her şey olarak belirlenmiştir. Bu amaçla iki farklı veri seti kullanılmış ve ... -
Hybrid stereo imaging including a light field and a regular camera
Alam, Muhammad Zeshan; Güntürk, Bahadır Kürşat (Institute of Electrical and Electronics Engineers Inc., 2016)Light field imaging involves capturing both angular and spatial distribution of light; it enables new capabilities, such as post-capture digital refocusing, perspective shift, and depth estimation. Micro-lens array (MLA) ... -
Improved YOLOv4 for aerial object detection
Ali, Sharoze; Siddique, Arslan; Ateş, Hasan Fehmi; Güntürk, Bahadır Kürşat (Institute of Electrical and Electronics Engineers Inc., 2021)Drones equipped with cameras are being used for surveillance purposes. These surveillance systems need vision-based object detection of ground objects which look very small because of the altitude of drones. We propose an ... -
Infrared-to-optical image translation for keypoint-based image registration
Elsaeidy, Mohamed; Erkol, Muhammed Emin; Güntürk, Bahadır Kürşat; Ateş, Hasan Fehmi (Institute of Electrical and Electronics Engineers Inc., 2022)Multi-modal image registration is a critical step in many remote sensing and visual navigation applications. While image registration techniques developed for single modality images do not perform well for multi-modal ... -
Light field registration: A multi-view geometry approach
Mukati, Muhammad Umair; Güntürk, Bahadır Kürşat (Institute of Electrical and Electronics Engineers Inc., 2016)Through capturing spatial and angular radiance distribution, light field cameras bring new capabilities that are not possible with conventional imaging systems. So far in the light field imaging literature, the focus has ... -
Predicting path loss distributions of a wireless communication system for multiple base station altitudes from satellite images
Shoer, İbrahim; Güntürk, Bahadır Kürşat; Ateş, Hasan Fehmi; Baykaş, Tunçer (IEEE Computer Society, 2022)It is expected that unmanned aerial vehicles (UAVs) will play a vital role in future communication systems. Optimum positioning of UAVs, serving as base stations, can be done through extensive field measurements or ray ... -
Space-varying blur kernel estimation and image deblurring
Qian, Qinchun; Güntürk, Bahadır Kürşat (SPIE, 2014)In recent years, we have seen highly successful blind image deblurring algorithms that can even handle large motion blurs. Most of these algorithms assume that the entire image is blurred with a single blur kernel. This ... -
Super-resolution restoration of motion blurred images
Qian, Qinchun; Güntürk, Bahadır Kürşat (SPIE, 2014)In this paper, we investigate super-resolution image restoration from multiple images, which are possibly degraded with large motion blur. The blur kernel for each input image is separately estimated. This is unlike many ...