Results 21 to 30 of about 292,962 (302)

KIC 8462852 - The Infrared Flux [PDF]

, 2015
We analyzed the warm Spitzer/IRAC data of KIC 8462852. We found no evidence of infrared excess at 3.6 micron and a small excess of 0.43 +/- 0.18 mJy at 4.5 micron, below the 3 sigma threshold necessary to claim a detection.
Hulsebus, Alan, Marengo, Massimo, Willis, Sarah   +2 more
core   +2 more sources

Facet-based infrared small target detection method

Electronics Letters, 2005
The cubic facet model is applied to fit the underlying intensity surface in infrared small target detective procedure. Using the partial derivatives of the fitted surface to make decisions regarding the maximum extremum points is proposed. The experimental results demonstrate that the proposed method is efficient and robust.
G.-D. Wang, Ch.-Y. Chen, X.-B. Shen
openaire   +1 more source

IRSDT: A Framework for Infrared Small Target Tracking with Enhanced Detection

Sensors, 2023
Currently, infrared small target detection and tracking under complex backgrounds remains challenging because of the low resolution of infrared images and the lack of shape and texture features in these small targets.
Jun Fan, Jingbiao Wei, Hai Huang, Dafeng Zhang, Ce Chen   +4 more
doaj   +1 more source

Detection Algorithm for Infrared Dim Small Targets Based on Weighted Fusion Feature and Ostu Segmentation [PDF]

Jisuanji gongcheng, 2017
In order to improve the detection accuracy and efficiency of infrared dim small target under complex background interference and low signal to noise ratio,a fast detection algorithm for infrared dim small targets based on local weighted fusion feature ...
LIU Kun,LIU Weidong
doaj   +1 more source

The SCUBA Bright Quasar Survey (SBQS): 850micron observations of the z>4 sample [PDF]

, 2001
We present initial results of a new, systematic search for massive star-formation in the host galaxies of the most luminous and probably most massive z>=4 radio-quiet quasars (M(B) 10^13Lsun).
Abraham, Alain Omont, Archibald, Barger, Barger, Barlow, Barvainis, Becker, Brown, Celine Peroux, Clements, Condon, Downes, Duncan, Dunlop, Eales, Elvis, Fan, Fan, Fan, Francis, Frayer, Frayer, Friaça, Fukugita, Gebhardt, Genzel, Guilloteau, Haehnelt, Hildebrand, Holland, Hughes, Hughes, Irwin, Isaak, Ivison, Kate G. Isaak, Kauffmann, Kennefick, Kennefick, Knudsen, Kochanek, Kreysa, Madau, Madau, Magorrian, McMahon, McMahon, McMahon, Ohta, Omont, Omont, Omont, Peroux, Priddey, Rees, Richard G. McMahon, Rix, Robert G. Sharp, Robert S. Priddey, Sakamoto, Sanders, Schneider, Schneider, Smail, Solomon, Stafford Withington, Stern, Storrie-Lombardi, Storrie-Lombardi, Turner, Tytler, Wright   +72 more
core   +5 more sources

Thermal Infrared Imaging Experiments of C-Type Asteroid 162173 Ryugu on Hayabusa2 [PDF]

, 2016
The thermal infrared imager TIR onboard Hayabusa2 has been developed to investigate thermo-physical properties of C-type, near-Earth asteroid 162173 Ryugu.
A. Fujiwara, Axel Hagermann, D.A. Paige, F. Vilas, G.J. Consolmagno, H. Hiesinger, H. Hihara, H. Yano, H.H. Kieffer, H.H. Kieffer, Hirohide Demura, Hiroki Senshu, J. Biele, J. Helbert, J. Veverka, Jun Takita, Jörn Helbert, Ken Endo, Kohei Kitazato, M. Delbo, M. Grott, M. Ishiguro, M.P. Golombek, Makoto Taguchi, Naoya Sakatani, O. Groussin, P. Michel, P.R. Christensen, P.R. Christensen, Ryosuke Nakamura, S. Tachibana, S.C. Chase, Satoshi Tanaka, Sunao Hasegawa, T. Fukuhara, T. Okada, T. Okada, T. Spohn, T.-M. Ho, T.G. Müller, Takehiko Arai, Takehiko Wada, Takeshi Imamura, Tatsuaki Okada, Tetsuya Fukuhara, Thomas G. Müller, Tomohiko Sekiguchi, Toru Kouyama, Tsuneo Matsunaga, W.F. Bottke Jr., Y. Tsuda, Yamato Horikawa, Yoshiko Ogawa   +52 more
core   +2 more sources

Hardware-Accelerated Infrared Small Target Recognition Based on Energy-Weighted Local Uncertainty Measure

Applied Sciences
Infrared small target detection is a key technology with a wide range of applications, and the complex background and low signal-to-noise ratio characteristics of infrared images can greatly increase the difficulty and error rate of small target ...
Xiaoqing Wang, Zhantao Zhang, Yujie Jiang, Kuanhao Liu, Yafei Li, Xuri Yao, Zixu Huang, Wei Zheng, Jingqi Zhang, Fu Zheng   +9 more
doaj   +1 more source

Adjacent Infrared Multitarget Detection Using Robust Background Estimation [PDF]

Small target detection is very important for infrared search and track (IRST) problems. Grouped targets are difficult to detect using the conventional constant false alarm rate (CFAR) detection method.
Kim, Kyung-Tae, Kim, Sungho
core   +1 more source

Target Driven Adaptive Loss for Infrared Small Target Detection

2025 IEEE International Conference on Image Processing (ICIP)
We propose a target driven adaptive (TDA) loss to enhance the performance of infrared small target detection (IRSTD). Prior works have used loss functions, such as binary cross-entropy loss and IoU loss, to train segmentation models for IRSTD. Minimizing these loss functions guides models to extract pixel-level features or global image context. However,
Shoji, Yuho, Toizumi, Takahiro, Ito, Atsushi   +2 more
openaire   +2 more sources

Near-infrared Linear Polarization of Ultracool Dwarfs

, 2011
We report on near-infrared J- and H-band linear polarimetric photometry of eight ultracool dwarfs (two late-M, five L0-L7.5, and one T2.5) with known evidence for photometric variability due to dust clouds, anomalous red infrared colors, or low-gravity ...
A. Manchado, Allers, Allers, Alves, Ardila, Artigau, Artigau, B. Goldman, Basri, Bernat, Blake, Burgasser, Burrows, Chabrier, Cieza, Cruz, Fazio, Gelino, Gizis, Golimowski, Gorlova, Hashimoto, Herczeg, J. A. Acosta-Pulido, J. A. Caballero, Jayawardhana, Jayawardhana, K. Peña Ramírez, Kandori, Kirkpatrick, Kirkpatrick, Knapp, Kraus, Kusakabe, Leggett, Luhman, Luhman, M. R. Zapatero Osorio, Marley, Martín, McGovern, McLean, McLean, Mohanty, Mohanty, Morales-Calderón, Muzerolle, Patten, R. Rebolo, Reiners, Reiners, Rieke, Schmidt, Scholz, Sengupta, Sengupta, Sengupta, Simmons, Skrutskie, Stauffer, V. J. S. Béjar, Wright, Wright, Zapatero Osorio, Zapatero Osorio, Zapatero Osorio   +65 more
core   +1 more source