Results 21 to 30 of about 287,420 (285)

PRELIMINARY STUDY ON WAVELET DENOISING METHOD FOR INVERSION OF SNOW DEPTH IN GNSS-MR [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
GNSS-MR technology inverts snow depth by using low-altitude SNR data. This information contains rich surface information. Due to the complex surface environment, the signal received by the receiver contains noise，during snow depth inversion, it is not ...
F. F. Li, L. L. Liu, L. L. Liu, L. K. Huang, L. K. Huang, W. Zhou, S. Wang, S. Wang   +7 more
doaj   +1 more source

LC-VCO design optimization methodology based on the gm/ID ratio for nanometer CMOS technologies [PDF]

, 2011
In this paper, an LC voltage-controlled oscillator (LC-VCO) design optimization methodology based on the gm/ID technique and on the exploration of all inversion regions of the MOS transistor (MOST) is presented.
Fiorelli, Rafaella, Peralías Macías, Eduardo, Silveira Noguerol, Fernando   +2 more
core   +1 more source

Assessment of Multi-Spectral Imagery and Machine Learning Algorithms for Shallow Water Bathymetry Inversion

Redai dili, 2023
The eastern coastal zone of Hainan Island is an important scenic belt and concentrated area of tourism resources in Hainan Province. Due to natural factors such as sea level rise and human factors such as coastal reclamation, the ecosystem in this area ...
Wang Zhaofan, Ma Zicheng, Xiong Zhongzhao, Sun Tiancheng, Huang Zanhui, Fu Dinghui, Chen Liang, Xie Fei, Xie Cuirong, Chen Si   +9 more
doaj   +1 more source

Depth image based rendering with inverse mapping [PDF]

2013 IEEE 15th International Workshop on Multimedia Signal Processing (MMSP), 2013
Three-dimensional video has gained much attention during the last decade due its vast applications in cinema, television, animation and virtual reality. The design of intermediate view synthesis algorithms that are efficient both in terms of computational complexity and visual quality is a paramount goal in the fields of 3D free view point television ...
Muhammad Shahid Farid, Maurizio Lucenteforte, Marco Grangetto   +2 more
openaire   +2 more sources

Avoiding negative depth in inverse depth bearing-only SLAM [PDF]

2008 IEEE/RSJ International Conference on Intelligent Robots and Systems, 2008
In this paper we consider ways to alleviate negative estimated depth for the inverse depth parameterisation of bearing-only SLAM. This problem, which can arise even if the beacons are far from the platform, can cause catastrophic failure of the filter.We consider three strategies to overcome this difficulty: applying inequality constraints, the use of ...
Martin P. Parsley, Simon J. Julier
openaire   +1 more source

DETECTION AND MODELING OF TEMPERATURE INVERSION IN THE ATMOSPHERE USING MODIS IMAGES (CASE STUDY: KERMANSHAH) [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015
Increase of temperature with height in the troposphere is called temperature inversion. Parameters such as strength and depth are characteristics of temperature inversion.
H. Kachar, M. R. Mobasheri, A. A. Abkar, M. Rahim Zadegan   +3 more
doaj   +1 more source

Binocular Depth Inversion [PDF]

Scientific American, 1981
Binocular Depth Inversion Sometimes a solid object seen with both eyes can seem to reverse perspective. A study of this geometrically irrational experience suggests that ordinary depth perception is somewhat precarious by John A Visitor to the Haunted Mansion at Disneyland in California sees among other things a pair of hu­ man faces that appear to ...
openaire   +3 more sources

Water deep mapping from HJ-1B satellite data by a deep network model in the sea area of Pearl River Estuary, China

Open Geosciences, 2021
Remote sensing (RS) water depth inversion is an important technology and the method of water depth measurement. Taking the waters around the islands outside the Pearl River Estuary as an example, five optical RS depth inversion algorithms were introduced.
Zhao Xiaoning, Wang Daqing, Xu Haoli, Shi Yue, Deng Zhengdong, Ding Zhibin, Liu Zhixin, Xu Xingang, Lu Zhao, Wang Guangyuan, Cheng Zijian   +10 more
doaj   +1 more source

Hughes’s Reverspectives: Radical Uses of Linear Perspective on Non-Coplanar Surfaces

Vision, 2019
Two major uses of linear perspective are in planar paintings—the flat canvas is incongruent with the painted 3-D scene—and in forced perspectives, such as theater stages that are concave truncated pyramids, where the physical geometry and the
Thomas V. Papathomas, Patrick Hughes
doaj   +1 more source

REDUCED BINOCULAR DEPTH INVERSION IN PATIENTS WITH ALCOHOLISM [PDF]

Alcohol and Alcoholism, 1998
Binocular depth inversion represents an illusion of visual perception, serving to invert the perception of implausible hollow objects, e.g. a hollow face into a normal face. Such inversion occurs frequently, especially when objects with a higher degree of familiarity (e.g. photographs of faces) are displayed.
U, Schneider, D E, Dietrich, U, Sternemann, I, Seeland, D, Gielsdorf, T J, Huber, H, Becker, H M, Emrich   +7 more
openaire   +2 more sources