PRESENT STATE OF EXPERIMENTAL RESULTS OF DIRECT REACTIONS WITH EMPHASIS ON NUCLEAR STRUCTURE INFORMATION

1976 ◽  
Vol 37 (C5) ◽  
pp. C5-1-C5-13 ◽  
Author(s):  
O. Hansen ◽  
J. D. Garrett
Keyword(s):  
Nuclear Structure ◽  
Present State ◽  
Experimental Results ◽  
Structure Information ◽  
Direct Reactions

Estimated path information gain-based robot exploration under perceptual uncertainty

Robotica ◽  
2022 ◽  
pp. 1-17
Author(s):  
Jie Liu ◽  
Chaoqun Wang ◽  
Wenzheng Chi ◽  
Guodong Chen ◽  
Lining Sun
Keyword(s):  
Decision Making ◽  
Topological Structure ◽  
Information Gain ◽  
State Of The Art ◽  
Selection Process ◽  
Random Trees ◽  
Experimental Results ◽  
Restricted Area ◽  
Structure Information ◽  
Path Information

Abstract At present, the frontier-based exploration has been one of the mainstream methods in autonomous robot exploration. Among the frontier-based algorithms, the method of searching frontiers based on rapidly exploring random trees consumes less computing resources with higher efficiency and performs well in full-perceptual scenarios. However, in the partially perceptual cases, namely when the environmental structure is beyond the perception range of robot sensors, the robot often lingers in a restricted area, and the exploration efficiency is reduced. In this article, we propose a decision-making method for robot exploration by integrating the estimated path information gain and the frontier information. The proposed method includes the topological structure information of the environment on the path to the candidate frontier in the frontier selection process, guiding the robot to select a frontier with rich environmental information to reduce perceptual uncertainty. Experiments are carried out in different environments with the state-of-the-art RRT-exploration method as a reference. Experimental results show that with the proposed strategy, the efficiency of robot exploration has been improved obviously.

scholarly journals A New Error Concealment Algorithm Based on Directional Texture Synthesis

2012 ◽  
Vol 6-7 ◽  
pp. 309-314
Author(s):  
Jiang Xin Zhang ◽  
Jin Xie
Keyword(s):  
Image Reconstruction ◽  
Confidence Level ◽  
Error Concealment ◽  
Texture Synthesis ◽  
Experimental Results ◽  
Interpolation Algorithm ◽  
Structure Information ◽  
Video Images ◽  
Directional Texture

In this paper, we propose a novel directional texture synthesis based error concealment algorithm to recover damaged video images. It uses the confidence level and structure information to calculate the priority of patch, which contributes to improve the ability to select the best matching block when the damaged area is very large. The JM86 model of H.264 standard is used to evaluate the algorithm. And experimental results show that our algorithm achieved a better image reconstruction results than the improved Multi-directional texture interpolation algorithm, with 1.2 to 1.4dB gain in PSNR and 0.5 percent to 1 percent gain in SSIM.

Nuclear Structure Information from 208Pb(p, p') via Isobaric Analog Resonances in 209Bi

2008 ◽  
Author(s):  
A. HEUSLER ◽  
P. VON BRENTANO ◽  
T. FAESTERMANN ◽  
G. GRAW ◽  
R. HERTENBERGER ◽  
...  
Keyword(s):  
Nuclear Structure ◽  
Structure Information ◽  
Isobaric Analog

scholarly journals Pose Estimation of Uncooperative Unknown Space Objects from a Single Image

2020 ◽  
Vol 2020 ◽  
pp. 1-9
Author(s):  
Xiaoyuan Ren ◽  
Libing Jiang ◽  
Zhuang Wang
Keyword(s):  
Pose Estimation ◽  
Experimental Results ◽  
Single Image ◽  
Space Object ◽  
Shape Model ◽  
Structure Information ◽  
Space Objects ◽  
Specific Object ◽  
Unknown Objects ◽  
Unknown Object

Estimating the 3D pose of the space object from a single image is an important but challenging work. Most of the existing methods estimate the 3D pose of known space objects and assume that the detailed geometry of a specific object is known. These methods are not available for unknown objects without the known geometry of the object. In contrast to previous works, this paper devotes to estimate the 3D pose of the unknown space object from a single image. Our method estimates not only the pose but also the shape of the unknown object from a single image. In this paper, a hierarchical shape model is proposed to represent the prior structure information of typical space objects. On this basis, the parameters of the pose and shape are estimated simultaneously for unknown space objects. Experimental results demonstrate the effectiveness of our method to estimate the 3D pose and infer the geometry of unknown typical space objects from a single image. Moreover, experimental results show the advantage of our approach over the methods relying on the known geometry of the object.

Nuclear structure information from high-energy (p, 2p) experiments

1972 ◽  
Vol 187 (2) ◽  
pp. 314-322 ◽  
Author(s):  
L.R.B. Elton ◽  
O. Sundberg
Keyword(s):  
Nuclear Structure ◽  
High Energy ◽  
Structure Information

scholarly journals Nuclear structure information obtained from charge radii

1985 ◽  
Vol 164 (4-6) ◽  
pp. 241-244 ◽  
Author(s):  
C.E. Alonso ◽  
J.M. Arias ◽  
F. Iachello
Keyword(s):  
Nuclear Structure ◽  
Structure Information ◽  
Charge Radii

Video Caption Extraction Using Spatio-Temporal Slices

2018 ◽  
Vol 18 (02) ◽  
pp. 1850009 ◽  
Author(s):  
Liang-Hua Chen ◽  
Chih-Wen Su
Keyword(s):  
Video Indexing ◽  
Experimental Results ◽  
Bar Code ◽  
Structure Information ◽  
Indexing And Retrieval ◽  
Scan Line ◽  
Video Indexing And Retrieval ◽  
Spatio Temporal ◽  
Novel Algorithm

Captions in videos play an important role for video indexing and retrieval. In this paper, we propose a novel algorithm to extract multilingual captions from video. Our approach is based on the analysis of spatio-temporal slices of video. If the horizontal (or vertical) scan line contains some pixels of caption region then the corresponding spatio-temporal slice will have bar-code like patterns. By integrating the structure information of bar-code like patterns in horizontal and vertical slices, the spatial and temporal positions of video captions can be located accurately. Experimental results show that the proposed algorithm is effective and outperforms some existing techniques.

Single proton states in odd holmium isotopes

1977 ◽  
Vol 55 (19) ◽  
pp. 1657-1686 ◽  
Author(s):  
J. D. Panar ◽  
O. Straume ◽  
D. G. Burke
Keyword(s):  
Nuclear Structure ◽  
Cross Sections ◽  
Gamma Ray ◽  
Reaction Products ◽  
Excitation Energies ◽  
Light Reaction ◽  
Structure Information ◽  
Structure Factors ◽  
Nilsson Model ◽  
Photographic Emulsions

The (3He,d) and (α,t) reactions have been used to study odd proton states in 157,159,161,163Ho. The beams were provided by tandem Van de Graaff accelerators and the light reaction products were analyzed with magnetic spectrographs and detected with photographic emulsions. Spectra were studied up to excitation energies of ~1.5 MeV for each nuclide with resolutions (FWHM) of ~14 keV for the (3He,d) reaction and ~12 keV for the (α,t) reaction. Information on the l-values was obtained from the ratios of (3He,d) and (α,t) cross sections and from (3He,d) angular distributions. The results are interpreted in terms of the Nilsson model with pairing and Coriolis mixing included. Nuclear structure factors were extracted from the experimental data with the aid of DWBA calculations. Nilsson assignments from previous gamma-ray studies have been confirmed for many low-lying rotational bands. In addition, many new assignments have been made, particularly in the lighter isotopes for which very little nuclear structure information existed previously. A relatively strong l = 0 transition is found in each nuclide and arguments are made to suggest these Iπ = 1/2+ states are gamma vibrations based on the 5/2+[402] states. Similarly, strong l = 2 transitions populate states which may be Iπ = 3/2+ gamma vibrations based on the 7/2+[404] orbitals. Some interesting systematics of the behaviour of single particle states in this region are presented and some anomalies in the populations of the 1/2+[411] and 3/2+[411] states are pointed out.

Nuclear Structure Information from the (p, t) Reaction,A=46toA=70

1964 ◽  
Vol 136 (4B) ◽  
pp. B1006-B1022 ◽  
Author(s):  
G. Bassani ◽  
Norton M. Hintz ◽  
C. D. Kavaloski
Keyword(s):  
Nuclear Structure ◽  
Structure Information
Sign in / Sign up

Export Citation Format

Share Document