Nonlinear research of an image motion stabilization system embedded in a space land-survey telescope

2017 ◽  
Author(s):  
Yevgeny Somov ◽  
Sergey Butyrin ◽  
Houria Siguerdidjane
Keyword(s):  
Image Motion ◽  
Stabilization System ◽  
Land Survey ◽  
Motion Stabilization

Robust Feature Points Extraction Based on Harris and SIFT

2013 ◽  
Vol 347-350 ◽  
pp. 3500-3504
Author(s):  
Xiao Ran Guo ◽  
Shao Hui Cui ◽  
Fang Dan
Keyword(s):  
Video Sequence ◽  
State Of The Art ◽  
Image Motion ◽  
Video Sequences ◽  
Stabilization System ◽  
Feature Points ◽  
Image Stabilization ◽  
Current State ◽  
Novel Approach ◽  
Key Points

This article presents a novel approach to extract robust local feature points of video sequence in digital image stabilization system. Robust Harris-SIFT detector is proposed to select the most stable SIFT key points in the video sequence where image motion is happened due to vehicle or platform vibration. Experimental results show that the proposed scheme is robust to various transformations of video sequences, such as translation, rotation and scaling, as well as blurring. Compared with the current state-of-the-art schemes, the proposed scheme yields better performances.

scholarly journals Multiloop Multirate Continuous‐Discrete Drone Stabilization System: An Equivalent Single‐Rate Model

Drones ◽  
2021 ◽  
Vol 5 (4) ◽  
pp. 129
Author(s):  
Vadim Kramar ◽  
Aleksey Kabanov ◽  
Vasiliy Alchakov
Keyword(s):  
Discrete System ◽  
Rational Functions ◽  
Discrete Systems ◽  
Lateral Motion ◽  
Stabilization System ◽  
Rate Model ◽  
Common Multiple ◽  
Structural Invariant ◽  
Equivalent Models ◽  
Motion Stabilization

The article discusses the UAV lateral motion stabilization system, as a MIMO multiloop multirate continuous-discrete system, specified in the form of an input–output model in the domain of discrete Laplace transform or in the form of a structural diagram. Approaches to the construction of equivalent T and NT single-rate models for MIMO multiloop multirate continuous-discrete systems are considered. Here, T is the largest common divisor of the sampling periods of the system, N is a natural number that is the smallest common multiple of the numbers characterizing the sampling periods of the system. The resulting impulse representations of the outputs of equivalent models are in the form of rational functions. The basis for the construction of these models is a matrix of sampling densities—a structural invariant of sampling chains. An example of the construction of the indicated matrix and an equivalent single-rate model are given. Obtaining equivalent single-rate models for MIMO multiloop multirate systems allows us to extend the methods of research and synthesis of MIMO continuous and continuous-discrete systems to a common theoretical base—the theory of polynomials and rational functions, which are typical elements of the description of these classes of systems.

221 Vehicle Motion Stabilization System Utilizing Dynamic 3-Directional Forces between Road and 4 Wheels

2004 ◽  
Vol 2004 (0) ◽  
pp. _221-1_-_221-6_
Author(s):  
Hiroki Takeda ◽  
Katsumsa Fujita ◽  
Nagao Miyazaki ◽  
Syu Ueno
Keyword(s):  
Stabilization System ◽  
Vehicle Motion ◽  
Motion Stabilization

An Interactive U.S. Land Survey Exercise

1996 ◽  
Vol 95 (1) ◽  
pp. 22-26
Author(s):  
Philip R. Pryde
Keyword(s):  
Land Survey
Sign in / Sign up

Export Citation Format

Share Document