Development of Multi-functional Laser Pointer Mouse through Image Processing

2011 ◽  
pp. 290-298
Author(s):  
Jin Shin ◽  
Sungmin Kim ◽  
Sooyeong Yi
Keyword(s):  
Image Processing ◽  
Laser Pointer

A Study on Bore-Sighting for the Error Reduction of the XK11

2006 ◽  
Vol 326-328 ◽  
pp. 179-182
Author(s):  
Woon Joo Yeo ◽  
Je Wook Chae ◽  
Chan Lee ◽  
Eui Jung Choi ◽  
Jun Ho Lee
Keyword(s):  
Image Processing ◽  
Control System ◽  
Ccd Camera ◽  
Error Reduction ◽  
Processing Method ◽  
Laser Pointer ◽  
Image Processing Method ◽  
Optical Part ◽  
Sighting Method ◽  
Human Eyes

This study is launched to get exact bore-sighting value in the process of assembly for XK11. Image processing method with Charged Coupled Device camera is chosen for the Error reduction of bore-sighting. The results of this method by using a CCD camera and the Testing Target Method are described in this paper. After we confirm the performance of the Dual-Barrel Weapon and that of the Firing Control System in the Dual Barrel Weapon System, the bore-sighting which is a part of the process in the system assembly is accomplished. In this process, the position of the barrel is identified by using the Testing Target Method that is an existing bore-sighting method. Then the fixing line of the Firing Control System is checked by a Day-Optical part. The precision of the boresighting is required within 1 mil, however the manual method using the human eyes makes it worse. Therefore CCD camera is installed in the eyepieces. Next, we can get the image of the sighting and the center coordinate values of the laser-pointer from each barrel by image processing method. Required bore-sighting value is calculated from the eccentricity of the center coordinate. Finally, we will plan to adopt this result in the assembly process of XK11.

scholarly journals Development of Multi-functional Laser Pointer Mouse Through Image Processing

2011 ◽  
Vol 17 (11) ◽  
pp. 1168-1172
Author(s):  
Yeong-Woo Kim ◽  
Sung-Min Kim ◽  
Jin Shin ◽  
Soo-Yeong Yi
Keyword(s):  
Image Processing ◽  
Laser Pointer

A Laser Projection Device for Locating Points on the Plane Object

2012 ◽  
Vol 190-191 ◽  
pp. 1094-1098
Author(s):  
He Ding ◽  
Jian Fei Ouyang ◽  
Xiang Ma ◽  
Yong Gang Yan
Keyword(s):  
Mathematical Model ◽  
Image Processing ◽  
Digital Image Processing ◽  
Rotation Angle ◽  
Control Unit ◽  
Stepper Motor ◽  
Two Dimensional ◽  
Laser Pointer ◽  
Projection Device ◽  
The Mathematical Model

Digital image processing technology can extract the main feature of an image. In order to achieve the interaction between virtual points and plane objects, we propose the equipment for indicating points on the plane object using laser projection. We designed the equipment with a bracket, stepper motor, two-dimensional turntable, PC control unit, and a laser pointer. Next, we analyzed the mathematical model of the equipment and developed an algorithm for solving the motor rotation angle. Finally, we verified our design with an image. Here, we develop a system that can control a laser projection to a specified location by adjusting coordinates of virtual points on a computer.

scholarly journals Monitoring of Structures by a Laser Pointer. Dynamic Measurement of Rotations and Displacements of the Elastic Line of a Bridge: Methodology and First Test

2017 ◽  
Author(s):  
Serena Artese ◽  
Vladimiro Achilli ◽  
Raffaele Zinno
Keyword(s):  
Image Processing ◽  
Dynamic Monitoring ◽  
Displacement Monitoring ◽  
Laser Pointer ◽  
Elastic Line ◽  
Technical Parameters ◽  
Vertical Displacements ◽  
Load Tests ◽  
Heavy Truck ◽  
Line Inclination

Deck inclination and vertical displacements are among the most important technical parameters to evaluate the health status of a bridge and to verify its bearing capacity. Several methods, both conventional and innovative, are used for structural rotations and displacement monitoring; no one of these does allow, at the same time, precision, automation, static and dynamic monitoring without using high cost instrumentation. The proposed system uses a common laser pointer and image processing. The elastic line inclination is measured by analyzing the single frames of a HD video of the laser beam imprint projected on a flat target. For the image processing, a code was developed in Matlab® that provides instantaneous rotation and displacement of a bridge, charged by a mobile load. An important feature is the synchronization of the load positioning, obtained by a GNSS receiver or by a video. After the calibration procedures, a test was carried out during the movements of a heavy truck maneuvering on a bridge. Data acquisition synchronization allowed to relate the position of the truck on the deck to inclination and displacements. The inclination of elastic line was obtained with a precision of 0.01 mrad. The results demonstrate the suitability of the method for dynamic load tests, control and monitoring of bridges.

Laser-Pointer Rangefinder between Mobile Robot and Obstacles via Webcam Based

2010 ◽  
Vol 447-448 ◽  
pp. 609-613 ◽  
Author(s):  
Shahed Shojaeipour ◽  
Behrang Parhizkar ◽  
Amirhossein Hosseinmemar ◽  
Ali Shojaeipour ◽  
Hamed Esfandiari ◽  
...  
Keyword(s):  
Image Processing ◽  
Mobile Robot ◽  
Target Location ◽  
Laser Pointer ◽  
The Way

In this paper, we present a method to measurement a distance using a laser-pointer. This method calculated the distance from obstacles for the robot to transverse to its target location, while avoiding obstacles along the way. The environment is first captured as an image using a webcam. Image processing are then calculate to identify the existence of obstacles within the environment. Using the laser-pointer, ditance locations with obstacles are identified which laser-pointer consist of the webcam and the laser-pointer. It measure the distace mobile robot to the obstacles is identified. The program is written in MATLAB with the Image processing toolbox.

Some comments about observations and image processing of comet 29P/Schwassmann-Wachmann 1

1999 ◽  
Vol 173 ◽  
pp. 243-248
Author(s):  
D. Kubáček ◽  
A. Galád ◽  
A. Pravda
Keyword(s):  
Image Processing ◽  
Large Scale ◽  
Harvard College ◽  
Oak Ridge ◽  
Large Scale Structures ◽  
Short Period Comet ◽  
Short Period ◽  
Scale Structures ◽  
Harvard College Observatory ◽  
Period Comet

AbstractUnusual short-period comet 29P/Schwassmann-Wachmann 1 inspired many observers to explain its unpredictable outbursts. In this paper large scale structures and features from the inner part of the coma in time periods around outbursts are studied. CCD images were taken at Whipple Observatory, Mt. Hopkins, in 1989 and at Astronomical Observatory, Modra, from 1995 to 1998. Photographic plates of the comet were taken at Harvard College Observatory, Oak Ridge, from 1974 to 1982. The latter were digitized at first to apply the same techniques of image processing for optimizing the visibility of features in the coma during outbursts. Outbursts and coma structures show various shapes.

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