scholarly journals Investigation of Plasma Activated Si-Si Bonded Interface by Infrared Image Based on Combination of Spatial Domain and Morphology

Micromachines ◽  
2019 ◽  
Vol 10 (7) ◽  
pp. 445
Author(s):  
Mao Du ◽  
Dongling Li ◽  
Yufei Liu
Keyword(s):  
Infrared Imaging ◽  
Imaging System ◽  
Orthogonal Experiment ◽  
Infrared Image ◽  
Spatial Domain ◽  
Bonded Interface ◽  
Disk Size ◽  
Wafer Direct Bonding ◽  
Binarization Threshold ◽  
Bonding Rate

This paper presents a detection method for characterizing the bonded interface of O2 plasma activated silicon wafer direct bonding. The images, obtained by infrared imaging system, were analyzed by the software based on spatial domain and morphology methods. The spatial domain processing methods, including median filtering and Laplace operator, were applied to achieve de-noising and contrast enhancement. With optimized parameters of sharpening operator patterns, disk size, binarization threshold, morphological parameter A and B, the void contours were clear and convenient for segmentation, and the bonding rate was accurately calculated. Furthermore, the void characteristics with different sizes and distributions were also analyzed, and the detailed statistics of the void’s number and size are given. Moreover, the orthogonal experiment was designed and analyzed, indicating that O2 flow has the greatest influence on the bonding rate in comparison with activated time and power. With the optimized process parameters of activated power of 150 W, O2 flow of 100 sccm and time of 120 s, the testing results show that the bonding rate can reach 94.51% and the bonding strength is 12.32 MPa.

Method for Uncooled Infrared Image Processing

2013 ◽  
Vol 427-429 ◽  
pp. 1948-1951
Author(s):  
Jia Lin Ma ◽  
Xia Zhang
Keyword(s):  
Image Processing ◽  
Infrared Imaging ◽  
Imaging System ◽  
Infrared Detector ◽  
Infrared Image ◽  
National Defense ◽  
Histogram Modification ◽  
Infrared Image Processing ◽  
Manufacturing Techniques ◽  
Uncooled Infrared Imaging

Uncooled infrared imaging system has been increasingly applied in both the national defense and various fields of national economy. Such popularity is attributed to many of its advantages, including small size, light weight, low energy-consumption and superior portability. However, as limited by the structure and the material of infrared detector and the manufacturing techniques, infrared images are plagued with low resolution and poor image quality. This paper mainly studies the uncooled infrared image processing based on the gray levels partition processing, gray levels stretching and histogram modification, it aims to enhance the visual effect of infrared image.

Large-scale scene real-time infrared simulation based on texture blending

2016 ◽  
Vol 9 (4) ◽  
pp. 406-415
Author(s):  
Yuye Wang ◽  
Guofeng Zhang ◽  
Xiaoguang Hu
Keyword(s):  
Large Scale ◽  
Infrared Imaging ◽  
Imaging System ◽  
Infrared Image ◽  
Frame Rate ◽  
Theoretical Research ◽  
Content Type ◽  
High Frame Rate ◽  
Specific Target ◽  
Infrared Imaging System

Purpose Infrared simulation plays an important role in small and affordable unmanned aerial vehicles. Its key and main goal is to get the infrared image of a specific target. Infrared physical model is established through a theoretical research, thus the temperature field is available. Then infrared image of a specific target can be simulated properly while taking atmosphere state and effect of infrared imaging system into account. For recent years, some research has been done in this field. Among them, the infrared simulation for large scale is still a key problem to be solved. In this passage, a method of classification based on texture blending is proposed and this method effectively solves the problem of classification of large number of images and increase the frame rate of large infrared scene rendering. The paper aims to discuss these issues. Design/methodology/approach Mosart Atmospheric Tool (MAT) is used first to calculate data of sun radiance, skyshine radiance, path radiance, temperatures of different material which is an offline process. Then, shader in OGRE does final calculation to get simulation result and keeps a high frame rate. Considering this, the authors convert data in MAT file into textures which can be easily handled by shader. In shader responding, radiance can be indexed by information of material, vertex normal, eye and sun. Adding the effect of infrared imaging system, the final radiance distribution is obtained. At last, the authors get infrared scene by converting radiance to grayscale. Findings In the fragment shader, fake infrared textures are used to look up temperature which can calculate radiance of itself and related radiance. Research limitations/implications The radiance is transferred into grayscale image while considering effect of infrared imaging system. Originality/value Simulation results show that a high frame rate can be reached while guaranteeing the fidelity.

Infrared Imaging: Performance And Applications Of An Ft-Ir Microscope Based Imaging System

1999 ◽  
Vol 5 (S2) ◽  
pp. 70-71
Author(s):  
N. A. Wright ◽  
P. S. Bhandare ◽  
E. Y. Jiang
Keyword(s):  
Spatial Resolution ◽  
Infrared Imaging ◽  
Imaging System ◽  
Infrared Image ◽  
Array Detector ◽  
Mapping Experiment ◽  
Acquisition Speed ◽  
Infrared Spectrometer ◽  
Ft Ir ◽  
Imaging Performance

The field of infrared imaging for analytical chemical analysis has developed over the last few years into a technique that has clearly demonstrated its utility in a variety of applications(l-6). This imaging system is based upon the coupling of an infrared array detector to an infrared spectrometer and microscope, where the use of an array detector allows both spatial and spectral information to be generated simultaneously. Because of the high spatial content and data acquisition speed, researchers have been able to apply this technique to samples and experiments where traditional infrared microscopy has not proven successful.Previously, in order to obtain an infrared image, the researcher was required to undertake a step and collect mapping experiment. In the mapping experiment, an aperture is set to obtain the desired spatial resolution at the sample. If high spatial resolution is required, most of the energy is discarded and long data collection times are needed to obtain a reasonable signal-to-noise

scholarly journals Portable robot for autonomous venipuncture using 3D near infrared image guidance

TECHNOLOGY ◽  
2013 ◽  
Vol 01 (01) ◽  
pp. 72-87 ◽  
Author(s):  
Alvin Chen ◽  
Kevin Nikitczuk ◽  
Jason Nikitczuk ◽  
Tim Maguire ◽  
Martin Yarmush
Keyword(s):  
Near Infrared ◽  
Infrared Imaging ◽  
Imaging System ◽  
Infrared Image ◽  
Training Model ◽  
Medical Injury ◽  
Wide Range ◽  
Spatial Coordinates ◽  
Imaging Performance ◽  
Rate Of Success

Venipuncture is pivotal to a wide range of clinical interventions and is consequently the leading cause of medical injury in the U.S. Complications associated with venipuncture are exacerbated in difficult settings, where the rate of success depends heavily on the patient's physiology and the practitioner's experience. In this paper, we describe a device that improves the accuracy and safety of the procedure by autonomously establishing a peripheral line for blood draws and IV's. The device combines a near-infrared imaging system, computer vision software, and a robotically driven needle within a portable shell. The device operates by imaging and mapping in real-time the 3D spatial coordinates of subcutaneous veins in order to direct the needle into a designated vein. We demonstrate proof of concept by assessing imaging performance in humans and cannulation accuracy on an advanced phlebotomy training model.

The near infrared imaging system for the real-time protection of the JET ITER-like wall

2017 ◽  
Vol T170 ◽  
pp. 014027 ◽  
Author(s):  
A Huber ◽  
D Kinna ◽  
V Huber ◽  
G Arnoux ◽  
I Balboa ◽  
...  
Keyword(s):  
Real Time ◽  
Near Infrared ◽  
Infrared Imaging ◽  
Imaging System ◽  
Near Infrared Imaging ◽  
The Real ◽  
Infrared Imaging System
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