• Title/Summary/Keyword: Infrared camera

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Design of an Infrared Camera using a Dual-band Infrared Detector (이중대역 적외선 검출기를 이용한 적외선 카메라 설계)

  • Park, Jin-Ho;Kim, Hong-Rak;Kim, Kyoung-Il;Lee, Da-Been
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.22 no.5
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    • pp.93-97
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    • 2022
  • Infrared scenes usually contain also spectral information which cannot be resolved using normal single-band infrared cameras. Multispectral infrared imaging cameras give access to the comprehensive information contained within infrared scenes. A Dual-band infrared Camera, a type of multispectral infrared imaging cameras, has the advantage of simple system. A Dual-band Infrared Camera gives access to the spectral information as wells as the temperature information within infrared scenes. Multispectral imaging generally increases the detection and identification performance of a Dual-band Infrared Camera. This paper describes a design of an infrared Camera using a Dual-band Infrared Detector to simultaneously receive infrared radiation from the medium-wave infrared/long-wave infrared(MWIR/LWIR) bands.

Effective Compaction Method of Hot Mix Asphalt Using Infrared Camera (Infrared Camera를 활용한 가열 아스팔트 혼합물의 효율적인 다짐관리 방안)

  • Kim, Jun-Hyung;Lee, Suck-Hong;Kim, Wan-Sang
    • 한국방재학회:학술대회논문집
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    • 2007.02a
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    • pp.105-108
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    • 2007
  • In resent years, temperature segregation has been identified as one of the most important concepts concerning segregation. An Infrared Camera is one of the tools that have been recognized to be effective in identifying temperature segregation. Several state of USA have recognized the problem and have enacted Specifications, and/or test procedures to eliminate temperature segregation. The major objective of this study is to investigate effective compaction method of hot mix asphalt during road construction using Infrared Camera.

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A Practical FastSLAM Implementation Method using an Infrared Camera for Indoor Environments (실내 환경에서 Infrared 카메라를 이용한 실용적 FastSLAM 구현 방법)

  • Zhang, Hairong;Lee, Heon-Cheol;Lee, Beom-Hee
    • The Journal of Korea Robotics Society
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    • v.4 no.4
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    • pp.305-311
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    • 2009
  • FastSLAM is a factored solution to SLAM problem using a Rao-Blackwellized particle filter. In this paper, we propose a practical FastSLAM implementation method using an infrared camera for indoor environments. The infrared camera is equipped on a Pioneer3 robot and looks upward direction to the ceiling which has infrared tags with the same height. The infrared tags are detected with theinfrared camera as measurements, and the Nearest Neighbor method is used to solve the unknown data association problem. The global map is successfully built and the robot pose is predicted in real time by the FastSLAM2.0 algorithm. The experiment result shows the accuracy and robustness of the proposed method in practical indoor environment.

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Design of a Reflector for Infrared Camera (열화상 카메라용 반사경 설계)

  • Bae, Young-Chul
    • The Journal of the Korea institute of electronic communication sciences
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    • v.9 no.1
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    • pp.97-104
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    • 2014
  • Recently infrared cameras have been widely used to diagnosis degradation status of the power substitution system. At the place of high magnetic field, however, electronic parts of infrared camera take a place problem that is not reasonable working due to high magnetic field. In this paper, technique of design for reflector is proposed to perform degradation diagnosis without damage of infrared camera in a power substation system including the rectifier that is able to impact to the infrared camera by high magnetic field.

Research for development of small format multi -spectral aerial photographing systems (PKNU 3) (소형 다중분광 항공촬영 시스템(PKNU 3호) 개발에 관한 연구)

  • 이은경;최철웅;서영찬;조남춘
    • Proceedings of the Korean Society of Surveying, Geodesy, Photogrammetry, and Cartography Conference
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    • 2004.11a
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    • pp.143-152
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    • 2004
  • Researchers seeking geological and environmental information, depend on remote sensing and aerial photographic datum from various commercial satellites and aircraft. However, adverse weather conditions as well as equipment expense limit the ability to collect data anywhere and anytime. To allow for better flexibility in geological and environmental data collection, we have developed a compact, multi-spectral automatic Aerial Photographic system (PKNU2). This system's Multi-spectral camera can record visible (RGB) and infrared (NIR) band (3032*2008 Pixels) images Visible and infrared band images were obtained from each camera respectively and produced color-infrared composite images to be analyzed for the purpose of the environmental monitoring. However this did not provide quality data. Furthermore, it has the disadvantage of having the stereoscopic overlap area being 60% unsatisfied due to the 12 seconds of storage time of each data The PKNU2 system in contrast, photographed photos of great capacity Thus, with such results, we have been proceeding to develop the advanced PKNU2 (PKNU3) system that consists of a color-infrared spectral camera that can photograph in the visible and near-infrared bands simultaneously using a single sensor, a thermal infrared camera, two 40G computers to store images, and an MPEG board that can compress and transfer data to the computer in real time as well as be able to be mounted onto a helicopter platform.

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On the Mural Paintings Detectedc by through the Infrared T.V.Camera at Josadang, Busuk Temple (부석사 조사당 벽화조사에 따른 적외선 T.V카메라 이용)

  • Chung, Kwang-Yong
    • 보존과학연구
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    • s.7
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    • pp.218-236
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    • 1986
  • In the fields of the cultural properties, the Infrared TV camera is being initiated to use instead of the Infrared photo film fo a better means to detect the description of drawings of the paintings. Seeing from the effect of transillumination, the Infrared TV camera with its long wave of visible spectrum that makes less absorption by the pigments and with the reflection rays passing through the base of colour layers makes it able to findbase drawing and letters. The detection range of transillumination by the infrared rays depends on the kinds of pigments, lines of the base drawing and wave length of the infrared rays. In our country, it was the first time to detect by our Conservation Science Dep't of The Research Institute of Cultural Properties by means of using Infrared TV camera to determine the mural paintings on the Josadang, Busuk Temple, resulted in an epoch-making success, that we have come to know the painting technique methods, how to treat for its conservation and making replica, reproduction, etc.

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Heat Analysis of Welding-bead using Infrared Thermoimage Camera (적외선 열화상 카메라를 이용한 용접 비드의 열 해석)

  • Kim, Jae-Yeol;Shim, Jae-Gi;Yang, Dong-Jo;Yu, Sin
    • Proceedings of the Korean Society of Machine Tool Engineers Conference
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    • 2000.10a
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    • pp.57-62
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    • 2000
  • Diagnosis or measurements using Infrared thermoimage hasn't been available. A quick diagnosis and thermal analysis can be possible when that kind of system is introduced to the investigation of each part. In this study, Infrared Camera, Thermovision 900 was used in order to investigate. Infrared Camera usually detects only Infrared wave from the light in order to illustrate the temperature distribution. Infrared diagnosis system can be applied to various field. Also, it is more effective to analyze temperature distribution on the welding parts during welding process. Especially, diagnosis using Infrared camera plays an important role on thermal analysis of Axle Casing Nut for Commercial Vehicles.

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Evaluation of Defects in the Bonded Area of Shoes using an Infrared Thermal Vision Camera

  • Kim, Jae-Yeol;Yang, Dong-Jo;Kim, Chang-Hyun
    • International Journal of Control, Automation, and Systems
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    • v.1 no.4
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    • pp.511-514
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    • 2003
  • The Infrared Camera usually detects only Infrared waves emitted from the light in order to illustrate the temperature distribution. An Infrared diagnosis system can be applied to various fields. But the defect discrimination can be automatic or mechanized in the special shoes total inspection system. This study introduces a method for special shoes nondestructive total inspection. Performance of the proposed method is shown through thermo-Image.

Inspection of Calandria Reactor Area of Wolsung NPP using Thermal Infrared and CCD Images (CCD와 적외선 열영상의 다중영상을 이용한 월성원자력발전소의 칼란드리아 전면부 점검)

  • Cho, Jai-Wan;Choi, Young-Soo;Kim, Chang-Hoi;Seo, Yong-Chil;Kim, Seung-Ho
    • Proceedings of the KIPE Conference
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    • 2002.07a
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    • pp.711-714
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    • 2002
  • Thermal infrared camera have poor image qualities compared to commercial CCD cameras, as in contrast, brightness, and. resolution. To compensate the poor Image quality problems associated with the thermal infrared camera, the technique of superimposing thermal infrared image into real ccd image is proposed. The mobile robot KAEROT/m2, loaded with sensor head system at the mast, is entered to monitor leakage of heavy water and thermal abnormality of the calandria reactor area in overhaul period. The sensor head system is composed of thermal infrared camera and cod camera In parallel. When thermal abnormality on observation points and areas of calandria reactor area is occurred, unusual hot image taken from thermal infrared camera is superimposed on real CCD image. In this inspection experiment, more accurate positions of thermal abnormalities on calandria reactor area can be estimated by using technique of mapping thermal infrared image into CCD image, which include characters arranged in MPOQ order.

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A Study of Edge Detection for Auto Focus of Infrared Camera

  • Park, Hee-Duk
    • Journal of the Korea Society of Computer and Information
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    • v.23 no.1
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    • pp.25-32
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    • 2018
  • In this paper, we propose an edge detection algorithm for auto focus of infrared camera. We designed and implemented the edge detection of infrared image by using a spatial filter on FPGA. The infrared camera should be designed to minimize the image processing time and usage of hardware resource because these days surveillance systems should have the fast response and be low size, weight and power. we applied the $3{\times}3$ mask filter which has an advantage of minimizing the usage of memory and the propagation delay to process filtering. When we applied Laplacian filter to extract contour data from an image, not only edge components but also noise components of the image were extracted by the filter. These noise components make it difficult to determine the focus state. Also a bad pixel of infrared detector causes a problem in detecting the edge components. So we propose an adaptive edge detection filter that is a method to extract only edge components except noise components of an image by analyzing a variance of pixel data in $3{\times}3$ memory area. And we can detect the bad pixel and replace it with neighboring normal pixel value when we store a pixel in $3{\times}3$ memory area for filtering calculation. The experimental result proves that the proposed method is effective to implement the edge detection for auto focus in infrared camera.