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2D LiDAR and camera fusion in 3D modeling of indoor environment 二维激光雷达与相机融合在室内环境三维建模中的应用
2015 National Aerospace and Electronics Conference (NAECON) Pub Date : 2015-06-15 DOI: 10.1109/NAECON.2015.7443100
Juan Li, Xiang He, Jia Li
{"title":"2D LiDAR and camera fusion in 3D modeling of indoor environment","authors":"Juan Li, Xiang He, Jia Li","doi":"10.1109/NAECON.2015.7443100","DOIUrl":"https://doi.org/10.1109/NAECON.2015.7443100","url":null,"abstract":"Detailed 3D modeling of indoor scene has become an important topic in many research fields. It can provide extensive information about the environment and boost various location based services, such as interactive gaming and indoor navigation. This paper presents an indoor scene construction approach using 2D line-scan LiDAR and entry-level digital camera. Both devices are mounted rigidly on a robotic servo, which sweeps vertically to cover the third dimension. Fiducial target based extrinsic calibration is applied to acquire transformation matrices between LiDAR and camera. Based on the transformation matrix, we perform registration to fuse the color images from the camera with the 3D points cloud from the LiDAR. The whole system setup has much lower cost as compared to systems using 3D LiDAR and omnidirectional camera. Using pre-calculated transformation matrices instead of feature extraction techniques such as SIFT or SURF in registration gives better fusion result and lower computational complexity. The experiments carried out in office building environment show promising results of our approach.","PeriodicalId":133804,"journal":{"name":"2015 National Aerospace and Electronics Conference (NAECON)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124987271","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 37
A modular approach for key-frame selection in wide area surveillance video analysis 广域监控视频分析中关键帧选择的模块化方法
2015 National Aerospace and Electronics Conference (NAECON) Pub Date : 2015-06-15 DOI: 10.1109/NAECON.2015.7443036
Almabrok E. Essa, P. Sidike, V. Asari
{"title":"A modular approach for key-frame selection in wide area surveillance video analysis","authors":"Almabrok E. Essa, P. Sidike, V. Asari","doi":"10.1109/NAECON.2015.7443036","DOIUrl":"https://doi.org/10.1109/NAECON.2015.7443036","url":null,"abstract":"This paper presents an efficient preprocessing algorithm for big data analysis. Our proposed key-frame selection method utilizes the statistical differences among subsequent frames to automatically select only the frames that contain the desired contextual information and discard the rest of the insignificant frames. We anticipate that such key frame selection technique will have significant impact on wide area surveillance applications such as automatic object detection and recognition in aerial imagery. Three real-world datasets are used for evaluation and testing and the observed results are encouraging.","PeriodicalId":133804,"journal":{"name":"2015 National Aerospace and Electronics Conference (NAECON)","volume":"92 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133789415","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
An LG graph based monitoring scheme for representing incomplete objects 一种基于LG图的不完整对象表示监控方案
2015 National Aerospace and Electronics Conference (NAECON) Pub Date : 2015-06-15 DOI: 10.1109/NAECON.2015.7443078
Michael Robberloth, N. Bourbakis
{"title":"An LG graph based monitoring scheme for representing incomplete objects","authors":"Michael Robberloth, N. Bourbakis","doi":"10.1109/NAECON.2015.7443078","DOIUrl":"https://doi.org/10.1109/NAECON.2015.7443078","url":null,"abstract":"One of the challenging problems in the field of Objects Recognition is the incomplete appearance of objects and the need to make a guess or a decision about the existence of such objects. There are several research efforts to this direction, mainly based on models from the estimation theory. This paper we present an alternative approach based on the use of a geometrically focused image processing method, the LG Algorithm, when simple objects are partially objects and the results from the application of such an algorithm.","PeriodicalId":133804,"journal":{"name":"2015 National Aerospace and Electronics Conference (NAECON)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133709642","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
From phased array to holographic radar 从相控阵到全息雷达
2015 National Aerospace and Electronics Conference (NAECON) Pub Date : 2015-06-15 DOI: 10.1109/NAECON.2015.7443068
Siyang Cao, Yuan F. Zheng, R. Ewing
{"title":"From phased array to holographic radar","authors":"Siyang Cao, Yuan F. Zheng, R. Ewing","doi":"10.1109/NAECON.2015.7443068","DOIUrl":"https://doi.org/10.1109/NAECON.2015.7443068","url":null,"abstract":"A new radar system named holographic radar is proposed in this paper. The new radar records the transmission pattern of the electromagnetic wave instead of the directed amplitude and phase information from individual target, which is utilized by the traditional electronic scanning radar. The recorded pattern can then be studied for target detection or for radar imaging. The advantages of the new radar system are multi-folds: a. the receiver elements do not need to be synchronized in sampling, b. radar system can resolve the ranges of interested targets using a single frequency waveform instead of a wide bandwidth signal, and c. the single frequency waveform reduces the complexity of the microwave circuits which build up the radar system.","PeriodicalId":133804,"journal":{"name":"2015 National Aerospace and Electronics Conference (NAECON)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114333266","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Two viewing angles for holographies in radar and light 雷达和光全息摄影的两个视角
2015 National Aerospace and Electronics Conference (NAECON) Pub Date : 2015-06-15 DOI: 10.1109/NAECON.2015.7443069
Sihao Ding, Siyang Cao, Ying Li, Yuan F. Zheng, R. Ewing
{"title":"Two viewing angles for holographies in radar and light","authors":"Sihao Ding, Siyang Cao, Ying Li, Yuan F. Zheng, R. Ewing","doi":"10.1109/NAECON.2015.7443069","DOIUrl":"https://doi.org/10.1109/NAECON.2015.7443069","url":null,"abstract":"In this work, a new topic, which is to synthesize (recover) the holograms between two or more recorded holograms with a large angle discrepancy, is presented. The technique aims at enlarging view angle, speeding up the recording process by reducing sensing points, and increasing resolution in holographic radar and light. Our method to tackle the problem is proposed. We analyze the problem in both single target and multiple targets cases. Given recorded magnitudes at receiving elements, nearby magnitudes of virtual receiving elements can be approximated. The accuracy of the approximation is also evaluated.","PeriodicalId":133804,"journal":{"name":"2015 National Aerospace and Electronics Conference (NAECON)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116695886","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
MW blood sample characterization using co-axial transmission line 利用同轴传输线对MW血样进行表征
2015 National Aerospace and Electronics Conference (NAECON) Pub Date : 2015-06-15 DOI: 10.1109/NAECON.2015.7443075
Evan Hilderbrand, Joseph J. Korfhagen, G. J. Shaw, A. Ferendeci
{"title":"MW blood sample characterization using co-axial transmission line","authors":"Evan Hilderbrand, Joseph J. Korfhagen, G. J. Shaw, A. Ferendeci","doi":"10.1109/NAECON.2015.7443075","DOIUrl":"https://doi.org/10.1109/NAECON.2015.7443075","url":null,"abstract":"Microwave Tomography (MWT) is being developed as an accurate detection of hemorrhagic strokes using microwaves. A transmission line technique is used to measure the relative permittivity of blood as a function of frequency and is presented to provide insight on an appropriate operating frequency for MWT. A response calibration method is used on a coaxial sample holder to accurately measure the scattering parameters of and characterization of liquid samples. This paper demonstrates the ability to accurately measure liquid samples by replacing the coaxial line dielectric with liquid. Experimental results from water and 99% isopropyl alcohol are compared against known values to provide verification of the coaxial airline to accurately measure blood samples in the microwave region.","PeriodicalId":133804,"journal":{"name":"2015 National Aerospace and Electronics Conference (NAECON)","volume":"136 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132052935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Active visual search (AViS) dataset Track: Sensory exploitation 主动视觉搜索(AViS)数据集跟踪:感官开发
2015 National Aerospace and Electronics Conference (NAECON) Pub Date : 2015-06-15 DOI: 10.1109/NAECON.2015.7443101
Alexandra Hildenbrandt, Bernard Abayowa
{"title":"Active visual search (AViS) dataset Track: Sensory exploitation","authors":"Alexandra Hildenbrandt, Bernard Abayowa","doi":"10.1109/NAECON.2015.7443101","DOIUrl":"https://doi.org/10.1109/NAECON.2015.7443101","url":null,"abstract":"Image retrieval is a vital function for an active vision system recognizing vehicles in dynamic scenes. A pan-tilt-zoom camera provides a range of retrieval options, but is somewhat limited for algorithm development purposes in that if the conditions are not within a certain operative range (due to very bad weather, poor lighting conditions, etc.), retrieved images are not likely to be very useful. Therefore it becomes imperative to have an alternative source during development. This paper presents a dataset with an associated application programming interface (API) which seeks to be that alternative. In addition to simulating the actions and capabilities of pan-tilt-zoom cameras, this dataset and API provide access to template vehicle images as well as information on verified locations of targets which can be used for training and testing purposes.","PeriodicalId":133804,"journal":{"name":"2015 National Aerospace and Electronics Conference (NAECON)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133070491","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
FEKO based ISAR analysis for 3D object reconstruction 基于FEKO的三维目标重建ISAR分析
2015 National Aerospace and Electronics Conference (NAECON) Pub Date : 2015-06-15 DOI: 10.1109/NAECON.2015.7443064
A. Nassib, M. Almutiry, Y. Guzel, M. Wicks, L. Monte
{"title":"FEKO based ISAR analysis for 3D object reconstruction","authors":"A. Nassib, M. Almutiry, Y. Guzel, M. Wicks, L. Monte","doi":"10.1109/NAECON.2015.7443064","DOIUrl":"https://doi.org/10.1109/NAECON.2015.7443064","url":null,"abstract":"In this paper, we constructed a 3D ISAR image to better understand electromagnetic scattering by an electrically large PEC cylinder. Imaging in this context is simply the reconstruction of the spatial distribution of the conductivity of the imaged target, σ(x, y, z). According to the geometric theory of diffraction (GTD), if the wavelength at the operating frequency is small relative to the target size, then the scattered field consists of contributions from a number of electrically isolated scattering centers. ISAR imaging algorithms rely upon an assumption that the area under observation consists of a collection of infinitesimally small isotropic scatterers (i.e., the point scatterer model). This approximation is based upon the application of a scalar contrast function which ignores directional dependency, since point scatterers radiate isotropically in all directions. 3D image reconstruction is obtained through retrieval of the scalar reflectivity function from simulated data, which provides information regarding the target under investigation.","PeriodicalId":133804,"journal":{"name":"2015 National Aerospace and Electronics Conference (NAECON)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126204703","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Vehicle tracking under occlusion conditions using directional ringlet intensity feature transform 基于定向小波强度特征变换的遮挡条件下车辆跟踪
2015 National Aerospace and Electronics Conference (NAECON) Pub Date : 2015-06-15 DOI: 10.1109/NAECON.2015.7443041
Evan Krieger, P. Sidike, Theus H. Aspiras, V. Asari
{"title":"Vehicle tracking under occlusion conditions using directional ringlet intensity feature transform","authors":"Evan Krieger, P. Sidike, Theus H. Aspiras, V. Asari","doi":"10.1109/NAECON.2015.7443041","DOIUrl":"https://doi.org/10.1109/NAECON.2015.7443041","url":null,"abstract":"The tracking of vehicles in wide area motion imagery (WAMI) can be a challenge due to the full and partial occlusions that can occur. The proposed solution for this challenge is to use the Directional Ringlet Intensity Feature Transform (DRIFT) feature extraction method with a Kalman filter. The proposed solution will utilize the properties of the DRIFT feature to solve the partial occlusion challenges. The Kalman filter will be used to estimate the object location during a full occlusion. The proposed solution will be tested on several vehicle sequences from the Columbus Large Image Format (CLIF) dataset.","PeriodicalId":133804,"journal":{"name":"2015 National Aerospace and Electronics Conference (NAECON)","volume":"11 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120847333","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Germanium Telluride (GeTe) phase change resistors for reconfigurable circuit applications 用于可重构电路的碲化锗(GeTe)相变电阻
2015 National Aerospace and Electronics Conference (NAECON) Pub Date : 2015-06-15 DOI: 10.1109/NAECON.2015.7443071
J. Sattler, R. Coutu
{"title":"Germanium Telluride (GeTe) phase change resistors for reconfigurable circuit applications","authors":"J. Sattler, R. Coutu","doi":"10.1109/NAECON.2015.7443071","DOIUrl":"https://doi.org/10.1109/NAECON.2015.7443071","url":null,"abstract":"In this paper, we report on the electrical properties of the phase change (PC) material, Germanium Telluride (GeTe), and discuss the fabrication and testing of GeTe resistors. Vertical and horizontal GeTe resistors are fabricated and tested through resistance measurements before and after substrate heating and joule heating performed by voltage pulsing. Resistance changes of six orders of magnitude and four orders of magnitude are demonstrated by substrate heating and voltage pulsing, respectively. The horizontal resistor designs are shown to be impractical for low voltage applications due to the their large inter-electrode distances. Various sizes of GeTe resistors ranging from 15×15×0.4 μm3 to 3×3×0.09 μm3 are tested and a relationship is demonstrated between GeTe resistor length and the threshold voltage pulse required for phase change.","PeriodicalId":133804,"journal":{"name":"2015 National Aerospace and Electronics Conference (NAECON)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122615764","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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