Defense, Security, and Sensing最新文献_第7页

Correlation of partial frames in video matching 视频匹配中部分帧的相关性

Defense, Security, and Sensing Pub Date : 2013-06-17 DOI: 10.1117/12.2016645

Boris Kovalerchuk, Sergei Kovalerchuk

引用次数: 2

Vehicle detection and orientation estimation using the radon transform 基于radon变换的车辆检测与方向估计

Defense, Security, and Sensing Pub Date : 2013-06-14 DOI: 10.1117/12.2016407

R. Pelapur, F. Bunyak, K. Palaniappan, G. Seetharaman

引用次数: 10

Guidance in feature extraction to resolve uncertainty 特征提取以解决不确定性的指导

Defense, Security, and Sensing Pub Date : 2013-06-13 DOI: 10.1117/12.2016509

Boris Kovalerchuk, Michael Kovalerchuk, S. Streltsov, M. Best

引用次数: 2

Feature selection for appearance-based vehicle tracking in geospatial video 地理空间视频中基于外观的车辆跟踪特征选择

Defense, Security, and Sensing Pub Date : 2013-06-13 DOI: 10.1117/12.2015672

M. Poostchi, F. Bunyak, K. Palaniappan, G. Seetharaman

{"title":"Feature selection for appearance-based vehicle tracking in geospatial video","authors":"M. Poostchi, F. Bunyak, K. Palaniappan, G. Seetharaman","doi":"10.1117/12.2015672","DOIUrl":"https://doi.org/10.1117/12.2015672","url":null,"abstract":"Current video tracking systems often employ a rich set of intensity, edge, texture, shape and object level features combined with descriptors for appearance modeling. This approach increases tracker robustness but is compu- tationally expensive for realtime applications and localization accuracy can be adversely affected by including distracting features in the feature fusion or object classification processes. This paper explores offline feature subset selection using a filter-based evaluation approach for video tracking to reduce the dimensionality of the feature space and to discover relevant representative lower dimensional subspaces for online tracking. We com- pare the performance of the exhaustive FOCUS algorithm to the sequential heuristic SFFS, SFS and RELIEF feature selection methods. Experiments show that using offline feature selection reduces computational complex- ity, improves feature fusion and is expected to translate into better online tracking performance. Overall SFFS and SFS perform very well, close to the optimum determined by FOCUS, but RELIEF does not work as well for feature selection in the context of appearance-based object tracking.","PeriodicalId":338283,"journal":{"name":"Defense, Security, and Sensing","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132926519","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: 15

Geometric exploration of virtual planes in a fusion-based 3D data registration framework 基于融合的三维数据配准框架中虚拟平面的几何探索

Defense, Security, and Sensing Pub Date : 2013-06-13 DOI: 10.1117/12.2015933

H. Aliakbarpour, K. Palaniappan, J. Dias

引用次数: 8

KOLAM: a cross-platform architecture for scalable visualization and tracking in wide-area imagery KOLAM:用于广域图像的可扩展可视化和跟踪的跨平台架构

Defense, Security, and Sensing Pub Date : 2013-06-13 DOI: 10.1117/12.2018162

Joshua Fraser, Anoop Haridas, G. Seetharaman, R. Rao, K. Palaniappan

{"title":"KOLAM: a cross-platform architecture for scalable visualization and tracking in wide-area imagery","authors":"Joshua Fraser, Anoop Haridas, G. Seetharaman, R. Rao, K. Palaniappan","doi":"10.1117/12.2018162","DOIUrl":"https://doi.org/10.1117/12.2018162","url":null,"abstract":"KOLAM is an open, cross-platform, interoperable, scalable and extensible framework supporting a novel multi- scale spatiotemporal dual-cache data structure for big data visualization and visual analytics. This paper focuses on the use of KOLAM for target tracking in high-resolution, high throughput wide format video also known as wide-area motion imagery (WAMI). It was originally developed for the interactive visualization of extremely large geospatial imagery of high spatial and spectral resolution. KOLAM is platform, operating system and (graphics) hardware independent, and supports embedded datasets scalable from hundreds of gigabytes to feasibly petabytes in size on clusters, workstations, desktops and mobile computers. In addition to rapid roam, zoom and hyper- jump spatial operations, a large number of simultaneously viewable embedded pyramid layers (also referred to as multiscale or sparse imagery), interactive colormap and histogram enhancement, spherical projection and terrain maps are supported. The KOLAM software architecture was extended to support airborne wide-area motion imagery by organizing spatiotemporal tiles in very large format video frames using a temporal cache of tiled pyramid cached data structures. The current version supports WAMI animation, fast intelligent inspection, trajectory visualization and target tracking (digital tagging); the latter by interfacing with external automatic tracking software. One of the critical needs for working with WAMI is a supervised tracking and visualization tool that allows analysts to digitally tag multiple targets, quickly review and correct tracking results and apply geospatial visual analytic tools on the generated trajectories. One-click manual tracking combined with multiple automated tracking algorithms are available to assist the analyst and increase human effectiveness.","PeriodicalId":338283,"journal":{"name":"Defense, Security, and Sensing","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116222680","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: 7

Multisource information fusion for enhanced simultaneous tracking and recognition 多源信息融合增强同步跟踪和识别

Defense, Security, and Sensing Pub Date : 2013-06-12 DOI: 10.1117/12.2016616

B. Kahler

{"title":"Multisource information fusion for enhanced simultaneous tracking and recognition","authors":"B. Kahler","doi":"10.1117/12.2016616","DOIUrl":"https://doi.org/10.1117/12.2016616","url":null,"abstract":"A layered sensing approach helps to mitigate sensor, target, and environmental operating conditions affecting target tracking and recognition performance. Radar sensors provide standoff sensing capabilities over a range of weather conditions; however, operating conditions such as obscuration can hinder radar target tracking. By using other sensing modalities such as electro-optical (EO) building cameras or eye witness reports, continuous target tracking and recognition may be achieved when radar data is unavailable. Information fusion is necessary to associate independent multisource data to ensure accurate target track and identification is maintained. Exploiting the unique information obtained from multiple sensor modalities with non-sensor sources will enhance vehicle track and recognition performance and increase confidence in the reported results by providing confirmation of target tracks when multiple sources have overlapping coverage of the vehicle of interest. The author uses a fusion performance model in conjunction with a tracking and recognition performance model to assess which combination of information sources produce the greatest gains for both urban and rural environments for a typical sized ground vehicle.","PeriodicalId":338283,"journal":{"name":"Defense, Security, and Sensing","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121774943","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

Aural stealth of portable HOT infrared imager 便携式热红外成像仪的听觉隐身

Defense, Security, and Sensing Pub Date : 2013-06-11 DOI: 10.1117/12.2017125

A. Veprik

{"title":"Aural stealth of portable HOT infrared imager","authors":"A. Veprik","doi":"10.1117/12.2017125","DOIUrl":"https://doi.org/10.1117/12.2017125","url":null,"abstract":"Further reduction of size, weight and power consumption of the High Operating Temperature (HOT) infrared (IR) Integrated Detector-Dewar-Cooler Assemblies (IDDCA) eventually calls for development of high-speed cryocoolers. In case of integral rotary design, the immediate penalty is the more intensive slapping of compression and expansion pistons along with intensification of micro collisions inherent for the operation of crank-slide linkages featuring ball bearings. Resulting from this is the generation of impulsive vibration export, the spectrum of which features the driving frequency along with numerous multiples covering the entire range of audible frequencies. In a typical design of an infrared imager, the metal light-weight enclosure accommodates a directly mounted IDDCA and an optical train, thus serving as an optical bench and heat sink. This usually results in excitation of structural resonances in the said enclosure and, therefore, in excessive noise generation compromising the aural stealth. The author presents the complex approach to a design of aural undetectable infrared imagers in which the IDDCA is mounted upon the imager enclosure through a silent pad. Special attention is paid to resolving the line of sight stability and heat sinking issues. The demonstration imager relying on Ricor K562S based IDDCA meets the most stringent requirement to 10 meters aural non-detectability distance (per MIL-STD 1474D, Level II) even during boost cooldown phase of operation.","PeriodicalId":338283,"journal":{"name":"Defense, Security, and Sensing","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114645685","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: 3

80×80 VPD PbSe: the first uncooled MWIR FPA monolithically integrated with a Si-CMOS ROIC 80×80 VPD PbSe:第一个非冷却的MWIR FPA单片集成Si-CMOS ROIC

Defense, Security, and Sensing Pub Date : 2013-06-11 DOI: 10.1117/12.2015290

G. Vergara, R. Linares Herrero, R. Gutíerrez Álvarez, C. Fernández-Montojo, L. J. Gomez, V. Villamayor, A. Baldasano Ramírez, M. Montojo

{"title":"80×80 VPD PbSe: the first uncooled MWIR FPA monolithically integrated with a Si-CMOS ROIC","authors":"G. Vergara, R. Linares Herrero, R. Gutíerrez Álvarez, C. Fernández-Montojo, L. J. Gomez, V. Villamayor, A. Baldasano Ramírez, M. Montojo","doi":"10.1117/12.2015290","DOIUrl":"https://doi.org/10.1117/12.2015290","url":null,"abstract":"In this work a breakthrough in the field of low cost uncooled infrared detectors is presented: an 80x80 MWIR VPD PbSe detector monolithically integrated with the corresponding Si-CMOS circuitry. Fast speed of response and high frame rates are, until date, non existing performances in the domain of low cost uncooled IR imagers. The new detector presented fills the gap. The device is capable to provide MWIR images to rates as high as 2 KHz, full frame, in real uncooled operation which converts it in an excellent solution for being used in applications where short events and fast transients dominate the system dynamics to be studied or detected. VPD PbSe technology is unique because combines all the main requirements demanded for a volume ready technology: 1. Simple processing 2. Good reproducibility and homogeneity 3. Processing compatible with big areas substrates 4. Si-CMOS compatible (no hybridation needed) 5. Low cost optics and packagin The new FPA represents a milestone in the road towards affordable uncooled MWIR imagers and it is the demonstration of VPD PbSe technology has reached industrial maturity. The device presented in the work was processed on 8-inch Si wafers with excellent results in terms of manufacturing yield and repeatability. The technology opens the MWIR band to SWaP concept.","PeriodicalId":338283,"journal":{"name":"Defense, Security, and Sensing","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124909335","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: 12

Miniaturized day/night sight in Soldato Futuro program 在Soldato Futuro程序中小型化昼/夜瞄准器

Defense, Security, and Sensing Pub Date : 2013-06-11 DOI: 10.1117/12.2015814

A. Landini, A. Cocchi, R. Bardazzi, Mauro Sardelli, Stefano Puntri

{"title":"Miniaturized day/night sight in Soldato Futuro program","authors":"A. Landini, A. Cocchi, R. Bardazzi, Mauro Sardelli, Stefano Puntri","doi":"10.1117/12.2015814","DOIUrl":"https://doi.org/10.1117/12.2015814","url":null,"abstract":"The market of the sights for the 5.56 mm assault rifles is dominated by mainly three types of systems: TWS (Thermal Weapon Sight), the Pocket Scope with Weapon Mount and the Clip-on. The latter are designed primarily for special forces and snipers use, while the TWS design is triggered mainly by the DRI (Detection, Recognition, Identification) requirements. The Pocket Scope design is focused on respecting the SWaP (Size, Weight and Power dissipation) requirements. Compared to the TWS systems, for the last two years there was a significant technological growth of the Pocket Scope/Weapon Mount solutions, concentrated on the compression of the overall dimensions. The trend for the assault rifles is the use of small size/light weight (SWaP) IR sights, suitable mainly for close combat operations but also for extraordinary use as pocket scopes – handheld or helmet mounted. The latest developments made by Selex ES S.p.A. are responding precisely to the above-mentioned trend, through a miniaturized Day/Night sight embedding state-of-the art sensors and using standard protocols (USB 2.0, Bluetooth 4.0) for interfacing with PDAs, Wearable computers, etc., while maintaining the “shoot around the corner” capability. Indeed, inside the miniaturized Day/Night sight architecture, a wireless link using Bluetooth technology has been implemented to transmit the video streaming of the rifle sight to an helmet mounted display. The video of the rifle sight is transmitted only to the eye-piece of the soldier shouldering the rifle.","PeriodicalId":338283,"journal":{"name":"Defense, Security, and Sensing","volume":"114 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117257105","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