Defense + Security Symposium最新文献

{"title":"DVE flight test results of a sensor enhanced 3D conformal pilot support system","authors":"T. Münsterer, P. Völschow, B. Singer, M. Strobel, Patrick Kramper","doi":"10.1117/12.2180634","DOIUrl":"https://doi.org/10.1117/12.2180634","url":null,"abstract":"The paper presents results and findings of flight tests of the Airbus Defence and Space DVE system SFERION performed at Yuma Proving Grounds. During the flight tests ladar information was fused with a priori DB knowledge in real-time and 3D conformal symbology was generated for display on an HMD. The test flights included low level flights as well as numerous brownout landings.","PeriodicalId":230211,"journal":{"name":"Defense + Security Symposium","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123687782","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}

{"title":"Information fusion performance evaluation for motion imagery data using mutual information: initial study","authors":"Samuel Grieggs, Michel McLaughlin, Soundararajan Ezekiel, Erik Blasch","doi":"10.1117/12.2180780","DOIUrl":"https://doi.org/10.1117/12.2180780","url":null,"abstract":"As technology and internet use grows at an exponential rate, video and imagery data is becoming increasingly important. Various techniques such as Wide Area Motion imagery (WAMI), Full Motion Video (FMV), and Hyperspectral Imaging (HSI) are used to collect motion data and extract relevant information. Detecting and identifying a particular object in imagery data is an important step in understanding visual imagery, such as content-based image retrieval (CBIR). Imagery data is segmented and automatically analyzed and stored in dynamic and robust database. In our system, we seek utilize image fusion methods which require quality metrics. Many Image Fusion (IF) algorithms have been proposed based on different, but only a few metrics, used to evaluate the performance of these algorithms. In this paper, we seek a robust, objective metric to evaluate the performance of IF algorithms which compares the outcome of a given algorithm to ground truth and reports several types of errors. Given the ground truth of a motion imagery data, it will compute detection failure, false alarm, precision and recall metrics, background and foreground regions statistics, as well as split and merge of foreground regions. Using the Structural Similarity Index (SSIM), Mutual Information (MI), and entropy metrics; experimental results demonstrate the effectiveness of the proposed methodology for object detection, activity exploitation, and CBIR.","PeriodicalId":230211,"journal":{"name":"Defense + Security Symposium","volume":"98 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122823966","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}

{"title":"HMI aspects of the usage of ladar 3D data in pilot DVE support systems","authors":"T. Münsterer, P. Völschow, B. Singer, M. Strobel, Patrick Kramper, Daniel Bühler","doi":"10.1117/12.2180632","DOIUrl":"https://doi.org/10.1117/12.2180632","url":null,"abstract":"The paper discusses specifics of high resolution 3D sensor systems employed in helicopter DVE support systems and the consequences for the resulting HMI. 3D sensors have a number of specifics making them a cornerstone for helicopter pilot support or pilotage systems intended for use in DVE. Retrieving depth information gives specific advantages over 2D imagers. On the other hand certain technology and physics inherent specifics require a more elaborate visualization procedure compared to 2D image visualization. The goal of all displayed information has to be to reduce pilots workload in DVE operations. Therefore especially for displaying the processed information on an HMD as 3D conformal data requires thorough HMI considerations.","PeriodicalId":230211,"journal":{"name":"Defense + Security Symposium","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120819675","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}

{"title":"Classification of multi-source sensor data with limited labeled data","authors":"M. Crawford, S. Prasad, Xiong Zhou, Zhou Zhang","doi":"10.1117/12.2180672","DOIUrl":"https://doi.org/10.1117/12.2180672","url":null,"abstract":"Classification of multi-source data has recently gained significant attention, as accuracies can often be improved by incorporating complementary information extracted in single and multi-sensor scenarios. Supervised approaches to classification of multi-source remote sensing data are dependent on the availability of representative labeled data, which are often limited relative to the dimensionality of the data for training. To address this problem, in this paper, we propose a new framework in which active learning (AL) and semi-supervised learning (SSL) strategies are combined for multi-source classification of hyperspectral images. First, the spatial-spectral features are represented via the redundant discrete wavelet transform (RDWT). Then, the spatial context provided by the hierarchical segmentation algorithm (HSEG) in conjunction with an unsupervised pruning strategy is exploited to combine AL and SSL. Finally, SVM classification is performed due to the high dimensionality of the feature space. The proposed framework is validated with two benchmark hyperspectral data sets. Higher classification accuracies are obtained by the proposed framework with respect to other state-of-the-art active learning classification approaches.","PeriodicalId":230211,"journal":{"name":"Defense + Security Symposium","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125797668","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}

{"title":"Standoff detection of chemical and biological threats using miniature widely tunable QCLs","authors":"P. Kotidis, E. R. Deutsch, A. Goyal","doi":"10.1117/12.2178169","DOIUrl":"https://doi.org/10.1117/12.2178169","url":null,"abstract":"Standoff detection and identification of chemical threats has been the \"holy grail\" of detection instruments. The advantages of such capability are well understood, since it allows detection of the chemical threats without contact, eliminating possible operator and equipment contamination and the need for subsequent decontamination of both. In the case of explosives detection, standoff detection might enable detection of the threat at safe distances outside the blast zone. A natural extension of this capability would be to also detect and identify biological threats in a standoff mode and there are ongoing efforts to demonstrate such capability.","PeriodicalId":230211,"journal":{"name":"Defense + Security Symposium","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122653788","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}

{"title":"Autonomous micro and nano sensors for upstream oil and gas","authors":"D. Chapman, W. Trybula","doi":"10.1117/12.2177183","DOIUrl":"https://doi.org/10.1117/12.2177183","url":null,"abstract":"This paper describes the development of autonomous electronic micro and nanoscale sensor systems for very harsh downhole oilfield conditions and provides an overview of the operational requirements necessary to survive and make direct measurements of subsurface conditions. One of several significant developmental challenges is selecting appropriate technologies that are simultaneously miniaturize-able, integrate-able, harsh environment capable, and economically viable. The Advanced Energy Consortium (AEC) is employing a platform approach to developing and testing multi-chip, millimeter and micron-scale systems in a package at elevated temperature and pressure in API brine and oil analogs, with the future goal of miniaturized systems that enable the collection of previously unattainable data. The ultimate goal is to develop subsurface nanosensor systems that can be injected into oil and gas well bores, to gather and record data, providing an unparalleled level of direct reservoir characterization. This paper provides a status update on the research efforts and developmental successes at the AEC.","PeriodicalId":230211,"journal":{"name":"Defense + Security Symposium","volume":"148 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121389120","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}

{"title":"Laser phototherapy: the future of medicine","authors":"Terrance L. Baker","doi":"10.1117/12.2181555","DOIUrl":"https://doi.org/10.1117/12.2181555","url":null,"abstract":"The development of advances in surgical techniques and pharmaceuticals have dramatically contributed to the improvement of global health. However, surgical procedures and pharmaceutical agents are costly and have the potential to create severe side effects and complications for patients. Interdisciplinary researchers are looking for non-pharmaceutical therapies and non-surgical interventions to provide effective treatment for a broad range of medical conditions. This presentation describes one of the most promising therapies-photobiomodulation. After more than fifty (50) years of clinical use, no serious side effects or adverse reactions of using phototherapy as a medical treatment modality have been observed. Phototherapy affects the natural and basic mechanism of virtually all human cells and restores impaired function, triggering a subsequent cascade of positive therapeutic effects. Phototherapy currently is being used in virtually every medical specialty including dermatology, plastic surgery, family medicine, vascular surgery, thoracic surgery, ophthalmology, ENT, gastroenterology, hematology, oncology, orthopedics, endocrinology, esthetics, urology, neurology and neurosurgery to name a few. In general, phototherapy serves to improve wound healing, cellular function, reduction of edema, healing of neurological injuries, increased microcirculation and provides intrinsic pain relief. More than 3,000 scientific archived references by the Swedish Laser Society report restorative, therapeutic and healing results from the use of photobiomodulation therapy. As with all types of scientific work, new discoveries generate new questions. In spite of tremendous advances in the scientific understanding of the medical effects of light we still do not know all the optimal parameters. We also are still struggling as clinicians and scientists to understand the scientific term which best describes the medical effects of light on the modulation of human cell function. Despite the fact that we are still learning the pathophysiology every day and searching to find the terminology to describe the effects that we are observing it is important to know that clinicians and researchers alike know enough to make phototherapy a mainstream clinical treatment modality. The application of phototherapy inducing photobiomodulation effects has changed the lives of hundreds of thousands of patients and will continue to grow as our understanding of the healing abilities of the application of light continues to improve.","PeriodicalId":230211,"journal":{"name":"Defense + Security Symposium","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124299887","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}

{"title":"Three-dimensional plasmonic metamaterial absorbers based on all-metal structures","authors":"S. Ogawa, D. Fujisawa, M. Kimata","doi":"10.1117/12.2176550","DOIUrl":"https://doi.org/10.1117/12.2176550","url":null,"abstract":"Three-dimensional plasmonic metamaterial absorbers (3-D PMAs) based on all-metal structures were developed. 3-D PMAs consist of a periodic array of thin metal micropatches connected to a thin metal plate with narrow metal posts. The 3-D PMA consists of plasmonic metal (Au) based components. 3-D PMAs were fabricated by a two-step lift-off procedure with a carbon sacrifice layer and a narrow metal post with a height of 200 nm was achieved. Reflection spectroscopy measurements demonstrate that the wavelength-selective absorption was realized, and the absorption wavelength can be controlled by the micropatch size, regardless of the micropatch-array period, and can be longer than the micropatch array period. Wavelength selective absorption is possible due to the surface plasmonic resonant mode localized at the micropatches. The metal posts have negligible impact on the plasmonic resonance. 3-D PMAs based on all-metal structures can be applicable for a wide range of the middle- and long-wavelength IR region due to the lack of additional absorption by an insulator layer based on SiO2, SiN, or Al2O3, which are typically used in metal-insulatormetal absorbers. 3-D PMAs have a small thermal mass and an absorption wavelength beyond the period, which result in a fast response and small pixel size. The results obtained here should contribute to the high-performance wavelengthselective uncooled IR sensors and IR emitters.","PeriodicalId":230211,"journal":{"name":"Defense + Security Symposium","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123243468","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}

{"title":"Shutters with embedded microprocessors","authors":"S. Stephenson","doi":"10.1117/12.2180603","DOIUrl":"https://doi.org/10.1117/12.2180603","url":null,"abstract":"Shutters are used to periodically provide a non-uniformity correction (NUC) calibration surface to micro bolometers. Many bolometer applications, such as TWS and DVE, require compact, power efficient actuators. Actuators in these applications, such as bistable solenoids and stepper motors, benefit from complex drive schemes. Consumer electronics products have generated compact, low-cost drive components that can be used to embed complex drives into these shutters. Shutter drives using these components maintain compactness and power efficiency while simplifying interfaces at minimal cost. Recently, several commercially available shutter systems have been created that incorporate embedded microprocessors into shutters usable for NUC correction of micro bolometers.","PeriodicalId":230211,"journal":{"name":"Defense + Security Symposium","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124029165","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}

{"title":"BAE systems' SMART chip camera FPA development","authors":"L. Sengupta, P. Auroux, Don McManus, D. Harris, R. Blackwell, Jeffrey Bryant, Mihir Boal, Evan Binkerd","doi":"10.1117/12.2177011","DOIUrl":"https://doi.org/10.1117/12.2177011","url":null,"abstract":"BAE Systems' SMART (Stacked Modular Architecture High-Resolution Thermal) Chip Camera provides very compact long-wave infrared (LWIR) solutions by combining a 12 μm wafer-level packaged focal plane array (FPA) with multichip-stack, application-specific integrated circuit (ASIC) and wafer-level optics. The key innovations that enabled this include a single-layer 12 μm pixel bolometer design and robust fabrication process, as well as wafer-level lid packaging. We used advanced packaging techniques to achieve an extremely small-form-factor camera, with a complete volume of 2.9 cm3 and a thermal core weight of 5.1g. The SMART Chip Camera supports up to 60 Hz frame rates, and requires less than 500 mW of power. This work has been supported by the Defense Advanced Research Projects Agency’s (DARPA) Low Cost Thermal Imager − Manufacturing (LCTI-M) program, and BAE Systems’ internal research and development investment.","PeriodicalId":230211,"journal":{"name":"Defense + Security Symposium","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127257592","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}