Publications

09/05/2012
Eric D Simmon, Joe Chalfoun, Arthur Griesser

Many of today‰s extremely complex meta-systems are cross-domain, they require development by multiple stakeholder groups with different goals each implementing a sub-set of the functionality required for the entire meta-system to operate. As these systems become more complex it becomes more difficult to understand how the sub-systems fit together into the…


07/27/2012
Peter Bajcsy, Mary C Brady, Julien Amelot

Cell measurements are derived frequently from the results of pixel classification and contiguous region segmentation of microscopy images. Image segmentation is accomplished by classifying image pixels based on high dimensional image features computed from the pixel neighborhood. This paper addresses the conformance measurements of image features to Bayes…


07/17/2012
Peter Bajcsy, Mary C Brady, Antoine Vandecreme, Benjamin J Long,...

“Toward Web Accessible Reference Measurements of Image Similarity,” Research areas: Health IT, Information Processing Systems, Imaging Keywords: image; comparison; measure; similarity; web-services; mobile device http://www.nist.gov/manuscript-publication-search.cfm?pub_id=911666


07/17/2012
Peter Bajcsy, Mary C Brady, Antoine Vandecreme, Benjamin J Long,...

07/01/2012
G. Stenbakken, Julien Amelot

Abstract—As the electric power grid is changing to a smarter more dynamically controlled system, there is increasing need for measurements that show the global status of the system for wide- area monitoring and control. These measurements require time synchronization across the grid. This synchronization is obtained by the use of GPS clocks. As the number…


04/10/2012
Mary C Brady, K. Bhadriraju, A. Plant, Joe Chalfoun

The purpose of this Cold Spring Harbor meeting was to explore and encourage exchange of ideas and results about the development of automated imaging systems and image analysis, and how these systems and approaches are accelerating efforts to undertake phenotyping of large numbers of biological samples in parallel and/or high throughput mode.


03/22/2012
YaShian Li-Baboud, Clement Vasseur, Jeffrey Fletcher, James Moyne,...

The numerous time synchronization performance requirements in the Smart Grid entails the need for a set of common metrics and test methods to verify the ability of the network system and its components to meet the power industry�s accuracy, reliability and interoperability criteria for next-generation substations. In order to develop viable test methods,…


12/30/2011
Paul Khouri Saba, Marcus W Newrock, Bertr, C. Stivalet

As mobile devices‰ capabilities keep on improving, today‰s mobile software ecosystem evolves at an unprecedented speed. This evolution makes mobile software development more common and critical. Moreover, the ever-increasing number of new development platforms can make it difficult for developers new to mobile application development. Are there elements…


12/05/2011

Abstract,We present a framework for the execution and dissemination of customizable content-based file comparison methods. Given digital objects such as files, database entries, or in-memory data structures, we are interested in establishing their proximity (i.e. similarity or dissimilarity) not based on their byte representation (i.e. file format or file…


09/14/2011

Abstract—The numerous time synchronization performance requirements in the Smart Grid necessitates a set of common metrics and test methods. The test methods help to verify the ability of the network system and its components to meet the power industry’s accuracy, reliability and interoperability criteria for next-generation substations. In order to…


07/26/2011
YaShian Li-Baboud, Jeffrey Fletcher, James Moyne, M. Chaluvadi,...

Clock synchronization is becoming an increasingly important characteristic of modern wide area monitoring and control systems such as the power grid. It provides an opportunity to coordinate control actions and measurement instants across hundreds of miles and numerous network topologies. Devices and networks have advanced to a point where…


07/05/2011
Eric D Simmon, Samuel Dana, Arthur Griesser
As information systems continue to become more complex, the data standards to support them grow in complexity as well. To meet the needs of today‰s systems, not only must the standards change, but the standards development process must change as well. Most standards development organizations still manually develop their standards. The rising complexity…

03/01/2011
Michael W Halter, Antonio Cardone, Alden A Dima, John T Elliott,...

The extracellular matrix protein tenascin-C plays a critical role in development, wound healing, and cancer progression, but how it is controlled and how it exerts its physiological responses remain unclear. By quantifying the behavior of live cells with phase contrast and fluorescence microscopy, the dynamic regulation of TN-C promoter activity is…


12/15/2010
Adele P Peskin, Alden A Dima, John T Elliott, Joe Chalfoun

We have performed segmentation procedures on a large number of images from two mammalian cell lines that were seeded at low density, in order to study trends in the segmentation results and make predictions about cellular features that affect segmentation accuracy. By comparing segmentation results from approximately 40000 cells, we find a linear…


11/25/2010
Adele P Peskin, Alden A Dima, John T Elliott, James J Filliben, Joe...
We have developed a new semi-automated method for segmenting images of biological cells seeded at low density on tissue culture substrates, which we use to improve the generation of reference data for the evaluation of automated segmentation algorithms. The method was designed to mimic manual cell segmentation and is based on a model of human visual…

10/21/2010
YaShian Li-Baboud, Jeffrey Fletcher, James Moyne, Dhananjay Anand

With the increasing use of Ethernet for real time control of distributed dynamic systems, and inexpensive processing power at the sensor and actuator nodes, there is a growing interest in the process control community to move towards ,model based‰ distributed control. Prior work shows that the lack of precise time synchronization is a critical hindrance…


10/01/2010
YaShian Li-Baboud, Julien L Guen, Alan Weber, Paul McGuire, Julien...

Sensor networks and intelligent control have garnered much excitement among researchers in industry, government, and academia. Revolutionary advances have been made in the deployment of sensors and control systems for driving intelligent applications in a diverse array of fields from tsunami prediction to smart buildings to robotics and autonomous…


09/30/2010
Matthew Molek, Katherine C Morris

This document describes the Constraint Generator. The Constraint Generator is a tool developed at NIST to automate the generation of schematron scripts for an advance validation of XML documents. The tool allows the user to open an XSD schema, view a tree of the contents, and add constraints on the nodes by selecting them from the tree view. In this…


09/29/2010
YaShian Li-Baboud, Jeffrey Fletcher, James Moyne, Julien Amelot,...

Abstract—Practical implementations in distributed model based control face a fundamental trade-off between model complexity and the number of modeled nodes. For linear systems, higher order models better capture the behavior of the system at higher frequencies, but the effective operating frequency range is limited during implementation due to…