Digital video data archive for crash test systems

1997 ◽  
Author(s):  
Christian Hock
Keyword(s):  
Digital Video ◽  
Video Data ◽  
Crash Test ◽  
Data Archive ◽  
Test Systems

Generic Multimedia Database for Highway Infrastructure Management

1998 ◽  
Vol 1615 (1) ◽  
pp. 56-64
Author(s):  
Kelvin C. P. Wang ◽  
Xuyang Li ◽  
Robert P. Elliott
Keyword(s):  
Information System ◽  
Visual Information ◽  
High Speed ◽  
Traffic Accidents ◽  
Digital Video ◽  
Three Dimensional ◽  
Pavement Management ◽  
Video Data ◽  
Data Synchronization ◽  
Multimedia Database

Images of highway right-of-way are used widely by highway agencies through their photologging services to obtain visual information for the analysis of traffic accidents, design improvement, and highway pavement management. The video data usually are in analog format, which is limited in accessibility and search, cannot automatically display site engineering data sets with video, and does not allow simultaneous access by multiple users. Recognizing the need to improve the existing photologging systems, the state highway agency of Arkansas sponsored a research project to develop a full digital, computer-based highway information system that extends the capabilities of existing photologging equipment. The software technologies developed for a distributed multimedia-based highway information system (MMHIS) are presented. MMHIS removes several limitations of the existing systems. The advanced technologies used in this system include digital video, data synchronization, high-speed networking, and video server. The developed system can dynamically link the digital video with the corresponding engineering site data based on a novel algorithm for the data synchronization. Also presented is a unique technique to construct a three-dimensional user interface for MMHIS based on the terrain map of Arkansas.

Digital video and laser microscopic studies of developmental events in living neurons and nervous systems

1989 ◽  
Vol 47 ◽  
pp. 832-832
Author(s):  
S. Smith ◽  
P. Forscher ◽  
M. Cooper ◽  
A. Waxman
Keyword(s):  
Laser Scanning ◽  
Digital Video ◽  
Cell Structure ◽  
Cell Signalling ◽  
Optical Memory ◽  
Cytosolic Calcium ◽  
Nervous System Development ◽  
Video Data ◽  
Microscopic Studies

Motility and structural change are extremely important aspects of nervous system development. We are working to refine digital video and laser confocal light microscopic methods for visualization of neuronal motility both in situ and in vitro. Our efforts are oriented especially toward the collection of digitally-enhanced time-lapse movies, for which purpose we especially favor the use of the optical memory disc video recorder. It is our feeling that such dynamic observations are yielding insights not obtainable from examination of fixed specimens. Work to be discussed includes video microscopic studies of the basic motility mechanisms of neuronal growth cones in vitro and laser confocal observations of mammalian CNS growth cone motility and cell proliferation and migration events in slices of embryonic rat cortex.As cell markers for the laser confocal studies, we have used a variety of fluorescent compunds including the lipid stain Dil(C18-3) and the Ca indicator Fluo-3. The latter compound is of special interest in revealing the cytosolic calcium transients associated with various forms of cell signalling as well as making cell structure and motility visible. We have found the use of slow-scan, single-sweep laser image acquisition especially valuable in the collection images from living, moving cells, as this mode circumvents the blurring of moving specimen details associated with the prolonged integration times of low-light-level video data acquisition and multi-sweep averaging in laser scanning systems.

scholarly journals Use of Digital Video Cameras to Determine the Efficacy of Two Trap Types for Capturing Rhynchophorus palmarum (Coleoptera: Curculionidae)

2020 ◽  
Vol 113 (6) ◽  
pp. 3028-3031
Author(s):  
Ivan Milosavljević ◽  
Christina D Hoddle ◽  
Agenor Mafra-Neto ◽  
Francesc Gómez-Marco ◽  
Mark S Hoddle
Keyword(s):  
Canary Islands ◽  
Digital Video ◽  
Video Data ◽  
Retention Rates ◽  
Digital Data ◽  
San Diego County ◽  
Diel Activity ◽  
Video Cameras ◽  
Phoenix Canariensis ◽  
Rhynchophorus Palmarum

Abstract The efficacies of two trap types, bucket and Picusan traps, for capturing and retaining Rhynchophorus palmarum (L.), an invasive palm pest responsible for killing thousands of ornamental Canary Islands date palms (Phoenix canariensis Chabaud [Arecales: Arecaceae]) in San Diego County, CA, were compared. Digital video data were analyzed to determine how R. palmarum behavior toward each trap type affected capture and retention rates. Videography was conducted 24 h/d, 7 d/wk, for more than 7 mo resulting in 20,211 h of digital data for analysis. Weevil attraction to traps was observed only during daylight hours and no patterns in diel activity were found. Neither trap type tested captured 100% of weevils attracted to traps. Bucket traps suspended 1.5 m above the ground attracted 30% more weevils than ground deployed Picusan traps. Of those weevils attracted to bucket traps, 89% entered, 82% escaped, and 18% that entered traps were retained. Weevils that were not retained spent an average of 19 min 20 s entering and exiting entry holes and walking and flying around the bucket trap. By contrast, Picusan traps captured 89% of weevils that entered the trap. The time between weevils arriving (via walking or flight) on the sides of the Picusan trap and retention in the trap ranged between 90 and 376 s. These visual observations suggest that Picusan traps are more efficient than bucket traps for R. palmarum capture.

The value of digital video data for qualitative social work research: A narrative review

2017 ◽  
Vol 18 (3) ◽  
pp. 382-396 ◽  
Author(s):  
Jenn Miller Scarnato
Keyword(s):  
Social Work ◽  
Digital Video ◽  
Research Process ◽  
Video Data ◽  
Narrative Review ◽  
Participatory Action ◽  
Great Opportunity ◽  
Social Work Research ◽  
The Social ◽  
Interactive Nature

This study evaluates the value of digital video data in qualitative social work research at each stage of the research process. Through an analytic narrative review of the social work literature and related social sciences fields, the article argues that video data are under-utilized in social work research despite great opportunity to enhance the research process and articulate with social work values in the research encounter. The unique contributions of video data in the collection, analysis, and dissemination stages of research are considered, along with a brief discussion of the interactive nature of these stages in participatory action research designs that train participants in media production. The added benefits that video affords research participants as well as the unique challenges and limitations of video-based research design are reviewed and evaluated in relation to the social work profession. Social workers are called upon to embrace video data in qualitative research to produce critical counter narratives that combat harmful misrepresentations of disenfranchised populations and thereby advance the profession’s mission and values.

Automated detection of orbital debris in digital video data from a telescope

2004 ◽  
Vol 54 (6) ◽  
pp. 455-461
Author(s):  
Thomas J. Hebert ◽  
John Africano ◽  
Gene Stansbery
Keyword(s):  
Digital Video ◽  
Orbital Debris ◽  
Automated Detection ◽  
Video Data
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