scholarly journals Video Recording Equipment

1960 ◽  
Vol 14 (6) ◽  
pp. 274-278
Author(s):  
Fumihiko Sato
2011 ◽  
Vol 6 (4) ◽  
pp. 179-185 ◽  
Author(s):  
Michelle O'Reilly ◽  
Nicola Parker ◽  
Ian Hutchby

Using video to facilitate data collection has become increasingly common in health research. Using video in research, however, does raise additional ethical concerns. In this paper we utilize family therapy data to provide empirical evidence of how recording equipment is treated. We show that families made a distinction between what was observed through the video by the reflecting team and what was being recorded onto videotape. We show that all parties actively negotiated what should and should not go ‘on the record’, with particular attention to sensitive topics and the responsibility of the therapist. Our findings have important implications for both clinical professionals and researchers using video data. We maintain that informed consent should be an ongoing process and with this in mind we present some arguments pertaining to the current debates in this field of health-care practice.


2003 ◽  
Vol 1855 (1) ◽  
pp. 97-104 ◽  
Author(s):  
Christopher Strong ◽  
Scott Lowry ◽  
Peter McCarthy

An innovative application of time-lapse video recording is used to assist in an evaluation of a highway safety improvement. The improvement is an icy-curve warning system near Fredonyer Summit in northern California that activates real-time motorist warnings via extinguishable message signs, based on weather readings collected from road weather information systems. A measure of effectiveness is whether motorist speed is reduced as a result of real-time warnings to drivers. Why indirect speed measurement with video was preferred over radar for this case is discussed, as is how specific methodological issues related to the custom-built equipment, including camera location and orientation, distance benchmarking, and data collection and reduction. Theoretical and empirical accuracy measurements show that the video surveillance trailers yield results comparable to radar and, hence, would be applicable for studies in which speed change is measured. Because this particular technology had not been used previously, several lessons are documented that may help determine where and how similar equipment may be optimally used in future studies.


2020 ◽  
Vol 6 (12) ◽  
pp. 57-65
Author(s):  
Liubov Protsyk ◽  

The article studies of criminals who have committed unlawful acts against children. In particular, the article examines the behavioral characteristics of criminals who have committed offences described in articles 152-156, 301, 304 the Criminal Code of Ukraine, namely: infringe on sexual freedom and sexual inviolability of a child; pornography manufacture, sale or distribution; involvement of minors into criminal activities, drunkenness, begging, gambling. The most common features of criminals who have infringed on sexual freedom and sexual inviolability of a child are: egoism, often turns into egocentrism, when an individual act only to fulfill his/her own interests, desires and inclinations. Criminals by chance and persistent (“evil”) criminals are distinguished. Crimes by chance are predominantly committed under alcoholic intoxication or drug agitation. The persistent type is characterized by persistent aggression, the tendency to resolve conflicts with physical strength, cruelty. People infringing on sexual freedom and sexual inviolability of a child are often also characterized by mental abnormalities of varying degrees. These abnormalities are also revealed in peculiarities of criminals’ value orientations: norms governing sexual relations, humanistic values ​​are ignored by them. Criminals involved in pornography manufacture, sale or distribution of are divided into: pornography authors, manufacturers or distributors. It is almost impossible to detect such criminals; they do not show their sexual deviations in everyday life. A random thing in a frame can become a clue revealing such criminals. Pornography manufacturers have some knowledge and skills in computer technology and in printing industry, own audio and video recording equipment. As for pornography distributors, such people, as a rule, do not suffer from any sexual or mental abnormalities, do not receive obvious satisfaction from being engaged in such activities, and consider their activities only as a job, a way of money earning. As the court practice shows, minors are involved in criminal activities mainly by their family members (parents, siblings, uncles or aunts, and others). Children see criminal examples - drunkenness, fights, begging, etc. - and learn such behavior, consider them as normal or are afraid to complain, so that, join criminals. People consistently involving minors into criminal activities are characterized by developed antisocial features, deformed moral and legal consciousness. The presented criminal types and their behavior are not comprehensive; the article presents only overview.


Author(s):  
G. J. Thomas ◽  
W. Bauer

In previous studies of high dose He implantation of metals, observations of the resulting surface deformation were made after specific dose levels were attained. The present work describes a recently constructed system which allows scanning electron microscopy observation during implantation. A number of advantages can be gained by this approach. First, considerably more data can be obtained on a given sample so that, for example, the precise dose dependence of surface deformation can be determined. The technique also allows direct observation of deformation either above or below room temperature andin addition, quantitative information on the rates of blister formation and growth can be obtained. The rapidity with which surface features develop during implantation requires continuous and rapid storage of the sample image. Commercially available video recording equipment, with appropriate modification, has been used for this purpose.In preliminary studies, a comparison has been made of surface deformation due to He implantation of a hydride (TiH2), annealed Ti metal, and cold worked Ti.


1997 ◽  
Vol 1578 (1) ◽  
pp. 127-131 ◽  
Author(s):  
Wayne Pein

Bicyclist crossing time from a full stop was measured using video recording equipment at 16 diverse trail-roadway intersections (two to six lanes, stop or signal controlled, divided or undivided) of the Pinellas Trail in Pinellas County, Florida. A total of 442 bicyclists (single individuals or randomly selected individuals from a group) were timed. The cruising speed of 65 bicyclists was also determined. A linear regression model was fit to the time and crossing-distance data. A linear regression was also fit to eight 85th percentile crossing-time points that were calculated from grouped raw data. Using kinematic physics, in which bicycle acceleration and intersection crossing velocity are variables, a theoretical equation was derived to predict bicyclist crossing time for any distance. This derived equation is a linear function of distance, so the regression coefficients could then be used to estimate bicyclist crossing velocity and acceleration on the Pinellas Trail. These estimated values for bicyclist acceleration and intersection crossing velocity compare favorably with the scant available data from foreign and domestic sources. Thus, the crossing-time prediction equation can be a useful tool when designing intersections for bicyclists, with application in signal timing and crossing-sight distance calculations.


1989 ◽  
Vol 33 (16) ◽  
pp. 1072-1076
Author(s):  
William A. Wheeler ◽  
Jody L. Toquam

Safe and efficient use of modern technology often hinges upon the ability of persons operating these systems to perform effectively under a wide variety of conditions. This paper describes several tools developed to investigate the influence of psycho-social variables on cognitive performance under stressful conditions. These tools include indirect, non-obtrusive video recording equipment to capture real-time cognitive behavior, and a several multi-dimensional and multi-method techniques to measure cognitive ability and psycho-social conditions. These techniques are used to bridge the gap between basic laboratory research and field observation.


1979 ◽  
Vol 18 (12) ◽  
pp. 901-902
Author(s):  
A. D. Kalyuzhnyi ◽  
O. V. Shul'ga ◽  
D. M. Karpinos ◽  
V. G. Zil'berberg

2021 ◽  
Author(s):  
Samuel W Centanni ◽  
Alexander CW Smith

With the recent development and rapidly accelerating adoption of machine-learning based rodent behavioral tracking tools such as DeepLabCut, one common variable that can impact the quality and consistency of results is the camera system. Many experimenters use webcams, GoPros, or other commercially available cameras that are not only relatively expensive, but offer very little flexibility over recording parameters. These cameras are not optimized for recording many types of behavioral experiments, which can lead to suboptimal video quality. Furthermore, it is a challenge, if not impossible, to synchronize multiple cameras with each other, or to send/receive a trigger with external signals such as a TTL pulse or a network connection. We have developed an affordable ecosystem of behavioral recording equipment, PiRATeMC (Pi-based Remote Acquisition Technology for Motion Capture), that relies on Raspberry Pi Camera Boards that are ideal for recording in both bright light, low light, and dark conditions under infrared light. PiRATeMC offers users control over nearly every recording parameter. This setup can easily be scaled up and synchronously controlled in clusters via a self-contained network to record a large number of simultaneous behavioral sessions without burdening institutional network infrastructure. Furthermore, the Raspberry Pi is an excellent platform for novice and inexperienced programmers interested in using an open-source recording system, with a large online community that is very active in developing novel open-source tools. Moreover, it easily interfaces with Arduinos and other microcontrollers, allowing simple synchronization and interfacing of video recording with nearly any behavioral equipment using GPIO pins to send or receive 3.3V or 5V signals, I2C, or serial communication.


Author(s):  
Lina Lina ◽  
Jason Su ◽  
Daniel Ajienegoro

Advances in technology have made it easier to surveillance purpose by installing recording equipment that can be placed in certain strategic locations. The existence of this technology also brings changes in the analysis phase of video recordings and images that have been obtained. The processing of recorded videos no longer uses manual methods but can be done automatically using image processing and artificial intelligence algorithms. Based on the obtained video recordings, analysis can be carried out for surveillance purpose, object tracking, human activity recognition, etc. This paper discusses the development of an automatic human activity recognition system based on video recordings using Multilayer Perceptron method. The recorded video will be transformed into a collection of images which are then processed with the Multilayer Perceptron algorithm for the recognition process. The output of the designed system is the recognition of activities carried out by humans at a certain time and saved them in a log with a certain timestamp. In this paper, there are five types of human activities that can be recognized automatically by the system, namely raising hands, clapping, standing, sitting, and studying. The experimental results show that the accuracy rate of the proposed system achieved 97.45% for image datasets obtained freely from the internet, while 100% accuracy was obtained for image datasets collected with IP Cameras. Keywords: Human activity recognition; video recording; Multilayer PerceptronAbstrakKemajuan teknologi memungkinkan kegiatan pengawasan terhadap lingkungan menjadi lebih mudah yaitu dengan melakukan pemasangan peralatan rekam yang dapat ditempatkan pada lokasi-lokasi strategis tertentu. Keberadaan peralatan teknologi ini juga membawa perubahan dalam proses analisis terhadap rekaman video maupun gambar yang telah didapatkan. Proses pengolahan terhadap video rekaman tidak lagi menggunakan cara manual, namun dapat dilakukan secara otomatis dengan menggunakan teknologi pengolahan citra dan kecerdasan buatan. Berdasarkan rekaman video maupun gambar yang diperoleh, analisis dapat dilakukan untuk mengawasi keamanan lokasi, mencatat perubahan kondisi objek tertentu, mengenali aktivitas manusia pada saat tertentu, dan lain sebagainya. Makalah ini membahas pengembangan sebuah sistem pengenalan aktivitas manusia secara otomatis berdasarkan rekaman video menggunakan metode Multilayer Perceptron. Rekaman video sebelumnya akan dicacah menjadi kumpulan citra yang kemudian diproses dengan algoritma Multilayer Perceptron untuk proses pengenalannya. Luaran dari sistem aplikasi yang dirancang berupa pengenalan aktivitas yang dilakukan manusia pada waktu tertentu dan pencatatan aktivitas tersebut dalam sebuah log dengan timestamp tertentu. Dalam makalah ini, terdapat lima jenis aktivitas manusia yang dapat dikenali secara otomatis oleh sistem, yaitu mengangkat tangan, bertepuk tangan, berdiri, duduk, dan belajar. Hasil pengujian menunjukkan bahwa keberhasilan pendeteksian aktivitas manusia dengan metode Multilayer Perceptron memiliki tingkat akurasi 97.45% untuk dataset citra yang diperoleh secara bebas dari internet, sedangkan untuk dataset citra yang dikumpulkan dengan IP Camera memiliki tingkat akurasi sebesar 100%.


2014 ◽  
Vol 926-930 ◽  
pp. 3984-3987
Author(s):  
Xie Jie

This research attempts to apply the mean of video-feedback to the technology training of volleyball by means of the advanced video recording equipment, on the basis of multimedia technology, valuing the content, time frequency of feedback, to discuss effectiveness in volleyball’s training, this paper plans to improve the volleyball’s training methods and training quality, so as to provide a new thinking and theoretical basis. A comparison experiment is done and the result shows that 1 The training mean of video-feedback has played a certain role in improving students’ technical movement and mastering, enhancing the quality of training. It gave a full play the advantage of modern multimedia technology, advanced means, new approaches, and it can fully arouses student’s study enthusiasm, to make up for the deficiency of the traditional training method, in accordance with the time and the demand of social development.


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