scholarly journals From 2D to VR Film: A Research on the Load of Different Cutting Rates Based on EEG Data Processing

Information ◽  
2021 ◽  
Vol 12 (3) ◽  
pp. 130
Author(s):  
Feng Tian ◽  
Yan Zhang ◽  
Yingjie Li

Focusing on virtual reality (VR) and film cutting, this study compared and evaluated the effect of visual mode (2D, VR) and cutting rate (fast, medium, slow) on a load, to make an attempt for VR research to enter the cognitive field. This study uses a 2 × 3 experimental research design. Forty participants were divided into one of two groups randomly and watched films with three cutting rates. The subjective and objective data were collected during the experiment. The objective results confirm that VR films bring more powerful alpha, beta, theta wave activities, and bring a greater load. The subjective results confirm that the fast cutting rate brings a greater load. These results provide a theoretical support for further exploring the evaluation methods and standards of VR films and improving the viewing experience in the future.

2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
Hongli Ren ◽  
Yunpeng Du ◽  
Xiaofen Feng ◽  
Jiamin Pu ◽  
Xiaoyan Xiang

Virtual reality (VR) is one of the hot spots in the computer network world in recent years, which has attracted more and more people’s attention. This study mainly explores the effect of mitigating the psychological trauma of adult burn patients based on the VR technology of smart medical treatment. First, the EEG data are sent to the data processing module through a wireless protocol; then, the data processing module denoises the EEG data and performs feature extraction and feedback parameter calculation; after that, these parameters will be sent to the VR interaction engine; based on this, these parameters change the VR scene to capture and reflect the physiological activities of the patient’s brain in real time; finally, the patient uses the VR scene content presented by the real-time feedback of the captured EEG signal as a guide to making self-adjustment in time, and the electrical signal of captured brain at this time is again transmitted to the next work cycle and continues to feed back and present new VR interactive scenes to guide and intervene in the patient’s self-regulation behavior. The VR feedback training module is responsible for receiving the characteristic data calculated from the EEG acquisition and processing module and converts it into parameter variables that control the VR intervention system. The system user adjusts the state according to the feedback information displayed in the VR scene and generates new EEG signals to promote the realization of self-adjustment. The biofeedback training based on EEG feeds back the intuitive EEG state to the patient, prompting them to learn how to realize self-regulation and achieve the purpose of adjusting the level of mental health. The degree of itching and pain in the VR treatment group was alleviated, and compared with the normal training treatment results, it was statistically significant ( P > 0.05 ). This study has a positive effect on the psychological intervention of patients with facial injuries.


1995 ◽  
pp. 323-328
Author(s):  
Richard X. Tang ◽  
Kouichi Sugita ◽  
Walter J. Freeman ◽  
Sven Jakubith
Keyword(s):  

2021 ◽  
Author(s):  
Shivani Mulekar

Sanctuary is a documentary film in virtual reality (VR). The film uses 360-camera technology to offer a sensory immersive viewing experience. The film attempts to transcend the borders of filmmaking by merging new 360-camera technology and a nonlinear form of storytelling. The film is an observational piece. 360-degree videos are an emerging technology, which offers the viewer a sensory, immersive experience in virtual reality. Influenced by the 360-panoramic mural paintings created in 1860s, the use of the 360-camera breaks away from the syntax of documentary filmmaking and gives the audience an active role in the film-viewing experience. It breaks the traditional semantics of filmmaking and sets new rules of viewing which are personal and unique to each viewer. Sanctuary documents the Juhasz family, which has been living in a church since November 2014. The film is an eight-minute experience that gives the audience a 360- degree glimpse into the Juhasz family’s life and their living conditions. The film is presented as an installation, using Samsung’s Gear VR as the exhibition technology.


Author(s):  
Valeriya Pinchuk

For the purpose of defining the regularities of CWF combustion in the air, we have conducted experimental research into ignition and combustion of the fuels produced from coal of different metamorphic ranks. The studies allowed to obtain time-temperature correlations describing CWF ignition and combustion, to determine the stages of the combustion process, to define the structure of the ash coating, and the degree of the fuel combustible mass burnout. The present paper analyses the results of experimental research into the regularities underlying the processes of ignition and combustion for CWF (fat coal), CWF (non-baking coal), and CWF (anthracite).It was established that the oven medium temperature affects the duration of every CWF combustion stage, which was substantiated by the relevant dependencies resulting from the experimental data processing.


2020 ◽  
Vol 40 (3) ◽  
pp. 116-123
Author(s):  
Zoran Šverko ◽  
Ivan Markovinović ◽  
Miroslav Vrankić ◽  
Saša Vlahinić

In this paper, EEG data processing was conducted in order to define the parameters for neurofeedback. A new survey was conducted based on a brief review of previous research. Two groups of participants were chosen: ADHD (3) and nonADHD (14). The main part of this study includes EEG signal data pre-processing and processing. We have outlined statistical features of observed EEG signals such as mean value, grand-mean value and their ratios. It can be concluded that an increase in grand-mean values of power theta-low beta ratio on Cz electrode gives confirmation of previous research. The value of alpha-delta power ratio higher than 1 on C3, Cz, P3, Pz, P4 in ADHD group is proposed as a new approach to classification. Based on these conclusions we will design a neurofeedback protocol as a continuation of this work.


Author(s):  
Shengchun Liu ◽  
Ziteng Dong ◽  
Wenkai Zhang

Both theoretical and experimental research on CO2 physical characteristics and pool boiling heat transfer are taken in this paper. It is analyzed that CO2 pool boiling heat transfer outside the screwed and smooth tube based on experimental study. It is resulted with the relationship between heat transfer coefficient, evaporating pressure and the heat flux. It is also indicated the enhancement factors of three screwed tube compared with smooth tube. The results provides a basis for promoting CO2 heat transfer enhancement, and also provides a theoretical support in engineering.


Author(s):  
Tuty Novelindah Purba

In general, this study was to determine the application of the quantum teaching-learning method with the discussion method in improving mathematics learning outcomes for seventh-grade students of SMP Negeri 2 Dolok Pardamean, Simalungun Regency. This study used experimental research on grade VII students of SMP Negeri 2 Dolok Pardamean, Simalungun Regency. The research was conducted by taking samples from two classes, namely the experimental class (15 students per class) and the control class (15 students per class). The sample categories were taken from two of four parallel categories that were determined randomly (random category samples). The tool used in this study was a testing technique in the form of empirically verified paper questions. Data analysis used the t-test, first testing for normality and homogeneity. Based on the results of data processing, it was known that the application of the quantum teaching-learning model with the discussion method had a significant effect on increasing mathematics learning outcomes obtained.


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