varunr14/newsummary huggingface dataset:
Objective Visually induced motion sickness and increased postural sway are two adverse side effects that may occur when viewing motion stimuli . However whether these effects are elevated to a greater extent when viewing stereoscopic 3D motion stimuli compared to 2D stimuli on a TV screen has not been investigated under controlled circumstances . Therefore this study aimed at investigating VIMS and postural sway before during and directly after viewing 2D and 3D motion stimuli on a commonly available TV screen . Method 16 Participants were exposed to an aviation documentary shown in 2D and in 3D on separate occasions . Before during and after exposure VIMS and postural sway were measured . VIMS was quantified by a rating scale giving a single number and by a multi symptom questionnaire that assessed multiple VIMS symptoms separately . Sway path length standard deviations and short range and long range scaling components of the center of pressure were calculated as measures of postural sway . Results VIMS symptom severity as obtained with the single rating scale did not show a significant increase to either 2D or 3D exposure . The multi symptom questionnaire did reveal significant increases in VIMS symptom severity to both 2D and 3D exposure . However VIMS was not significantly more increased in case of 3D exposure compared to 2D exposure . All postural sway measures increased significantly as a result of exposure . None of the postural sway measures was differentially affected to 3D as compared to 2D exposure . Conclusion Viewing 3D motion stimuli did not cause more serious VIMS symptoms compared to viewing motion stimuli in 2D . We attribute this lack of difference to the fact that the 3D effects in this documentary were optimized for viewing in a cinema the projection on the TV screen thus causing quarantining of the visual input . The increase in postural sway irrespective of image type may reflect exploratory behavior allowing the participant to gain more information about self orientation with respect to the virtual environment . 


Summary: Effect of 2D and 3D viewing on visually induced motion sickness VIMS and postural sway was studied. Viewing 2D and 3D stimuli both caused significant but equal increases in postural sway. Viewing 3D stimuli did not clearly induce more VIMS symptoms compared to viewing 2D. Quarantining is proposed to underlie the observation that 3D did not induce more sickness than 2D.
Currently more and more mobile terminals embed a number of sensors and generate massive data . Effective utilization to such information can enable people to get more personalized services and also help service providers to sell their products accurately . As the information may contain privacy information of people they are typically encrypted before transmitted to the service providers . This however significantly limits the usability of data due to the difficulty of searching over the encrypted data . To address the above issues in this paper we first leverage the secure kNN technique to propose an efficient and privacy preserving multi feature search scheme for mobile sensing . Furthermore we propose an extended scheme which can personalize query based on the historical search information and return more accurate result . Using analysis we prove the security of the proposed scheme on privacy protection of index and trapdoor and unlinkability of trapdoor . Via extensive experiment on real world cloud systems we validate the performance of the proposed scheme in terms of functionalities computation and communication overhead . 


Summary: We propose a secure multi feature search scheme with low cost on the mobile terminals. We propose an extended scheme to personalize query based on historical search information. We prove the security of the proposed scheme on privacy protection of index and trapdoor and unlinkability of trapdoor.
A scalable video coding server can simultaneously provide a single bitstream with a fixed maximum service layer for different kinds of devices having different memory capacity network bandwidth and CPU performance requirements . An efficient hybrid 3D video service scheme is proposed without violation of the SVC standard technology for multiple transmission paths . A dynamic local disparity vector estimation algorithm is used to reflect the motion shift component between stereo views in the inter layer prediction stage of the SVC encoder . To improve the coding efficiency an adaptive search scheme based on distortion rates between corresponding and reference macroblocks is used . Based on experimental results up to 1.41dB of quality improvement using JSVM 9.19 reference software is verified . 


Summary: Field An efficient scheme for hybrid 3D video service technology. Core Algorithm An adaptive search range control mechanism for inter layer prediction. Implementation JSVM 9.19 reference software with standard sequences. Performance Up to 1.41dB of quality improvement with some bit saving. Applications Hybrid broadcasting systems for next generation TV technology.
A characterization for spatial Pythagorean hodograph curves of degree 7 with rotation minimizing Euler Rodrigues frames is determined in terms of one real and two complex constraints on the curve coefficients . These curves can interpolate initial final positions and and orientational frames and so as to define a rational rotation minimizing rigid body motion . Two residual free parameters that determine the magnitudes of the end derivatives are available for optimizing shape properties of the interpolant . This improves upon existing algorithms for quintic PH curves with rational rotation minimizing frames which offer no residual freedoms . Moreover the degree 7 PH curves with rotation minimizing ERFs are capable of interpolating motion data for which the RRMF quintics do not admit real solutions . Although these interpolants are of higher degree than the RRMF quintics their rotation minimizing frames are actually of lower degree since they coincide with the ERF . This novel construction of rational rotation minimizing motions may prove useful in applications such as computer animation geometric sweep operations and robot trajectory planning . 


Summary: A characterization of degree 7 PH curves with rotation minimizing Euler Rodrigues frames is developed. The characterization is used to formulate a system of equations for interpolating initial final positions and orientations of a rigid body by a rational rotation minimizing motion. The system incorporates two free parameters for shape optimization of the solutions. Solutions exist for data sets that admit no RRMF quintic interpolants. Although these curves are of slightly higher degree their rational rotation minimizing frames are of lower degree than for RRMF quintics.
The development of mobile devices nowadays shows an increasing trend toward interacting with 3D digital content on a 2D touch screen . However many issues regarding the appropriateness of the control mode require further exploration . The experimental design in this study designates displays of two sizes five inches and seven inches with three groups of hand gestures controlling the X Y and Z axis respectively . The three groups of gestures are compared in terms of how they interact with the 3D content . In the experiment 30 adult research subjects twice completed a task that involved rotating three 3D immersive heritage models . Their characteristics completion time subjective evaluation and frequency of gesture change were measured and examined . The results from the experiment and the statistics from a two way Analysis of Variance indicate the display size and the task completion time are inversely related . Under the effect of the Control Display ratio using a smaller display results in a shorter completion time while using a larger display results in a longer completion time tasks with obvious characteristics for the 3D objects require a shorter time to complete but those with no obvious characteristics require more time and using familiar hand gestures leads to a shorter task completion time while using unfamiliar hand gestures leads to a longer completion time . The findings of this study show that the Control Display ratio is an important factor that affects the operational performance of the 3D immersive heritage model s rotation tasks completed with hand gestures on small displays . In addition adaptability and familiarity should be taken into consideration when introducing new hand gestures . Hence the suggestions in this study constitute important guidelines for museums designing technology for the interaction between mobile devices and 3D immersive heritage models . 


Summary: The display size and the task completion time are inversely related. Using a smaller display results in a shorter completion time. Tasks with obvious characteristics for the 3D objects require a shorter time to complete. Using familiar hand gestures leads to a shorter task completion time. The Control Display ratio is an important factor that affects the performance of the 3D rotation tasks. Adaptability and familiarity should be taken into consideration when introducing new hand gestures.
The massive integration of renewable energy sources in the power grid ecosystem with the aim of reducing carbon emissions must cope with their intrinsically intermittent and unpredictable nature . Therefore the grid must improve its capability of controlling the energy demand by adapting the power consumption curve to match the trend of green energy generation . This could be done by scheduling the activities of deferrable and or interruptible electrical appliances . However communicating the users needs about the usage of their appliances also leaks sensitive information about their habits and lifestyles thus arising privacy concerns . This paper proposes a framework to allow the coordination of energy consumption without compromising the privacy of the users the service requests generated by the domestic appliances are divided into crypto shares using Shamir Secret Sharing scheme and collected through an anonymous routing protocol by a set of schedulers which schedule the requests by directly operating on the shares . We discuss the security guarantees provided by our proposed infrastructure and evaluate its performance comparing it with the optimal scheduling obtained by means of an Integer Linear Programming formulation . 


Summary: We design a protocol for scheduling appliances when renewable energy is available. User identities and appliance consumption patterns are not exposed to the schedulers. We provide formal proofs of the security guarantees of the proposed protocol. The privacy friendly scheduler yields a scheduling delay similar to the optimal one.
This paper focuses on the application of structural topology optimisation technique to design steel perforated I sections as a first attempt to replace the traditional cellular beams and better understand the mechanisms involved when subjected to bending and shear actions . An optimum web opening configuration is suggested based on the results of parametric studies . A FE analysis is further employed to determine the performance of the optimised beam in comparison to the conventional widely used cellular type beam . It is found that the optimised beam overperforms in terms of load carrying capacities deformations and stress intensities . Barriers to the implementation of the topology optimisation technique to the routine design of beam web are highlighted . 


Summary: Structural topology optimisation to design steel I section beam web openings. Numerical analysis and parametric study of local beam sections. Initial suggestion of web opening shapes by the optimal topology. Shear buckling characteristics of optimised beam webs using a nonlinear FEA. Barriers to the implementation of the topology optimisation techniques.
The present work describes indium zinc oxide sputtering depositions onto several types of papers using radio frequency and direct current sputtering with a ceramic IZO target . The electrical and optical properties of the resulting materials were optimized by studying the argon and oxygen gas flow rates and the sputtering power effects . At optimal deposition conditions thin films of IZO were achieved with a low sheet resistance and an optical transmittance of ca . 80 in the visible spectrum range . These materials retained these properties for more than 8months . Electrochromic devices with several configurations were built with those conductive papers and life cycling and contrast were measured for the ECDs . These devices exhibited a very good color contrast and electrochromic cyclability up to 30 000 redox cycles . 


Summary: We deposited IZO by DC Sputtering on heat sensitive substrates such as paper. The materials displayed high electric conductivity and optical transparency. Electrochromic materials were deposited using screen printing. Solid state electrochromic devices were assembled showing an excellent performance.
Several methods for collecting psychophysiological data from humans have been developed including galvanic skin response GSR electromyography EMG electroencephalography EEG and the electrocardiogram ECG . This paper proposes a feature extraction method for emotion recognition in EEG based human brain signals. In this research emotions were elicited from subjects using emotion related stimuli from the International Affective Picture System IAPS database. We selected four kinds of emotional stimuli in the arousal valence domain. Raw brain signals were preprocessed using independent component analysis ICA to remove artifacts. We introduced a feature extraction method using LPP and implemented a benchmark based on statistical and frequency domain features. The LPP based results show the highest accuracy when using SVM in the all selected feature set. The results also provide evidence and suggest a way for further developing a more specialized emotion recognition system using brain signals. 


Summary: The use of stimulation strategy may help to enhance the emotion recognition from human brain signals. The late positive potential LPP was analyzed in order to select the features for emotion classification. The LPP based electroencephalography EEG features were selected under multiple frequency bands. The emotion classification was performed by using support vector machine SVM and k nearest neighbors KNN . These findings offer experimental evidence that the LPP components may be possible features for emotion recognition.
Menus are commonly employed within user interfaces but are not necessarily a suitable solution for emerging new contexts . For instance for in vehicle displays the use of visually oriented menus creates a clear distraction burden . To investigate how the visual demand of menus varied as a function of their breadth depth and structure a study was conducted following the ISO occlusion protocol . Participants were asked to find and select target words on a touchscreen by navigating menus of varying breadths and depths when options were arranged either in alphabetical order or randomly . Tasks were achieved either with full vision or whilst wearing occlusion goggles enabling only brief opportunities to visually access the touchscreen . Preliminary equations were derived from the data indicating fundamentally different relationships for the visual demand of an interface dependent on whether anticipation can be used during the task . For structured menus the visual demand was a logarithmic function of the breadth of the menus whereas for unstructured menus the relationship was quadratic . Moreover results indicated that for structured menus breadth was favoured over depth as the lowest visual demand was associated with 16 3 menu hierarchies . Conversely for unstructured menus compromise hierarchies were associated with the least visual demand . Conclusions are drawn regarding the setting of boundary conditions for alternative menu structures for use within vehicles . 


Summary: We investigate the design of menu hierarchies for in vehicle user interfaces. Breadth is favoured over depth for structured menus. Breadth and depth are equally favoured for unstructured menus. Guidelines are given regarding acceptable combinations of breadth and depth for menus used in a driving context.
We present an efficient adaptive refinement procedure that preserves analysis suitability of the T mesh that is the linear independence of the T spline blending functions . We prove analysis suitability of the overlays and boundedness of their cardinalities nestedness of the generated T spline spaces and linear computational complexity of the refinement procedure in terms of the number of marked and generated mesh elements . 


Summary: We present a new algorithm for the adaptive refinement of T meshes. The algorithm preserves Analysis Suitability and produces nested T spline spaces. Any two generated meshes have an analysis suitable overlay. We prove linear complexity of the refinement algorithm.
This paper proposes a fast mode decision algorithm for 3D High Efficiency Video Coding depth intra coding . In the current 3D HEVC design it is observed that for most of the cases full rate distortion cost search of Bi Partition mode could be skipped since most coding units of depth map are very flat or smooth while Bi Partition modes are designed for CUs with edge or sharp transition . Using the rough RD cost value calculated by HEVC Rough Mode Decision as a selection threshold we propose a fast Bi Partition modes selection algorithm to speed up the encoding process . The test result for the proposed fast algorithm reports a 34.4 encoding time saving with a 0.3 bitrate increase on synthesized views for the All Intra test case and negligible impact under the random access test case . Moreover by simply varying the selection threshold we can make a tradeoff between encoding time saving and bitrate loss based on the requirement of different applications . 


Summary: We can skip most of Bi Partition mode full RD cost value calculation. We use the Smallest Rough RD Cost Value SRCV to speedup the encoder. More than 34 encoding time saving is achieved under all intra configuration. Small encoding time saving is also achieved under random access configuration. Flexibility is provided to tradeoff between encoding time saving and BD rate loss.
The internal orientation of fossil mass occurrences can be exploited as useful source of information about their primary depositional conditions. A series of studies using different kinds of fossils especially those with elongated shape e.g. elongated gastropods deal with their orientation and the subsequent reconstruction of the depositional conditions e.g. paleocurrents and transport mechanisms . However disk shaped fossils like planispiral cephalopods or gastropods were used up to now with caution for interpreting paleocurrents. Moreover most studies just deal with the topmost surface of such mass occurrences due to the easier accessibility. Within this study a new method for three dimensional reconstruction of the internal structure of a fossil mass occurrence and the subsequent calculation of its spatial shell orientation is established. A 234 million years old Carnian Triassic monospecific mass occurrence of the ammonoid Kasimlarceltites krystyni from the Taurus Mountains in Turkey embedded in limestone is used for this pilot study. Therefore a 150 45 140 mm3 block of the ammonoid bearing limestone bed has been grinded to 70 slices with a distance of 2 mm between each slice. By using a semi automatic region growing algorithm of the 3D visualization software Amira ammonoids of a part of this mass occurrence were segmented and a 3D model reconstructed. Landmarks trigonometric and vector based calculations were used to compute the diameters and the spatial orientation of each ammonoid. The spatial shell orientation was characterized by dip and dip direction and aperture direction of the longitudinal axis as well as by dip and azimuth of an imaginary sagittal plane through each ammonoid. The exact spatial shell orientation was determined for a sample of 675 ammonoids and their statistical orientation analyzed i.e. NW SE . The study combines classical orientation analysis with modern 3D visualization techniques and establishes a novel spatial orientation analyzing method which can be adapted to any kind of abundant solid matter. 


Summary: First 3D visualization of an ammonoid mass occurrence from the Upper Triassic. Classical orientation analyses combined with modern 3D visualization techniques. A modern method as template for any kind of abundant fossil or solid matter. Starting points for a discussion on the orientation in fossil deposits during various environmental conditions.
In this paper a new data hiding method is proposed based on secret sharing scheme with the DNA exclusive or operator for color images . The DNA XOR secret sharing scheme uses a DNA XOR truth table . Each input value of truth table is evaluated and according to that evaluation highest PSNR value is selected for secret sharing . These selected values are embedded into cover image . Cover image is used as an encryption key in the proposed secret sharing process . In this study the hidden data are divided into three secret shares and embedded into the red green and blue channels of a cover image respectively . In here the DNA XOR operator has been firstly used as secret sharing operator in data hiding literature . Our proposed data hiding method was compared with previous methods . The comparison of these methods shows that our proposed method gives the most successful result . 


Summary: We present a new probabilistic secret sharing scheme by using the DNA XOR n n . We suggest a new reversible data hiding algorithm based on the probabilistic secret sharing scheme for color images. We create an optimum data hiding algorithm by using the DNA XOR secret sharing scheme.
In this paper we present a new approach for generic 3D shape retrieval based on a mesh partitioning scheme. Our method combines a mesh global description and mesh partition descriptions to represent a 3D shape. The partitioning is useful because it helps us to extract additional information in a more local sense. Thus part descriptions can mitigate the semantic gap imposed by global description methods. We propose to find spatial agglomerations of local features to generate mesh partitions. Hence the definition of a distance function is stated as an optimization problem to find the best match between two shape representations. We show that mesh partitions are representative and therefore it helps to improve the effectiveness in retrieval tasks. We present exhaustive experimentation using the SHREC 09 Generic Shape Retrieval Benchmark. 


Summary: We propose a simple and effective partitioning algorithm for 3D meshes. The use of part descriptions enhances the use of global descriptors. We define a distance as an optimization problem including both linear and quadratic constraints. Our experiments show that the partitioning algorithm has a great influence in the final effectiveness of retrieval tasks.