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A method of gas-solid two-phase flow velocity measurement is presented based on double linear CCD camera and image cross-correlation algorithm, and it can be applied to cotton foreign fiber eliminating system. Firstly, gas-solid two phase flow velocity estimation principle is put forward with the double linear CCD camera. Then, aiming to the inaccurate problem of cotton flow velocity measurement using...
At present, it is projected that about 4 zettabytes (or 10**21 bytes) of electronic data are being generated per year by everything from underground physics experiments to retail transactions to security cameras to global positioning systems. In the U. S., major research programs are being funded to deal with big data in all five economic sectors (i.e., services, manufacturing, construction, agriculture...
We found out a problem that the non-diffraction wave was not completely removed in parallel phase-shifting digital holography (PPSDH) system using a polarization imaging camera. To solve this problem, we introduce an algorithm for compensating the reconstructed image, which can remove the residual non-diffraction wave. In the algorithm, the phase-shifted holograms generated by image reconstruction...
Depth-image-based rendering (DIBR) has attracted more and more attention as a method of virtual view rendering in three-dimensional video (3DV) applications. Many efforts have been dedicated to realize high-quality rendering, ranging from pre-process of the reference depth images to post-process of the virtual texture images. A DIBR method based on inverse mapping and depth-aided image inpainting...
The mental workload and task performance of drivers between direct and indirect driving systems are of interest to special vehicle designers. Four experiments were designed to investigate the way to lower mental workload and improve task performance. Different mental workload measured by heart rate, SpO2 (ox-hemoglobin saturation), EEG (electroencephalogram) and the NASA Task Loading Index workload...
An influential technique introduced by Debevec and Malik has become the de facto standard for recovering high dynamic range radiance maps from photographs and has been widely used in research and commercial systems for over a decade. However, we have discovered an important defect in the original algorithm that will make this technique often fail to produce reasonable results in the extremely bright...
The general focus of this paper concerns the development of telepresence within intelligent immersive environments. The overall aim is the development of a system that combines multiple audio and video feeds from geographically dispersed people into a single environment view, where sound appears to be linked to the appropriate visual source on a panoramic viewer based on the gaze of the user. More...
In order to solve the problem that Camera Link standard interface used by the current industrial camera and image acquisition card could be realized only by making use of special integrated circuit, field programmable gate array (FPGA ) of Virtex5 series—the latest product of Xilinx was used, and at the same time very high speed integrated circuits hardware description language (VHDL) programming...
In order to obtain the coefficients of the phase function with better fitting effect and accurate results, photometric correction is performed by the improved Lomme-Seeliger model with the lunar image from CCD stereo camera on Chang'E-1 satellite (CE-1) of China. By effective correction, the impact on image from the solar incidence angle (the incidence angle) and instrument viewing angle (the emission...
ABSTRACT Existential tinkering as a form of inquiry must be brought into the engineering curriculum at the university level, as well as into the education curricula in general, including early childhood education. This paper presents a methodology of education for people of all ages and abilities, including engineering education, through unstructured play, personal involvement (authenticity), expression,...
The number of finger vascular pattern datasets available for the research community is scarce, therefore a new finger vascular pattern dataset containing 1440 images is prsented. This dataset is unique in its kind as the images are of high resolution and have a known pixel density. Furthermore this is the first dataset which contains the age, gender and handedness of the participating volunteers as...
This paper will show how AUV and ROV can complement each other in a scientific mapping campaign in the Trondheim Fjord. To complete this survey, a multidisciplinary approach was necessary to adapt the industrial and military technology to identify and map object of interest (OOI) on the seafloor. NTNU AUR-Lab and FFI mobilized for a collaborative cruise with ROV Minerva equipped with: video camera,...
Interest point detectors are important components in a variety of computer vision systems. This paper demonstrates an automated virtual 3D environment for controlling and measuring detected interest points on 2D images in an accurate and rapid manner. Real-time affine transform tools enable easy implementation and full automation of complex scene evaluations without the time-cost of a manual setup...
This work presents the experimental results of the control methodology used to tackle the floating underwater manipulation aspects of the EU-FP7 TRIDENT project, whose main goal is to develop a multipurpose I-AUV (Intervention Autonomous Underwater Vehicle). In particular, the work focuses on the coordination aspects of the whole system, aimed at exploiting the high number of degrees of freedom that...
In this study, a mobile robot which can be used for bomb research and dispose of a bomb setup with a remote control has been designed and achieved. Also, a visual operator interface program has been written in Qt- Creator environment which supports different operating systems so as to carry out remote control and tracking the mobile robot. The mobile robot which has a high ability of mobility such...
The rough development of streamers has been studied by many and is reported well in literature. Here we will show the development of a point-plane streamer in artificial air (a mixture of 20% pure oxygen in pure nitrogen) in much better detail. This is done in a 16 cm point plane gap at pressures between 100 and 200 mbar. Positive high voltage pulses with amplitudes of 20 to 40 kV, rise times of 10...
Group audience responds collectively to a stimulus unlike an audience. Total group arousal is formed by exchanging emotional effects with surroundings. Empirical approaches are not enough by comparison to various theoretical approaches related to group arousal. Thus we have preceded the study for empirical group arousal measurement based on movement synchronization of group. At first, we measure that...
In this paper, we propose a new approach to depth map generation for multiview video system. Our goal is to improve 3D scene representation consistency by exchanging spatial information between all depth maps in multiview video. The presented algorithm mainly adopts Scale Invariant Feature Transform (SIFT) and jointly disparity and disparity estimation technique. This algorithm first uses the SIFT...
This study presents an upward-looking camera-based global localization scheme using the position and orientation of ceiling features. If the robot pose is unknown, the region-based ceiling features from the current image are matched to a pre-built feature map from the RBPF-based SLAM process. Then, the candidate areas of the real robot pose are set around the matched features. The candidates are represented...
This paper outlines a method for improving the precision of indirect time of flight range imaging cameras in high contrast scenes. Indirect time of flight cameras have potential applications in many fields including mobile robotics. However, current generation cameras are limited by their dynamic range. A method is proposed where, at the end of each measurement, the signal amplitude is compared to...
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