Top PDF Means and method of camera space manipulation

Means and method of camera space manipulation

Means and method of camera space manipulation

A means and method for camera space manipulation includes a manipulator arm extending from a base to an outward end. The arm is movable through a workspace to accomplish various tasks. One or more cameras are movably oriented towards the arm and work space to capture the arm and work space in what will be called camera space or camera vision. A visual cue is associated with the outward end of the manipulator arm. Additionally, a visual cue is associated with an object which is desired to be engaged by the manipulator arm or by what is held by the manipulator arm. A control device is connected to the camera or cameras and to the manipulator. According to identification and tracking of the visual cues in the camera space, the control device instructs appropriate motors to move the manipulator arm according to estimations for engagement
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EBK Means: A Clustering Technique based on Elbow Method and K Means in WSN

EBK Means: A Clustering Technique based on Elbow Method and K Means in WSN

WSN consist of hundreds of thousands of small and cost effective sensor nodes. Sensor nodes are used to sense the environmental or physiological parameters like temperature, pressure, etc. For the connectivity of the sensor nodes, they use wireless transceiver to send and receive the inter-node signals. Sensor nodes, because connect their selves wirelessly, use routing process to route the packet to make them reach from source to destination. These sensor nodes run on batteries and they carry a limited battery life. Clustering is the process of creating virtual sub-groups of the sensor nodes, which helps the sensor nodes to lower routing computations and to lower the size routing data. There is a wide space available for the research on energy efficient clustering algorithms for the WSNs. LEACH, PEGASIS and HEED are the popular energy efficient clustering protocols for WSNs. In this research, we are working on the development of a hybrid model using LEACH based energy efficient and K-means based quick clustering algorithms to produce a new cluster scheme for WSNs with dynamic selection of the number of the clusters automatically. In the proposed method, finding an optimum „k‟ value is performed by Elbow method and clustering is done by k-means algorithm, hence routing protocol LEACH which is a traditional energy efficient protocol takes the work ahead of sending data from the cluster heads to the base station. The results of simulation show that at the end of some certain part of running the proposed algorithm, at some point the marginal gain will drop dramatically and gives an angle in the graph. The correct „k‟ i.e. number of clusters is chosen at this point, hence the "elbow criterion".
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Detection of exoplanets by means of the Bump Detection Method

Detection of exoplanets by means of the Bump Detection Method

The scope of this paper is to determine how a transit of an exoplanet can be detected by means of the Bump Detection Method, given the light curve of its host star. First of all, a statistical model will be provided, whereafter the Bump Detection Method will be applied based on statistical significance testing. Second, performance simulations will be investigated, before applying the Bump Detection Method on the Kepler data. To en- hance the detection of exoplanets a linear filter will be applied to the data. Finally, the paper concludes with an analysis of the results retrieved from the application of the Bump Detection method in the Kepler data and recommendations for further research.
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Means and method of detection in chemical separation procedures

Means and method of detection in chemical separation procedures

comprised of one or more charged analytes which displace fluorescing ions where its constituent components separate to. Fluorescing ions of the same charge as the charged analyte components cause a displacement. The displacement results in the location of the separated components having a reduced fluorescence intensity to the remainder of the background. Detection of the lower fluorescence intensity areas can be visually, by photographic means and methods, or by automated laser scanning.

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System identification by means of a digital computer method.

System identification by means of a digital computer method.

This online database contains the full-text of PhD dissertations and Masters’ theses of University of Windsor students from 1954 forward. These documents are made available for personal[r]

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Means and method for ultrasonic measurement of material properties

Means and method for ultrasonic measurement of material properties

A field instrument for ultrasonic measurement of texture, stress and related material properties including but not limited to formability comprising: a portable housing including control[r]

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Method and means for testing soil samples

Method and means for testing soil samples

A device for testing soil samples to determine the presence of hydrocarbon contaminants, comprising, a closing container having an interior compartment having upper and lower portions, m[r]

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Method and means for gravity table automation

Method and means for gravity table automation

An apparatus for determining quality of a pharma ceutical product of a prede?ned type, comprising: impact transducer means for generating a transducer signal indicative of a set of physi[r]

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Means and method for soil testing

Means and method for soil testing

A method of determining the Coulomb parameters of soil using an elongated shearometer deviee comprising a first shaft with opposite upper and lower ends, a torsion spring mounted on said[r]

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On a method of construction of new means with applications

On a method of construction of new means with applications

In the present paper, we would like to introduce a simple transformation for bivariate means from which we derive a lot of new means. Relationships between the standard means are also obtained. A simple link between the Stolarsky mean and the Gini mean is given. As applications, this transformation allows us to extend some means from two to three or more arguments.

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Method of Light Beam Orbital Angular Momentum
Evaluation by Means of Space-Angle Intensity Moments

Method of Light Beam Orbital Angular Momentum Evaluation by Means of Space-Angle Intensity Moments

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Simple calibration method for dual-camera structured light system

Simple calibration method for dual-camera structured light system

Polynomial calibration methods [13–16] build the rela- tionship of phase and depth by fitting a polynomial through N pairs of known phases and depths for every pixel. Usually, a plate with discrete markers with known separations is positioned successively at different posi- tions from the camera. A marked point on the first cali- bration plate is used as the origin of the world reference system; then the following calibration plates are chosen parallel to the first one. In this method, their displace- ments with respect to the first plane must be known. To obtain high accuracy, more plate positions are used to cover the measurement volumes and the order of the polynomial should be more than five, which means that there are too many coefficients to calculate. The main drawback of this calibration method comes from its practical limitations, such as its plate position restric- tion, the difficulty of calibrating a large measurement volume, and the long running time of processing and capturing the fringe pattern image data.
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Morphological Analysis of Cells by Means of an Elastic Metric in the Shape Space

Morphological Analysis of Cells by Means of an Elastic Metric in the Shape Space

For an in-depth analysis of the results, considering that the method has demonstrated its efficiency in the morphological classification of erythrocytes, it is necessary to assess the feasibility of using it for possible tools to support the clinical diagnosis of patients with sickle cell disease. In the study of this disease, sickle cells are the most important class of cell, mainly due to two issues: the first is that this type of cell is the one that can cause the events that trigger vaso-occlusive crises; the second is that in a real study environment of a patient, there will always be a much smaller amount of sickle cells than other cells in the sample, so an algorithm that is not capable of performing well in this class is not recommended. The method must achieve good performance in the sensitivity and precision of the classification of normal and sickle cells because they are the most important classes, but the most complex class to process is that of other deformations, because it will be composed of elements that can have shapes close to the circular or elliptical, which therefore affects the accuracy of classification in the other two classes.
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Manipulation Control of a Flexible Space Free Flying Robot Using Fuzzy Tuning Approach

Manipulation Control of a Flexible Space Free Flying Robot Using Fuzzy Tuning Approach

Space Free-Flying Robots (SFFRs) are space robotic systems equipped with a single or multiple manipulators and thruster jets on the base satellite. These thrusters were originally proposed as on-off cold jets, while in the recent decades have been introduced as hot continuous ones. Distinct from fixed-based manipulators, the base of a SFFR responds to dynamic reaction forces due to the arms motion. Unlike long reach space manipulators, SFFR are suggested to be comparable to the size of an astronaut, and are usually investigated under the assumption of rigid elements. Here, the SFFR system contains a rigid main body equipped with two manipulating arms and two flexible solar panels. The system also includes a rotating antenna and camera as its third and fourth arm. As mentioned before, the RFIM approach may be interpreted as a method that combines the Lagrange and Newton-Euler methods. So, the coupling between the rigid subsystem and the flexible one is restricted to the constraint forces which are computed at each time step, and applied to the rigid part for computations of the next time step. This compact model of the rigid-flexible multi-body systems can be used to study the effects of the dynamics terms in the incitement of flexible members. Also, in applying a model-based control algorithm such as FTMC for a cooperative object manipulation control, this compact model is highly useful. These points are discussed in the following sections.
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Identification of the barley phyllosphere and the characterisation of manipulation means of the bacteriome against leaf scald and powdery mildew

Identification of the barley phyllosphere and the characterisation of manipulation means of the bacteriome against leaf scald and powdery mildew

Using microbes to control pathogens has emerged as integrated means of disease control in recent years (Kiss, 2003). These biological control agents (BCAs) can kill or hinder pests and pathogens through a vast array of mechanisms (Section 1.3.4.1). Some BCAs are commercially available such as the AQ10 Biofungicide ® from Ecogen Inc. (USA), for which commercialisation is also authorised in Europe. The active fungus, Ampelomyces quisqualis isolate M-10, kills the hyphae of the barley powdery mildew agent (Blumeria graminis f.sp. hordei) via mycoparasitism (Kiss, 2003). Nearly 200 bacterial and fungal species have shown biocontrol properties against air-borne pathogens (Nicot et al., 2011). However, the registration of a BCA is a long process in the European Union (EU) compared to the United States of America (USA) (Hauschild and Speiser, 2007) (Table 1.1). The commercialisation of only 25 microbial BCAs was authorised in 2007 and the consistency of BCA ’ s effectiveness is still questioned (Nicot et al., 2011).
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Camera Captured Kannada Hand Written Document Binarization & Segmentation in Color Space

Camera Captured Kannada Hand Written Document Binarization & Segmentation in Color Space

Lin et. al., [6] proposed a hybrid technique to segment & classify the contents like graphics, text & space in document images. In proposed system initially divide the document into sub-images called blocks, later, extract the Grey Level Co-occurrence Matrix (GLCM) features for each blocks. By using these features, group the blocks into 3-clusters by applying K-Means clustering algorithm. These groups are classified to graphics, text & space by using heuristic rule classifier. Wick and Puppe [7] presented a high-performance fully convolutional neural network (FCN) for historical handwritten document segmentation for single page by processing in one step.
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Practical strategies to stabilize a nanosatellite platform with a space camera and integrated mechanical parts

Practical strategies to stabilize a nanosatellite platform with a space camera and integrated mechanical parts

For a nanosatellite telescope structure design, the whole satellite vibration isolation and shock isolation should be considered. The shock isolation have been de- signed for frequencies above 100 HZ. The whole satellite vibration isolation is designed to attenuate frequencies above 30 HZ. Light weight space telescopes have become popular. Lighter optics can increase susceptibility to low frequency vibration disturbances. The support structure must be stiff for the lighter optics. As a result, small nonlinearities of the structure become large problems [31]. Vibration reduction for flexible spacecraft by input shaping [32], adaptive control [33] and positive position feedback (PPF) control is proposed for attitude maneu- vers. Using Lyapunov stability and dissipativity theory, control systems for slewing and vibration suppression have been developed. Vibration reduction using reaction wheels and thrusters have been proposed for the space telescope NGST. The thrusters were used for momentum dumping of the reaction wheels. The nanosatellite vibra- tion isolation should design for the frequencies 0.1 Hz to 1 HZ. Our satellite attitude control system is based on Lyapunov stability theory. Four reaction wheels are used for the precise pointing of the space camera. In our work, three magnetic rods are used for detumbling mode. The magnetic rods are also used for the momentum dumping of the micro reaction wheels. The deployable mirrors are handled after the detumbling mode. Second, a coarse attitude control is actuated with reaction wheels for pointing the satellite to a target object. Finally, a precision position control of the image sensor using the piezoelectric stage actuator behind the CCD detector will be used for high resolution observation.
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Lightweight means of actuation for use in space-based robotics applications

Lightweight means of actuation for use in space-based robotics applications

Ultimately, PAM and HAM concepts might be very useful for terrestrial applications and certainly offer a multitude of benefits when being applied to continuum robots in particular – continuum designs seek to emulate muscular hydrostats, such as a tongue or an elephants trunk, so PAM/HAM concepts are very alike these natural phenomena. This author would argue against their use in space-based activities for the following reasons. HAM concepts, as mentioned, are a non-started owing to their weight. PAM concepts can require heavy apparatus, etc. for pumps; however, the use of air in space may also add unnecessary complexity. This author’s suspicion is that for the same weight a more effective system could be developed.
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Video Summarization Based on Camera Motion and a Subjective Evaluation Method

Video Summarization Based on Camera Motion and a Subjective Evaluation Method

The third family uses camera motion to define a simi- larity measure between frames; this similarity is then used to select the keyframes. In [7], a similarity measure between two frames is defined by calculating the overlap between them. The greater the overlap is, the closer the content is and the fewer keyframes are selected. In the same way, Fauvet et al. [8] determine from the estimation of the dominant mo- tion, the areas between two successive frames which are lost or appear. Then, a cumulative function of surfaces which ap- pear between the first frame of the shot and the current frame is used to determine the keyframes. Nevertheless, these ap- proaches are based on a low-level description which mea- sures the overlap between frames. They are based on geomet- rical and local properties (number of pixels which appear or which are lost between two frames) and do not select frames according to the type of motion detected.
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Development of camera calibration software using bundle adjustment method

Development of camera calibration software using bundle adjustment method

Close range photogrammetry is a method that can be used to capture images from the ground using metric or non-metric cameras. According to Wolf (1983), the term close range photogrametry is used when the image of the object is captured in the range from the camera to the object is less than 300 meter. Another definition for the close range photogrametry is that the range between the object and the camera is less then 100 meter. In close range photogrammetry, the camera used can handle by hand or attached on the any suitable platform. At the early stage of close range photogrametry, it is used for the purpose of topographic mapping and even during the same time airplane was developed, the popularity of the close range photogrammetry is still strong (Clarke 1999). The products of close range photogrammetry include the shape, color, size, position and angle of the object.
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