tracking visitors with sessions
Báo cáo hóa học: " Research Article Efficient Delay Tracking Methods with Sidelobes Cancellation for BOC-Modulated Signals" potx
... [12] Another similar tracking method with ΔΔ structure is the Early1/Early2 tracking [13], where two correlators are located on the early slope of the correlation function (with an arbitrary spacing); ... representative delay tracking algorithms, employed for comparison with the SCM methods Section introduces the SCM ideas and presents the SCM usage in conjunction with other delay tracking algorithms ... SCM with interference cancellation (IC) Combining the multipath eliminating DLL concept with the SCM method, we obtain an improved SCM technique with multipath interference cancellation (SCM with...
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Báo cáo hóa học: " Research Article Tracking Objects with Networked Scattered Directional Sensors" doc
... to (23) with respect to ask and bsk , we obtain the recursion si si vsk vsk − (Hsik )−1 gsski s (26) Similar expressions are obtained by Newton’s method apy,s x,s 0,s 0,s plied to (23), with respect ... discuss here the results of the experiments We focus on one experiment with 32 runs, although we performed experiments with up to 40 runs Figure 10 shows the actual and estimated entry and exit ... 10: Runs 4, 13, 22, and 31 from an experiment with a total of 32 runs Top circles are lasers, bottom dark circles are sensors Sensor lines are shown with dotted lines Note that the sensor lines...
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Báo cáo hóa học: " Application of Evolution Strategies to the Design of Tracking Filters with a Large Number of Specifications" potx
... predefined tracking scheme (with some free design parameters) for a certain tracking problem Applying exactly the same proposed methodology, we could have performed the optimization exercise with an ... noise variance for longitudinal models (θ = 4) with zero plant variance noise Modes for tracking transversal maneuvers (turns), θ = 2, 3, are filters with circular extrapolation dynamics [4, 5], ... performed the optimization exercise with an alternative IMM structure, or even with a different tracking technique with open design parameters, and compared after designing the process its capabilities...
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báo cáo hóa học: "Reliability and validity of pendulum test measures of spasticity obtained with the Polhemus tracking system from patients with chronic stroke" pot
... the ICCs associated with the various pendulum test measures obtained from the traces With the exception of the ICC associated with the velocity to first reversal during testing with no weight on ... supine and leg swinging freely with performed with subLine drawing illustrating pendulum test performed with subject supine and leg swinging freely with motion sensors attached and weight secured ... -.80, p ≤ ,01) with all of these measures None of the pendulum test measures correlated significantly (rs = 27 to 57) with gait speed Discussion This study demonstrated that a magnetic tracking system...
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báo cáo hóa học:" Accuracy of biplane x-ray imaging combined with model-based tracking for measuring in-vivo patellofemoral joint motion" doc
... factors to model-based tracking accuracy, this list of factors comes from first-hand experience with the technique The advantages of this technique of combining modelbased tracking with biplane x-ray ... relative to the laboratory coordinate system to an accuracy of within ± 0.1 mm These data enabled a direct comparison with the model-based tracking results Figure Experimental testing configuration ... rigidly attached to a custom testing fixture, with the leg suspended within the biplane x-ray system in an inverted position The quadriceps tendon was sutured with nylon cord so that simulated muscle...
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Báo cáo hóa học: " Research Article An Improved Flowchart for Gabor Order Tracking with Gaussian Window as the Analysis Window" doc
... order tracking and objective comparison with VoldKalman filtering order tracking, ” Mechanical Systems and Signal Processing, vol 21, no 2, pp 653–667, 2007 [6] H Shao, W Jin, and S Qian, “Order tracking ... same theoretical frequency If a Gabor coefficient spectrum with a Gaussian window of time standard width σt can separate the order components within a given order range and a speed range (i.e., the ... Journal on Advances in Signal Processing Begin Within desired speed range and order range determine tspacing,min , fspacing,min Determine σt,min , σt,max with (11), (12) No σt,max ≥ σt,min ? Yes Choose...
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Báo cáo hóa học: " Research Article Integrating the Projective Transform with Particle Filtering for Visual Tracking" potx
... are widely used in a variety of tracking tasks: head tracking via active contours [22, 23], edge and color histogram tracking [24, 25], sonar [26], and phase [27] tracking, to name few Particle ... 4.3 Tracking Rate Evaluation An important problem encountered in vehicle tracking is the phenomenon of tracker drift We propose here to estimate the robustness of the tracking by introducing a tracking ... for object tracking due to the weak assumptions on the state space model and the first-order Markov chain recursive properties Without loss of generality, let us consider a system with state x...
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Báo cáo hóa học: " Research Article Track and Cut: Simultaneous Tracking and Segmentation of Multiple Objects with Graph Cuts" doc
... set of parameters allows the tracking of an object with a relatively small computational time On the other hand, these approaches not deal with topology changes Tracking by minimizing an energy ... Next, the tracking method will be combined to the moving objects detector introduced in [2] (Section 3.2.2) 7.1 Tracking objects detected with background subtraction In this section, tracking ... and a few motion parameters The tracking is then achieved with a particle filter This technique was extended to multiple objects in [12] Previous methods not deal with the topology changes of an...
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Báo cáo hóa học: " Research Article Multiple Human Tracking Using Particle Filter with Gaussian Process Dynamical Model" pdf
... low-complexity and highly-efficient algorithm for tracking variable number of targets with competitive tracking performance in term of accuracy With the general framework of GPDM, it can be extended ... of tracking Targets using rotation invariant appearance model 6 EURASIP Journal on Image and Video Processing Figure 6: Sample results of tracking targets with temporary occlusion Table 1: Tracking ... (6) Jing Wang et al Figure 7: Sample results of tracking targets with missing frames Figure 8: Sample results of tracking target to be compared with [5] The likelihood P(Zt | kt , Yt ) is defined...
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Báo cáo hóa học: " Research Article Lane Tracking with Omnidirectional Cameras: Algorithms and Evaluation" docx
... estimation and tracking system [6] operating on rectlinear images, and Omni-VioLET, a modified version operating on omnidirectional images We compare the tracking results from both systems with ground ... vehicle could also be detected with this system since the sides are also monitored as well This work demonstrates that effective lane tracking can be achieved to some extent with omnidirectional images ... conditions [6] This allows a comparison of the omniimage based lane tracking with the most optimal rectilinear image-based lane tracking results The image resolution of the flat-plane transformed...
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Báo cáo hóa học: " Research Article Simultaneous Eye Tracking and Blink Detection with Interactive Particle Filters" pdf
... previous eye tracking Regenerating/predicting the closed-eye particles according to previous eye tracking Generating initial particles One set for open-eye tracking One set for closed-eye tracking ... and the tracking accuracy The blink detection rate is evaluated using videos collected under varying scenarios, and the tracking accuracy is evaluated using benchmark data collected with the ... for eye tracking and blink detection purpose Examples of the comparison are shown in Figure 11 As suggested, TSA presents a more accurate tracking result In Figure 11, examples of the tracking...
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Báo cáo hóa học: " Research Article Integrated Detection, Tracking, and Recognition of Faces with Omnivideo Array in Intelligent Environments" pot
... detection and tracking module as in Figure with different DFFS bound settings and with/ without Kalman tracking The DFFS bound matters with the true positive and false positive rates, and Kalman tracking ... suddenly, and the face detection and tracking can still keep the face with ellipse detection For face tracking performance (cf Figure 3), we tested the clips with the measurement noise variance ... outdoor test sequences on single-frame and tracking- based settings DFFS bound Single-frame Indoor Tracking Single-frame Outdoor Tracking Single-frame Total Tracking Faces Detected F Pos Faces Detected...
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Báo cáo hóa học: " Research Article Particle Filter with Integrated Voice Activity Detection for Acoustic Source Tracking" pot
... typically modeled as a Gaus2 sian PDF with variance σY , to account for measurement and calibration errors Thus, with N (ξ; μ, Σ) denoting a Gaussian density with mean μ and covariance matrix Σ ... these three approaches delivers the best tracking performance EXPERIMENTAL RESULTS This section presents some examples of the tracking results obtained with the proposed PF-VAD algorithm The various ... conjunction with an array of eight microphones sampled at 16 kHz An analysis of the algorithm showed that an implementation CONCLUSION AND FUTURE WORK This work is concerned with the problem of tracking...
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Báo cáo hóa học: " Research Article An Adaptive Constraint Method for Paraunitary Filter Banks with Applications to Spatiotemporal Subspace Tracking" potx
... 40 60 80 100 5000 10000 Number of iterations k 15000 Without adaptive constraint With adaptive constraint Without adaptive constraint With adaptive constraint (a) (b) Figure 3: Evolutions of ... 40 60 80 100 5000 10000 Number of iterations k 15000 Without adaptive constraint With adaptive constraint Without adaptive constraint With adaptive constraint (a) (b) Figure 4: Evolutions of ... practice In subspace tracking, numerical issues can affect the performance of subspace tracking algorithms Such issues have made the design of minor subspace and component tracking algorithms particularly...
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Báo cáo hóa học: " Research Article A Feedback-Based Algorithm for Motion Analysis with Application to Object Tracking" pdf
... equilibrium Our model is similar to his but with some significant differences His algorithm is concerned only with showing that a dynamical system initialized only with noise can trigger recognition of ... a In this section we present some simulation results of object tracking on a few video sequences Note that the tracking is done without actually estimating any dense motion field In all the results ... object tracking, first we give results with Tracker D Figures 11 and 12 show results obtained on the video sequence shown in Figure The square marked in Figure 11(a) is the object selected for tracking...
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Báo cáo hóa học: "Rule-Driven Object Tracking in Clutter and Partial Occlusion with Model-Based Snakes" doc
... be further applied (Figure 17), is shown in soft curves the tracking method with and without the geometrical model for head contour tracking We present representative example frames from the TV ... Figure 10: Example of tracking an aircraft approaching the airport: the case of complicated tracked contour with smooth background (a) (d) (b) (e) (c) (f) Figure 11: A moving car tracking in six, ... region of the tracked objects The main problems that tracking approaches are called upon to cope with are nonrigid (deformable) objects, objects with complicated (not smooth) contours, object movements...
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Báo cáo khoa học: " Radical stereotactic radiosurgery with real-time tumor motion tracking in the treatment of small peripheral lung tumors" docx
... extracranial tumors since early 2002 [15] With the introduction of the Synchrony motion tracking module, in mid 2004, tumors that move with respiration have been treated without potentially uncomfortable ... contoured A treatment plan with a 5-mm margin on the GTV for contouring and tracking uncertainty was generated using the TPS 5.2.1 non-isocentric, inverse-planning algorithm with tissue density heterogeneity ... the initial treatment, each patient was evaluated with fluoroscopy to verify that the motion of the fiducials chosen for tracking correlated with tumor motion Prophylactic corticosteroids were...
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báo cáo khoa học: "Radical cyberknife radiosurgery with tumor tracking: an effective treatment for inoperable small peripheral stage I non-small cell lung cancer ppsx
... in lung function associated with lobectomy Treatment options for patients with clinical stage I NSCLC who are not surgical candidates are limited Inferior outcomes with conventionally fractionated ... data Continuous tracking of respiratory tumor motion and highly accurate beam alignment throughout treatment with the CyberKnife allowed us to deliver radical dose distributions with http://www.jhoonline.org/content/2/1/1 ... Kuduvalli G, Maurer CR: Xsight Lung Tracking System: A Fiducial-less Method for Respiratory Motion Tracking In Robotic Radiosurgery: Treating Tumors that Move with Respiration Edited by: Urschel...
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Báo cáo y học: "Long-term tracking of neurological complications of encephalopathy and myopathy in a patient with nephropathic cystinosis: a case report and review of the literature" ppt
... age-dependent dysphagia in nearly all patients with cystinosis In addition Vester et al demonstrated electrophysiological signs of myopathy in patients with cystinosis without obvious weakness [9] Myopathic ... the hands and arms Subsequently the patient lost the ability to sit up without assistance and could walk only three blocks without resting Post-mortem muscle studies revealed peri- and endomysial ... study confirmed cystine accumulation in myotube cells [6] from patients with cystinosis A study of 54 post-transplant patients with cystinosis found distal myopathy in 13 of these patients [7] Clinical...
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Báo cáo y học: "The International Symposium on Intensive Care and Emergency Medicine continues to grow every year, with in excess of 4000 attendees. With six parallel sessions for four frenetic days, it covers all" doc
... patients with chronic obstructive pulmonary disease showed significant reductions in intubation requirements and mortality, when used early The evidence for early intervention in patients without ... pro/con debate A very amusing debate followed, with Arthur Slutsky (Toronto, Canada) directing his attack at ridiculing Robert Kacmarek (Boston, MA, USA) with the use of surreptitiously obtained holiday ... Slutsky with very little time to discuss the evidence that high-frequency ventilation (HFV) is beneficial Robert Kacmarek led a strong defence and showed that animal studies comparing HFV with conventional...
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