Báo cáo hóa học: "Research Article Detection of Complex Salient Regions" ppt

... error 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 Matching Complex salient Grey saliency Harris-Laplace Hessian-Laplace Figure 13: Matching percentage of the region detectors for the set of 30 car samples of different points of views in terms of regions intersection ... introduce the new metrics to estimate the saliency complexity. 2.1. Detection of salient regions The approach to detect...

Ngày tải lên: 22/06/2014, 01:20

... number of mixtures can poorly represent the geometry of the activity in a D-dimensional space, a high number of mixtures generally over fit the data. We have found that by varying the number of mixtures ... execution of different activities at a detailed level. The wireless in-home fixed sensors are IEEE 802.11 compatible. In more complex systems designed to identify a larger set of...

Ngày tải lên: 22/06/2014, 19:20

... (n) u(n) Feature extraction Detection algorithm Yes No Detected? Start and end points detection Analyze next frame Figure 1: Block diagram of the detection technique of abnormal conditions. more than one cycle of the ... use of second-order infor- mation of the error signal, which is the result of the subtrac- tion of the fundamental component from the electric signal, for...

Ngày tải lên: 22/06/2014, 20:20

... stability of the linear functional equation,” Proceedings of the National Academy of Sciences of the United States of America, vol. 27, no. 4, pp. 222–224, 1941. 3 T. Aoki, “On the stability of the ... inequality df, H ≤ L 4 − 4L , 2.35 which implies that inequality 2.28 holds. The rest of the proof is similar to the proof of Theorem 2.1. Corollary 2.4. Let r>2,letθ...

Ngày tải lên: 22/06/2014, 22:20

... examples of segments of 90-second length of the PPG envelope signals having labels: normal or apnoea, respectively. 4.2. Estimation of Relevance Weights of Dynamic Features. Another aspect worthy of ... independent of the number of classes. In this concrete case, discussed methodology of training assesses the tuning of the used k-nn classifier by calculating its optimal num...

Ngày tải lên: 21/06/2014, 05:20

... the limitation of this method, in terms of simultaneous detection of all the transitions contained in the signal, is illustrated as well. With a signal to noise ratio of 30 db, the four transients of the ... order of the phase law of a signal. Using this derivability property could lead to characterization via analysis of the successive phase derivates of a signal composed...

Ngày tải lên: 21/06/2014, 19:20

... algorithm of detection and parameters estimation of LFM signal is presented, by the computation of the CPF [7] of the signal, it is shown that the CPF is concentrated along the frequency rate law of ... the CPF of the “cross-terms” is bounded, while the CPF of the “autoterms” is infinite when u = 2β 1 or u = 2β 2 . So, the existence of the “cross-terms” does not influence the...

Ngày tải lên: 21/06/2014, 22:20

... present. 4.1. Distortion detection by center of gravity shifts The center of gravity of a spectrum (COG) is in a sense, the “mean” frequency, and this method is used for pitch detection and for audio ... that the surface of the peaksisdifferent from that of the valleys. The surface of the peaks corresponds to the volume of the difference between the original image and the succ...

Ngày tải lên: 22/06/2014, 01:20

... number of participants is given to the system as the number of clusters. An example of the distribution of the es- timated locations and the clustering is depicted in Figure 3. 3.3. Detection of ... source clustering Sound localization Estimation of steering vector Estimation of noise correlation Filtering Information on speech events Range of speaker Input signal Detection...

Ngày tải lên: 22/06/2014, 19:20

... the aims of the director. Thus, we have no clear definition of an exciting event, other than a sequence of shots that makes a viewer excited. The final event class is a superset of a number of differ- ent ... movie are: a description of the audio content (where the audio is placed into a specific class; speech, music, etc.), a measure of the amount of camera movement, a measure o...

Ngày tải lên: 22/06/2014, 19:20