Filters








1,191 Hits in 5.4 sec

Shot Boundary Detection Based on Eigen Coefficients and Small Eigen Value [chapter]

P. Punitha, Joemon M. Jose
2009 Lecture Notes in Computer Science  
In this paper, we present a fast, adaptive and non-parametric approach for detecting shot boundaries. Appearance based model is used to compute the difference between two subsequent frames.  ...  For instance, finding appropriate parameters instead of emp irical thresholds to detect the shot boundaries is very challenging and is still being researched.  ...  ., region of support, confidence value and curvature value are computed and based on these features the true shot boundaries are located.  ... 
doi:10.1007/978-3-642-10543-2_13 fatcat:vwngxffgvba2jnagvmtfy5y7pe

Keyframe Extraction and Shot Boundary Detection Using Eigen Values

Vijeetkumar Benni
2015 International Journal of Information and Electronics Engineering  
The behavior of the Eigen values of covariance matrix over certain frames is analyzed to detect the shot boundary and subsequently extract the keyframe.  ...  In this paper, a new technique for keyframe extraction and shot boundary detection is proposed.  ...  Shot boundary detection based on Eigen coefficients and small Eigen value [17] , presents an adaptive and non-parametric approach for shot boundary detection, without limiting itself to a specific type  ... 
doi:10.7763/ijiee.2015.v5.498 fatcat:3kdmjft4szhnbkbl4xrtgijeli

Review of Face Recognition Techniques

Mandeep Kaur, Jasjit Kaur
2017 International Journal of Computer Applications  
This paper conducts a survey of techniques which are available for face detection. Recognition is possible in case features are extracted from the presented face images.  ...  It utilizes polynomial coefficient, covariance matrix and algorithm based on Eigen values. The symmetry matrix is calculated based on common features extracted from the image dataset.  ...  Haar Wavelet Transform used to detects shot boundary. Frame Correlation threshold require to set so that shot boundaries easily can be detected.  ... 
doi:10.5120/ijca2017913731 fatcat:o2xilwbplfeyjcqr7xmdggeglu

Hierarchical video summarization in reference subspace

Richard Jiang, Abdul Sadka, Danny Crookes
2009 IEEE transactions on consumer electronics  
can achieve a better recall rate in keyframe detection, and gives an efficient hierarchical summarization at sub shot, shot and scene levels subsequently.  ...  In the proposed summarization scheme, the shot-level key frames are first detected from the continuity of inter-frame dissimilarity, and the sub-shot level and scene level representative frames are then  ...  Yeung and Yeo [14] reported their work on video summarization at the scene level based on a detected shot structure, where they classified all shots into a group of clusters and then extracted meaningful  ... 
doi:10.1109/tce.2009.5278026 fatcat:rfos7ettkzazznlj4yu26snp6a

Complex noise suppression and reconstruction of seismic reflection data from fault structures using Space Lagged Singular Spectral Analysis

R. K. Tiwari, R. Rajesh, T. Seshunarayana, K. Dhanam
2014 Nonlinear Processes in Geophysics Discussions  
Here, we employed Space Lagged Singular Spectral Analysis (SLSSA) algorithm, which decomposes the amplitudes from a constant time/depth to determine the original signal amplitude based on eigen properties  ...  of seismic signals from adjacent horizontal boundaries on either sides of the fault structure.  ...  Second author is also grateful to CSIR for SRF funding and AcSIR-NGRI.  ... 
doi:10.5194/npgd-1-649-2014 fatcat:si7iqvdd6jbutna4v2giryvd3m

Video Shot Boundary Detection using the Scale Invariant Feature Transform and RGB Color Channels

Zaynab El khattabi, Youness Tabii, Abdelhamid Benkaddour
2017 International Journal of Electrical and Computer Engineering (IJECE)  
In this context, a shot boundary detection algorithm is proposed in this paper based on the scale invariant feature transform (SIFT).  ...  <p>Segmentation of the video sequence by detecting shot changes is essential for video analysis, indexing and retrieval.  ...  , cosine wavelets, Eigen values, etc.  ... 
doi:10.11591/ijece.v7i5.pp2565-2673 fatcat:qmbd443h4zhzvawoytrc43ef6e

An intrinsic physical content of "single photon power" − (hν⋅Δν)

E. A. Salkov
2011 Semiconductor Physics, Quantum Electronics & Optoelectronics  
Using the calculations of threshold limitations for detecting the fluctuations of thermal radiation as a signal and not disturbances only, we have adduced some arguments concerning the phenomenological  ...  Also adduced are supplementary considerations concerning the existing models of arising shot noise at the photodetector output as a result of physical-and-statistical specificity of the electron excitation  ...  ] [4] as based on the well-known relation between the dispersion 〈ΔF 2 〉 of a random value F and its mean value 〈F〉: Comprehension of Eq. (1.1) can be founded using the respective analysis of recognized  ... 
doi:10.15407/spqeo14.01.012 fatcat:u6ux666aibe2vendrep5lolwc4

Enhancing Vehicular Safety in Adverse Weather Using Computer Vision Analysis

Che-Tsung Lin, Yu-Chen Lin, Long-Tai Chen, Yuan-Fang Wang
2014 2014 IEEE 80th Vehicular Technology Conference (VTC2014-Fall)  
In particular, the focuses were two-fold: (1) realizing the abilities to identify and localize in a vehicle's on-board video the sweeping windshield wipers during raining days and (2) designing and implementing  ...  the goal of the project is to design intelligent and robust image-processing and augmented-reality algorithms for driver assistance and enhanced vehicular safety.  ...  This behavior is mathematically correct and unavoidable. However, as the red pixels are around the frame boundaries as shown in Figure 5 , the visual distraction is hopefully small. IV.  ... 
doi:10.1109/vtcfall.2014.6965965 dblp:conf/vtc/LinLCW14 fatcat:xm2mo7qhi5dgfa3quhiwyzinhq

Squeezing of optomechanical modes in detuned Fabry–Perot interferometer

Andrey A. Rakhubovsky, Sergey P. Vyatchanin
2013 Physics Letters A  
Optical spring arising from detuned pump creates in the system several eigen modes which could be treated as high-Q oscillators.  ...  We also are grateful t Yanbei Chen, Farid Khalili and Stefan Danilishin. Authors are supported by the Russian Foundation for Basic Research Grant No. 08-02-00580-a and NSF grant PHY-0967049.  ...  This will result in modulation of coupling coefficient and hence it will cause shifting of eigen frequencies of system.  ... 
doi:10.1016/j.physleta.2013.03.022 fatcat:evebmpor6jh63hsjxsquvg3c3m

Evolutionary Computational Method of Facial Expression Analysis for Content-based Video Retrieval using 2-Dimensional Cellular Automata [article]

P. Geetha, Vasumathi Narayanan
2010 arXiv   pre-print
the shots based on it.  ...  In this paper, Deterministic Cellular Automata (DCA) based video shot classification and retrieval is proposed.  ...  Key faces are extracted from detected set by computing Eigen values.  ... 
arXiv:1009.1983v1 fatcat:av6ho655n5gttic66q4c566sde

Video Shot Boundary Recognition Based on Adaptive Locality Preserving Projections

Yongliang Xiao, Limin Xia, Shaoping Zhu, Dazu Huang, Jianquan Xie
2013 Mathematical Problems in Engineering  
A novel video shot boundary recognition method is proposed, which includes two stages of video feature extraction and shot boundary recognition.  ...  Secondly, we use an optimized multiple kernel support vector machine to classify video frames into boundary and nonboundary frames, in which the weights of different types of kernels are optimized with  ...  In paper [3] , the abrupt shot boundary is detected based on an adaptive threshold and gradual transition boundary is detected with a set of standard templates. Warhade et al.  ... 
doi:10.1155/2013/353261 fatcat:nhpgo6m2uvgohlftnmqh4nyzda

Face recognition across pose: A review

Xiaozheng Zhang, Yongsheng Gao
2009 Pattern Recognition  
This paper provides a critical survey of researches on image-based face recognition across pose. The existing techniques are comprehensively reviewed and discussed.  ...  can be implemented and utilised.  ...  Holistic approaches Kirby and Sirovich [43] used principal component analysis to efficiently represent face images by a small number of coefficients corresponding to the most significant eigen values  ... 
doi:10.1016/j.patcog.2009.04.017 fatcat:mf4ykjxncvd4hiiskiyckohf3a

A Survey on Classical and Modern Face Recognition Techniques

M. ShalimaSulthana, C. NagaRaju
2021 International Journal of Scientific Research in Computer Science Engineering and Information Technology  
This research, the primary goal is to summarize modern facial recognition algorithms and to gain a general perceptive of how these techniques act on diverse datasets.  ...  On account of its extraordinary success and vast social applications; it has attracted significant study attention from a wide range of disciplines in the last five years - including "computer-vision",  ...  values Using wavelet transform with four sub images and 10 Eigen values for each sub image, the feature vector has a length of 40 elements.RBF function selects a centre for each individual based on the  ... 
doi:10.32628/cseit21762 fatcat:ihjeygme6fem3bkas2nalzkywe

Automatic License Plate Recognition from Live streaming using Stroke width Transform and Artificial Neural Network

Heena Kher, Hetal Patel, Tejendra Panchal
2019 International Journal of Darshan Institute on Engineering Research & Emerging Technology  
The artificial neural network based character and number recognition was applied on the detected license plate.  ...  In this composition, the detection of a license plate from an image, stroke width transform was applied and been simulated on live snapshots.  ...  Authors also grateful to Principal and Head, Electronics and Engineering division of the A. D. Patel Institute of Technology for continuous motivation, assistance and encouragement.  ... 
doi:10.32692/ijdi-eret/7.2.2018.1802 fatcat:lkmbcrrd4bbvviqjwywpbfkimi

Sensitivity of laser gravitational-wave detectors with stable double-pumped optical spring

Andrey A. Rakhubovsky, Sergey P. Vyatchanin
2012 Physics Letters A  
(SQL) than previously considered regime with two close eigen frequencies.  ...  We take into account optical losses and show that they do not degrade sensitivity significantly. We also demonstrate possible application of considered regime to Einstein Telescope.  ...  We also thank Yanbei Chen, Farid Khalili and Stefan Danilishin. Authors are supported by the Russian Foundation for Basic Research Grant No. 08-02-00580-a and NSF grant PHY-0967049.  ... 
doi:10.1016/j.physleta.2012.03.030 fatcat:m4z2u5ka4zb5riay4xmnsd66aq
« Previous Showing results 1 — 15 out of 1,191 results