automatic human action recognition in video sequences

... Shah, "Human Action Recognition in Videos Using Kinematic Features and Multiple Instance Learning," IEEE PAMI, vol 32, no 2, pp 288-303, Feb 2010 C Yuan, Xi Li, W Hu, H Wang Human action recognition ... number of centroids per video computed in the training and testing modes, respectively The training and testing algorithms are in Algorithms and respectively, where the training algorithm represents ... divided into two modes, the training mode and the testing mode The input patterns are the 2DHoG B-bins frames Let k denote the number of training frames, the jth training frame is denoted by an (m...

Ngày tải lên: 24/04/2014, 12:57

... Voting Action Action Action … … Action n Figure 1: Multi-view human action recognition system Overall System Description The proposed multi-input/camera human action recognition system, shown in ... is applied in both training and testing for feature extraction from the input patterns in the spatialdomain or the transform domain The K- Nearest Neighbor (KNN) Classifier is used to infer the ... the testing mode The following algorithm description is valid for either the spatial or transforms domain MEI and MHI representations Training mode In the training mode, videos representing different...

Ngày tải lên: 24/04/2014, 13:30

... actions in the Weizmann dataset (see Figure 3) Since the proposed method does not determine the type of action performed in the target video but localizes windows including the query action in ... detected windows with a given query action where i and j denote indexes of the query actions and actions included in target videos, respectively (see Figure 7) D denotes a set of videos excluding videos ... different clothes in the same action (b) Different appearance in conducting the same action due to backpack Stage Query action Target video Final determination of the best match using energy histogram...

Ngày tải lên: 21/06/2014, 18:20

... chosen as initial estimate value fchin,init Taking fchin,init ˆchin is determined in the as a starting point, the final value f following second step 2D search areas are placed around ˆ the chin contour ... endpoints belonging to fchin,init Inside these search areas, the optimization is continued Starting from the ˆ endpoints belonging to fchin,init , the quality function in (1) is evaluated in an ... determined Using ˆ ˆ fchin,init , the final value fchin is determined in the second step In the first step, search lines S0 , S1 , and S2 are introduced (Figure 6) The initial values for the chin...

Ngày tải lên: 23/06/2014, 01:20

... waving Hand clapping Greeting D 6 6 12 3.1 Dynamic Recognition Action Left hand low waving Right hand low waving Left hand high waving Right hand high waving Hand clapping Greeting Warping for Action ... algorithm for matching the testing action to a set of training action samples as shown in Figure In this model, the training set consists of a number of sample actions for each type in Table The DTW ... a testing action sample and all training action samples are obtained by using DTW It is clear that the smaller the distance, the more similar the training and testing action samples are In addition,...

Ngày tải lên: 13/08/2015, 10:00

... years, in computer vision community there is a growing interest in segmenting and tracking objects in video sequences The technique is useful in a wide spectrum of application areas including visual ... system to segment independently moving objects composing the scene in many applications including humancomputer interaction and object-based video coding One essential issue in the design of such ... constraints in video sequences during the segmentation process 2.3 Multi-object tracking Multi-object tracking is important in application areas such as visual surveillance and human- machine interaction...

Ngày tải lên: 16/09/2015, 17:11

... locations while maintaining their identities, and ultimately, recognition of ten distinct activities, which are walking, sitting down, getting up, squatting down and standing up, in both lateral ... varying skin tones was observed to lie in their color intensities rather than in the facial skin color itself This implies that the luminance signal Y does not contain useful information pertaining ... six joints The motion estimation problem is transformed into finding a stick figure with minimal energy in a potential field Prediction and angle constraints of individual joints were also introduced...

Ngày tải lên: 30/09/2015, 14:24

... Abstract Face tracking in video sequences is an important problem in computer vision because of multiple applications in many domains, such as: video surveillance, human computer interface, biometrics ... focusing on someone or something while talking Furthermore, there are important meanings in head movements as a form of gesturing in a conversation For example, the head nodding or shaking indicates ... model drift away in long video sequences In contrast, the learning tracker often has weak generalization ability because of training algorithms or the lack of training data In practice, to be...

Ngày tải lên: 21/05/2016, 23:12

... domain video processing The focus is put on developing effective techniques to make use of the features in DCT domain and the characteristics pertaining to compressed video 1.5.1 DCT-domain approach ... DCT domain operations The procedure of performing down-sampling by a factor of 1.50 by converting every × block in the source image or video to a × block in the resulting image or video ... B−frames Predicting missing faces in I−, P− and B−frames Post processing Face Sequences Skin−color attention filter DCT−domain face model Neural−network classifier Color histogram matching Skin−color...

Ngày tải lên: 11/09/2015, 14:35

... contains 11 activity categories: basketball shooting, biking/cycling, diving, golf swinging, horseback riding, soccer juggling, swinging, tennis swinging, trampoline jumping, volley ball spiking, ... different types of action classes: bending downwards, running, walking, skipping, jumping-jack, jumping, forward, jumping in place, galloping sideways, waving with two hands, and waving with one hand ... Does Unsupervised Pre-training Help Deep Learning?‖ The research indicates that pre-training is a kind of regularization mechanism, by minimizing variance and introducing a bias towards configurations...

Ngày tải lên: 09/10/2015, 06:39

... blocks are input to train the BP network During the training process, the bootstrap is introduced into our method Bootstrap means that when the output of the BP network is text block that is in fact ... following the algorithm presented in this paper The experimental data are from the various videos of some movies The total length of these videos is about 70 minutes The testing data contain 205 video ... Modelling,”Proc.11th Int’l Conf.Pattern Recognition, Assoc for Pattern Recognition Int’l, vol III, pp 607-610,1992 [14] W.Qi, et Al “Integrating Visual, Audio and Text Analysis for News Video, ”...

Ngày tải lên: 05/11/2012, 14:51

... refer to the sequences that are present in the genome of interest and absent from the host genome as being ‘host-blind’ (human- blind, mosquito-blind, mouseblind, rat-blind, etc.) sequences The ... in dengue and human- blind for all possible changes of one, two, three or four nucleotides Several hundred human- blind sequences were identified, including those that were (a) present in each individual ... these two sequences, the strains will be indistinguishable The likelihood of such an occurrence can be reduced by demanding more sequences for distinguishing between any two individual strains; this,...

Ngày tải lên: 23/03/2014, 11:20

... view point, and d) clip quality represents a single non-ambiguous human action Students were asked to consider a minimum quality standard like a single action per clip, a minimum of 60 pixels in ... position, video quality, motion, etc were evenly distributed across the training and testing sets For each action category in our dataset we selected sets of 70 training and 30 testing clips ... purposes, three distinct training and testing splits were generated from the database The sets were built to ensure that clips from the same video were not used for both training and testing and that...

Ngày tải lên: 23/03/2014, 12:20

... obtained by using multi-condition training approach, that is, the models were trained using a set of noisy training data The training and testing data were obtained as follows For each bird syllable, ... between training and testing noisy conditions The proposed tonal-based features obtained recognition accuracy that is very close to the accuracy obtained when using the matched training and testing ... the increased variety of the training data The obtained recognition results are presented in Table It can be seen that the performance obtained by both the MFCC and tonal-based features when using...

Ngày tải lên: 21/06/2014, 05:20

... images in Figure 11 show a binary mask for sequence Parking lot before and after removing foreground regions of uninteresting size, while the initialization of the Auto GMM-SAMT tracking unit using ... are bigger than a certain size Amin in the transformed binary image In most cases Amin can also be used to distinguish between airplanes and other vehicles After removing all foreground regions ... which are smaller than Amin , the binary mask is transformed back into the original view All remaining foreground regions in two subsequent frames are then matched by estimating the shortest distance...

Ngày tải lên: 21/06/2014, 08:20

... target The variations in performance caused by differences in grazing and aspect angles are evaluated in this paper The dataset used for the testing described in this paper contains a total of 1528 ... example that contains good discriminative information for a cylindrical target shape The third image contains much less information and could be from several different shapes, depending on orientation ... computed, and a curve joining all the maxima is generated; those maximal points are then removed and the process repeated selecting the new maxima from the remaining pixels and generating a new curve...

Ngày tải lên: 21/06/2014, 22:20

... Hatzinakos, “Gait recognition using linear time normalization,” Pattern Recognition, vol 39, no 5, pp 969–979, 2006 [7] M Ekinci, “Gait recognition using multiple projections,” in Proceedings ... performance of a gait recognition system In our approach, we use weights in order to reflect the importance of each view during the combination This means that instead of using a single distance for ... examining the distances between the test and reference sequences We calculated the distances for the five intraviews, and combined them using weights and five other existing methods mentioned in...

Ngày tải lên: 21/06/2014, 22:20

... recombination hotspot in chimpanzees PLoS Biol 2004, 2:849-855 Jeffreys AJ, Murray J, Neumann R: High-resolution mapping of crossovers in human sperm defines a minisatellite-associated recombination ... hotspots include clustering within small regions (under kb), no obvious sequence similarities with one another, and coincidence with apparent gene conversion events Interestingly, recombination ... 5:242 information 22 interactions Recombination hotspots are being revealed as a global feature of the human genome [6,10] Such hotspots have implications for studies of LD [6-8], the International...

Ngày tải lên: 14/08/2014, 14:21

... functions include storytelling, playing music, games, chatting, face tracking, video call, emotion recognition, and remote control (3) a robot containing two interaction interfaces in accordance ... environment noises Physical reactions such as touching are usual behaviors during human- human interaction or human- robot interaction The collected tactile signals contain the emotional content and ... has 38 DOFs, standing 58cm, and can fulfill motion and communication entertainment There are two main entertainment abilities in SDR-4X, which are dancing and singing When singing a song, the robot...

Ngày tải lên: 09/09/2015, 10:18

... for 15 promising VNAT administrators - Organized month training courses in Singapore and Malaysia for 50 provincial tourism officials - 450 tourism administrators from central and provincial tourism ... Result 2: Institutional Support Framework VITA - Assisted in developing and implementing Business & Action Plans - Provided Office Equipment and study tours to ASEAN - Assisted in seminars, international ... - Supported in organizing APEC, ASEAN conferences in Vietnam - Participated in ASEAN join task force on HRD in tourism, abroad VTOS accreditation - Established and maintained working relationships...

Ngày tải lên: 19/01/2013, 09:55