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Block motion estimation using adaptive modified two-bit transform

B. Demir, S. Ertürk
2007 IET Image Processing  
An adaptive modification to the two-bit transform-based low-complexity block motion estimation approach is proposed.  ...  Initially, video frames are converted into two-bit representations using the two-bit transform (2BT), and binary block-based motion estimation is performed using these two bit-planes.  ...  If 2BT estimation accuracy is below a certain adaptive threshold, additional MAD-based searches are executed.  ... 
doi:10.1049/iet-ipr:20060147 fatcat:jiec4alv5vbodbxid27g6q4ybu

Residual error curvature estimation and adaptive classification for selective sub-pel precision motion estimation

Saverio G. Blasi, Ebroul Izquierdo
2012 2012 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)  
We present a novel approach for adaptive precision motion estimation based on a classification of the residual error curvature.  ...  We also propose an original technique to compute and successively update a set of thresholds using the information from previously coded frames.  ...  INTRODUCTION The aim of motion estimation ME is to reconstruct a video frame based on a previously encoded frame using some descriptors of the estimated motion (motion vectors MV) and the residual error  ... 
doi:10.1109/icassp.2012.6288101 dblp:conf/icassp/BlasiI12 fatcat:mjpqjbyejnarvcfrepcvlwkroq

A fast feature-assisted adaptive early termination approach for multiple reference frames motion estimation in H.264

Jianfeng Ren, Nasser Kehtarnavaz, Madhukar Budagavi
2007 Journal of Real-Time Image Processing  
The multiple reference frames motion estimation approach used in H.264 is computationally intensive.  ...  from neighboring macroblocks, (2) the most probable reference frame prediction based on neighboring macroblocks, and (3) an adaptive early termination threshold derived from a theoretical analysis of  ...  Finally, two adaptive thresholds are derived based on all-zero-blocks.  ... 
doi:10.1007/s11554-007-0067-4 fatcat:yxqnecysvfgsfnjtorwei53ule

Shot-cut detection for B&W archive films using best-fitting kernel

Oguzhan Urhan, M. Kemal Gullu, Sarp Erturk
2007 AEU - International Journal of Electronics and Communications  
A double thresholding approach, consisting of global and local adaptive thresholds, is used in this stage.  ...  The best-fitting kernel, obtained using least squares, is used to estimate the second frame of each successive frame pair.  ...  consecutive frames are thresholded using an adaptive threshold to detect scene-cuts.  ... 
doi:10.1016/j.aeue.2006.08.002 fatcat:wpjr7znx7fcxrgamstt6v76h7a

Adaptive blotches detection for film restoration

Antoni Buades, Julie Delon, Yann Gousseau, Simon Masnou
2010 2010 IEEE International Conference on Image Processing  
In this paper, we propose a statistical approach to detect blotches in image sequences, which yields thresholds adapted to the local statistics of the frames, and which takes into account gray level differences  ...  This approach is combined with a blockbased motion estimation. The whole procedure is confronted with classical approaches on several sequences.  ...  After a prior motion estimation by a block-based technique, we derive from the local distribution of intensity differences a local threshold above which a difference can hardly be due to noise, but more  ... 
doi:10.1109/icip.2010.5651657 dblp:conf/icip/BuadesDGM10 fatcat:jfclucckzveclputepk62gjkpq

Improving NIC algorithm using different binary structure elements for multi-modal foreground detection

Thien Huynh-The, Cam-Hao Hua, Sungyoung Lee
2017 Proceedings of the 11th International Conference on Ubiquitous Information Management and Communication - IMCOM '17  
This paper improves a remarkable background estimation algorithm, namely Neighbor-based Intensity Correction (NIC) which is used in the background subtraction technique for foreground detection.  ...  Moreover, an adaptive threshold identified by referring several previous Otsu thresholds to cope with the high-speed motion challenge is proposed.  ...  Moreover, an Otsu-based adaptive threshold is recommended to handle the high speed motion challenge in which the objects appear and disappear suddenly in a couple of frames.  ... 
doi:10.1145/3022227.3022337 fatcat:nyvlwkprkfbg5jmmw4frhc7mie

Object tracking using adaptive block matching

K. Hariharakrishnan, D. Schonfeld, P. Raffy, F. Yassa
2003 2003 International Conference on Multimedia and Expo. ICME '03. Proceedings (Cat. No.03TH8698)  
An adaptive block-based approach has been used for estimating motion between frames. An efficient modulation scheme is used to control the gap between frames used for object tracking.  ...  First, covered regions are estimated from the displaced frame difference. These covered regions are classified into actual occlusions and false alarms using motion characteristics.  ...  Adaptive-blocks are used in the motion estimation and objectmask generation phase. Adaptive block sizes are equivalent to mesh-based approaches and hence motion estimation is accurate.  ... 
doi:10.1109/icme.2003.1221249 dblp:conf/icmcs/HariharakrishnanSRY03 fatcat:r63tok6dwzhcjgpx3prlt7vsfi

Adaptive Threshold for Background Subtraction in Moving Object Detection using Stationary Wavelet Transforms 2D

Oussama Boufares, Noureddine Aloui, Adnene Cherif
2016 International Journal of Advanced Computer Science and Applications  
The tests evaluation proved the efficiency of our algorithm for motion detection using adaptive threshold.  ...  The tracking step is based on the classical Kalman filter algorithm. This later uses the Kalman filter as many as the number of the moving objects in the image frame.  ...  PROPOSED ADAPTIVE THRESHOLD USING SWT FOR DETECTION OF MOVING OBJECTS In this section, an adaptive threshold technique based on SWT is applied on the obtained image using background subtraction, to detect  ... 
doi:10.14569/ijacsa.2016.070805 fatcat:lrgc6rmvk5h23jrg2ztnzumaoe

A Novel Hybrid Approach for Fast Block Based Motion Estimation

Shaifali Arora, Kavita Khanna, Navin Rajpal
2017 International Journal of Interactive Multimedia and Artificial Intelligence  
This approach is based on using a fixed threshold of 512 but using this threshold a large number of moving blocks could be detected as stationary blocks especially for slow motion sequences.  ...  As a result many approaches came up towards video compression. Block based motion estimation is the most prevalent among the various techniques for motion estimation (ME).  ... 
doi:10.9781/ijimai.2017.03.011 fatcat:lbzlsyc6ozgupdn7v3mhy5izdq

Single sub-image matching based low complexity motion estimation for digital image stabilization using constrained one-bit transform

Oguzhan Urhan, Sarp Erturk
2006 IEEE transactions on consumer electronics  
A fast motion estimation approach based on single sub-image bit-plane matching for low complexity image stabilization is presented in this paper.  ...  Furthermore, the multiplication operation required for 1BT is avoided using a new kernel.  ...  The adaptive behavior of the Kalman filter is changed using a fuzzy logic based approach according to camera motion characteristics in [7] .  ... 
doi:10.1109/tce.2006.273145 fatcat:nik7ugf2dva3fepyotaa3jkyla

Adaptive Edge-Oriented Shot Boundary Detection

Don Adjeroh, M. C. Lee, N. Banda, Uma Kandaswamy
2009 EURASIP Journal on Image and Video Processing  
We show how to provide adaptive parameters for the multilevel edge-based approach, and how to determine adaptive thresholds for the shot boundaries based on the characteristics of the particular shot being  ...  Adaptation is provided by a careful analysis of these multilevel features, based on shot variability.  ...  They thus suggested that the gradient (from one frame to the other) could be estimated from the reconstructed image using the motion estimates.  ... 
doi:10.1155/2009/859371 fatcat:aavfxpr5qrb63inpiefgcrirzi

Fast Binocular Depth Inference via Bidirectional Motion Based Interpolation

Wenjing Geng, Yang Yang, Ran Ju, Tongwei Ren, Gangshan Wu
2014 Proceedings of International Conference on Internet Multimedia Computing and Service - ICIMCS '14  
use of the motion estimation and the redundancy between frames.  ...  Then rough depth sequences inbetween are calculated using bidirectional motion-based interpolation.  ...  using a bidirectional motion-based interpolation.  ... 
doi:10.1145/2632856.2632872 dblp:conf/icimcs/GengYJRW14 fatcat:xbssti6hwrc6tn62r5cvulf4hq

A Classification Approach to Video Shot Boundary Detection

Bose Lungisani, Edwin Thuma, Gabofetswe Malema
2017 International Journal of Signal Processing, Image Processing and Pattern Recognition  
Our results suggest that a classifier built from a combination of block-based motion estimation, RGB histogram based block-based cross-correlation coefficient and RGB histogram based sum of squared difference  ...  This proves that a combination of luminance and motion based algorithms improves the detection of video shot boundaries.  ...  also using adaptive thresholding to increase effectiveness across different types of video content.  ... 
doi:10.14257/ijsip.2017.10.12.08 fatcat:oxanrfout5gvxp2rviyaccqoae

Improving foot-mounted inertial navigation through real-time motion classification

Brandon Wagstaff, Valentin Peretroukhin, Jonathan Kelly
2017 2017 International Conference on Indoor Positioning and Indoor Navigation (IPIN)  
We present a method to improve the accuracy of a foot-mounted, zero-velocity-aided inertial navigation system (INS) by varying estimator parameters based on a real-time classification of motion type.  ...  We train a support vector machine (SVM) classifier using inertial data recorded by a single foot-mounted sensor to differentiate between six motion types (walking, jogging, running, sprinting, crouch-walking  ...  The adaptive threshold outperforms both the walking and running threshold. Fig. 6 : 6 INS position estimates using two different zero-velocity thresholds and our adaptive approach.  ... 
doi:10.1109/ipin.2017.8115947 dblp:conf/ipin/WagstaffPK17 fatcat:5umbjkj6dngqdmiswqjtekzfea

Block Motion Estimation Using Modified Two-Bit Transform [chapter]

Begüm Demir, Sarp Ertürk
2006 Lecture Notes in Computer Science  
outperforms the modified one-bit transform (1BT) based motion estimation approach.  ...  Initially video frames are converted into two-bit representations using the two-bit transform (2BT) and binary block based motion estimation is performed using these two bit-planes.  ...  Modified 2BT Based Block Motion Estimation Two-bit transform based motion estimation has been proposed in [22] . The proposed 2BT, obtains a two-bit representation using block based transformations.  ... 
doi:10.1007/11902140_56 fatcat:xv34x5vn3ncoffp63clarccipe
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