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Fast and automatic video object segmentation and tracking for content-based applications
2002
IEEE transactions on circuits and systems for video technology (Print)
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A novel algorithm for segmentation of moving objects in video sequences and extraction of video object planes (VOPs) is proposed in this paper. ...
After removing edge points which belong to the previous frame, the remaining edge map, moving edge (ME), is used to extract the VOP. ...
Since spatial edge information is useful for generating VOP with accurate boundaries, a simple binary edge difference scheme may be assumed to be a good solution. ...
doi:10.1109/76.988659
fatcat:6skfw2xv3bh7ri6bbjhwmkifeq
Video segmentation for content-based coding
1999
IEEE transactions on circuits and systems for video technology (Print)
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Thanks to our new boundary postprocessor and the excellent edge localization properties of the Canny operator, the resulting VOP contours are very accurate. ...
These binary models then guide the actual video object plane (VOP) extraction. ...
At the moment, we are not aware of any algorithm that can automatically perform VOP segmentation accurately and reliably for generic video sequences. ...
doi:10.1109/76.809155
fatcat:kjwyx73fqrbylcqbo6ugexmxzu
Object-based video abstraction for video surveillance systems
2002
IEEE transactions on circuits and systems for video technology (Print)
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Once a VOP is extracted, the shape of the VOP needs to be well described. ...
In such a framework, the concept of a "key frame" is replaced by that of a "key video-object plane (VOP)." ...
in the luminance difference [see Fig. 1 Fig. 2 shows the block diagram of our segmentation algorithm. ...
doi:10.1109/tcsvt.2002.806813
fatcat:7h35igsjm5bu3i4p4anz6lvqlm
Automatic segmentation of moving objects for video object plane generation
1998
IEEE transactions on circuits and systems for video technology (Print)
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A comprehensive review summarizes some of the most important motion segmentation and VOP generation techniques that have been proposed. ...
Then, a new automatic video sequence segmentation algorithm that extracts moving objects is presented. ...
Otherwise, we are not aware of any automatic segmentation algorithm that can accurately locate the boundaries of moving objects in generic video sequences. ...
doi:10.1109/76.718500
fatcat:6kbkjvo5ozc7rmoqm57sburufi
Low bit-rate coding of image sequences using adaptive regions of interest
1998
IEEE transactions on circuits and systems for video technology (Print)
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The algorithm uses a neural network architecture that classifies the video frames in regionsof-interest (ROI) and non-ROI areas, also being able to automatically adapt its performance to scene changes. ...
Simulation results are presented, using the Claire and Trevor sequences, which show reconstructed images of better quality, as well as signal-to-noise ratio improvements of about 1.4 dB, compared to those ...
The first level consists of a feedforward neural network [8] , which generates the segmentation mask using the features extracted from each image block. ...
doi:10.1109/76.736718
fatcat:qarobjz4wretpouvihrrl2li6e
Optimal 2-D hierarchical content-based mesh design and update for object-based video
2000
IEEE transactions on circuits and systems for video technology (Print)
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Representation of video objects using hierarchical 2D content-based meshes for accurate tracking and level of detail (LOD) rendering have been previously proposed, where a simple suboptimal hierarchical ...
To this effect, this paper proposes an optimized design of hierarchical 2D content-based meshes with a shape-adaptive simplification and temporal update mechanism for object based video. ...
When processing block by block the average of a block is calculated by using average values of the previous blocks.
2) Detection of self-occlusion The problems induced by the motion of boundary nodes ...
doi:10.1109/76.875517
fatcat:64kkaaqykng3xbvqfitrij67nq
Fast motion estimation for shape coding in MPEG-4
2003
IEEE transactions on circuits and systems for video technology (Print)
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In addition, the proposed algorithm can be combined with any conventional fast block matching algorithm (BMA) being used in texture ME and a bit-packing technique based on binary feature of shape information ...
By properly using these properties, the proposed algorithm can reduce a processing speed. ...
Manuscript Applications of real-time object based MPEG-4 encoding are currently limited due to the lack of mature automatic segmentation algorithm. ...
doi:10.1109/tcsvt.2003.811430
fatcat:hejknbzro5hprdegtxlnfevwbm
Automatic segmentation of moving objects in video sequences: a region labeling approach
2002
IEEE transactions on circuits and systems for video technology (Print)
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Each VOP corresponds to a single moving object in the scene. This paper presents a new method for automatic segmentation of moving objects in image sequences for VOP extraction. ...
Index Terms-Markov random fields, MPEG-4, video segmentation, VOP extraction, watershed segmentation. ...
DISCUSSION AND CONCLUSIONS This paper introduces a new algorithm for automatic segmentation of moving objects in image sequences for VOP generation. ...
doi:10.1109/tcsvt.2002.800513
fatcat:643jno25bzaenelzznkc4j2era
Object-Based Coding for Plenoptic Videos
2010
IEEE transactions on circuits and systems for video technology (Print)
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PVs are simplified dynamic light fields, where the videos are taken at regularly spaced locations along line segments instead of a 2-D plane. ...
A new object-based coding system for a class of dynamic image-based representations called plenoptic videos (PVs) is proposed. ...
A semi-automatic segmentation method called "lazy snapping" [29] is used to perform the segmentation. ...
doi:10.1109/tcsvt.2010.2041820
fatcat:smm6bc2jyrcevdwt6udqeb6cqq
Efficient background video coding with static sprite generation and arbitrary-shape spatial prediction techniques
2003
IEEE transactions on circuits and systems for video technology (Print)
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Each region uses a unique strategy in blending. This makes the proposed technique work well even in the case of coarse segmentation. ...
In general, the generated sprite is not a rectangular image. ...
However, the current automatic segment techniques are still difficult to provide accurate background boundaries. ...
doi:10.1109/tcsvt.2003.811607
fatcat:klaag7vskzaavly74iysz7t7h4
Fast Video Segmentation Algorithm With Shadow Cancellation, Global Motion Compensation, and Adaptive Threshold Techniques
2004
IEEE transactions on multimedia
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This paper presents a fast video segmentation algorithm for MPEG-4 camera systems. ...
Automatic video segmentation plays an important role in real-time MPEG-4 encoding systems. ...
After boundary smoothing, the improved mask is shown in Fig. 5(c) . Finally, the generated VOP is shown in Fig. 5 (d).
IV. ...
doi:10.1109/tmm.2004.834868
fatcat:epqcojbntbbntk2tgh7eqk5ane
An object-based compression system for a class of dynamic image-based representations
2005
Visual Communications and Image Processing 2005
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PVs are simplified dynamic light fields, where the videos are taken at regularly spaced locations along line segments instead of a 2-D plane. ...
This paper proposes a new object-based compression system for a class of dynamic image-based representations called plenoptic videos (PVs). ...
A semi-automatic segmentation method called "lazy snapping" 12 is used to perform the segmentation. ...
doi:10.1117/12.632666
fatcat:inh3ch3wxje5ffttw7ktbds3t4
SemanticPaint
2015
ACM Transactions on Graphics
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Using our system, a user can walk into a room wearing a depth camera and a virtual reality headset, and both densely reconstruct the 3D scene and interactively segment the environment into object classes ...
These user-generated labels are leveraged by an online random forest-based machine learning algorithm, which is used to predict labels for previously unseen parts of the scene. ...
We compare the proposed VOP feature against fast and established features in the 2D object segmentation literature as well as one widely used 3D feature. ...
doi:10.1145/2751556
fatcat:r54z2iasqvfczpfb6vptrpeafa
MultiView: Multilevel video content representation and retrieval
2001
Journal of Electronic Imaging (JEI)
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A seeded region aggregation and temporal tracking technique is proposed for generating the semantic video objects. ...
The semantic video scenes can then be generated from these extracted video access units (e.g., shots and objects) according to some domain knowledge. ...
The shot-based abstraction of video content, which is constructed by a set of key frames or key VOPs, is used to provide fast browsing of a single video sequence. ...
doi:10.1117/1.1406944
fatcat:ngtiwnmuqfak7gq5u2ff6s6oki
Moving object detection using Markov Random Field and Distributed Differential Evolution
2014
Applied Soft Computing
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Segmentation is viewed as a pixel labeling problem and is solved using the maximum a posteriori (MAP) probability estimation principle; i.e., segmentation is done by searching a labeled configuration that ...
In spatial segmentation, a multi-layer compound Markov Random Field (MRF) is used which models spatial, temporal, and edge attributes of image frames of a given video. ...
Acknowledgements The authors like to thank the reviewers for their thorough and constructive comments, which helped a lot to enhance the quality of the manuscript. Funding by U.S. ...
doi:10.1016/j.asoc.2013.10.021
fatcat:gejvibivojfwnkyffh5ie3ye3a
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