Movingobject Segmentation with Adaptive Sprite
نویسنده
چکیده
We have developed a moving-object segmentation method for standard-compliant DCT-based video coder. To be compliant with current block-based video coding standards, the proposed algorithm uses the DCT coefficients and motion vector of a block, respectively, as spatial and temporal features of segmentation. Since block-based motion vector may not be sufficient to represent true motion of object, the proposed algorithm overcomes this problem by using statistical approach. Moreover, the proposed segmentation algorithm operates in parallel with the video coding. Therefore, the proposed segmentation algorithm can be efficiently integrated in parallel with the DCT-based video coder for the improvement of coding efficiency as well as segmentation accuracy.
منابع مشابه
An Integrated framework for Robust and Fast Automatic Video Segmentation
In this paper, we extend previous work on video segmentation [1,2] and propose a novel integrated module-based framework for real-time applications which require automatic, precise, and fast-based features. The framework consists of five main modules: sprite generator, key frame identifier, change detector, video object plane (VOP) extractor and post-processor. A universal approach for sprite-o...
متن کاملImproving Foreground Detection for Adaptive Background Segmentation
This paper tries to manage with the nonincorporation of erroneous foreground objects to the background model, and the incorporation of those detected objects which cease their movement. These newly motionless foreground objects should be handled in security domains such as video surveillance. This paper uses an adaptive background modelling algorithm for movingobject detection. Those detected o...
متن کاملA High Visual Quality Sprite Generator Using Intelligent Blending without Segmentation Masks
The sprite generator introduced in MPEG-4 blends frames by averaging, which will make places, that are always occupied by moving objects, look blurred. Thus, providing segmented masks for moving objects is suggested. Several researchers have employed automatic segmentation methods to produce moving object masks. Based on these masks, they used a reliability-based blending strategy to generate s...
متن کاملSprite-based video coding using on-line segmentation
We address the problem of on-line sprite-based video coding in cases where scene segmentation is not available a priori or transmission of such segmentation information cannot be afforded due to low bit rate requirements. We propose an on-line segmentation method that can be integrated into an MPEG4 online sprite based video codec. The proposed method uses macroblock types as well as motion com...
متن کاملAdaptive Segmentation with Optimal Window Length Scheme using Fractal Dimension and Wavelet Transform
In many signal processing applications, such as EEG analysis, the non-stationary signal is often required to be segmented into small epochs. This is accomplished by drawing the boundaries of signal at time instances where its statistical characteristics, such as amplitude and/or frequency, change. In the proposed method, the original signal is initially decomposed into signals with different fr...
متن کامل