Shadow removal with background difference method based on shadow position and edges attributes
نویسندگان
چکیده
منابع مشابه
An Adaptive Background Updation and Gradient Based Shadow Removal Method
Moving object segmentation has its own niche as an important topic in computer vision. It has avidly being pursued by researchers. Background subtraction method is generally used for segmenting moving objects. This method may also classify shadows as part of detected moving objects. Therefore, shadow detection and removal is an important step employed after moving object segmentation. However, ...
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In the path based method, an error made at a time t1 is propagated throughout all t ≥ t1. We make the framework robust by addressing causes for errors and artifacts. • “Open” Shadow Masks: Wrong information propagated •Too many crossings of the shadow edge: sensitive to noise and material changes •Too regular paths: Easily visible artifacts •Sensitive information “under” shadow edges: reintegra...
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For some computer vision tasks, the presence of shadows in images can cause problems. For example, object tracks can be lost as an object crosses over a shadow boundary. Recently, it has been shown that it is possible to remove shadows from images. Assuming that the location of the shadows are known, shadow-free images are obtained in three steps. First, the image is differentiated. Second, the...
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In this paper we propose a novel method for detecting and removing shadows from a single image thereby obtaining a high-quality shadow-free image. With minimal user assistance, we first identify shadowed and lit areas on the same surface in the scene using an illumination-invariant distance measure. These areas are used to estimate the parameters of an affine shadow formation model. A novel pyr...
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For some computer vision tasks, the presence of shadows in images can cause problems. For example, object tracks can be lost as an object crosses over a shadow boundary. Recently, it has been shown that it is possible to remove shadows from images. Assuming that the location of the shadows are known, shadow-free images are obtained in three steps. First, the image is differentiated. Second, the...
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ژورنال
عنوان ژورنال: EURASIP Journal on Image and Video Processing
سال: 2012
ISSN: 1687-5281
DOI: 10.1186/1687-5281-2012-22