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The unstructured road detection plays a key role in an autonomous vehicle navigation system. However, the unstructured road images often contain shadows and are easily affected by ambient light, resulting to an inaccuracy with road detection. A robust road detection technique is required. In this paper, we adopted an improved fuzzy c-means(FCM) clustering algorithm to address these issues. The new...
The Gaussian Mixture Model (GMM) is one of the common object representation models in the field of target tracking. However, existing GMM modeling methods are time-consuming. In this paper, we present a method to quickly model the object by a GMM in the joint feature-spatial space. A new measure based on approximations of symmetric KL-Divergence is used to compute the similarity between two GMMs....
Video enhancement plays an important role in various video applications. It is desirable to achieve high visual quality of the entire picture where multiple region-of-interests (ROIs) within the frame can be adaptively and simultaneously enhanced. In this paper, a new global-based video enhancement algorithm is proposed. The proposed algorithm first analyzes features from different ROIs. Then, a ‘global’...
We present a novel stripe peak detection method for structured light based 3D reconstruction. With such approach, we achieve accurate peak location even for weak stripes. The process consists of two steps. In first step, an algorithm named Local Trend Measurement is proposed to segment stripe areas. Instead of detecting peaks by amplitude and width, we detect stripe peak by its illuminance rising...
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