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This paper presents a sketch rendering method based on GPU, which can simulate the style of pencil drawing. The method is divided into several steps. First, by use of rendering to texture technology and Sobel edge detection method to get the silhouette of the texture image. Second, render the model through dynamic UV coordinate mapping from a stroke texture group[1], and then blend the silhouette...
In order to make balance between the effect and time consumption of image segmentation, an image segmentation algorithm based on feature fusion and cluster is proposed in this paper. Firstly, the segmentation granularity is obtained adaptively according to the coarseness of image; secondly, different features are extracted, multi features are fused and classified by K-means clustering, and the image...
We present a simple, low cost but fast 3D data acquisition method. We employ a projector to project shifting color De Bruijn strips on the object, and a digital camera to record videos of the scene. The strips pattern divides the image to several spaces and the distortion of the strips on the object is used to get the object's 3D information. A novel space-time edge finding method is introduced to...
Color constancy is important for pattern recognition and image understanding. Based on simplified BRDF model, we use voting method to detect the high light areas. Then the pixels in the high light areas are projected to the inverse-intensity space. In the inverse-intensity space, the correlation of image chromaticity, inverse-intensity, and illumination chromaticity is linear. So we can estimate the...
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