Real surfaces often exhibit both specular (mirror-like) and matte behavior. In many scientific fields this behavior is approximated by the "Lambertian-specular" model, where a linear combination of Lambertian and ideal specular... more
Real surfaces often exhibit both specular (mirror-like) and matte behavior. In many scientific fields this behavior is approximated by the "Lambertian-specular" model, where a linear combination of Lambertian and ideal specular reflection is assumed. While this approximation is useful, it does not capture the dramatic surface appearance for acute and near-perpendicular viewing angles. The model presented in this paper does
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Abstract. We present several algorithms suitable for analy-sis of broadcast video. First, we show how wavelet analysis of frames of video can be used to detect transitions between shots in a video stream, thereby dividing the stream into... more
Abstract. We present several algorithms suitable for analy-sis of broadcast video. First, we show how wavelet analysis of frames of video can be used to detect transitions between shots in a video stream, thereby dividing the stream into segments. Next we describe how each ...