Abstract: The present invention provides use of a soy hull polysaccharide in the preparation of drugs for modulating intestinal flora, reducing blood glucose and blood lipid, and resisting inflammation, and of foods for special medical purpose (FSMPs), and the present invention belongs to the technical field of use of a soy hull polysaccharide. The soy hull polysaccharide provided in the present invention, with an interfacial activity in the intestinal tract, can slow down the absorption of cholesterol or the like; and has the activities for modulating intestinal flora, reducing blood glucose and blood lipid, and preventing intestinal inflammation. The soy hull polysaccharide can be used for preparing drugs for modulating intestinal flora, reducing blood glucose and blood lipid, and preventing and/or treating intestinal inflammation, and for preparing FSMPs.

Abstract: The computational complexity of video encoding is reduced by taking the decision whether to encode a region of a video frame or to skip the encoding prior to calculating whether any motion has occurred in respect of the same region in the previous frame. In one embodiment, the decision on whether to skip the encoding of a region is based o an estimate of the energy of pixel values in the region and/or en estimate of discrete cosine transform coefficients. In a further embodiment, the decision is based on an estimate of the distortion likely to occur if the region is no encoded.