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COMPUTER IMPLEMENTED METHOD AND SYSTEM FOR RETRIEVAL OF MULTI SPECTRAL BRDF PARAMETERS
COMPUTER IMPLEMENTED METHOD AND SYSTEM FOR RETRIEVAL OF MULTI SPECTRAL BRDF PARAMETERS
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机译：计算机实现的多光谱BRDF参数反演方法和系统
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摘要
In summary the invention relates to a computer implemented method and apparatus for retrieval of multi spectral bidirectional reflectance distribution function, BRDF, parameters by using red-green-blue-depth, RGBD, data. The method comprises the steps of: Capturing (S1) by an RGB-D camera at least one image of one or more objects in a scene, wherein the captured at least one image of the one or more objects comprises RGB-D data including color and geometry information of said objects; Reconstructing (S2) by a processing unit the captured at least one image of the one or more objects to one or more 3D reconstructions by using the RGB-D data; Classifying (S3) by a deep neural network the BRDF of a surface of the one or more objects based on the 3D reconstructions, wherein the deep neural network comprises an input layer, an output layer, and at least one hidden layer between the input layer and the output layer; and Retrieving (S4) the multi spectral BRDF parameters by approximating the classified BRDF by using an iterative optimization method. Due to the present invention, the multi spectral BRDF parameters of objects in specified environments can be retrieved.
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