FREQUENCY-BASED PROJECTION SEGMENTATION

专利名称：FREQUENCY-BASED PROJECTION

SEGMENTATION

发明人：Sebastian Soehner,Christian

Schneider,Muhammad Umair Akmal,TimKunz

申请号：US153743申请日：20180212

公开号：US201802682A1公开日：20180920

专利附图：

摘要：A method for segmenting a projected pattern in an image recorded by a

camera includes recording, by a camera in a learning phase, a multiplicity of imagesproduced by virtue of a light source projecting the pattern from a plurality of differentangles onto a projection surface in a clean room, wherein the projection surface has aplurality of respectively different distances from the light source for each angle;transforming the multiplicity of images into a frequency domain representation;obtaining a value range of occurring frequencies from the frequency domainrepresentation of the multiplicity of images; and masking, in an application phase,frequencies other than the frequencies lying in the value range in a frequency domainrepresentation of the image recorded by the camera, wherein a difference image

produced in this manner is transformed back from the frequency domain representation.

申请人：Dr. Ing. h.c. F. Porsche Aktiengesellschaft

地址：Stuttgart DE

国籍：DE

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