Distance measurement for a single image based on cross ratio

Wuhan Daxue Xuebao (Xinxi Kexue Ban)/Geomatics and Information Science of Wuhan University, Volume 36, Issue 2, 2011, Pages 190-194.

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Abstract:

An approach based on cross ratio to distance measurement for a single uncalibrated image is presented. Without any prior knowledge of the camera internal parameters (such as focal length and aspect ratio) or its pose (position and orientation), we put foreword and employ nested cross ratio to compute the length of a line segment on plane ...More

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