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Body Height Measurements in Images
Author(s) -
Hoogeboom Bart,
Alberink Ivo,
Goos Mirelle
Publication year - 2009
Publication title -
journal of forensic sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.715
H-Index - 96
eISSN - 1556-4029
pISSN - 0022-1198
DOI - 10.1111/j.1556-4029.2009.01179.x
Subject(s) - artificial intelligence , computer vision , reproducibility , image quality , set (abstract data type) , quality (philosophy) , process (computing) , test (biology) , mathematics , point (geometry) , statistics , computer science , image (mathematics) , physics , programming language , operating system , paleontology , geometry , quantum mechanics , biology
For any measurement of a person’s height in an image, a difference exists between the actual height of the person and the image measurement. In order to gain knowledge about statistical behavior of differences between actual and measured heights it is necessary to make reference recordings, e.g., of test persons under the same recording conditions. To test whether the differences are dependent on camera and further circumstances, an experiment was set up which involved the measurement of 22 test persons using three cameras of varying quality. Reproducibility of measurements per image appears to be strongly dependent on the camera (quality), whereas systematic bias differs with the view point of the camera. Operator dependency of the measurement process is found, so its repetition by different operators is recommended.