DESIGN AND IMPLEMENTATION OF A FOUR-FOCAL CAMERA SYSTEM FOR THE MEASUREMENT OF THE SURFACE OF THE BEDSORES

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MALIAN A.; AZIZI A.; ZOLFAGHARI M.

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Journal: Year:2006 | Volume:39 | Issue:5 (93) Page(s): 661-676

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Title

DESIGN AND IMPLEMENTATION OF A FOUR-FOCAL CAMERA SYSTEM FOR THE MEASUREMENT OF THE SURFACE OF THE BEDSORES

Author(s)

MALIAN A. | AZIZI A. | ZOLFAGHARI M. | Issue Writer Certificate

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Abstract

This paper describes a new approach in medical photogrammetry for the 3D reconstruction of the surface of bedsores. The implemented method utilizes four convergent digital cameras for acquiring four synchronized images of the bedsores. The exterior and interior orientations of the cameras as well as the cameras systematic errors are determined by a pre-calibration approach using accurately measured target points. As the bedsore texture is not appropriate for stereo matching, ambiguity will occur during the detection of the homologous points and hence image matching becomes complicated and very much exposed to gross error occurrences. Disambiguation is achieved by the enforcement of four focal epipolar geometry by which homologous points are detected based on the geometry of the cameras. The solutions of the space/resection intersection based on four camera geometry are discussed, the hardware components are described and the preliminary tests and results are presented.

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APA: Copy

MALIAN, A., AZIZI, A., & ZOLFAGHARI, M.. (2006). DESIGN AND IMPLEMENTATION OF A FOUR-FOCAL CAMERA SYSTEM FOR THE MEASUREMENT OF THE SURFACE OF THE BEDSORES. JOURNAL OF FACULTY OF ENGINEERING (UNIVERSITY OF TEHRAN), 39(5 (93)), 661-676. SID. https://sid.ir/paper/14439/en

Vancouver: Copy

MALIAN A., AZIZI A., ZOLFAGHARI M.. DESIGN AND IMPLEMENTATION OF A FOUR-FOCAL CAMERA SYSTEM FOR THE MEASUREMENT OF THE SURFACE OF THE BEDSORES. JOURNAL OF FACULTY OF ENGINEERING (UNIVERSITY OF TEHRAN)[Internet]. 2006;39(5 (93)):661-676. Available from: https://sid.ir/paper/14439/en

IEEE: Copy

A. MALIAN, A. AZIZI, and M. ZOLFAGHARI, “DESIGN AND IMPLEMENTATION OF A FOUR-FOCAL CAMERA SYSTEM FOR THE MEASUREMENT OF THE SURFACE OF THE BEDSORES,” JOURNAL OF FACULTY OF ENGINEERING (UNIVERSITY OF TEHRAN), vol. 39, no. 5 (93), pp. 661–676, 2006, [Online]. Available: https://sid.ir/paper/14439/en

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