STUDY OF EFFECT OF NUMBER AND LOCATION OF THE CONTROL POINTS ON THE ACCURACY OF 3D RECONSTRUCTION OF COORDINATES IN GAIT ANALYSIS SYSTEMS

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MALEKIPOUR FATEMEH; ABADPOUR ARASH; FARAHMAND FARZAM; NARIMANI ROYA

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Seminar Paper

Paper Information

Seminar: IRANIAN CONFERENCE ON BIOMEDICAL ENGINEERING
Year:2004 | Issue:11

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Title

STUDY OF EFFECT OF NUMBER AND LOCATION OF THE CONTROL POINTS ON THE ACCURACY OF 3D RECONSTRUCTION OF COORDINATES IN GAIT ANALYSIS SYSTEMS

Author(s)

MALEKIPOUR FATEMEH | ABADPOUR ARASH | FARAHMAND FARZAM | NARIMANI ROYA

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Abstract

IN THIS PAPER, THE EFFECTS OF NUMBER AND LOCATION OF THE CONTROL POINTS AND CAMERAS ON THE ACCURACY OF DLT CAMERA CALIBRATION METHOD IN GAIT ANALYSIS SYSTEMS IS STUDIED. USING THE KNOWN COORDINATE OF MARKERS ON TWO CALIBRATION FRAMES, THE EQUATIONS WERE SOLVED AT FIRST DIRECTLY FOR 6 CONTROL POINTS AND THEN USING LEAST SQUARE METHOD FOR DIFFERENT NUMBER OF CONTROL POINTS. IN ADDITION, THE EFFECTS OF LOCATION OF CONTROL POINTS AND NUMBER OF CAMERAS ON THE ACCURACY OF 3D RECONSTRUCTION OF THE COORDINATES WERE STUDIED. THE RESULTS SHOW THAT BY INCREASING THE NUMBER OF CONTROL POINTS THE RECONSTRUCTION ERROR IS REDUCED SIGNIFICANTLY; THE OPTIMUM NUMBER OF CONTROL POINTS IS 15 CONSIDERING THE AMOUNT OF CALCULATION REQUIRED AND RECONSTRUCTION ACCURACY ACHIEVED. IT WAS ALSO NOTICED THAT THE POSITION OF CONTROL POINTS IN RELATION WITH THE MOTION SPACE IS IMPORTANT; THE CONTROL POINTS SHALL SURROUND THE MOTION SPACE TO MINIMIZE THE RECONSTRUCTION ERROR.

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APA: Copy

MALEKIPOUR, FATEMEH, ABADPOUR, ARASH, FARAHMAND, FARZAM, & NARIMANI, ROYA. (2004). STUDY OF EFFECT OF NUMBER AND LOCATION OF THE CONTROL POINTS ON THE ACCURACY OF 3D RECONSTRUCTION OF COORDINATES IN GAIT ANALYSIS SYSTEMS. IRANIAN CONFERENCE ON BIOMEDICAL ENGINEERING. SID. https://sid.ir/paper/906409/en

Vancouver: Copy

MALEKIPOUR FATEMEH, ABADPOUR ARASH, FARAHMAND FARZAM, NARIMANI ROYA. STUDY OF EFFECT OF NUMBER AND LOCATION OF THE CONTROL POINTS ON THE ACCURACY OF 3D RECONSTRUCTION OF COORDINATES IN GAIT ANALYSIS SYSTEMS. 2004. Available from: https://sid.ir/paper/906409/en

IEEE: Copy

FATEMEH MALEKIPOUR, ARASH ABADPOUR, FARZAM FARAHMAND, and ROYA NARIMANI, “STUDY OF EFFECT OF NUMBER AND LOCATION OF THE CONTROL POINTS ON THE ACCURACY OF 3D RECONSTRUCTION OF COORDINATES IN GAIT ANALYSIS SYSTEMS,” presented at the IRANIAN CONFERENCE ON BIOMEDICAL ENGINEERING. 2004, [Online]. Available: https://sid.ir/paper/906409/en

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