Head tracking - Revision history

Lof at 08:14, 23 May 2024

2024-05-23T08:14:51Z

← Older revision		Revision as of 08:14, 23 May 2024
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	==Introduction==		==Introduction==
	Head tracking is an important way to measure responses of subject to stimuli. The head movement can be measured in several ways, each with their pro's and con's. ~~In our labs three~~ techniques are used for head tracking: EMF, IMU and optical head tracking.		Head tracking is an important way to measure responses of subject to stimuli. The head movement can be measured in several ways, each with their pro's and con's. Three different techniques are used for head tracking in our labs: EMF, IMU and optical head tracking.

	==EMF head tracking==		==EMF head tracking==

Lof at 08:13, 23 May 2024

2024-05-23T08:13:34Z

← Older revision		Revision as of 08:13, 23 May 2024
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	==Introduction==		==Introduction==
	Head tracking is an important way to measure responses of subject to stimuli. The head movement ~~is measured~~ can be measured in several ways, each with their pro's and con's. In our labs three techniques are used for head tracking: EMF, IMU and optical head tracking.		Head tracking is an important way to measure responses of subject to stimuli. The head movement can be measured in several ways, each with their pro's and con's. In our labs three techniques are used for head tracking: EMF, IMU and optical head tracking.

	==EMF head tracking==		==EMF head tracking==

Lof at 08:13, 23 May 2024

2024-05-23T08:13:10Z

← Older revision		Revision as of 08:13, 23 May 2024
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	==Optical head tracking==		==Optical head tracking==
			%todo

Lof at 08:13, 23 May 2024

2024-05-23T08:13:02Z

← Older revision		Revision as of 08:13, 23 May 2024
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	==EMF head tracking==		==EMF head tracking==
	The Electromagnetic Field head tracking system consists of three low frequency (~60 kHz) magnetic field generators that create homogeneous alternating magnetic fields around the subject. There are three perpendicular fields (horizontal, vertical and frontal) each with a different frequency.		The Electromagnetic Field head tracking system consists of three low frequency (50, 60 and 70 kHz) magnetic field generators that create homogeneous alternating magnetic fields around the subject. There are three perpendicular fields (horizontal, vertical and frontal) each with a different frequency.

	The subject is wearing a pickup coil on his/her head during the trial. This coil ~~pick~~ up the magnetic fields ~~and the~~ strength of the different frequency components is depending on the orientation of the head. The pickup coil signal is again split in three components by three lock-in amplifiers (LIA's). The outputs of the LIA's are converted by ADC's and analysed further in ~~matlab~~ by a pre-trained neural network.		The subject is wearing a pickup coil on his/her head during the trial. This coil picks up the magnetic fields. The strength of the different frequency components is depending on the orientation of the head. The pickup coil signal is again split in three components by three lock-in amplifiers (LIA's). The outputs of the LIA's are converted by ADC's and analysed further in Matlab by a pre-trained neural network.

	This system is available in:		This system is available in:
	*[[Auditory Motion Lab]] ~~(''aka Robot Arm'')~~		*[[Auditory Motion Lab]]
	*[[Auditory Perception Lab]] ~~(''aka Patient Lab'')~~		*[[Auditory Perception Lab]]
	*[[Sphere lab\|Auditory Sphere Lab]]		*[[Sphere lab\|Auditory Sphere Lab]]

	==IMU head tracking==		==IMU head tracking==
			%todo

	==Optical head tracking==		==Optical head tracking==

Lof at 08:09, 23 May 2024

2024-05-23T08:09:02Z

← Older revision		Revision as of 08:09, 23 May 2024
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	The subject is wearing a pickup coil on his/her head during the trial. This coil pick up the magnetic fields and the strength of the different frequency components is depending on the orientation of the head. The pickup coil signal is again split in three components by three lock-in amplifiers (LIA's). The outputs of the LIA's are converted by ADC's and analysed further in matlab by a pre-trained neural network.		The subject is wearing a pickup coil on his/her head during the trial. This coil pick up the magnetic fields and the strength of the different frequency components is depending on the orientation of the head. The pickup coil signal is again split in three components by three lock-in amplifiers (LIA's). The outputs of the LIA's are converted by ADC's and analysed further in matlab by a pre-trained neural network.

	This system is available in		This system is available in:
			*[[Auditory Motion Lab]] (''aka Robot Arm'')
			*[[Auditory Perception Lab]] (''aka Patient Lab'')
			*[[Sphere lab\|Auditory Sphere Lab]]

	==IMU head tracking==		==IMU head tracking==

Lof: Created page with "==Introduction== Head tracking is an important way to measure responses of subject to stimuli. The head movement is measured can be measured in several ways, each with their p..."

2024-05-23T08:08:20Z

Created page with "==Introduction== Head tracking is an important way to measure responses of subject to stimuli. The head movement is measured can be measured in several ways, each with their p..."

New page

==Introduction==
Head tracking is an important way to measure responses of subject to stimuli. The head movement is measured can be measured in several ways, each with their pro's and con's. In our labs three techniques are used for head tracking: EMF, IMU and optical head tracking.

==EMF head tracking==
The Electromagnetic Field head tracking system consists of three low frequency (~60 kHz) magnetic field generators that create homogeneous alternating magnetic fields around the subject. There are three perpendicular fields (horizontal, vertical and frontal) each with a different frequency.

The subject is wearing a pickup coil on his/her head during the trial. This coil pick up the magnetic fields and the strength of the different frequency components is depending on the orientation of the head. The pickup coil signal is again split in three components by three lock-in amplifiers (LIA's). The outputs of the LIA's are converted by ADC's and analysed further in matlab by a pre-trained neural network.

This system is available in

==IMU head tracking==

==Optical head tracking==