FreeTrack
Camera
Table:
Comparison of some cameras compatible with FreeTrack

Camera

Sensor resolution

FPS

Sensor

Angle(°)

Output

CPU usage

Subpixel precision

IR LEDs

Approx. price (USD)

Ideal webcam

640×480

≥60

monochrome

42

highly compressed

small

Software-dependent

Yes

?

OEM IR webcam[3]

640×480

30

color

42

JPEG compressed

small

Software-dependent

Yes

$5

Sony PlayStation EyeToy

640×480

30

color

56

JPEG compressed[4]

small

Software-dependent

No

$16

Sony PlayStation 3 Eye

640×480

187@320x240(CLEye), 125@320x240(Directshow), 75@640x480(DirectShow)[5]

color

75, 56

JPEG compressed, raw

small

Software-dependent

No

$24

Microsoft Xbox Live Vision

640×480

60@320×240, 30@640×480

color

?

JPEG compressed,[6] raw

small

Software-dependent

No

$14

Nintendo Wii Remote

128×96

100(Bluetooth), 250(I2C)[7]

color

41

point coordinates

none

1/8

No

$23

NaturalPoint TrackIR 1 [8]

60k pixels (e.g. 300×200)

60

monochrome

33

binary threshold

minimal

Yes

retired

NaturalPoint TrackIR 2 [8]

60k pixels (e.g. 300×200)

100

monochrome

33

binary threshold[9]

minimal

Yes

retired

NaturalPoint TrackIR 3 [10]

355×288

80

monochrome

33

binary threshold

minimal

Yes

retired

NaturalPoint TrackIR 3 Pro [10]

355x288

120

monochrome

33

binary threshold

minimal

Yes

retired

NaturalPoint TrackIR 4 Pro [10]

355×288 (subsampled at 710×480)

120

monochrome

46

binary threshold[11]

minimal

1/20th

Yes

$99.95

NaturalPoint TrackIR 5 [10]

640×480

120

monochrome

51.7

grayscale threshold[12]

minimal

1/150th

Yes

$149.95

NaturalPoint SmartNav 1/2

60k pixels (e.g. 300×200)

60

monochrome

33

binary threshold

minimal

Yes

retired

NaturalPoint SmartNav 3 [13]

355×288

120

monochrome

33

binary threshold

minimal

1/20th

Yes

retired

NaturalPoint SmartNav 4[13]

640×480 (subsampled at 1280×480)

100

monochrome

41

grayscale threshold[14]

minimal

1/150th

Yes

$400 to $500

Looking at the tabular data covering the 'Camera' part of 'FreeTrack', summarise the highlighted cells in a single sentence and format it within the following JSON object {"answer": "YOUR ANSWER"}.