SpeedFace M4
User Manual
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Requirements for Visible Light Digital Face Image Data
The digital photo should be straight-edged, colored, half-portrayed with only one person, and the person
should be uncharted and not in uniform. Persons who wear eyeglasses should remain to put on eyeglasses
for photo capturing.
Eye Distance
200 pixels or above are recommended with no less than 115 pixels of distance.
Facial Expression
A plain face or smile with eyes naturally open is recommended.
Gesture and Angle
The horizontal rotating angle should not exceed ±10°, elevation should not exceed ±10°, and the
depression angle should not exceed ±10°.
Accessories
Masks and colored eyeglasses are not allowed. The frame of the eyeglasses should not shield the eyes and
should not reflect light. For persons with thick eyeglasses frame, it is recommended to capture two images,
one with eyeglasses and the other one without eyeglasses.
Face
The image must have clear contour, real scale, evenly distributed light, and no shadow.
Image Format
Should be in BMP, JPG or JPEG.
Data Requirement
Should comply with the following requirements:
1)
White background with dark-colored apparel.
2)
24-bit true-color mode.
3)
JPG format compressed image with not more than 20 KB size.
4)
Definition rate between 358 x 441 to 1080 x 1920.
5)
The vertical scale of the head and body should be 2:1.
6)
The photo should include the captured person’s shoulders at the same horizontal level.
7)
The captured person should have eyes-open and with clearly seen iris.
8)
A plain face or smile is preferred, showing teeth is not preferred.
9)
The captured person should be clearly seen, natural in color, and without image obvious twist, no
shadow, light spot or reflection in face or background, and appropriate contrast and lightness level.
