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Smart AC1/TD
w w w . t i m e t e c c l o u d . c o m
Requirements for Visible Light Digital Face
Image Data
Digital photo should be straightly 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
Plain face or smile with eyes naturally open are recommended.
Gesture and Angel
Horizontal rotating angle should not exceed ±10°, elevation should not exceed ±10°,
and depression angle should not exceed ±10°.
Accessories
Masks and colored eyeglasses are not allowed. The frame of the eyeglasses should not
shield 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.
Face
Complete face with 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. 24bit true color mode.
3. JPG format compressed image with not more than 20kb size.
4. Definition rate between 358 x 441 to 1080 x 1920.
5. The vertical scale of 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 be eyes-open and with clearly seen iris.
8. 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 appro
priate contrast and lightness level.
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