Face Match with Liveness

Face match with liveness algorithm is the technology to determine if the selfie photo is live or spoof then the selfie the images will be checked whether it belongs to the person expected.
Face Match with Liveness Flow
Face Detection: check the face position in the image
Liveness Check: check the spoof artifact and the output is liveness score. If the liveness score is below the threshold, it will be rejected then it does not continue to the matching process
Template extraction: compute the embedding of the face for the matching
Face Matching: Compare two face templates and the output is similarity score. If the face matches similarity under the threshold, the verification will be rejected.
1.Face liveness will be checked on the first flow, if the liveness result is true, then the process will be continued to face matching
2.Input sequence: KTP first then the selfie on the second row
Input Specification
For the face match with liveness API, you need to input 2 images on the API. The first index should be photo will be the template for photo matching, and the second index should be live selfie photo. For the template for photo matching, you can use an issued citizen ID card photo or your customer database photo. For the selfie photo, it will be verified on liveness check, please consider this input specification to get the proper result.
Input specification for Liveness Selfie (image on the second index)
Image Setting
Recommendation
Minimum face area size 
300 x 300 pixels, or adjust on 600 x 600 pixels 
Minimum camera pixel 
Above .2 MP 
Ideal face posture 
Frontal face 
Photo orientation position 
Vertical 
Image file size 
Minimum size 100 KB and maximum is 800 KB 
Total face in the frame 
1 face 
Image compression recommendation
Bicubic , with minimum JPEG quality 80%
For template photo matching, you can use a photo on issued ID or a frontal selfie. Check the recommendation below for the face template specification.
Input specification for face template using issued ID photo
Image Setting
Recommendation
Minimum KTP area 
400 x 300 pixels 
KTP orientation 
Landscape  
Minimum face area size 
150 x 150 pixels
Minimum camera pixel 
Above .2 MP 
Ideal face posture 
Frontal face 
Photo orientation position 
Vertical 
Image file size 
Minimum size 100 KB and maximum is 800 KB 
Total face in the frame 
1 face 
Image compression recommendation
Bicubic , with minimum JPEG quality 80%
Image KTP Recommendation Example
Recommended
Not recommended
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Input specification for face template using frontal photo
Image Setting
Recommendation
Minimum face area size 
150 x 150 px 
Minimum camera pixel 
Above .2 MP 
Ideal face posture 
Frontal face 
Photo orientation position 
Vertical 
Image file size 
Minimum size 100 KB and maximum is 800 KB 
Total face in the frame 
1 face 
Image compression recommendation
Bicubic , with minimum JPEG quality 80%

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Outline

Face Match with Liveness Flow

Input Specification

Input specification for face template using issued ID photo

Image KTP Recommendation Example

Input specification for face template using frontal photo