Appendix 2. Status codes and error descriptions

Status codes and descriptions of failureReason errors in the RSE_CAPTURE_META response payloads when performing a Liveness check are summarized in Table 11.

Codes are common to msg-pack and JSON responses.

Table 11. Status codes and description of failureReason errors in RSE_CAPTURE_META response

Status Code	Description
0	There are no errors, the frame passes checks
1	Incorrect RGB frame
2	Incorrect Depth frame
3	Incorrect IR frame
4	Face wasn't detected
5	Face wasn't detected (face too small in frame)
6	The detected face doesn't pass one of the configuration parameters
7	It is impossible to estimate the face in the frame by 5 points
10	The face in the frame is cropped
11	Face rotated—eye distance is too short
13	Failed to normalize RGB frame
14	Failed to normalize Depth frame
15	Failed to normalize IR frame
16	Incorrect head position
17	Eyes are closed
18	Neutral face expression of the mouth muscles is necessary
19	Liveness frame Depth check was failed
20	Liveness IR frame check was failed
21	Poor frame quality
22	RGB frame is too bright
23	RGB frame is too dark
25	Image is blurry
26	FPR Liveness check was failed
28	Liveness check of RGB and IR frames comparison is in progress
29	Liveness check IR frame without illumination
31	Failed to recognize face on the frame
32	Failed to detect face on IR frame
33	Low quality Depth frame
34	Several faces with overlapping BBox zones detected