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Domain name for API request: faceid.intl.tencentcloudapi.com.
This interface supports judgment of real person and photo comparison to verify the user's identity online. By passing the video and photo into the interface, it will first judge whether the person in the video is real. If yes, it judges whether the person in the video is the same one as the uploaded photo and returns authentication result.
A maximum of 20 requests can be initiated per second for this API.
The following request parameter list only provides API request parameters and some common parameters. For the complete common parameter list, see Common Request Parameters.
| Parameter Name | Required | Type | Description |
|---|---|---|---|
| Action | Yes | String | Common Params. The value used for this API: CompareFaceLiveness. |
| Version | Yes | String | Common Params. The value used for this API: 2018-03-01. |
| Region | Yes | String | Common Params. For more information, please see the list of regions supported by the product. This API only supports: ap-bangkok, ap-hongkong, ap-singapore. |
| ImageBase64 | Yes | String | Base64 string of the image for face comparison. - The size of the Base64-encoded image data can be up to 3 MB. JPG and PNG formats are supported. - Please use the standard Base64 encoding method (with = padding). Refer to RFC4648 for the encoding specification. |
| VideoBase64 | Yes | String | Base64 string of the video for liveness detection. - The size of the Base64-encoded video data can be up to 8 MB. MP4, AVI, and FLV formats are supported. -Use standard Base64 encoding (with = padding), following RFC4648. |
| LivenessType | Yes | String | Liveness detection type. -Values: ACTION is action mode. SILENT is silent mode. -Choose one of the two modes to pass in. |
| ValidateData | No | String | Control the action sequence. Action types include: 1 (open mouth), 2 (blink), 3 (nod), 4 (shake head). Supports one or two actions. -Required when the LivenessType parameter is set to ACTION. -Single action example: "1". -Multiple actions parameter passing example: "4,2". -When the LivenessType parameter is set to SILENT, leave it blank. |
| Parameter Name | Type | Description |
|---|---|---|
| Result | String | Business Error Codes. -When the return value is "Success", it indicates that liveness detection and face comparison passed. Determined to be the same person. -When the return value is "FailedOperation.CompareLowSimilarity", it indicates that liveness detection passed, but face comparison similarity is below 70. Determined not to be the same person. -For other error cases, please refer to Liveness Face Comparison (API only) Error Codes |
| Description | String | The service result description |
| Sim | Float | This value indicates the similarity of face comparison. Value range: 0.00-100.00. - The false acceptance rate for a threshold of 70 is 0.1%, and for a threshold of 80, it is 0.01%. - This value is valid when the Result parameter is "Success" or "FailedOperation.CompareLowSimilarity". |
| BestFrameBase64 | String | The best screenshot photo from the video after verification, encoded in BASE64, in jpg format. The optimal screenshot of the video after verification is the value encoded by BASE64, jpg format. Note: This field may return "null", indicating that no valid value can be obtained. Example values: "/9j/4AAQSk... (total length:142036)s97n//2Q==" |
| RequestId | String | The unique request ID, generated by the server, will be returned for every request (if the request fails to reach the server for other reasons, the request will not obtain a RequestId). RequestId is required for locating a problem. |
Liveness detection and face comparison passed. Determined to be the same person.
POST / HTTP/1.1
Host: faceid.intl.tencentcloudapi.com
Content-Type: application/json
X-TC-Action: CompareFaceLiveness
<Common request parameters>
{
"LivenessType": "SILENT",
"ImageBase64": "iVBORw0KGg...s97n//2Q==",
"VideoBase64": "AAAAGGZ0eX...AAwAAAAEecg=",
"ValidateData": ""
}
{
"Response": {
"Result": "Success",
"Description": "Success",
"Sim": 100,
"BestFrameBase64": "/9j/4AAQSk...s97n//2Q==",
"RequestId": "f89097ac-4003-4d73-acb3-696d4057b9eb"
}
}
Liveness detection and face comparison failed. Determined not to be the same person.
POST / HTTP/1.1
Host: faceid.intl.tencentcloudapi.com
Content-Type: application/json
X-TC-Action: CompareFaceLiveness
<Common request parameters>
{
"ImageBase64": "iVBORw0KGg...s97n//2Q==",
"VideoBase64": "AAAAGGZ0eX...AAwAAAAEecg=",
"LivenessType": "ACTION",
"ValidateData": "1"
}
{
"Response": {
"Result": "FailedOperation.CompareLowSimilarity",
"Description": "The comparison similarity did not reach the passing standard.",
"Sim": 9.21,
"BestFrameBase64": "/9j/4AAQSk...8ASrH/2Q==",
"RequestId": "6176fad1-f078-445b-8a4d-c8a903528b5a"
}
}
Liveness detection failed, the specified action was not detected.
POST / HTTP/1.1
Host: faceid.intl.tencentcloudapi.com
Content-Type: application/json
X-TC-Action: CompareFaceLiveness
<Common request parameters>
{
"ImageBase64": "iVBORw0KGg...s97n//2Q==",
"VideoBase64": "AAAAGGZ0eX...AAwAAAAEecg=",
"LivenessType": "ACTION",
"ValidateData": "4,2"
}
{
"Response": {
"Result": "FailedOperation.ActionFirstAction",
"Description": "The first motion is not detected.",
"Sim": 0,
"BestFrameBase64": "/9j/4AAQSk...W/M7/M/9k=",
"RequestId": "df5afd82-6469-4a4a-bd62-debf8c2ef94e"
}
}
TencentCloud API 3.0 integrates SDKs that support various programming languages to make it easier for you to call APIs.
The following only lists the error codes related to the API business logic. For other error codes, see Common Error Codes.
| Error Code | Description |
|---|---|
| FailedOperation.CompressVideoError | The video compression failed. Please try again or reduce the size of the input video. |
| FailedOperation.UnKnown | Unknown internal error. |
| InvalidParameter | Invalid parameter. |
| InvalidParameterValue | Incorrect parameter value. |
| UnauthorizedOperation.Activating | Activating the service. |
| UnauthorizedOperation.Arrears | The account is in arrears. |
| UnauthorizedOperation.NonAuthorize | Identity verification has not been completed for the account. |
| UnauthorizedOperation.Nonactivated | The service has not been activated. |
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