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Data Types

Last updated: 2021-01-18 14:23:50

Candidate

Most matching candidate recognized

Used by actions: SearchFaces, SearchFacesReturnsByGroup, SearchPersons, SearchPersonsReturnsByGroup.

Name Type Description
PersonId String Person ID
FaceId String Face ID
Score Float Match score of candidate.

In a face base library containing 10,000 faces, the 1%, 0.1%, and 0.01% FARs correspond to scores of 70, 80, and 90, respectively;
In a face base library containing 100,000 faces, the 1%, 0.1%, and 0.01% FARs correspond to scores of 80, 90, and 100, respectively;
In a face base library containing 300,000 faces, the 1% and 0.1% FARs correspond to scores of 85 and 95, respectively.

Generally, the score of 80 is suitable for most scenarios. We recommend choosing an appropriate score based on the actual situation, preferably no more than 90.
PersonName String Person name
Note: this field may return null, indicating that no valid values can be obtained.
Gender Integer Person gender
Note: this field may return null, indicating that no valid values can be obtained.
PersonGroupInfos Array of PersonGroupInfo List of groups containing this person and their description fields
Note: this field may return null, indicating that no valid values can be obtained.

FaceAttributesInfo

Face attributes, including gender, age, expression,
beauty, glass, mask, hair, and pose (pitch, roll, yaw). Valid information will be returned only if NeedFaceAttributes is set to 1. The face attribute information of up to 5 largest faces in the image will be returned, and FaceAttributesInfo of the 6th and rest faces is meaningless.

Used by actions: DetectFace.

Name Type Description
Gender Integer Gender. The gender is female for the value range [0,49] and male for the value range [50,100]. The closer the value to 0 or 100, the higher the confidence. If NeedFaceAttributes is not 1 or more than 5 faces are detected, this parameter will still be returned but meaningless.
Age Integer Age. Value range: [0,100]. If NeedFaceAttributes is not 1 or more than 5 faces are detected, this parameter will still be returned but meaningless.
Expression Integer Expression. Value range: [0 (normal)–50 (smile)–100 (laugh)]. If NeedFaceAttributes is not 1 or more than 5 faces are detected, this parameter will still be returned but meaningless.
Glass Boolean Whether glasses are present. Valid values: true, false. If NeedFaceAttributes is not 1 or more than 5 faces are detected, this parameter will still be returned but meaningless.
Pitch Integer Vertical offset in degrees. Value range: [-30,30]. If NeedFaceAttributes is not 1 or more than 5 faces are detected, this parameter will still be returned but meaningless.
We recommend selecting images in the [-10,10] range for adding faces.
Yaw Integer Horizontal offset in degrees. Value range: [-30,30]. If NeedFaceAttributes is not 1 or more than 5 faces are detected, this parameter will still be returned but meaningless.
We recommend selecting images in the [-10,10] range for adding faces.
Roll Integer Horizontal rotation in degrees. Value range: [-180,180]. If NeedFaceAttributes is not 1 or more than 5 faces are detected, this parameter will still be returned but meaningless.
We recommend selecting images in the [-20,20] range for adding faces.
Beauty Integer Beauty. Value range: [0,100]. If NeedFaceAttributes is not 1 or more than 5 faces are detected, this parameter will still be returned but meaningless.
Hat Boolean Whether hat is present. Valid values: true, false. If NeedFaceAttributes is not 1 or more than 5 faces are detected, this parameter will still be returned but meaningless.
Note: this field may return null, indicating that no valid values can be obtained.
Mask Boolean Whether mask is present. Valid values: true, false. If NeedFaceAttributes is not 1 or more than 5 faces are detected, this parameter will still be returned but meaningless.
Note: this field may return null, indicating that no valid values can be obtained.
Hair FaceHairAttributesInfo Hair information, including length, bang, and color. If NeedFaceAttributes is not 1 or more than 5 faces are detected, this parameter will still be returned but meaningless.
Note: this field may return null, indicating that no valid values can be obtained.
EyeOpen Boolean Whether the eyes are open. Valid values: true, false. As long as there is more than one eye closed, false will be returned. If NeedFaceAttributes is not 1 or more than 5 faces are detected, this parameter will still be returned but meaningless.
Note: this field may return null, indicating that no valid values can be obtained.

FaceHairAttributesInfo

Hair information in face attributes.

Used by actions: DetectFace.

Name Type Description
Length Integer 0: shaved head, 1: short hair, 2: medium hair, 3: long hair, 4: braid
Note: this field may return null, indicating that no valid values can be obtained.
Bang Integer 0: with bangs, 1: no bangs
Note: this field may return null, indicating that no valid values can be obtained.
Color Integer 0: black, 1: golden, 2: brown, 3: gray
Note: this field may return null, indicating that no valid values can be obtained.

FaceInfo

Face information list.

Used by actions: DetectFace.

Name Type Description
X Integer Horizontal coordinate of the top-left vertex of the face frame.
The face frame encompasses the facial features and is extended accordingly. If it is larger than the image, the coordinates will be negative.
If you want to capture a complete face, you can set the negative coordinates to 0 if the completeness score meets the requirement.
Y Integer Vertical coordinate of the top-left vertex of the face frame.
The face frame encompasses the facial features and is extended accordingly. If it is larger than the image, the coordinates will be negative.
If you want to capture a complete face, you can set the negative coordinates to 0 if the completeness score meets the requirement.
Width Integer Face frame width.
Height Integer Face frame height.
FaceAttributesInfo FaceAttributesInfo Face attributes, including gender, age, expression,
beauty, glass, mask, hair, and pose (pitch, roll, yaw). Valid information will be returned only if NeedFaceAttributes is set to 1.
FaceQualityInfo FaceQualityInfo Face quality information, including score, sharpness, brightness, and completeness. Valid information will be returned only if NeedFaceDetection is set to 1.
Note: this field may return null, indicating that no valid values can be obtained.

FaceQualityCompleteness

Completeness of facial features, which assesses the completeness of the eyebrows, eyes, nose, cheeks, mouth, and chin.

Used by actions: DetectFace.

Name Type Description
Eyebrow Integer Eyebrow completeness. Value range: [0,100]. The higher the score, the higher the completeness.
Reference range: [0,80], which means incomplete.
Note: this field may return null, indicating that no valid values can be obtained.
Eye Integer Eye completeness. Value range: [0,100]. The higher the score, the higher the completeness.
Reference range: [0,80], which means incomplete.
Note: this field may return null, indicating that no valid values can be obtained.
Nose Integer Nose completeness. Value range: [0,100]. The higher the score, the higher the completeness.
Reference range: [0,60], which means incomplete.
Note: this field may return null, indicating that no valid values can be obtained.
Cheek Integer Cheek completeness. Value range: [0,100]. The higher the score, the higher the completeness.
Reference range: [0,70], which means incomplete.
Note: this field may return null, indicating that no valid values can be obtained.
Mouth Integer Mouth completeness. Value range: [0,100]. The higher the score, the higher the completeness.
Reference range: [0,50], which means incomplete.
Note: this field may return null, indicating that no valid values can be obtained.
Chin Integer Chin completeness. Value range: [0,100]. The higher the score, the higher the completeness.
Reference range: [0,70], which means incomplete.
Note: this field may return null, indicating that no valid values can be obtained.

FaceQualityInfo

Face quality information, including score, sharpness, brightness, and completeness. Valid information will be returned only if NeedFaceDetection is set to 1.

Used by actions: DetectFace.

Name Type Description
Score Integer Quality score. Value range: [0,100]. It comprehensively evaluates whether the image quality is suitable for face recognition; the higher the score, the higher the quality.
In normal cases, you only need to use Score as the overall quality standard score. Specific item scores such as Sharpness, Brightness, Completeness are for reference only.
Reference range: [0,40]: poor; [40,60]: fine; [60,80]: good; [80,100]: excellent.
We recommend selecting images with a score above 70 for adding faces.
Note: this field may return null, indicating that no valid values can be obtained.
Sharpness Integer Sharpness. Value range: [0,100]. It evaluates the sharpness of the image. The higher the score, the sharper the image.
Reference range: [0,40]: very blurry; [40,60]: blurry; [60,80]: fine; [80,100]: sharp.
We recommend selecting images with a score above 80 for adding faces.
Note: this field may return null, indicating that no valid values can be obtained.
Brightness Integer Brightness. Value range: [0,100]. The brighter the image, the higher the score.
Reference range: [0,30]: dark; [30,70]: normal; [70,100]: bright.
We recommend selecting images in the [30,70] range for adding faces.
Note: this field may return null, indicating that no valid values can be obtained.
Completeness FaceQualityCompleteness Completeness of facial features, which assesses the completeness of the eyebrows, eyes, nose, cheeks, mouth, and chin.
Note: this field may return null, indicating that no valid values can be obtained.

FaceRect

Position of detected face frame

Used by actions: CreateFace, CreatePerson, SearchFaces, SearchFacesReturnsByGroup, SearchPersons, SearchPersonsReturnsByGroup.

Name Type Description
X Integer Horizontal coordinate of the top-left vertex of face frame.
The face frame encompasses the facial features and is extended accordingly. If it is larger than the image, the coordinates will be negative.
If you want to capture a complete face, you can set the negative coordinates to 0 if the completeness score meets the requirement.
Y Integer Vertical coordinate of the top-left vertex of face frame.
The face frame encompasses the facial features and is extended accordingly. If it is larger than the image, the coordinates will be negative.
If you want to capture a complete face, you can set the negative coordinates to 0 if the completeness score meets the requirement.
Width Integer Face width
Height Integer Face height

FaceShape

Specific information of facial feature localization (facial keypoints).

Used by actions: AnalyzeFace.

Name Type Description
FaceProfile Array of Point 21 points that describe the face contour.
LeftEye Array of Point 8 points that describe the left eye.
RightEye Array of Point 8 points that describe the right eye.
LeftEyeBrow Array of Point 8 points that describe the left eyebrow.
RightEyeBrow Array of Point 8 points that describe the right eyebrow.
Mouth Array of Point 22 points that describe the mouth.
Nose Array of Point 13 points that describe the nose.
LeftPupil Array of Point 1 point that describes the left pupil.
RightPupil Array of Point 1 point that describes the right pupil.

GroupCandidate

Recognition result items by group

Used by actions: SearchFacesReturnsByGroup, SearchPersonsReturnsByGroup.

Name Type Description
GroupId String Group ID.
Candidates Array of Candidate Most matching candidate recognized

GroupExDescriptionInfo

Custom description field of the group to be modified, which is a key-value pair.

Used by actions: ModifyGroup.

Name Type Required Description
GroupExDescriptionIndex Integer Yes Custom group description field index, whose value starts from 0.
Note: this field may return null, indicating that no valid values can be obtained.
GroupExDescription String Yes Content of the custom group description field to be updated

GroupInfo

Returned group information

Used by actions: GetGroupList.

Name Type Description
GroupName String Group name
GroupId String Group ID
GroupExDescriptions Array of String Custom group description field
Note: this field may return null, indicating that no valid values can be obtained.
Tag String Group remarks
Note: this field may return null, indicating that no valid values can be obtained.
FaceModelVersion String Algorithm model version used for face recognition.
Note: this field may return null, indicating that no valid values can be obtained.
CreationTimestamp Integer Group creation time and date (CreationTimestamp), whose value is the number of milliseconds between the UNIX epoch time and the group creation time.
The UNIX epoch time is 00:00:00, Thursday, January 1, 1970, Coordinated Universal Time (UTC). For more information, please see the UNIX time document.
Note: this field may return null, indicating that no valid values can be obtained.

PersonExDescriptionInfo

Custom description field of the person to be modified, which is a key-value pair.

Used by actions: CreatePerson, ModifyPersonGroupInfo.

Name Type Required Description
PersonExDescriptionIndex Integer Yes Person description field index, whose value starts from 0.
Note: this field may return null, indicating that no valid values can be obtained.
PersonExDescription String Yes Content of the person description field to be updated

PersonGroupInfo

List of groups containing this person and their description fields

Used by actions: GetPersonGroupInfo, SearchFaces, SearchFacesReturnsByGroup, SearchPersons, SearchPersonsReturnsByGroup.

Name Type Description
GroupId String ID of the group that contains this person
PersonExDescriptions Array of String Content of person description field

PersonInfo

Returned person information

Used by actions: GetPersonList.

Name Type Description
PersonName String Person name
PersonId String Person ID
Gender Integer Person gender
PersonExDescriptions Array of String Content of person description field
FaceIds Array of String List of contained face images
CreationTimestamp Integer Person creation time and date (CreationTimestamp), whose value is the number of milliseconds between the UNIX epoch time and the group creation time.
The UNIX epoch time is 00:00:00, Thursday, January 1, 1970, Coordinated Universal Time (UTC). For more information, please see the UNIX time document.

Point

Coordinates

Used by actions: AnalyzeFace.

Name Type Description
X Integer X coordinate
Y Integer Y coordinate

Result

Face recognition result

Used by actions: SearchFaces, SearchPersons.

Name Type Description
Candidates Array of Candidate Most matching candidate recognized
FaceRect FaceRect Position of detected face frame
RetCode Integer Status return code of detected face image. 0: normal.
-1601: the image quality control requirement is not met; in this case, Candidate is empty.

ResultsReturnsByGroup

Recognition result.

Used by actions: SearchFacesReturnsByGroup, SearchPersonsReturnsByGroup.

Name Type Description
FaceRect FaceRect Position of detected face frame
GroupCandidates Array of GroupCandidate Recognition result.
RetCode Integer Status return code of detected face image. 0: normal.
-1601: the image quality control requirement is not met; in this case, Candidate is empty.

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