API

FPT.AI Vision - Vietnamese ID Card Recognition

Requirements

• The input image must have 4 clear angles or all main components of a Vietnamese ID card such as photocard, National emblem, document title.
• All information fields must be visible, readable, unmodified, not blurred.
• The input image size does not exceed 5 MB and the minimum resolution is approximately 640x480 to ensure the confident rate.
• The ratio of Vietnamese ID card area must be at least ¼ of the total image area.

Standard image

Bad image

• Image with low quality and lack of corner

• Image with low quality and lack of information

Request

Request Url

POST https://api.fpt.ai/vision/idr/vnm/

Request Headers

Parameter	Required	Default	Description
api_key	Yes		Your api key ( get from console.fpt.ai )

Request Body

FormData contain a single image to recognize

Parameter	Required	Description
image	Yes

Sample Request

curl -X POST https://api.fpt.ai/vision/idr/vnm/ -H "api-key: xxxxxx" -F "image=@path/to/image"

Response

JSON

{
    "errorCode" : x,
    "errorMessage" : "xxxx",
    "data" : [xxxx]
}

The system is able to extract all information found on old or new types of Vietnamese ID card (the identification information on the back is only returned if required). The system divides the results into 4 categories:

• old Vietnamese ID card front side
• old Vietnamese ID card back side
• new Vietnamese ID card front side.
• new Vietnamese ID card back side.

After successfully sending the request, the system will return a json file that includes text information on the Vietnamese ID card using the format below.

• errorCode: value is 0 if the request was successful with no error occurred
• errorMessage: value is equal to empty string if the request was successful with no error occurred
• data: include all information on the Vietnamese ID card image if the request succeeds without errors, return empty list [] if an error occurs (All fields that the system can not extract, will have value "N/A"). Also included with the information extracted is the probability that indicates the reliability of the returned results.

(The detail of the errors that might occure include both errorCode and errorMessage is described on Errors)

Old type - front side

{
  "errorCode" : 0,
  "errorMessage" : "",
  "data": [
    {
      "id": "xxxx",
      "id_prob": "xxxx",
      "name": "xxxx",
      "name_prob": "xxxx",
      "dob": "xxxx",
      "dob_prob": "xxxx",
      "sex": "N/A",
      "sex_prob": "N/A",
      "nationality": "N/A",
      "nationality_prob": "N/A",
      "home": "xxxx",
      "home_prob": "xxxx",
      "address": "xxxx",
      "address_prob": "xxxx",
      "address_entities": {
            "province": "xxxx",
            "district": "xxxx",
            "ward": "xxxx",
            "street": "xxxx"
      },
      "doe": "N/A",
      "doe_prob": "N/A",
      "type": "xxxx"
    }
  ]
}

The old type Vietnamese ID card front side composes of 5 data fields:

Field	Description
id	ID number
name	Name
dob	Date of birth
home	Original place
address	Address

Besides, there are 3 additional data fields, including:

Field	Description
type	includes 4 types: old: front side of old 9-digit ID card old_back: back side of old 9-digit ID card new: front side of new 12-digit ID card new_back: back side of new 12-digit ID card
type_new	ID cards are separated into smaller classes which differentiate 2 types of new ID card; including 5 types: cmnd_09_front: front side of old 9-digit ID card old_back: back side of old 9-digit ID card cmnd_12_front: front side of type-1 12-digit ID card cccd_12_front: front side of type-2 12-digit ID card new_back: back side of new 12-digit ID card
address_entities	the raw address address will be standardized and separated into 4 parts: province district ward street

Old type - back side

{
  "errorCode" : 0,
  "errorMessage" : "",
  "data": [
    {
      "religion_prob": "xxxx",
      "religion": "xxxx",
      "ethnicity_prob": "xxxx",
      "ethnicity": "xxxx",
      "features": "xxxx",
      "features_prob": "xxxx",
      "issue_date": "xxxx",
      "issue_date_prob": "xxxx",
      "issue_loc_prob": "xxxx",
      "issue_loc": "xxxx",
      "type": "xxxx"
    }
  ]
}

The old type Vietnamese ID card back side composes of 5 data fields:

Field	Description
ethnicity	Ethnicity
religion	Religion
features	Personal mark and disfigurement
issue_date	Issue date
issue_loc	Issue location

New type - front side

{
  "errorCode" : 0,
  "errorMessage" : "",
  "data": [
    {
      "id": "xxxx",
      "id_prob": "xxxx",
      "name": "xxxx",
      "name_prob": "xxxx",
      "dob": "xxxx",
      "dob_prob": "xxxx",
      "sex": "xxxx",
      "sex_prob": "xxxx",
      "nationality": "xxxx",
      "nationality_prob": "xxxx",
      "home": "xxxx",
      "home_prob": "xxxx",
      "address": "xxxx",
      "address_prob": "xxxx",
      "address_entities": {
            "province": "xxxx",
            "district": "xxxx",
            "ward": "xxxx",
            "street": "xxxx"
      },
      "doe": "xxxx",
      "doe_prob": "xxxx",
      "type": "xxxx"
    }
  ]
}

The new type Vietnamese ID card front side composes of 8 data fields:

Field	Description
id	ID number
name	Name
dob	Date of birth
home	Original place
address	Address
sex	Gender
nationality/ethnicity	Nationality/ Ethnicity
doe	Expiry date

Besides, there are 3 additional data fields, including:

Field	Description
type	includes 4 types: old: front side of old 9-digit ID card old_back: back side of old 9-digit ID card new: front side of new 12-digit ID card new_back: back side of new 12-digit ID card
type_new	ID cards are separated into smaller classes which differentiate 2 types of new ID card; including 5 types: cmnd_09_front: front side of old 9-digit ID card old_back: back side of old 9-digit ID card cmnd_12_front: front side of type-1 12-digit ID card cccd_12_front: front side of type-2 12-digit ID card new_back: back side of new 12-digit ID card/li>
address_entities	the raw address address will be standardized and separated into 4 parts: province district ward street

New type - back side

Response for the new type Vietnamese ID card back side

{
  "errorCode" : 0,
  "errorMessage" : "",
  "data": [
    {
      "religion_prob": "N/A",
      "religion": "N/A",
      "ethnicity_prob": "N/A",
      "ethnicity": "N/A",
      "features": "xxxx",
      "features_prob": "xxxx",
      "issue_date": "xxxx",
      "issue_date_prob": "xxxx",
      "issue_loc_prob": "N/A",
      "issue_loc": "N/A",
      "type": "xxxx"
    }
  ]
}

The new type Vietnamese ID card back side composes of 2 data fields:

Field	Description
features	Personal mark and disfigurement
issue_date	Issue date

Errors

This section covers common errors and can be handled by the system, messages are returned clearly and specifically for the purpose of instructing users to use the API accurately.

The system uses the error codes as follows:

Error Code	Meaning
0	No error -- This is a successful call, no error
1	Invalid Parameters or Values! -- Wrong parameter in the request (e.g. no key or image in the request body).
2	Failed in cropping -- The Vietnamese ID card in the image is missing of corners so it cannot be cropped to the standard format.
3	Unable to find ID card in the image -- The system cannot find the Vietnamese ID card in the image or the image is of poor quality (too blur, too dark/bright).
5	No URL in the request -- The request uses the image_url key but the value is left blank.
6	Failed to open the URL! -- The request uses the image_url key but the system cannot open this URL.
7	Invalid image file -- The uploaded file is not an image file.
8	Bad data -- The uploaded image file is corrupted or the format is not supported.
9	No string base64 in the request -- The request uses image_base64 key but the value is left blank.
10	String base64 is not valid -- The request uses image_base64 key but the provided string is invalid.