Best practice ｜ using Tencent cloud AI character recognition to realize enterprise qualification certificate recognition

In business activities , Qualification certificate is a necessary certificate to prove the production capacity of an enterprise , It is also a platform for enterprises to settle in 、 Organization project declaration, etc. must be submitted , This includes the business license 、 Tax registration certificate 、 Production license 、 High tech enterprise accreditation certificate, etc . In daily work , Take the settlement of platform enterprises as an example , The enterprise is required to upload the corresponding qualification certificate and then review , However, due to the wide variety of enterprise qualification certificates , There are differences in qualification certificates from all walks of life , There is no unified plate , Through manual review, the workload is huge and easy to make mistakes .

that , Is there a more intelligent way to make the qualification review process faster and more efficient ？ Searched for word recognition products at home and abroad , Discover Tencent cloud AI Character recognition has launched a new intelligent structured recognition capability , Be able to recognize and extract all kinds of licenses 、 Notes 、 Forms 、 Field information of structured scenarios such as contracts . After deep understanding , It is found that this interface capability fits perfectly with the problem of automatic enterprise qualification audit that we want to solve .

Next , I will describe in detail how I use intelligent structured recognition , Complete the title of qualification certificate 、 Company name 、 License number 、 Registered address 、 Automatic acquisition of information such as the person in charge of the enterprise .

One 、 preparation

In order to use Tencent cloud intelligent structured recognition capability , First of all, we need to make some preparations .

1. Tencent cloud AI Character recognition provides functional experience Services （ Function experience page ）, We first experienced the intelligent structural ability , You can see that the recognition effect is very good , Let's have more confidence in using this interface capability .

2. Using Tencent cloud AI Before character recognition, you need to open character recognition service . Open Tencent cloud OCR Console page , We have successfully opened a character recognition service .

3. After the service is successfully opened , Tencent cloud AI Character recognition gives away a free resource pack , Among them, intelligent structure includes 1000 Free quota for each time , Can be in Resource pack management page Check the resource package usage .

When the free resource pack runs out , We first purchased some prepaid resource packs according to the usage , Later, post payment was opened , Ensure that the business can continue to call the interface normally .

• We first evaluated the request magnitude of the business , So in character recognition Purchase page Bought intelligent structured recognition 100 Ten thousand resource packs , The more resource packs you buy, the greater the discount . Can be in Resource pack management page View the specific usage of the resource package .

• And then in Usage statistics page You can see the call volume of the interface .

• Finally, we Setup page Opened the post payment service , In this way, you don't have to worry about the failure of the calling interface caused by the exhaustion of resource packets . It should be noted that the post payment setting can only be changed once a month .

Two 、 Development process

Through the following steps, you can officially use the intelligent structuring capability .

• Get a personal key
• Intelligent structure API file
• Experience online call
• Use integrated Tencent cloud OCR Of SDK
• Query the transferred quantity

1、 Get a personal key

First , We need to get personal API secret key , Used for calling interfaces . Open Tencent cloud access management API Key management page , You can create a personal key .

2、 Intelligent structured recognition API file

Check the specific instructions of the interface , In character recognition API file You can view the input parameters of intelligent structural recognition 、 Output parameters 、 Error code 、 Examples and other information .

3、 Online debugging

Tencent cloud AI Character recognition provides online call API Explorer Tools , It is convenient for us to visually call , And generate calling code , You can visually see the request parameters and return parameters .

4、 Use SDK call

Next, you can officially access the interface , At the bottom of intelligent structures and documents , Provides development toolsets for multiple languages （SDK）,SDK The method of using is very simple and convenient , We can choose to access according to the language we need .

The development language we use is GoLang.

• 1. Install the common base package

go get -v -u github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/common

• 2. Install the product package corresponding to character recognition

go get -v -u github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/ocr

• 3. Implementation call logic （ Only the main logic , Incomplete code ）

package main

import (
	"fmt"
	"github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/common"
	"github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/common/errors"
	"github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/common/profile"
	"github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/common/regions"
	ocr "github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/ocr/v20181119"
)

func main() {
	credential := common.NewCredential("secretId", "secretKey")
	client, _ := ocr.NewClient(credential, regions.Guangzhou, profile.NewClientProfile())

	request := ocr.NewSmartStructuralOCRRequest()
	request.ImageUrl = common.StringPtr("xxxxx")
	response, err := client.SmartStructuralOCR(request)

	if _, ok := err.(*errors.TencentCloudSDKError); ok {
		fmt.Printf("An API error has returned: %s", err)
		return
	}
	if err != nil {
		panic(err)
	}
	fmt.Printf("%s\n", response.ToJsonString())
}

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• 4. Intelligent structured specific parameters are used

In our business scenario, the review of medical qualification often pays more attention to specific fields , For example, category 、 Number , Address 、 full name , Validity period, etc , When using intelligent structured interface to identify medical qualification certificate , We need an intelligent structured interface to return these specific fields , For our further review .

After consulting the intelligent structured identification interface document , We found that we can customize the field name that the structured function needs to return , Pass in the corresponding parameters when requesting .

Pass in custom parameters , Let the intelligent structured interface return specific fields , Include ： Category 、 Number , Address 、 full name , The period of validity , The call logic is as follows （ Only the main logic , Incomplete code ）.

package main

import (
	"fmt"
	"github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/common"
	"github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/common/errors"
	"github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/common/profile"
	"github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/common/regions"
	ocr "github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/ocr/v20181119"
)

func main() {
	credential := common.NewCredential("secretId", "secretKey")
	client, _ := ocr.NewClient(credential, regions.Guangzhou, profile.NewClientProfile())

	request := ocr.SmartStructuralOCRRequest{
		ImageUrl: common.StringPtr("xxx") ,
		ItemNames: common.StringPtrs([]string{" Category "," Number "," Address "," full name "," The period of validity "}),
	}
	response, err := client.SmartStructuralOCR(request)

	if _, ok := err.(*errors.TencentCloudSDKError); ok {
		fmt.Printf("An API error has returned: %s", err)
		return
	}
	if err != nil {
		panic(err)
	}
	fmt.Printf("%s\n", response.ToJsonString())
}

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5、 Query the transferred quantity

After the successful interface call , We can do it in Tencent cloud character recognition console View the call details of the interface , Including adjustment amount 、 The amount of success 、 The amount of failure 、 Error code and other information .

Be careful ： After logging in the master account, you can view the call volume details of all accounts , Sub accounts can only query their own call volume details .

If you want to let the sub account also have permission to view the call details of all accounts , Can be in Usage query permission management page Empower the sub account , In this way, the sub account can also query the call volume of all accounts .

More Tencent cloud AI Intelligent structured recognition product information understanding ：https://cloud.tencent.com/product/smart-ocr