阿里云高校计划视觉AI五天训练营 Day04 学习笔记

2021-08-01 10:56:53

Day 04

作者：第五组邓佳阳

打卡截图

学习笔记

车辆保险应用系统搭建

开通OSS

直观解释：云上存储

蛮考验后端写API的，按照Restful规格写就比较合理。
注意：无论是OSS还是API，尽量都放在一个地区

寻找需要的API

阿里云视觉智能开放平台闪亮登场，根据查询往期内容，会用到三个功能：

车辆部件识别
车辆损伤识别
车险图片分类

1.车辆部件识别
检测图片中车辆部件的位置以及名称。

2.车辆损伤识别
针对常见小汽车车型，识别车辆外观受损部件及损伤类型，可识别数十种车辆部件、五大类外观损伤。（刮擦、凹陷、开裂、褶皱、穿孔）

3.车险图片分类
对输入的车险图片进行分类。

实现

图片来源于 "鸭梨亚"

导入MAVEN

Apache MAVEN 解决第三方依赖

<dependency>
    <groupId>com.aliyun.oss</groupId>
    <artifactId>aliyun-sdk-oss</artifactId>
    <version>3.8.0</version>
</dependency>

<dependency>
    <groupId>com.aliyun</groupId>
    <artifactId>aliyun-java-sdk-core</artifactId>
    <version>4.4.8</version>
</dependency>
<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>fastjson</artifactId>
    <version>1.2.52</version>
</dependency>
<dependency>
    <groupId>com.aliyun</groupId>
    <artifactId>aliyun-java-sdk-objectdet</artifactId>
    <version>1.0.7</version>
</dependency>

类

uploadPic类：本地上传至OSS；
RecognizeVehicleParts类：车辆部件识别；
ecognizeVehicleDamage类：车辆损坏识别；
ClassifyVehicleInsurance类：车险图片分类。

jpackage com.example.demo;

import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;

import java.io.File;
import java.net.URL;
import java.security.SecureRandom;
import java.util.Date;
import java.lang.*;
import java.util.Scanner;

public class UploadPic {
    public static String UploadPic(){
        // Endpoint以杭州为例，其它Region请按实际情况填写。
        String endpoint = "oss-cn-shanghai.aliyuncs.com";
        // 阿里云主账号AccessKey。
        String accessKeyId = "*************";
        String accessKeySecret = "*************";
        //本地文件名
        System.out.println("请输入本地图片path:");
        Scanner scanner = new Scanner(System.in);
        String fileName = scanner.nextLine();
        String bucketName = "auto-insurance-pic";
        // 获取文件的后缀名
        String suffixName = fileName.substring(fileName.lastIndexOf("."));

        // 生成上传文件名
        String objectName = System.currentTimeMillis() + "" + new SecureRandom().nextInt(0x0400) + suffixName;


        // 创建OSSClient实例。
        OSS ossClient = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);


        // 如果需要上传时设置存储类型与访问权限，请参考以下示例代码。
        // ObjectMetadata metadata = new ObjectMetadata();
        // metadata.setHeader(OSSHeaders.OSS_STORAGE_CLASS, StorageClass.Standard.toString());
        // metadata.setObjectAcl(CannedAccessControlList.Private);
        // putObjectRequest.setMetadata(metadata);

        // 上传文件。
        ossClient.putObject(bucketName, objectName, new File(fileName));
        // 设置URL过期时间为1小时。
        Date expiration = new Date(System.currentTimeMillis() + 3600 * 1000);
        // 生成以GET方法访问的签名URL，访客可以直接通过浏览器访问相关内容。
        URL url = ossClient.generatePresignedUrl(bucketName, objectName, expiration);

        // 关闭OSSClient。
        ossClient.shutdown();

        return url.toString();
    }
}

package com.example.demo;

import com.aliyuncs.DefaultAcsClient;
import com.aliyuncs.IAcsClient;
import com.aliyuncs.exceptions.ClientException;
import com.aliyuncs.exceptions.ServerException;
import com.aliyuncs.profile.DefaultProfile;
import com.example.demo.UploadPic;
import com.google.gson.Gson;
import java.util.*;
import com.aliyuncs.objectdet.model.v20191230.*;

public class RecognizeVehicleParts {

    public static void main(String[] args) {
        DefaultProfile profile = DefaultProfile.getProfile("cn-shanghai", "accessKeyId", "accessKeySecret");
        IAcsClient client = new DefaultAcsClient(profile);

        RecognizeVehiclePartsRequest request = new RecognizeVehiclePartsRequest();
        request.setRegionId("cn-shanghai");
        request.setImageURL(UploadPic.UploadPic());

        try {
            RecognizeVehiclePartsResponse response = client.getAcsResponse(request);
            System.out.println(new Gson().toJson(response));
        } catch (ServerException e) {
            e.printStackTrace();
        } catch (ClientException e) {
            System.out.println("ErrCode:" + e.getErrCode());
            System.out.println("ErrMsg:" + e.getErrMsg());
            System.out.println("RequestId:" + e.getRequestId());
        }
    }
}

package com.example.demo;

import com.aliyuncs.DefaultAcsClient;
import com.aliyuncs.IAcsClient;
import com.aliyuncs.exceptions.ClientException;
import com.aliyuncs.exceptions.ServerException;
import com.aliyuncs.profile.DefaultProfile;
import com.google.gson.Gson;
import java.util.*;
import com.aliyuncs.objectdet.model.v20191230.*;

public class RecognizeVehicleDamage {

    public static void main(String[] args) {
        DefaultProfile profile = DefaultProfile.getProfile("cn-shanghai", "accessKeyId", "accessKeySecret");
        IAcsClient client = new DefaultAcsClient(profile);

        RecognizeVehicleDamageRequest request = new RecognizeVehicleDamageRequest();
        request.setRegionId("cn-shanghai");
        request.setImageURL(UploadPic.UploadPic());

        try {
            RecognizeVehicleDamageResponse response = client.getAcsResponse(request);
            System.out.println(new Gson().toJson(response));
        } catch (ServerException e) {
            e.printStackTrace();
        } catch (ClientException e) {
            System.out.println("ErrCode:" + e.getErrCode());
            System.out.println("ErrMsg:" + e.getErrMsg());
            System.out.println("RequestId:" + e.getRequestId());
        }
    }
}

package com.example.demo;

import com.aliyuncs.DefaultAcsClient;
import com.aliyuncs.IAcsClient;
import com.aliyuncs.exceptions.ClientException;
import com.aliyuncs.exceptions.ServerException;
import com.aliyuncs.profile.DefaultProfile;
import com.google.gson.Gson;
import java.util.*;
import com.aliyuncs.objectdet.model.v20191230.*;

public class ClassifyVehicleInsurance {

    public static void main(String[] args) {
        DefaultProfile profile = DefaultProfile.getProfile("cn-shanghai", "accessKeyId", "accessKeySecret");
        IAcsClient client = new DefaultAcsClient(profile);

        ClassifyVehicleInsuranceRequest request = new ClassifyVehicleInsuranceRequest();
        request.setRegionId("cn-shanghai");
        request.setImageURL(UploadPic.UploadPic());

        try {
            ClassifyVehicleInsuranceResponse response = client.getAcsResponse(request);
            System.out.println(new Gson().toJson(response));
        } catch (ServerException e) {
            e.printStackTrace();
        } catch (ClientException e) {
            System.out.println("ErrCode:" + e.getErrCode());
            System.out.println("ErrMsg:" + e.getErrMsg());
            System.out.println("RequestId:" + e.getRequestId());
        }
    }
}

结果

返回值

{"requestId":"87BEADED-F581-4C38-9F5F-E6F8DF0A1BA5","data":{"threshold":0.0,"labels":[{"score":0.0046,"name":"others"},{"score":0.0164,"name":"detail"},{"score":0.1934,"name":"component"},{"score":0.0,"name":"vin"},{"score":8.0E-4,"name":"people"},{"score":2.0E-4,"name":"motor"},{"score":0.1439,"name":"semi-car"},{"score":0.0027,"name":"panoramic"},{"score":3.0E-4,"name":"license"},{"score":0.0169,"name":"CT-scan"},{"score":5.0E-4,"name":"truck"},{"score":0.0144,"name":"disassembly"},{"score":0.6059,"name":"scene"}]}}

总结

牛人太多了，我太菜了。

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