Rilevamento dei dispositivi di protezione individuale in un immagine

Per rilevare i dispositivi di protezione individuale (DPI) sulle persone in un'immagine, utilizzate l'operazione API DetectProtectiveEquipmentsenza archiviazione.

Puoi fornire l'immagine di input come matrice di byte dell'immagine (byte dell'immagine codificata in formato Base64) o come un oggetto Amazon S3 utilizzando AWS SDK o AWS Command Line Interface (AWS CLI). Questi esempi utilizzano un'immagine memorizzata in un bucket Amazon S3. Per ulteriori informazioni, consulta Lavorare con le immagini.

Per rilevare i DPI sulle persone in un'immagine

Se non lo hai già fatto:
1. Crea o aggiorna un utente con le autorizzazioni AmazonRekognitionFullAccess e AmazonS3ReadOnlyAccess. Per ulteriori informazioni, consulta Fase 1: impostazione di un account AWS e creazione di un utente.
2. Installa e configura gli AWS CLI e gli AWS SDK. Per ulteriori informazioni, consulta Passaggio 2: configura gli AWS SDK AWS CLI e.
Carica un'immagine (contenente una o più persone che indossano un DPI) nel bucket S3.

Per le istruzioni, consulta Caricamento di oggetti in Amazon S3 nella Guida per l'utente di Amazon Simple Storage Service.

Utilizzare i seguenti esempi per richiamare l'operazione DetectProtectiveEquipment. Per informazioni sulla visualizzazione dei riquadri di delimitazione in un'immagine, consultare Visualizzazione di riquadri di delimitazione.

Java

Questo esempio visualizza informazioni sui DPI rilevati sulle persone rilevate in un'immagine.

Modificare il valore di bucket con il nome del bucket Amazon S3 che contiene l’immagine. Modifica il valore di photo nel nome del file immagine.


//Copyright 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
//PDX-License-Identifier: MIT-0 (For details, see https://github.com/awsdocs/amazon-rekognition-developer-guide/blob/master/LICENSE-SAMPLECODE.)

package com.amazonaws.samples;
import com.amazonaws.client.builder.AwsClientBuilder;
import com.amazonaws.services.rekognition.AmazonRekognition;
import com.amazonaws.services.rekognition.AmazonRekognitionClientBuilder;
import com.amazonaws.services.rekognition.model.AmazonRekognitionException;
import com.amazonaws.services.rekognition.model.Image;
import com.amazonaws.services.rekognition.model.ProtectiveEquipmentBodyPart;
import com.amazonaws.services.rekognition.model.S3Object;
import com.amazonaws.services.rekognition.model.ProtectiveEquipmentPerson;
import com.amazonaws.services.rekognition.model.ProtectiveEquipmentSummarizationAttributes;

import java.util.List;
import com.amazonaws.services.rekognition.model.BoundingBox;
import com.amazonaws.services.rekognition.model.DetectProtectiveEquipmentRequest;
import com.amazonaws.services.rekognition.model.DetectProtectiveEquipmentResult;
import com.amazonaws.services.rekognition.model.EquipmentDetection;


public class DetectPPE {

    public static void main(String[] args) throws Exception {

        String photo = "photo";
        String bucket = "bucket";


        AmazonRekognition rekognitionClient = AmazonRekognitionClientBuilder.defaultClient();
        
        ProtectiveEquipmentSummarizationAttributes summaryAttributes = new ProtectiveEquipmentSummarizationAttributes()
                .withMinConfidence(80F)
                .withRequiredEquipmentTypes("FACE_COVER", "HAND_COVER", "HEAD_COVER");
                
        DetectProtectiveEquipmentRequest request = new DetectProtectiveEquipmentRequest()
                .withImage(new Image()
                        .withS3Object(new S3Object()
                                .withName(photo).withBucket(bucket)))
                .withSummarizationAttributes(summaryAttributes);

        try {
            System.out.println("Detected PPE for people in image " + photo);
            System.out.println("Detected people\n---------------");
            DetectProtectiveEquipmentResult result = rekognitionClient.detectProtectiveEquipment(request);


            List <ProtectiveEquipmentPerson> persons = result.getPersons();


            for (ProtectiveEquipmentPerson person: persons) {
                System.out.println("ID: " + person.getId());
                List<ProtectiveEquipmentBodyPart> bodyParts=person.getBodyParts();
                if (bodyParts.isEmpty()){
                    System.out.println("\tNo body parts detected");
                } else
                    for (ProtectiveEquipmentBodyPart bodyPart: bodyParts) {
                        System.out.println("\t" + bodyPart.getName() + ". Confidence: " + bodyPart.getConfidence().toString());



                        List<EquipmentDetection> equipmentDetections=bodyPart.getEquipmentDetections();

                        if (equipmentDetections.isEmpty()){
                            System.out.println("\t\tNo PPE Detected on " + bodyPart.getName());

                        } 
                        else {
                            for (EquipmentDetection item: equipmentDetections) {
                                System.out.println("\t\tItem: " + item.getType() + ". Confidence: " + item.getConfidence().toString());
                                System.out.println("\t\tCovers body part: " 
                                        + item.getCoversBodyPart().getValue().toString() + ". Confidence: " + item.getCoversBodyPart().getConfidence().toString());

                                System.out.println("\t\tBounding Box");
                                BoundingBox box =item.getBoundingBox();

                                System.out.println("\t\tLeft: " +box.getLeft().toString());
                                System.out.println("\t\tTop: " + box.getTop().toString());
                                System.out.println("\t\tWidth: " + box.getWidth().toString());
                                System.out.println("\t\tHeight: " + box.getHeight().toString());
                                System.out.println("\t\tConfidence: " + item.getConfidence().toString());
                                System.out.println();
                            }
                        }

                    }
            }
            System.out.println("Person ID Summary\n-----------------");
            
            //List<Integer> list=;
            DisplaySummary("With required equipment", result.getSummary().getPersonsWithRequiredEquipment());
            DisplaySummary("Without required equipment", result.getSummary().getPersonsWithoutRequiredEquipment());
            DisplaySummary("Indeterminate", result.getSummary().getPersonsIndeterminate());         
       
            
        } catch(AmazonRekognitionException e) {
            e.printStackTrace();
        }
    }
    static void DisplaySummary(String summaryType,List<Integer> idList)
    {
        System.out.print(summaryType + "\n\tIDs  ");
        if (idList.size()==0) {
            System.out.println("None");
        }
        else {
            int count=0;
            for (Integer id: idList ) { 
                if (count++ == idList.size()-1) {
                    System.out.println(id.toString());
                }
                else {
                    System.out.print(id.toString() + ", ");
                }
            }
        }
                    
        System.out.println();
        
    
    }
}

Java V2

Questo codice è tratto dal repository degli esempi GitHub di AWS Documentation SDK. Guarda l'esempio completo qui.


//snippet-start:[rekognition.java2.detect_ppe.import]
import software.amazon.awssdk.auth.credentials.ProfileCredentialsProvider;
import software.amazon.awssdk.core.ResponseBytes;
import software.amazon.awssdk.core.SdkBytes;
import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.rekognition.RekognitionClient;
import software.amazon.awssdk.services.rekognition.model.BoundingBox;
import software.amazon.awssdk.services.rekognition.model.DetectProtectiveEquipmentRequest;
import software.amazon.awssdk.services.rekognition.model.DetectProtectiveEquipmentResponse;
import software.amazon.awssdk.services.rekognition.model.EquipmentDetection;
import software.amazon.awssdk.services.rekognition.model.ProtectiveEquipmentBodyPart;
import software.amazon.awssdk.services.rekognition.model.ProtectiveEquipmentSummarizationAttributes;
import software.amazon.awssdk.services.rekognition.model.Image;
import software.amazon.awssdk.services.rekognition.model.RekognitionException;
import software.amazon.awssdk.services.s3.S3Client;
import software.amazon.awssdk.services.s3.model.GetObjectRequest;
import software.amazon.awssdk.services.s3.model.GetObjectResponse;
import software.amazon.awssdk.services.s3.model.S3Exception;
import software.amazon.awssdk.services.rekognition.model.ProtectiveEquipmentPerson;
import java.io.ByteArrayInputStream;
import java.io.InputStream;
import java.util.List;
//snippet-end:[rekognition.java2.detect_ppe.import]

/**
* Before running this Java V2 code example, set up your development environment, including your credentials.
*
* For more information, see the following documentation topic:
*
* https://docs.aws.amazon.com/sdk-for-java/latest/developer-guide/get-started.html
*/
public class DetectPPE {

 public static void main(String[] args) {

     final String usage = "\n" +
         "Usage: " +
         "   <sourceImage> <bucketName>\n\n" +
         "Where:\n" +
         "   sourceImage - The name of the image in an Amazon S3 bucket (for example, people.png). \n\n" +
         "   bucketName - The name of the Amazon S3 bucket (for example, myBucket). \n\n";

     if (args.length != 2) {
          System.out.println(usage);
          System.exit(1);
     }

     String sourceImage = args[0];
     String bucketName = args[1];
     Region region = Region.US_WEST_2;
     S3Client s3 = S3Client.builder()
         .region(region)
         .credentialsProvider(ProfileCredentialsProvider.create("profile-name"))
         .build();

     RekognitionClient rekClient = RekognitionClient.builder()
         .region(region)
         .credentialsProvider(ProfileCredentialsProvider.create("profile-name"))
         .build();

     displayGear(s3, rekClient, sourceImage, bucketName) ;
     s3.close();
     rekClient.close();
     System.out.println("This example is done!");
 }

 // snippet-start:[rekognition.java2.detect_ppe.main]
 public static void displayGear(S3Client s3,
                                RekognitionClient rekClient,
                                String sourceImage,
                                String bucketName) {

     byte[] data = getObjectBytes (s3, bucketName, sourceImage);
     InputStream is = new ByteArrayInputStream(data);

     try {
         ProtectiveEquipmentSummarizationAttributes summarizationAttributes = ProtectiveEquipmentSummarizationAttributes.builder()
             .minConfidence(80F)
             .requiredEquipmentTypesWithStrings("FACE_COVER", "HAND_COVER", "HEAD_COVER")
             .build();

         SdkBytes sourceBytes = SdkBytes.fromInputStream(is);
         software.amazon.awssdk.services.rekognition.model.Image souImage = Image.builder()
             .bytes(sourceBytes)
             .build();

         DetectProtectiveEquipmentRequest request = DetectProtectiveEquipmentRequest.builder()
             .image(souImage)
             .summarizationAttributes(summarizationAttributes)
             .build();

         DetectProtectiveEquipmentResponse result = rekClient.detectProtectiveEquipment(request);
         List<ProtectiveEquipmentPerson> persons = result.persons();
         for (ProtectiveEquipmentPerson person: persons) {
             System.out.println("ID: " + person.id());
             List<ProtectiveEquipmentBodyPart> bodyParts=person.bodyParts();
             if (bodyParts.isEmpty()){
                 System.out.println("\tNo body parts detected");
             } else
                 for (ProtectiveEquipmentBodyPart bodyPart: bodyParts) {
                     System.out.println("\t" + bodyPart.name() + ". Confidence: " + bodyPart.confidence().toString());
                     List<EquipmentDetection> equipmentDetections=bodyPart.equipmentDetections();

                     if (equipmentDetections.isEmpty()){
                         System.out.println("\t\tNo PPE Detected on " + bodyPart.name());
                     } else {
                         for (EquipmentDetection item: equipmentDetections) {
                             System.out.println("\t\tItem: " + item.type() + ". Confidence: " + item.confidence().toString());
                             System.out.println("\t\tCovers body part: "
                                     + item.coversBodyPart().value().toString() + ". Confidence: " + item.coversBodyPart().confidence().toString());

                             System.out.println("\t\tBounding Box");
                             BoundingBox box =item.boundingBox();
                             System.out.println("\t\tLeft: " +box.left().toString());
                             System.out.println("\t\tTop: " + box.top().toString());
                             System.out.println("\t\tWidth: " + box.width().toString());
                             System.out.println("\t\tHeight: " + box.height().toString());
                             System.out.println("\t\tConfidence: " + item.confidence().toString());
                             System.out.println();
                         }
                     }
                 }
         }
         System.out.println("Person ID Summary\n-----------------");

         displaySummary("With required equipment", result.summary().personsWithRequiredEquipment());
         displaySummary("Without required equipment", result.summary().personsWithoutRequiredEquipment());
         displaySummary("Indeterminate", result.summary().personsIndeterminate());

     } catch (RekognitionException e) {
         e.printStackTrace();
         System.exit(1);
     }
 }

 public static byte[] getObjectBytes (S3Client s3, String bucketName, String keyName) {

     try {
         GetObjectRequest objectRequest = GetObjectRequest
             .builder()
             .key(keyName)
             .bucket(bucketName)
             .build();

         ResponseBytes<GetObjectResponse> objectBytes = s3.getObjectAsBytes(objectRequest);
         return objectBytes.asByteArray();

     } catch (S3Exception e) {
         System.err.println(e.awsErrorDetails().errorMessage());
         System.exit(1);
     }
     return null;
 }

 static void displaySummary(String summaryType,List<Integer> idList) {
     System.out.print(summaryType + "\n\tIDs  ");
     if (idList.size()==0) {
         System.out.println("None");
     } else {
         int count=0;
         for (Integer id: idList ) {
             if (count++ == idList.size()-1) {
                 System.out.println(id.toString());
             } else {
                 System.out.print(id.toString() + ", ");
             }
         }
     }
     System.out.println();
 }
 // snippet-end:[rekognition.java2.detect_ppe.main]
}

AWS CLI

Questo AWS CLI comando richiede un riepilogo PPE e visualizza l'output JSON per l'operazione CLIdetect-protective-equipment.

Sostituisci bucketname con il nome di un bucket Amazon S3 contenente un'immagine. Sostituisci input.jpg con il nome dell'immagine che si desidera utilizzare.


aws rekognition detect-protective-equipment \
  --image "S3Object={Bucket=bucketname,Name=input.jpg}" \
  --summarization-attributes "MinConfidence=80,RequiredEquipmentTypes=['FACE_COVER','HAND_COVER','HEAD_COVER']"

Questo AWS CLI comando visualizza l'output JSON per l'operazione detect-protective-equipment CLI.

Sostituisci bucketname con il nome di un bucket Amazon S3 contenente un'immagine. Sostituisci input.jpg con il nome dell'immagine che si desidera utilizzare.


aws rekognition detect-protective-equipment \
  --image "S3Object={Bucket=bucketname,Name=input.jpg}"

Python

Questo esempio visualizza informazioni sui DPI rilevati sulle persone rilevate in un'immagine.

Modificare il valore di bucket con il nome del bucket Amazon S3 che contiene l’immagine. Modifica il valore di photo nel nome del file immagine. Sostituisci il valore di profile_name nella riga che crea la sessione di Rekognition con il nome del tuo profilo di sviluppatore.


# Copyright 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
# PDX-License-Identifier: MIT-0 (For details, see https://github.com/awsdocs/amazon-rekognition-developer-guide/blob/master/LICENSE-SAMPLECODE.)

import boto3

def detect_ppe(photo, bucket):

    session = boto3.Session(profile_name='profile-name')
    client = session.client('rekognition')

    response = client.detect_protective_equipment(Image={'S3Object': {'Bucket': bucket, 'Name': photo}},
                                                  SummarizationAttributes={'MinConfidence': 80,
                                                                           'RequiredEquipmentTypes': ['FACE_COVER',
                                                                                                      'HAND_COVER',
                                                                                                      'HEAD_COVER']})

    print('Detected PPE for people in image ' + photo)
    print('\nDetected people\n---------------')
    for person in response['Persons']:

        print('Person ID: ' + str(person['Id']))
        print('Body Parts\n----------')
        body_parts = person['BodyParts']
        if len(body_parts) == 0:
            print('No body parts found')
        else:
            for body_part in body_parts:
                print('\t' + body_part['Name'] + '\n\t\tConfidence: ' + str(body_part['Confidence']))
                print('\n\t\tDetected PPE\n\t\t------------')
                ppe_items = body_part['EquipmentDetections']
                if len(ppe_items) == 0:
                    print('\t\tNo PPE detected on ' + body_part['Name'])
                else:
                    for ppe_item in ppe_items:
                        print('\t\t' + ppe_item['Type'] + '\n\t\t\tConfidence: ' + str(ppe_item['Confidence']))
                        print('\t\tCovers body part: ' + str(
                            ppe_item['CoversBodyPart']['Value']) + '\n\t\t\tConfidence: ' + str(
                            ppe_item['CoversBodyPart']['Confidence']))
                        print('\t\tBounding Box:')
                        print('\t\t\tTop: ' + str(ppe_item['BoundingBox']['Top']))
                        print('\t\t\tLeft: ' + str(ppe_item['BoundingBox']['Left']))
                        print('\t\t\tWidth: ' + str(ppe_item['BoundingBox']['Width']))
                        print('\t\t\tHeight: ' + str(ppe_item['BoundingBox']['Height']))
                        print('\t\t\tConfidence: ' + str(ppe_item['Confidence']))
            print()
        print()

    print('Person ID Summary\n----------------')
    display_summary('With required equipment', response['Summary']['PersonsWithRequiredEquipment'])
    display_summary('Without required equipment', response['Summary']['PersonsWithoutRequiredEquipment'])
    display_summary('Indeterminate', response['Summary']['PersonsIndeterminate'])

    print()
    return len(response['Persons'])

# Display summary information for supplied summary.
def display_summary(summary_type, summary):
    print(summary_type + '\n\tIDs: ', end='')
    if (len(summary) == 0):
        print('None')
    else:
        for num, id in enumerate(summary, start=0):
            if num == len(summary) - 1:
                print(id)
            else:
                print(str(id) + ', ', end='')

def main():
    photo = 'photo-name'
    bucket = 'bucket-name'
    person_count = detect_ppe(photo, bucket)
    print("Persons detected: " + str(person_count))

if __name__ == "__main__":
    main()

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Convenzioni dei documenti

Comprensione dell'API di rilevamento dei DPI

Esempio: riquadri di delimitazione e protezioni dei volti