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Amazon Rekognition
Developer Guide

GetCelebrityRecognition

Gets the celebrity recognition results for a Rekognition Video analysis started by StartCelebrityRecognition.

Celebrity recognition in a video is an asynchronous operation. Analysis is started by a call to StartCelebrityRecognition which returns a job identifier (JobId). When the celebrity recognition operation finishes, Rekognition Video publishes a completion status to the Amazon Simple Notification Service topic registered in the initial call to StartCelebrityRecognition. To get the results of the celebrity recognition analysis, first check that the status value published to the Amazon SNS topic is SUCCEEDED. If so, call GetCelebrityDetection and pass the job identifier (JobId) from the initial call to StartCelebrityDetection. For more information, see Working with Stored Videos.

GetCelebrityRecognition returns detected celebrities and the time(s) they are detected in an array (Celebrities) of CelebrityRecognition objects. Each CelebrityRecognition contains information about the celebrity in a CelebrityDetail object and the time, Timestamp, the celebrity was detected.

Note

GetCelebrityRecognition only returns the default facial attributes (BoundingBox, Confidence, Landmarks, Pose, and Quality). The other facial attributes listed in the Face object of the following response syntax are not returned. For more information, see FaceDetail.

By default, the Celebrities array is sorted by time (milliseconds from the start of the video). You can also sort the array by celebrity by specifying the value ID in the SortBy input parameter.

The CelebrityDetail object includes the celebrity identifer and additional information urls. If you don't store the additional information urls, you can get them later by calling GetCelebrityInfo with the celebrity identifer.

No information is returned for faces not recognized as celebrities.

Use MaxResults parameter to limit the number of labels returned. If there are more results than specified in MaxResults, the value of NextToken in the operation response contains a pagination token for getting the next set of results. To get the next page of results, call GetCelebrityDetection and populate the NextToken request parameter with the token value returned from the previous call to GetCelebrityRecognition.

Request Syntax

{ "JobId": "string", "MaxResults": number, "NextToken": "string", "SortBy": "string" }

Request Parameters

The request accepts the following data in JSON format.

JobId

Job identifier for the required celebrity recognition analysis. You can get the job identifer from a call to StartCelebrityRecognition.

Type: String

Length Constraints: Minimum length of 1. Maximum length of 64.

Pattern: ^[a-zA-Z0-9-_]+$

Required: Yes

MaxResults

Maximum number of results to return per paginated call. The largest value you can specify is 1000. If you specify a value greater than 1000, a maximum of 1000 results is returned. The default value is 1000.

Type: Integer

Valid Range: Minimum value of 1.

Required: No

NextToken

If the previous response was incomplete (because there is more recognized celebrities to retrieve), Rekognition Video returns a pagination token in the response. You can use this pagination token to retrieve the next set of celebrities.

Type: String

Length Constraints: Maximum length of 255.

Required: No

SortBy

Sort to use for celebrities returned in Celebrities field. Specify ID to sort by the celebrity identifier, specify TIMESTAMP to sort by the time the celebrity was recognized.

Type: String

Valid Values: ID | TIMESTAMP

Required: No

Response Syntax

{ "Celebrities": [ { "Celebrity": { "BoundingBox": { "Height": number, "Left": number, "Top": number, "Width": number }, "Confidence": number, "Face": { "AgeRange": { "High": number, "Low": number }, "Beard": { "Confidence": number, "Value": boolean }, "BoundingBox": { "Height": number, "Left": number, "Top": number, "Width": number }, "Confidence": number, "Emotions": [ { "Confidence": number, "Type": "string" } ], "Eyeglasses": { "Confidence": number, "Value": boolean }, "EyesOpen": { "Confidence": number, "Value": boolean }, "Gender": { "Confidence": number, "Value": "string" }, "Landmarks": [ { "Type": "string", "X": number, "Y": number } ], "MouthOpen": { "Confidence": number, "Value": boolean }, "Mustache": { "Confidence": number, "Value": boolean }, "Pose": { "Pitch": number, "Roll": number, "Yaw": number }, "Quality": { "Brightness": number, "Sharpness": number }, "Smile": { "Confidence": number, "Value": boolean }, "Sunglasses": { "Confidence": number, "Value": boolean } }, "Id": "string", "Name": "string", "Urls": [ "string" ] }, "Timestamp": number } ], "JobStatus": "string", "NextToken": "string", "StatusMessage": "string", "VideoMetadata": { "Codec": "string", "DurationMillis": number, "Format": "string", "FrameHeight": number, "FrameRate": number, "FrameWidth": number } }

Response Elements

If the action is successful, the service sends back an HTTP 200 response.

The following data is returned in JSON format by the service.

Celebrities

Array of celebrities recognized in the video.

Type: Array of CelebrityRecognition objects

JobStatus

The current status of the celebrity recognition job.

Type: String

Valid Values: IN_PROGRESS | SUCCEEDED | FAILED

NextToken

If the response is truncated, Rekognition Video returns this token that you can use in the subsequent request to retrieve the next set of celebrities.

Type: String

Length Constraints: Maximum length of 255.

StatusMessage

If the job fails, StatusMessage provides a descriptive error message.

Type: String

VideoMetadata

Information about a video that Rekognition Video analyzed. Videometadata is returned in every page of paginated responses from a Rekognition Video operation.

Type: VideoMetadata object

Errors

AccessDeniedException

You are not authorized to perform the action.

HTTP Status Code: 400

InternalServerError

Amazon Rekognition experienced a service issue. Try your call again.

HTTP Status Code: 500

InvalidPaginationTokenException

Pagination token in the request is not valid.

HTTP Status Code: 400

InvalidParameterException

Input parameter violated a constraint. Validate your parameter before calling the API operation again.

HTTP Status Code: 400

ProvisionedThroughputExceededException

The number of requests exceeded your throughput limit. If you want to increase this limit, contact Amazon Rekognition.

HTTP Status Code: 400

ResourceNotFoundException

The collection specified in the request cannot be found.

HTTP Status Code: 400

ThrottlingException

Amazon Rekognition is temporarily unable to process the request. Try your call again.

HTTP Status Code: 500

See Also

For more information about using this API in one of the language-specific AWS SDKs, see the following: