AWS Tools for Windows PowerShell
Command Reference

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Synopsis

Calls the Amazon Rekognition StartSegmentDetection API operation.

Syntax

Start-REKSegmentDetection
-Video <Video>
-ClientRequestToken <String>
-JobTag <String>
-BlackFrame_MaxPixelThreshold <Single>
-BlackFrame_MinCoveragePercentage <Single>
-ShotFilter_MinSegmentConfidence <Single>
-TechnicalCueFilter_MinSegmentConfidence <Single>
-NotificationChannel_RoleArn <String>
-SegmentType <String[]>
-NotificationChannel_SNSTopicArn <String>
-Select <String>
-Force <SwitchParameter>
-ClientConfig <AmazonRekognitionConfig>

Description

Starts asynchronous detection of segment detection in a stored video. Amazon Rekognition Video can detect segments in a video stored in an Amazon S3 bucket. Use Video to specify the bucket name and the filename of the video. StartSegmentDetection returns a job identifier (JobId) which you use to get the results of the operation. When segment detection is finished, Amazon Rekognition Video publishes a completion status to the Amazon Simple Notification Service topic that you specify in NotificationChannel. You can use the Filters (StartSegmentDetectionFilters) input parameter to specify the minimum detection confidence returned in the response. Within Filters, use ShotFilter (StartShotDetectionFilter) to filter detected shots. Use TechnicalCueFilter (StartTechnicalCueDetectionFilter) to filter technical cues. To get the results of the segment detection operation, first check that the status value published to the Amazon SNS topic is SUCCEEDED. if so, call GetSegmentDetection and pass the job identifier (JobId) from the initial call to StartSegmentDetection. For more information, see Detecting video segments in stored video in the Amazon Rekognition Developer Guide.

Parameters

-BlackFrame_MaxPixelThreshold <Single>
A threshold used to determine the maximum luminance value for a pixel to be considered black. In a full color range video, luminance values range from 0-255. A pixel value of 0 is pure black, and the most strict filter. The maximum black pixel value is computed as follows: max_black_pixel_value = minimum_luminance + MaxPixelThreshold *luminance_range.For example, for a full range video with BlackPixelThreshold = 0.1, max_black_pixel_value is 0 + 0.1 * (255-0) = 25.5.The default value of MaxPixelThreshold is 0.2, which maps to a max_black_pixel_value of 51 for a full range video. You can lower this threshold to be more strict on black levels.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesFilters_TechnicalCueFilter_BlackFrame_MaxPixelThreshold
-BlackFrame_MinCoveragePercentage <Single>
The minimum percentage of pixels in a frame that need to have a luminance below the max_black_pixel_value for a frame to be considered a black frame. Luminance is calculated using the BT.709 matrix. The default value is 99, which means at least 99% of all pixels in the frame are black pixels as per the MaxPixelThreshold set. You can reduce this value to allow more noise on the black frame.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesFilters_TechnicalCueFilter_BlackFrame_MinCoveragePercentage
-ClientConfig <AmazonRekognitionConfig>
Amazon.PowerShell.Cmdlets.REK.AmazonRekognitionClientCmdlet.ClientConfig
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
-ClientRequestToken <String>
Idempotent token used to identify the start request. If you use the same token with multiple StartSegmentDetection requests, the same JobId is returned. Use ClientRequestToken to prevent the same job from being accidently started more than once.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
-Force <SwitchParameter>
This parameter overrides confirmation prompts to force the cmdlet to continue its operation. This parameter should always be used with caution.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
-JobTag <String>
An identifier you specify that's returned in the completion notification that's published to your Amazon Simple Notification Service topic. For example, you can use JobTag to group related jobs and identify them in the completion notification.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
-NotificationChannel_RoleArn <String>
The ARN of an IAM role that gives Amazon Rekognition publishing permissions to the Amazon SNS topic.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
-NotificationChannel_SNSTopicArn <String>
The Amazon SNS topic to which Amazon Rekognition posts the completion status.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
-SegmentType <String[]>
An array of segment types to detect in the video. Valid values are TECHNICAL_CUE and SHOT. Starting with version 4 of the SDK this property will default to null. If no data for this property is returned from the service the property will also be null. This was changed to improve performance and allow the SDK and caller to distinguish between a property not set or a property being empty to clear out a value. To retain the previous SDK behavior set the AWSConfigs.InitializeCollections static property to true.
Required?True
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesSegmentTypes
-Select <String>
Use the -Select parameter to control the cmdlet output. The default value is 'JobId'. Specifying -Select '*' will result in the cmdlet returning the whole service response (Amazon.Rekognition.Model.StartSegmentDetectionResponse). Specifying the name of a property of type Amazon.Rekognition.Model.StartSegmentDetectionResponse will result in that property being returned. Specifying -Select '^ParameterName' will result in the cmdlet returning the selected cmdlet parameter value.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
-ShotFilter_MinSegmentConfidence <Single>
Specifies the minimum confidence that Amazon Rekognition Video must have in order to return a detected segment. Confidence represents how certain Amazon Rekognition is that a segment is correctly identified. 0 is the lowest confidence. 100 is the highest confidence. Amazon Rekognition Video doesn't return any segments with a confidence level lower than this specified value.If you don't specify MinSegmentConfidence, the GetSegmentDetection returns segments with confidence values greater than or equal to 50 percent.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesFilters_ShotFilter_MinSegmentConfidence
-TechnicalCueFilter_MinSegmentConfidence <Single>
Specifies the minimum confidence that Amazon Rekognition Video must have in order to return a detected segment. Confidence represents how certain Amazon Rekognition is that a segment is correctly identified. 0 is the lowest confidence. 100 is the highest confidence. Amazon Rekognition Video doesn't return any segments with a confidence level lower than this specified value.If you don't specify MinSegmentConfidence, GetSegmentDetection returns segments with confidence values greater than or equal to 50 percent.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesFilters_TechnicalCueFilter_MinSegmentConfidence
-Video <Video>
The service has not provided documentation for this parameter; please refer to the service's API reference documentation for the latest available information.
Required?True
Position?1
Accept pipeline input?True (ByValue, ByPropertyName)

Common Credential and Region Parameters

-AccessKey <String>
The AWS access key for the user account. This can be a temporary access key if the corresponding session token is supplied to the -SessionToken parameter.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesAK
-Credential <AWSCredentials>
An AWSCredentials object instance containing access and secret key information, and optionally a token for session-based credentials.
Required?False
Position?Named
Accept pipeline input?True (ByValue, ByPropertyName)
-EndpointUrl <String>
The endpoint to make the call against.Note: This parameter is primarily for internal AWS use and is not required/should not be specified for normal usage. The cmdlets normally determine which endpoint to call based on the region specified to the -Region parameter or set as default in the shell (via Set-DefaultAWSRegion). Only specify this parameter if you must direct the call to a specific custom endpoint.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
-NetworkCredential <PSCredential>
Used with SAML-based authentication when ProfileName references a SAML role profile. Contains the network credentials to be supplied during authentication with the configured identity provider's endpoint. This parameter is not required if the user's default network identity can or should be used during authentication.
Required?False
Position?Named
Accept pipeline input?True (ByValue, ByPropertyName)
-ProfileLocation <String>
Used to specify the name and location of the ini-format credential file (shared with the AWS CLI and other AWS SDKs)If this optional parameter is omitted this cmdlet will search the encrypted credential file used by the AWS SDK for .NET and AWS Toolkit for Visual Studio first. If the profile is not found then the cmdlet will search in the ini-format credential file at the default location: (user's home directory)\.aws\credentials.If this parameter is specified then this cmdlet will only search the ini-format credential file at the location given.As the current folder can vary in a shell or during script execution it is advised that you use specify a fully qualified path instead of a relative path.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesAWSProfilesLocation, ProfilesLocation
-ProfileName <String>
The user-defined name of an AWS credentials or SAML-based role profile containing credential information. The profile is expected to be found in the secure credential file shared with the AWS SDK for .NET and AWS Toolkit for Visual Studio. You can also specify the name of a profile stored in the .ini-format credential file used with the AWS CLI and other AWS SDKs.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesStoredCredentials, AWSProfileName
-Region <Object>
The system name of an AWS region or an AWSRegion instance. This governs the endpoint that will be used when calling service operations. Note that the AWS resources referenced in a call are usually region-specific.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesRegionToCall
-SecretKey <String>
The AWS secret key for the user account. This can be a temporary secret key if the corresponding session token is supplied to the -SessionToken parameter.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesSK, SecretAccessKey
-SessionToken <String>
The session token if the access and secret keys are temporary session-based credentials.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesST

Outputs

System.String or Amazon.Rekognition.Model.StartSegmentDetectionResponse
This cmdlet returns a System.String object. The service call response (type Amazon.Rekognition.Model.StartSegmentDetectionResponse) can be returned by specifying '-Select *'.
AWS Tools for PowerShell User Guide

Supported Version

AWS Tools for PowerShell: 2.x.y.z