Evidence Manager Tutorial 54:

Pre-redaction Tasks

TOC

CH1: Overview

CH2: Configuring Evidence Manager

CH3: Managing Devices

CH4: Managing Docking Stations

CH5: Managing Evidence

CH:6 Using Evidence Player

CH7: EM Redaction

CH8: Reference Reads

Pre-requisite Tasks

Before you begin, you must do the following:

  • Create a local copy of the video you wish to redact
  • Open the video file to redact
  • Select the tile that plays the video you want to redact

Creating a Local Copy of the Video

To create a local copy of the video you want to redact, save or export the video. This way, the source file is not altered in anyway.

Start by carefully reviewing the source file, and then using either of these methods to create a local copy:

  • Saving a video
    Evidence Manager opens the Save Video window in order to complete the save operation.
  • Exporting a video
  • Evidence Manager opens the Save Video window for you to complete the export operation with a time preset of 15 minutes. You can however, change the time if you feel the need to.

For instructions, see Saving or Exporting a Video.

NOTE: Video Extension

Evidence Manager can redact videos only if they are in the MP4 format. Therefore, you must save or export sources files as MP4 videos.

Opening a Video File for Redaction

After creating a local copy of the video file you want to redact, open this local copy in Evidence Manager. To open a video file, follow the instructions given in Opening Videos.

NOTE: Video Plays Only in One Tile

Evidence Manager supports only one video stream for MP4 files. That is why the MP4 plays only in one tile.

Selecting a Tile for Redaction

Before you can finally redact the video you opened, you must select the tile in which the video plays. Evidence Manager will redact only the elements playing in the tile you select. You can only select one tile at a time.

To select a tile for redaction:

  1. Open the video that you want to redact.
  2. Go to File > Redaction > Redact Tile.
    -OR-
    Click the Redact Tile icon.
    -OR-
    Right-click the tile where the video you want to redact is playing, and click Redact This Tile.

The video opens in a single tile. Redaction menu options appear on the Evidence Manager UI.

Redaction Methods

You can choose to redact a video using one of the following methods. The method you choose depends on the elements you want to redact, how long you want for them to be redacted, and how they move around in the video.

  • If you want Evidence Manager to automatically recognize faces, and redact them for the duration you specify, use the automatic face redaction method.
  • If you want Evidence Manager to first identify sensitive elements within a video, and then draw bounding boxes covering the elements, use the manual element selection method. You can select the following types of elements: Static, Auto Track, and Manual Track.
    • The Static element allows you to select an element such as a license plate, which appears at a single location throughout the video.
    • The Auto Track element allows you to redact elements that appear throughout the video, but not necessarily at the same location.
    • The Manual Track element allows you to redact elements that might be partially obscured when stationary, or might be moving in such a way that they might not be detected.

Tutorials 54, 55, 56, and 57 describe the four methods of redaction. 

NOTE: Quick Help

For quick help on redacting elements, once the redaction menu items appear on the Evidence Manager interface, find the pencil () icon in the bottom-right corner, and click it. 

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