3. Demultiplexing
This filter allows you to demultiplex a video based on its visual content. This is not based on a so-called quiet zone, as in some of our competitor’s products. The quiet zone approach will not work if the scene in the video changes drastically. Our approach looks at the image directly and sorts it to the appropriate movie. This allows the user to demultiplex all of the camera views into separate video clips. It is a universal demultiplexer since it does not read the multiplexer encoding on the videotape.
4. Denoise Filters
These 6 denoising filters allow you to remove noise in single frames or movie clips. The Median and Average Frames technique are based on classic image processing techniques. Movie Denoise, Remove Extrema, Total Variation Denoise, and JPEG Deblocker are all based on techniques developed by Cognitech scientists. Average Frames works well when there is no motion in your video; motion is addressed with our Reconstruction Methods.
5. Detection Filters
The detection filters perform a few different tasks. Frame Difference allows you to view the intensity difference between two frames of a movie. Gradient is a visualization tool that allows you to view the different adjacent pixels. Motion Detection detects motion in a video and outputs a boundary image of that movement. Edge Detection is similar to Motion Detection but it detects edges within the video and outputs it to a boundary image.
6. Editing
The editing filters allow you to cut and concatenate videos. Concatenation allows you to combine two different movies. Translational Crop allows you to use the glyph tools in Video Investigator to cut a movie to focus in on a object of interest.
7. Enhancement
The user can perform a histogram equalization technique to improve the contrast in the image.
8. Histogram Editor
The user can adjust the Red-Green-Blue (RGB) or Hue-Saturation-Intensity values in an image or movie.
9. Segmentation
The Segmentation filter allows you to analyze the content of a still or video. These techniques were developed by Cognitech’s scientists and used in the Reginald Denny Case investigation.
Cognitech, Inc. 2013