Gait Recognition - Symmetry Comparison

Once the symmetry for each of the subjects has been extracted, the results need to be compared to each other. Given that the images generated are all aligned correctly to one another from the batch processing stages, the comparison is simply a case of calculating the difference between the pixel data.

Instructions:

• Top of applet shows the image that is being processed
• The middle part of the applet shows top 5 matches to this image from the selected comparison data
  • A percentage match is given - indicates the percentage of pixels matched between input image and comparison images
  • The ticks and crosses indicate which of the results are from the same person as the input image
  • A tick at the top of the list therefore represents a successful match
• Image Set: Defines the list of source images that are available for comparison
  • Indoor Sample Set - the third gait cycle from each subject - chosen because these are not processed in the "Three Gait Averages" (see Comparison Data)
  • Indoor Subjects (00-06) - all the gait cycles for a particular subject
  • Indoor All - All the indoor images
  • Outdoor All - All the outdoor images - note that this set includes some subjects not present in the Comparison Data
• Test Image: selects the image to compare with the comparison data
• Comparison Data: Selects the dictionary of images to lookup the input image against
  • Single Gait Cycle - the 00th gait cycle for each subject is used at the comparison data
  • Three Gait Cycles - an average over three gait cycles - note that 03 is not used, so provides a true data comparison for the "Indoor Sample Set" of images
  • Seven Gait Average - uses all seven gait cycles to generate an images

The Java Applet is shown below:

Download this applet:

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