Strengths and Weaknesses

Facial Comparison Visualization

Strengths:

  • Gives a clear representation of which ratios differ when comparing two faces and also by the amount by hich they differ.
  • Generating the shape with all measurements emanating from a central point outwards allows the information of each ratio to be easily processed while still having an overview of the entire space.
  • The shape does not provide exact values of the ratios but this is not need as we are only trying to represent differences in certain components. The inclusion of numeric values on the visual would add unnecessary complexity.
  • Weaknesses:

  • The shape of the visualisation will change depending on the order that the ratios appear in. This however does not affect the ability to see differences between the two shapes. The ratios will always appear in the same order so that there is consistency.
  • The comparison of ratios in the same face are more difficult to observe from this visualisation. It is for this reason that we provided the second visualisation that focuses on a single face.
  • The shape is comprised of very sharp and jagged lines. This would be better off as curved lines to make it more visually appealing, unfortunately time constraints meant we were unable to implement curves
  • Symmetry Comparison Visualization

    Strengths:

  • There is concrete information being issued, actual feature distances are visualized
  • The viewer can instantly differentiate each side’s differences due to pattern recognition of each side’s shape silhouette
  • Specific magnitude of feature difference available through the symmetry lines of different colours and widths
  • Instinctive, simple to comprehend
  • Weaknesses:

  • The extent to which actual symmetry is displayed is unknown as vertical differences are not taken into account
  • Reference to legend may be required for each visual query
  • Limited by accuracy of user pin-selection input