14. A non-transitory computer-readable storage medium, comprising instructions executable by a processor to: group images into events based on time-based clustering, wherein the images comprise relationship information; classify main characters of the images as to an event identification based on events in which they appear; determine relation circles of the main characters based on the event identifications; and construct a dynamic relation tree representative of relations among the main characters, wherein the dynamic relation tree provides representations of the positions of the main characters in the relation circles, and wherein representations and constituents of the dynamic relation tree change when different time periods are specified during display.
14. A non-transitory computer-readable storage medium, comprising instructions executable by a processor to: group images into events based on time-based clustering, wherein the images comprise relationship information; classify main characters of the images as to an event identification based on events in which they appear; determine relation circles of the main characters based on the event identifications; and construct a dynamic relation tree representative of relations among the main characters, wherein the dynamic relation tree provides representations of the positions of the main characters in the relation circles, and wherein representations and constituents of the dynamic relation tree change when different time periods are specified during display. 15. The non-transitory computer-readable storage medium of claim 14 , further comprising instructions executable to display views of the dynamic relation tree, wherein the views are navigable by selective zooming to display images associated with certain branches of the dynamic relation tree.