Scene tagging: image-based CAPTCHA using image composition and object relationships.

Peter Matthews Cliff Changchun Zou

Published in: AsiaCCS (2010)

Keyphrases

image composition
image generation
multiple objects
complex scenes
moving objects
d objects
target object
three dimensional
d scene
dynamic scenes
image sequences
object segmentation
computer vision
geometric information
object classes
input image
object recognition
camera views
image processing