منابع مشابه
High-resolution polarisation vision in a cuttlefish
Figure 1. High-resolution polarisation vision in Sepia plangon improves image contrast. (A) S. plangon responded to looming stimuli that differed in angle of polarisation from the background with an innate deimatic diplay (brightening of body colour). Left portion = pre-stimulus; right portion = post stimulus. (B) Normalized response strength (see Supplemental Information for further details) d...
متن کاملA New Approach to Automatic Reconstruction of a 3-D World Using Active Stereo Vision
In this paper, we propose a new automatic approach to reconstructing 3-D environments using an active binocular head. To efficiently store and access the depth estimates, we propose the use of an inverse polar octree which can transform both unbounded depth estimates and unbounded estimation errors into a bounded 3-D space with appropriate resolution. The depth estimates are computed by using t...
متن کاملCAGD based 3-D vision
This paDer presents the initial results Of our work in using the Computer Aided Geometric Design (CAGD) representations and models as a basis for the visual recognition of 3-D objects for obotic applications. We describe some techniques and algorithms Which allow the generation of computer representations and geometric models of complicated realizable 3-0 objects in a systematic manner. These r...
متن کاملIntensity based stereo vision: from 3-D to 3-D
In this paper, we present a new intensity based technique for recovering depth information from two or more images. Our method uses planar patches to approximate 3-D surfaces. In order to recover the depth information, the view-line constraint and the imaging geometry are introduced. The view-line constraint is used to restrict the position of a planar patch. From the constraint we can get the ...
متن کاملNight vision by cuttlefish enables changeable camouflage.
Because visual predation occurs day and night, many predators must have good night vision. Prey therefore exhibit antipredator behaviours in very dim light. In the field, the giant Australian cuttlefish (Sepia apama) assumes camouflaged body patterns at night, each tailored to its immediate environment. However, the question of whether cuttlefish have the perceptual capability to change their c...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Frontiers in Physiology
سال: 2013
ISSN: 1664-042X
DOI: 10.3389/conf.fphys.2013.25.00103