Download Active Visual Inference of Surface Shape by Roberto Cipolla PDF

By Roberto Cipolla

This monograph is dedicated to the matter of inferring geometric information regarding arbitrarily curved surfaces from visible cues; it is a principal challenge in machine imaginative and prescient with rapid relevance for robotic manipulation and navigation.
The writer develops computational theories and strategies pertaining to visible details coming up from viewer pursuits to the differential geometry of seen surfaces. The theories constructed were carried out and confirmed utilizing a real-time monitoring procedure according to deformable contours. functions of the recommendations to geometric modelling, concern avoidance, navigation, and item manipulation are presented.

Show description

Read Online or Download Active Visual Inference of Surface Shape PDF

Similar 3d graphics books

3-D Computer graphics. Mathematical introduction with OpenGL

This electronic rfile is an editorial from institution technology and arithmetic, released through university technology and arithmetic organization, Inc. on March 1, 2009. The size of the thing is 692 phrases. The web page size proven above relies on a standard 300-word web page. the item is added in HTML layout and is out there instantly after buy.

An Essential Introduction to Maya Character Rigging

Observe the ideas and methods required to rig enticing CG personality versions with Maya during this distinct publication and DVD package deal. the beautiful colour photos express simply what you could in attaining, and the certain step by step tutorials express precisely find out how to in achieving them. each process and tip is subsidized up with functional tutorials, utilizing the types, pupil paintings and instructional resources at the better half DVD to provide a crash path during this very important ability.

Interactive 3D Graphics in Windows®

Interactive 3D snap shots in home windows is a hands-on e-book which makes use of an element software program method of aid visible C++ programmers fast and simply advance windows-integrated, interactive three-D pix purposes. The booklet comprises JOEY, a three-D person interface toolkit which addresses interplay matters no longer handled within the Microsoft consumer Interface sort advisor.

High-Speed 3D Imaging with Digital Fringe Projection Techniques

Electronic fringe projection (DFP) ideas are used for non-contact form dimension of 3D photographs. within the swiftly increasing box of 3D high-speed imaging, the call for for DFP maintains to develop end result of the technology’s speedy velocity, flexibility, most economical, and excessive accuracy. High-Speed 3D Imaging with electronic Fringe Projection recommendations discusses the new release of electronic fringe with electronic video projection units, protecting quite a few center technical elements.

Additional info for Active Visual Inference of Surface Shape

Example text

4 Qualitative shape Further robustness can be obtained by considering the ratio of relative curvatures. More precisely this is the ratio of differences in radii of curvature. Ratios of pairs of parallax based measurements can, in theory, be completely insensitive to viewer motion. n can be shown to be independent of the viewer motion and can be determined from spatio-temporal measurements on the image for a distinct point and apparent contour pair (Appendix C). 34)). This result is important because it demonstrates the possibility of obtaining robust inferences of surface geometry which are independent of any assumption of viewer motion.

2. If n~ is concave the sign of normal curvature changes as we change directions in the tangent plane. The surface is locally hyperbolic and K < O. 3. If n ~ is zero the sign of normal curvature does not change but the normal curvature can become zero. The surface is locally parabolic and K = O. 24), the curvature of the apparent contour indicates the sign of Gaussian curvature. As before when we considered the surface normal, the ability to determine the sign of the Gaussian curvature relies on being able to determine on which side of the apparent contour the surface lies.

For a general motion, however, the epipolar plane structure rotates continuously as the direction of translation, U, changes and the space curve, r(s0, t), generated by the movement of a contact point will be non-planar. 34), the tangents to the t-parameter curves on the spatio-temporal image, q(s0, t), are defined by qt-- (UAq) Aq a A q. 35) Note that qt is equal to the image velocity of a point on the projection of a static space curve at depth )~ [149]. This is not surprising since instantaneously image velocities are dependent only on depth and not surface curvature.

Download PDF sample

Rated 4.56 of 5 – based on 18 votes