Highlight and Re ection-Independent Multiresolution Textures from Image Sequences

نویسندگان

  • Eyal Ofek
  • Erez Shilat
  • Ari Rappoport
  • Michael Werman
چکیده

Rendering is one of the most important tasks in computer graphics and animation. It is widely recognized that texture maps are essential for adding to the visual content of the rendered image. Extraction of textures from a single photograph poses severe diiculties and is sometimes impossible, while artiicial texture synthesis does not address the full range of desired textures. In this paper we present a method for computing high quality, multiresolution textures from an image sequence. The method has the following features: (1) it can be used with images in which the textures are present in diierent resolutions and diierent perspective distortions; (2) it can extract textures from objects with any known 3-D geometric structure; speciically, we are not restricted to planar textures; (3) removal of directional illumination artifacts such as highlights and reeections; (4) eecient storage of the resulting texture in a multiresolution data structure; and (5) no restrictions are imposed on the computed texture, which can be a constant color texture or a richly colored one. We present an especially attractive application of our technique, in which an existing real object participates in an animation sequence and is endowed with synthetic behaviour.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Region Completion in a Texture using Multiresolution Transforms

Abstract Natural images, textures and photographs are likely to be impaired by stains.  As a result a substantial portion of the image remains blurred. However, a method called region completion is adopted to fill in the tainted part by using the information from the portion left unblemished by stains. A novel method to perform this operation is proposed in this paper. The three significant sta...

متن کامل

Multiresolution Textures from Image Sequences

endering is one of the most important tasks in computer graphics and animation , and texture maps add essential visual content to the rendered image. Unfortunately, extracting textures from a single photograph poses severe difficulties and is sometimes impossible, while artificial texture synthesis does not address the full range of desired textures. We present a method for computing high-quali...

متن کامل

3-D Model-Based Motion Compensation from Multiview Facial Image Sequences using a Specular Light Re ection Model

A method for estimating the position, shape and 3-D motion of the human head from a multiview image sequence is presented. Threedimensional motion is estimated by using an approach which also takes into consideration the photometric e ects of motion, assuming a specular illumination re ection model. Gauss-Newton optimization is used to estimate the illumination and 3-D motion parameters. An ell...

متن کامل

Highlight and Shading Invariant Color Image Segmentation Using Simulated Annealing

Color constancy in color image segmentation is an important research issue. In this paper we develop a framework, based on the Dichromatic Re ection Model for asserting the color highlight and shading invariance, and based on a Markov Random Field approach for segmentation. A given RGB image is transformed into a R'G'B' space to remove any highlight components, and only the vector-angle compone...

متن کامل

Contourlet-Based Edge Extraction for Image Registration

Image registration is a crucial step in most image processing tasks for which the final result is achieved from a combination of various resources. In general, the majority of registration methods consist of the following four steps: feature extraction, feature matching, transform modeling, and finally image resampling. As the accuracy of a registration process is highly dependent to the fe...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 1997