Stereo Refinement for Photo Editing

نویسندگان

  • Dongwei Liu
  • Reinhard Klette
چکیده

We present a method for refining depth information generated by a stereo-matching algorithm with the goal to provide depthaware photo-effect applications. Our key idea is to use structural features of the base image to enhance the depth information. Our method pre-processes the original disparity map by revising the sky region and removing incorrect data (on the left-side of the disparity map) caused by occlusion. The base image is mean-shift segmented. A median filter is applied on the disparity map within each segment. Invalid step-edges in the disparity map are removed by a joint bilateral filter. Experiments show that our method can revise holes, inaccurate object edges, speckle noises, and invalid step-edges from the given depth information. Results illustrate the applicability for photo editing.

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

Review on Accurate Multiple View 3D Reconstruction Using Depth Map Merging

This paper presents a quantitative comparison of several multi-view stereo reconstruction algorithms. In this paper, we propose a depth-map merging based hybrid method for large-scale scenes which takes both accuracy and efficiency is used into account. Different from typical multiview stereo methods, our approach is not only imposes the photo consistency constraint, but also associates explici...

متن کامل

Interactive Free-Viewpoint Video

This paper introduces a representation for multiple view video to support high-quality interactive free-viewpoint rendering of moving people. Multiple wide baseline views are integrated into a view-dependent representation based on pair wise refinement of the visual-hull. An exact viewdependent visual-hull (VDVH) algorithm is presented to compute an initial approximation of the scene geometry. ...

متن کامل

Iterative Refinement of Transmission Map for Stereo Image Defogging Using a Dual Camera Sensor

Recently, the stereo imaging-based image enhancement approach has attracted increasing attention in the field of video analysis. This paper presents a dual camera-based stereo image defogging algorithm. Optical flow is first estimated from the stereo foggy image pair, and the initial disparity map is generated from the estimated optical flow. Next, an initial transmission map is generated using...

متن کامل

Adaptive Scale Selection for Hierarchical Stereo

Hierarchical stereo provides an efficient coarse-to-fine mechanism for disparity map estimation. However, common drawbacks of such an approach include the loss of high frequency structures not observable at coarse scale levels, as well as the unrecoverable propagation of erroneous disparity estimates through the scale space. This paper presents an adaptive scale selection mechanism to determine...

متن کامل

Pixelwise View Selection for Unstructured Multi-View Stereo

This work presents a Multi-View Stereo system for robust and efficient dense modeling from unstructured image collections. Our core contributions are the joint estimation of depth and normal information, pixelwise view selection using photometric and geometric priors, and a multi-view geometric consistency term for the simultaneous refinement and image-based depth and normal fusion. Experiments...

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 2014