In this paper, we present a new analysis by synthesis computational framework for stereo vision. It is designed to achieve the following goals: (1) enforcing global visibility constraints, (2) obtaining reliable depth for depth boundaries and thin structures, (3) obtaining correct depth for textureless regions, and (4) hypothesizing correct depth for unmatched regions. The framework employs dep...

In this paper, we exploit robust depth information with simple color-shape appearance model on single object tracking in crowd dynamic scenes. Since binocular video streams are captured from a moving camera rig, background subtraction cannot provide a reliable enhancement of region of interest. Our main contribution is a novel tracking strategy to employ explicit stereo depth to track and segme...

An efficient technique for summarization of stereoscopic video sequences is presented in this paper, which extracts a small but meaningful set of video frames using a content-based sampling algorithm. The proposed video-content representation provides the capability of browsing digital stereoscopic video sequences and performing more efficient content-based queries and indexing. Each stereoscop...

A novel scheme for depth extraction is achieved using a multiple view ring camera system. The ring camera method captures a series of images of scene from a set of camera locations arranged in a circular ring. Tracking of scene features through this sequence realizes circular feature trajectories. The recovery of depth can be obtained with this method by determining the diameter of the circular...

Reliable seismic depth migrations require an accurate input velocity model. Inaccurate velocity estimates will distort point diffractors into smiles or frowns on a depth section. For both poststack and prestack migrated sections, high velocities cause deep smiles while low velocities cause shallow frowns on migrated gathers. However, for prestack images in the offset domain, high velocities cau...

Multi-view Video plus Depth (MVD) data offer a reliable representation of three dimensional (3D) scenes for 3D Video applications. This is a huge amount of data whose compression is an important challenge for researchers at the current time. Consisting of texture and depth video sequences, the question of the relationship between these two types of data regarding bitrate allocation often raises...

Depth maps taken by the low cost Kinect sensor are often noisy and incomplete. Thus, post-processing for obtaining reliable depth maps is necessary for advanced image and video applications such as object recognition and multi-view rendering. In this paper, we propose adaptive directional filters that fill the holes and suppress the noise in depth maps. Specifically, novel filters whose window ...

Since depth-image-based rendering (DIBR) is one of the rendering processes to generate virtual views from the texture image and the depth map, we investigate DIBR as a core technique for threedimensional television. In this paper, we propose a new scheme to generate multi-view images using DIBR. In order to improve visual quality of multiview images at newly exposed areas, we preprocess the dep...

An L-vertex, the point at which two contours coterminate, provides highly reliable evidence that a surface terminates at that vertex, thus providing the strongest constraint on the extraction of shape from images (Guzman, 1968). Such vertices are pervasive in our visual world but the importance of a statistical regularity about them has been underappreciated: The contours defining the vertex ar...

abstract information on spatial and temporal variations of soil hydraulic conductivity (k) is essential to improve soil and water management. however several techniques have been proposed for measuring of soil hydraulic conductivity above water surface table, but reliability and easy use of these methods in various conditions were always concern for engineers. the purposes of this study are mea...