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A wireless tracking and controlling the mobile robot using video capturing feature (VCF) for unmanned applications is presented. It is a wheel-based and Radio frequency (RF wireless communicated) is used for communication between controller and the robot. The available motions of the robot are forward, backward, right, left and the combination of these movements. Besides, a camera is built in the...
This paper presents a method of generating new view point movie for the baseball game. One of the most interesting view point on the baseball game is looking from behind the catcher. If only one camera is placed behind the catcher, however, the view is occluded by the umpire and catcher. In this paper, we propose a method for generating a see-through movie which is captured from behind the catcher...
Augmented reality aims to insert virtual objects in real scenes. In order to obtain a coherent and realistic integration, these objects have to be relighted according to their positions and real light conditions. They also have to deal with occlusion by nearest parts of the real scene. To achieve this, we have to extract photometry and geometry from the real scene. In this paper, we adapt high dynamic...
We propose a robust background subtraction method for multi-view images, which is essential for realizing free viewpoint video where an accurate 3D model is required. Most of the conventional methods determine background using only visual information from a single camera image, and the precise silhouette cannot be obtained. Our method employs an approach of integrating multi-view images taken by multiple...
A signature verification system based on video is proposed in this paper.The signature information is obtained from video of camera which is different from traditional online or offline method.First,we set the camera in upper front of the white written paper,so that we can get the signatures have the most identifiability for human recognition. We locate the pen tip position using a contour-based method...
Scene change detection is an essential step for archived films restoration. But the image quality of archived films often degrades gradually which makes false detection during shot segmentation. This paper focuses on some problems about the scene change detection in archived films. For abrupt change shot detection, the difference between histograms of block-bases adjacent frames and across frames...
Most of the TV manufacturers have released 3DTVs in the summer of 2010 using shutter-glasses technology. 3D video applications are becoming popular in our daily life, especially at home entertainment. Although more and more 3D movies are being made, 3D video contents are still not rich enough to satisfy the future 3D video market. There is a rising demand on new techniques for automatically converting...
A digital video is composed of a series of frame images. The continuous rotation angles are computed using the frame images grabbed from the rotation angle measurement video. An angle is calculated with the cosine theorem through the center point, start point and object point in a frame image and is compensated to a rotation angle. The positions of the object point in frame images are different during...
In this paper, we propose a novel approach for synchronizing multiple videos captured from common laparoscopic operations in simulation-based surgical training. The disparate video sources include two hand-view sequences and one tool-view sequence that does not contain any visual overlap with the hand views. The synchronization of the video is essential for further visual analysis tasks. To the best...
Metadata is considered vital in making sense of ISR sensor data because it provides the context needed to interpret motion imagery. For example, metadata provides the fundamental information needed to associate the imagery with location and time. But, more than that, metadata provides information that can assist in automated video analysis. This paper describes some of the ways that metadata can be...
In this paper, we proposed a novel video enhancement for moving-objects in the dusk environment based on mixed-mode processing which involves de-noising, moving object detection, and image enhancement. The basic strategy is to first calculate each pixel's motion vector and then check the magnitude of this motion vector to determine that the pixel belongs to foreground (i.e., moving object) or background...
Panoramic-image-based approach for representing environmental data has become a common method used by various virtual reality applications. It has many advantages over the traditional 3D modeling approaches, such as shorter generation times, faster rendering speeds, higher photorealism, and less storage needed. The drawback is however that it stores only static information of the scene. Panoramic...
In order to reduce accident at traffic intersections during day and night, the algorithm of traffic lights detection which is applied in a vehicle driver assistance system is designed by using the image processing technology. The system of traffic light detection includes three parts: a CCD camera, an image acquisition card, and a PC. Based on RGB color space, the algorithm extracts red, green, and...
Free viewpoint video enables the visualisation of a scene from arbitrary viewpoints and directions. However, this flexibility in video rendering provides a challenge in 3D media for achieving spatial synchronicity between the audio and video objects. When the viewpoint is changed, its effect on the perceived audio scene should be considered to avoid mismatches in the perceived positions of audiovisual...
A new approach to video stabilization is proposed in this paper. Firstly, SURF (Speeded-Up Robust Features) is employed to extract feature points from input frames. Then, the local feature matching strategy is presented to speed up the global motion estimation procedure. Secondly, a weak Gaussian smoother is constructed to smooth the camera motion iteratively. In order to make the weak smoother adapt...
In this paper we present a novel system for real-time, six degree of freedom visual simultaneous localization and mapping using a stereo camera as the only sensor. The system makes extensive use of parallelism both on the graphics processor and through multiple CPU threads. Working together these threads achieve real-time feature tracking, visual odometry, loop detection and global map correction...
This paper describes the validation process of a simulation model that have been used to explore the new possibilities of interaction when humans are guided by teams of robots that work cooperatively in urban areas. The set of experiments, which have been recorded as video sequences, show a group of people being guided by a team of three people (who play the role of the guide robots). The model used...
Camera motion classification is an important research topic in video content analysis and retrieval. In this paper, we propose a nonparametric classification method of camera motion, which employs support vector machine to learn motion vector file and then train classifiers to categorize camera motion. Libsvm is used as support vector machine tool to validate the method and experiments demonstrate...
Two channels video signal of the same scenery can be obtained by two CCD synchronous video cameras whose integration times are different: one is longer than another. The CCD video camera with short integration time is used for obtaining bright image information while the one with long integration time is used for obtaining gray image information. The image processing method is to adopt DSP combining...
This paper proposed a novel image stitching algorithm based on fast moving object detection and motion prediction compensation, which can avoid ghosting caused by the moving target. We estimates the global motion vector through extracting and matching SIFT features. Based on the global motion estimation, calculate the relative difference image of the overlapping region in the pair of registered images...
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