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In order to integrate existing decontamination equipment simulators of different architectures into a collaborative simulation system and improve their scalability and real-time performance, a High Level Architecture (HLA) and Object-oriented Graphics Rendering Engine (OGRE) based simulation training system is established. A data collector and RTI adaptor are introduced to realize communication among...
Losing a packet will cause losing a whole frame in high compression and high payload video communication such as wireless low bit rate video transmission. In this paper, we present a novel technique which can deal with the problem of error concealment for whole frame losses. The proposed technique exploits objects motion information from video by combining gray and color optical flow methods to reconstruct...
Image fusion is one of the important techniques to enhance image information. A novel pixel-level image fusion scheme is presented based on multiscale decomposition. The wavelet transform is used to construct the wavelet coefficients of fused image using multiple operators according to different fusion rules. Comparison of fusion results of visible image and infrared image is given. It shows that...
In order to improve the precision of 3D reconstruction, a new composite coding way based on structure light is proposed. In this paper, color stripe pattern is used as basic coding element and intensity properties are introduced for every color stripes to design coding pattern. This coding pattern can be used to extract stripe peak and edge information on sub-pixel level. In the reconstruction we...
The passive millimeter wave imaging (PMMW) formation has its unique technical advantage which can penetrate the smoke, cloud, drizzle and so on. This paper presents a method of passive millimeter wave imaging using a compressed sensing architecture which can sample the scene signals significantly lower than the Nyquist sampling rate, while the original scene image can be reconstructed with high precision...
With the development of science and technology, digital city attracts more and more attention and the need for 3D models of urban buildings is increasing. Many researchers have proposed different ways for 3d building model reconstruction, among which some are semi-automatic; some are automatic but very complex. This paper presents a novel method for reconstruction of 3D building models from aerial...
Most UNIX-like file systems do not support the undelete operation, so it is a difficult thing to recovery the deletion files in the field of data recovery. By studying on the bitmap and physical structure of UNIX-like file system (take ext3 file system as an example), present an improved method about the UNIX-like file system which does not support the undelete operation. It shows that the method...
Two-step calibration reconstruction algorithm is proposed based on binding basic elements and the calibration objects. This method first according to basic elements of building recovery its 3D coordinates of six (or more) points in a single image, then through the 2D and 3D coordinates of these points obtain camera projective matrix, whole building is reconstructed finally. White-Clothing Pavilion...
Motion estimation is a very important part of video compression. As a result of using precision of motion vector in H.264 encoder, the computational cost increases rapidly, and motion estimation is the most time-consuming stage. In this paper, based on the UMHexagonS algorithm, an optimized algorithm is proposed based on the dynamic search window selection, big hexagon and small hexagon search mode...
The stereoscopic display technology has become a main research issue in recent years because of its unique human-computer interaction. This paper analyzed the principle of stereoscopic display with physiological and psychological factors and then briefly introduced the development of various stereoscopic display technologies, meanwhile especially talked about the principles, applications, advantages...
Although the Total Variation (TV) model has good performance in the image inpainting including both maintaining damaged images' edge and reducing numerical calculation, it should be improved in the inpainting domain with rich texture. In this paper, an image multi-level-inpainting method based on TV model and texture synthesis scheme is proposed. It is the main research topic to improve the visual...
In order to get high resolution, a optical system of golay-3 synthetic aperture telescope has been designed which adopt Fizeau multi-telescope frame. The angular magnification of sub-aperture is -4; the fill factor is 1/3. The configuration of light beam combiner is Cassegrain style added a lens. The total focal length is 6000mm; the field of view is 4'. Analyzed the imaging, the PSF have been improved...
Wyner-Ziv video coding (WZC) exhibits many properties like low-complexity encoding or embedded error resilience. The quality of side information takes an important role in the performance of WZC. In order to improve the performance of WZC, a new side information interpolation algorithm is proposed in this paper. In our approach, adjacent frames are recombined before encoding. At the decoder, side...
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