Complex wavelet-based image mosaics using edge-preserving visual perception modeling

Bao, Paul; Xu, Dan

doi:10.1016/s0097-8493(99)00040-0

Cited by 17 publications

(6 citation statements)

References 19 publications

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“…The wavelet transform possesses a nice feature in localizing image information in both the spatial and frequency domains. In addition, the wavelet transform provides a multiresolution hierarchical structure to image representation: it decomposes a function into a smooth approximation of the original function and a set of detailed information at different resolutions [5,9,10]. This leads to the progressiveness of the wavelet-based image processing techniques.…”

Section: Wavelet Transformmentioning

confidence: 99%

“…Corresponding coefficients between two decomposed images are linearly interpolated to form the multiresolution representation of an intermediate view. Quantization techniques [10,11] can be embedded here to compress the coefficients for the purpose of reducing the morphing complexity. Finally, during the display, compressed images are decoded and an inverse wavelet transform is applied.…”

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confidence: 99%

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Multiresolution View Morphing in the Wavelet Domain

Bao¹,

Xu²

2000

IJVR

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This paper presents a new view-synthesis technique using the 2D discrete wavelet-based view morphing. The view morphing is completely based on pairwise images without the camera calibration and depth information of images. First a Fundamental Matrix related to any pair of images is estimated. Then using the fundamental matrix, the pair of image planes is rectified to be parallel with their corresponding points lying on the same scanline, giving an opportunity to generate new views with linear interpolation techniques. The pre-warped images are then decomposed into a hierarchical structure with the wavelet transform. Corresponding coefficients between two decomposed images are linearly interpolated to form the multiresolution representation of an intermediate view. Quantization techniques [10,11] can be embedded here to compress the coefficients for the purpose of reducing the morphing complexity. Finally, during the display, compressed images are decoded and an inverse wavelet transform is applied. A postwarping procedure is employed to transform the interpolated views to its desired position.

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Section: Wavelet Transformmentioning

confidence: 99%

mentioning

confidence: 99%

Multiresolution View Morphing in the Wavelet Domain

Bao¹,

Xu²

2000

IJVR

Self Cite

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“…At the VR lab in the Department of Computing, researchers developed a progressive view morphing method [35] and wavelet-based image mosaics using edge-preserving visual perception modeling [36]. They have also applied multiresolution modeling to virtual design and prototyping [37].…”

Section: Vr Lab Of the Hong Kong Polytechnic Universitymentioning

confidence: 99%

Virtual Reality and its Applications in China: An Overview

Pan¹,

Shi²,

Lü³

2000

IJVR

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Nowadays Virtual Reality (VR) has become a hot research topic. In China researchers have obtained a lot of achievements in various VR fields. VR is no longer limited to academic research as it used to be, it has sprung up to a new industry. This paper gives an overview of the research and development on VR in China, including the mainland of China, Hong Kong and Macao. It also gives a summary of the 11 selected papers in the printed edition of this and the next special issues.

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“…There are three main ways to use the variation information, discontinuities, local extrema and the 2D features formed where at least two edges meet. Bao and Xu [30] use edge-preserving visual perception modelling to build mosaics. Kim et al [31] use edges in their graph matching algorithm and use camera focal length to improve stitching reliability, which finds corresponding edges for the matching.…”

Section: Point In 3d Baselinementioning

confidence: 99%

3D reconstruction of a region of interest using structured light and stereo panoramic images

Gledhill

Tian

Taylor

et al.

Proceedings. Eighth International Conference on Information Visualisation, 2004. IV 2004.

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Construction of 3D environments from photorealistic images is important for many industries, including virtual reality, games and tourism among others. Extensive work has been undertaken using multiple stereo vision systems and fusion processing to create full 3D virtual environments. To improve the efficiency and accuracy, a stereo panoramic imaging system is used. A 3D environment can be created by using two panoramic images from a one-shot camera system. However a whole 3D scene is not always required, so a system which reconstructs 3D data only in a region of interest has been developed. A new structured light projection system for region of interest reconstruction is presented and tested. Based on the experimental tests, conclusions have been derived for highlighting the advantages of the approach.

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Complex wavelet-based image mosaics using edge-preserving visual perception modeling

Cited by 17 publications

References 19 publications

Multiresolution View Morphing in the Wavelet Domain

Multiresolution View Morphing in the Wavelet Domain

Virtual Reality and its Applications in China: An Overview

3D reconstruction of a region of interest using structured light and stereo panoramic images

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