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Accurate depth map at high resolution is required in many 3D video concepts. Given a low-resolution depth map, this paper studies how to enhance its resolution with a registered high-resolution color image. The idea of the proposed approach is that pixels with similar color values and small distances should have similar depth values, while color discontinuities indicate sharp depth changes at object...
Many scalable video compression techniques utilize a mixed-resolution scheme, which down-samples some frames at the encoder to be reduced-resolution frames while keeping resolutions of other frames unchanged as full resolutions, in order to achieve higher compression gain. Image enlargement technique is required at the decoder to recover the original full-resolution frames for this mixed-resolution...
Asymmetric stereoscopic imaging technique utilizes a pair of lower-resolution and full-resolution images to reduce the data storage requirement of stereoscopic images and videos, while maintaining fairly good quality in 3D perception. This paper proposes a super-resolution approach to reconstruct the original full-resolution image for this asymmetric stereoscopic system setup. The proposed approach...
This paper presents a novel blind super-resolution (SR) algorithm to enhance image resolution without the knowledge of the blurring functions. The primary motivation for developing the blind algorithm is due to the observation that most existing SR methods assume the blurs are known a priori, which may not be true in many real-world applications. In view of this, we formulate the SR problem into a...
Wavelet-based image interpolation typically treats the input image as the low-pass filtered subbands of an unknown wavelet-transformed high-resolution image, and then produces the unknown high-resolution image by estimating the wavelet coefficients of the high-pass filtered subbands. The major challenge is to exploit the inter-scale correlation among the wavelet coefficients. In contrast to that the...
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