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To overcome the degraded images taken in hazy weather, an adaptive restoration method based on improved contrast enhanced restoration was proposed. Firstly, by quadtree subdivision searching method, the sky area of multi-channel polarization image are extracted automatically, and the atmospheric light and degree of polarization are calculated; Second, scene depth information of image are calculated...
Just noticeable difference (JND) model can reflect the least perceptible distortion from images, including 2D images and stereoscopic images. As we know, for the perception of human visual system (HVS), stereoscopic images have quite different characteristics from 2D images, since stereoscopic images contain not only planar information, but also depth information. This paper proposes a joint JND (JJND)...
We present a link capacity estimation model and a hybrid routing scheme for wireless mesh networks which aims at improving throughput. The multi-source interference between links and frame capture behaviors of nodes are analyzed. Our model provides estimated values which can indicate the relative quality of wireless links. And we present a routing metric which combines multiple factors based on the...
Multiview video coding (MVC) improves the coding efficiency by motion estimation (ME) and disparity estimation (DE). ME and DE at encoder side involve in heavy computation, which needs to be further reduced for practical applications. This paper presents fast disparity estimation by utilizing depth information to reduce DE's computational complexity. First, the coordinate offset of the encoding block...
Correspondence Function (CF) is a recently introduced concept for rejecting outliers in image point matching. The fundamental idea of CF is that, for given two images I' and I' of a scene, the relationships between the corresponding points can be described by a pair of functions f:I->;I' and f':I'->;I. And the outliers can be detected by checking whether they are consistent with the Correspondence...
In this paper, we propose a new approach to find a large number of reliable point features between high distorted stereo fisheye images, which is very valuable in many applications, such as image-based metrology, geometry estimation and 3D reconstruction. In first step the affine invariant regions are matched by classical approaches then distinctive points within the region can be matched based on...
Compared with conventional perspective camera, data noise for omnidirectional camera is more serious due to its non-linear projection. For linear estimation of motion parameters with noise corrupted data, it is necessary to establish sufficient number of correspondences and use a appropriate robust technique. In this paper, our interests concentrate on two parts. First, we propose a new method to...
Recently, multiview video coding has attracted great attention from industries and research institutes. However, the heavy computational complexity limits its practical applications. In this paper, a fast disparity and motion estimation for multiview video coding is presented, based on the correlations between the neighboring cameras and between the motion and the disparity. In the proposed approach,...
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