Proceedings ArticleDOI
Image Resolution Conversion Based on an Edge-Adaptive Interpolation Kernel
T. Mori,Keisuke Kameyama,Yasuhiro Ohmiya,Jia Lee,Kazuo Toraichi +4 more
- pp 497-500
TLDR
In this article, a novel edge-adaptive image interpolation method was proposed, which is easy to implement and computationally efficient, but none of them are comparable to classical interpolation methods such as Bi-linear interpolation or Bi-cubic interpolation concerning computational cost.Abstract:
In this paper we propose a novel edge-adaptive interpolation method which is easy to implement and computationally efficient. Although various edge-adaptive image interpolation methods have been proposed in the past, none of them are comparable to classical interpolation methods such as Bi-linear interpolation or Bi-cubic interpolation concerning computational cost. Here we propose a novel interpolation method modifying the classical interpolation methods adaptive to improve the quality around the edges. The proposed method's flow is the following: 1) For all pixels, determine the local gradient defined by plane approximation of four neighbouring pixels. 2) Derive the edge-adaptive interpolation kernel by edge-directed interpolation axes. 3) Interpolate. From the results of experiments, the effectiveness of the proposed method concerning the computational cost and subjective image quality have been verified.read more
Citations
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Proceedings ArticleDOI
Fast directional image interpolation with difference projection
TL;DR: Experimental results show that the proposed directional image interpolator outperforms conventional bicubic and some existing adaptive interpolators, in terms of both the perceptual and quantitative quality.
Journal ArticleDOI
Quality Improvement Scheme of Interpolated Image using the Characteristics of the Adjacent Pixels
TL;DR: In this article, an efficient interpolation scheme was proposed to provide locality for the interpolated pixels by using the characteristics of adjacent pixels in input image, and the quality of magnified image using the proposed scheme was improved.
Journal ArticleDOI
Quality improvement scheme of magnified image by using gradient information between adjacent pixel values
TL;DR: In this paper, an efficient interpolation scheme using gradient information between adjacent pixel values was proposed to estimate the value of interpolated pixel to have the locality which exists in real image and the characteristic of simple convex surface and simple concave surface which exist partially in the real image.
Journal ArticleDOI
An efficient quality improvement scheme for magnified image by using simple convex surface and simple concave surface characteristics in image
TL;DR: In this paper, an effective scheme was proposed to estimate simple convex surface and simple concave surface which exist in image, and the PSNR values of the magnified images using the proposed schemes are greater than those of the magnification images using previous interpolation schemes.
Journal ArticleDOI
An efficient quality improvement scheme of magnified image by using the information of adjacent pixel values
Soo-Mok Jung,Byung-Won On +1 more
TL;DR: To improve the quality of magnified image, two schemes were pro posed. as mentioned in this paper estimate simple convex surface and simple concave surface using the information of adjacent pixel values, and the other scheme is used to produce magnified images using the characteristics of simple conveX surface and concave surfaces.
References
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Journal ArticleDOI
New edge-directed interpolation
Xin Li,Michael T. Orchard +1 more
TL;DR: Simulation results demonstrate that the new interpolation algorithm substantially improves the subjective quality of the interpolated images over conventional linear interpolation.
Journal ArticleDOI
On the comparison of interpolation methods
TL;DR: A study of different cubic interpolation kernels in the frequency domain is presented that reveals novel aspects of both cubic spline and cubic convolution interpolation.
Journal ArticleDOI
Adaptively quadratic (AQua) image interpolation
D.D. Muresan,T.W. Parks +1 more
TL;DR: Through comparisons with other algorithms it is shown that the new interpolation is not only mathematically optimal with respect to the underlying image model, but visually it is very efficient at reducing jagged edges, a place where most other interpolation algorithms fail.
Proceedings ArticleDOI
Adaptive Image Interpolation Using Weight CVQ
Byung-Ho Cha,Rae-Hong Park +1 more
TL;DR: Simulation results with exemplary test images demonstrate that the proposed adaptive image interpolation method is superior to a bilinear and a bicubic interpolation, and its visual quality is comparable to that of the edge-directed and the optimal recovery interpolation with the much less computational load.