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Subpixel rendering

About: Subpixel rendering is a research topic. Over the lifetime, 3885 publications have been published within this topic receiving 82789 citations.


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Patent
09 Sep 2016
TL;DR: In this paper, a display drive method for driving a 3D display device is presented. But the method is limited to two views, and it requires a rectangular sampling region of the subpixel and belongs to each view.
Abstract: The present disclosure provides a display drive method for driving a 3D display device. The method comprises: dividing a first view and a second view to be displayed into a plurality of theoretical pixel units, respectively, and determining a respective gray value corresponding to a color of each type of subpixels in original display information corresponding to each theoretical pixel unit; and for each subpixel of each view, determining brightness of the subpixel based on respective gray values corresponding to the color of the subpixel in the original display information corresponding to respective theoretical pixel units which are covered by a rectangular sampling region of the subpixel and belong to the view. The present disclosure further provides a display drive apparatus and a method and apparatus for generating a sampling region. Embodiments of the present disclosure enable complete sampling for the whole display area as well as absence of overlapped sampling, thereby avoiding distortion of images caused by incomplete sampling or overlapped sampling.

25 citations

Journal ArticleDOI
TL;DR: Zhang et al. as mentioned in this paper proposed an edge-based scale-and affine-invariant algorithm EBSA for remote sensing image registration based on SIFT and ASIFT.
Abstract: For remote sensing image registration, we find that affine transformation is suitable to describe the mapping between images. Based on the scale-invariant feature transform SIFT, affine-SIFT ASIFT is capable of detecting and matching scale-and affine-invariant features. Unlike the blob feature detected in SIFT and ASIFT, a scale-invariant edge-based matching operator is employed in our new method. To find the local features, we first extract edges with a multi-scale edge detector, then the distinctive features we call these ‘feature from edge’ or FFE with computed scale are detected, and finally a new matching scheme is introduced for image registration. The algorithm incorporates principal component analysis PCA to ease the computational burden, and its affine invariance is embedded by discrete sampling as ASIFT. We present our analysis based on multi-sensor, multi-temporal, and different viewpoint images. The operator shows the potential to become a robust alternative for point-feature-based registration of remote-sensing images as subpixel registration consistency is achieved. We also show that using the proposed edge-based scale-and affine-invariant algorithm EBSA results in a significant speedup and fewer false matching pairs compared to the original ASIFT operator.

25 citations

Proceedings ArticleDOI
TL;DR: The proposed algorithm is based on the measurement of centroid on the cross correlation surface by Modified Moment method, which shows that the accuracies of the algorithm are comparable with other subpixel registration techniques and the processing speed is higher.
Abstract: This paper presents a fast algorithm for obtaining high-accuracy subpixel translation of low PSNR images Instead of locating the maximum point on the upsampled images or fitting the peak of correlation surface, the proposed algorithm is based on the measurement of centroid on the cross correlation surface by Modified Moment method Synthetic images, real solar images and standard testing images with white Gaussian noise added were tested, and the results show that the accuracies of our algorithm are comparable with other subpixel registration techniques and the processing speed is higher The drawback is also discussed at the end of this paper

25 citations

Journal ArticleDOI
TL;DR: A robust algorithm is presented for smoothing and achieving subpixel accuracy in the reconstruction of chain coded line drawings and does not need a priori knowledge of curvature statistics.
Abstract: A robust algorithm is presented for smoothing and achieving subpixel accuracy in the reconstruction of chain coded line drawings. The algorithm does not remove sharp corners and does not need a priori knowledge of curvature statistics. A fast on-line implementation can be achieved using a table look-up. A simplified algorithm can be used for reconstructing digitized polygons.

25 citations

Journal ArticleDOI
TL;DR: This proposed method allows one to adjust the design parameters and carry out simulation for the performance of a subpixel-matched auto-stereoscopic LCD more efficiently and easily.
Abstract: Both an analytical formula and an efficient numerical method for simulation of the accumulated intensity profile of light that is refracted through a lenticular lens array placed on top of a liquid-crystal display (LCD) are presented. The influence due to light refracted through adjacent lens is examined in the two-view and four-view systems. Our simulation results are in good agreement with those obtained by a piece of commercial software, ASAP, but our method is much more efficient. This proposed method allows one to adjust the design parameters and carry out simulation for the performance of a subpixel-matched auto-stereoscopic LCD more efficiently and easily.

25 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202387
2022209
2021120
2020179
2019189
2018263