Results 251 to 260 of about 1,357,544 (282)

Phase Matching Guided Filtering

2018 IEEE 7th Global Conference on Consumer Electronics (GCCE), 2018
Guided filtering (GF) is widely employed to generate a de-noised image from a flash image and a no-flash image. To generate a de-noised image with the GF, a flash image and a no-flash image are utilized as an input image and a guidance image of the GF, respectively.
Dong-Pan Lim, Seo-Won Ji, Yoon-Jae Yeo, Sung-Jea Ko   +3 more
openaire   +1 more source

Matched Representations and Filters for Guided Waves

IEEE Transactions on Signal Processing, 2009
We propose time-frequency methods to filter dispersive guided wave signals. Guided waves occur in acoustical propagation (oceanic waveguides), geophysics (layered medium), or optics (dielectric optical waveguides). In waveguides, signals can be decomposed into normal modes which contain information on environmental parameters and source localization ...
Le Touzé, Grégoire, Nicolas, Barbara, Mars, Jerome, I., Lacoume, Jean-Louis   +3 more
openaire   +2 more sources

Gradient Domain Guided Image Filtering

IEEE Transactions on Image Processing, 2015
Guided image filter (GIF) is a well-known local filter for its edge-preserving property and low computational complexity. Unfortunately, the GIF may suffer from halo artifacts, because the local linear model used in the GIF cannot represent the image well near some edges.
Fei Kou, Weihai Chen, Changyun Wen, Zhengguo Li   +3 more
openaire   +2 more sources

LBP-Guided Depth Image Filter

2013 Data Compression Conference, 2013
The multi-view video plus depth (MVD) format has been put forward for the call for proposals in free view video (FVV) and 3DTV. Since representing the 3D scene geometry, depth maps are used for synthesizing virtual views. However, compression artifacts of the depth images always lead to geometry distortions in synthesized views.
Rui Zhong, Ruimin Hu, Zhongyuan Wang 0001, Lu Liu, Zhen Han 0002   +4 more
openaire   +1 more source

Bloom Filter Guided Transaction Scheduling

2011 IEEE 17th International Symposium on High Performance Computer Architecture, 2011
Contention management is an important design component to a transactional memory system. Without effective contention management to ensure forward progress, a transactional memory system can experience live-lock, which is difficult to debug in parallel programs. Early work in contention management focused on heuristic managers that reacted to conflicts
Geoffrey Blake, Ronald G. Dreslinski, Trevor N. Mudge   +2 more
openaire   +2 more sources

Guided-mode resonance Brewster filter

Optics Letters, 1998
A new type of optical filter is predicted theoretically and verified experimentally. The filter operates under guided-mode resonance conditions in a thin-film waveguide grating. A high-efficiency reflection filter response is produced at the Brewster angle at which TM reflection is classically prohibited. Low-reflectance sidebands are obtained that are
R, Magnusson, D, Shin, Z S, Liu
openaire   +2 more sources

Content adaptive guided image filtering

2014 IEEE International Conference on Multimedia and Expo (ICME), 2014
Local filtering based edge-preserving smoothing technique could suffer from halo artifacts when it is applied for image enhancement. In this paper, an adaptive guided image filter is proposed by incorporating edge aware weighting which is derived from normalized local variance of a guidance image into an existing guided filter.
Zhengguo Li, Jinghong Zheng 0001, Zijian Zhu   +2 more
openaire   +1 more source

Guided waves filtering with warped curvelets

SPIE Proceedings, 2011
Lamb wave testing for SHM is complicated by multimodal propagation and by reflections. In this paper, the effectiveness of the decomposition inWarped Curvelet Frames for the analysis of guided ultrasonic waves is studied. The transformation acts by expanding the analyzed signal into a tight frame of basis functions named Curvelets.
DE MARCHI, LUCA, BARAVELLI, EMANUELE, M. Ruzzene, SPECIALE, NICOLO'ATTILIO   +3 more
openaire   +2 more sources

Nonpolarizing guided-mode resonance filter

Optics Letters, 2009
A normal-incidence nonpolarizing guided-mode resonance filter is designed. There are two waveguide layers and one grating layer in the filter. By adjusting the distance between the two waveguide layers, the same resonance wavelength for both TE and TM polarization can be achieved.
Xiaoyong, Fu, Kui, Yi, Jianda, Shao, Zhengxiu, Fan   +3 more
openaire   +2 more sources

Image Registration Guided by Particle Filter

2009
Image Registration is a central task to different applications, such as medical image analysis, stereo computer vision, and optical flow estimation. One way to solve this problem consists in using Bayesian Estimation theory. Under this approach, this work introduces a new alternative, based on Particle Filters, which have been previously used to ...
Edgar Arce Santana, Daniel U. Campos-Delgado, Alfonso Alba   +2 more
openaire   +2 more sources