This increased roughness in the enhanced image data serves to increase confidence of the classification analysis for detecting low-frequency halftone screens, so that such low-frequency halftone areas are not misclassified as contone or high-frequency halftone areas....
Full size image Optimal conditions of ELF-WMF for the reduction of the mitochondrial mass in cultured cells Next, we analyzed the optimal conditions of ELF-WMF by measuring the mitochondrial mass at 3 h by changing the intensity, pulse width, and frequency of ELF-WMF. ELF-WMF, less than...
In the current study, we aimed to investigate how decision-making processes are influenced by low-level image properties, diagnostic of scene complexity. While multiple studies have shown that specific image properties (such as spatial frequency, or stimulus strength) interact with decision-making, th...
1.1.1Ultra-low frequency definition The range of the so-calledlow frequency vibrationhas been loosely defined in the literature depending on applications. For example, Chen and Liu[8]set the range of 20–200 Hz as the low frequency ranges when investigatingfriction dynamicsof vehicle brake systems...
The difference in scattering between elliptic- and circular-shaped leaves is demonstrated. In the low-frequency limit, the major factors on backscattering from vegetation are found to be the depth of the vegetation layer and the orientation distribution of the leaves. The shape of the leaf is of...
Bistability and low-frequency fluctuations in semiconductor lasers with optical feedback: a theoretical analysis Near-threshold operation of a semiconductor laser exposed to moderate optical feedback may lead to low-frequency fluctuations. In the same region, a kink i... J Mork,B Tromborg - 《...
We first apply a pyramid decomposition network for the Retinex decomposition in low-light image enhancement. Due to pyramid network, we extract multi-scale and multi-frequency feature maps, which significantly promote the decomposition and enhancement performance. We propose a restoration network to refi...
A millimeter wave imaging system that includes at least one millimeter wave frequency scanning antenna for collecting frequency dependent beams of millimeter wave radiation from a narrow one-dimensional field of view. The collected radia... Lovberg, John A,Kolinko, Veadimir 被引量: 64发表: 2004年...
observation images. Our key insight is that the better the geometry, the lower-frequency the computed color field. From this insight, given a reconstructed density field and observation images, we design a closed-form method to approximate the color field with low-frequency spherical harmonics, ...
The low frequency sub-band image extracted from the pre-processed SAR image is filtered by Gabor filter. 该方法首先提取预处理后SAR目标图像的低频子带图像,用Gabor滤波器对该子带图像进行滤波,对滤波后各子带图像进行分块,提取所有分块的统计特征作为目标识别特征,最后用支持向量机对该特征进行分类完成目标...