查询词典 sparse

The problems of redundant dictionary construction in overcomplete sparse representation are studied. A method of multiscale Ridgelet dictionary construction is proposed.

2对超完备图像稀疏表示中冗余字典的构造问题进行研究，提出了冗余多尺度脊波字典的构造方法。

Image sparse representation via combined transforms means that an image is sparsely represented by overcomplete dictionary combined by several transforms.

组合变换图像稀疏表示通过几种变换的级联来构造超完备字典，实现图像的稀疏表示。

The spare decomposition method of overcomplete image sparse representation is studied. And a multi-atom matching pursuit method based on incoherent decomposition of redundant dictionary is proposed.

1对超完备图像稀疏分解算法进行了研究，提出了一种基于冗余字典非相干分解的多原子匹配追踪图像稀疏分解算法。

The preconditioned conjugated gradient method is a very efficient iterative method for solving large sparse linear equations.

预处理共轭梯度法是求解大型稀疏线性方程组的极为有效的迭代法。

Results It showed that the prolabium of complete BCL had no muscle, there were only weblike collagen fibers of bundles of them, capillaries, fats and fats and fiber－blasts. There were muscle fibers in prolabium and bridges of incomplete BCL,but ultra structure variations were found. The prolabium of complete BCL operated on with straight line suture method had muscle fibers proliferated from the lateral lips, but the fibers were sparse and also had ultra structure variations.

结果 发现完全性双侧唇裂的前唇部无肌纤维，双侧不完全性唇裂的前唇及桥部有少量肌纤维，但其超微结构有变异；用直线缝合法修复的完全性双侧唇裂的前唇部，有从侧唇增生的肌纤维，但稀少，超微结构亦有变异。

Culm sheaths without spots, thickly pruinose and with sparse, brown setae, margins distally pink, ligules ca.

竿箨没有斑点，厚厚具粉霜和有稀少，棕色刚毛，粉红色的上部边缘，叶舌约5毫米；叶鞘的叶耳截形到有拱顶，1-2.5毫米 7 P。

Resultantly, the album has a very laid-back and natural feel with appropriately sparse instrumentation.

结果整张专辑鲜有乐器伴奏，完全是以一种慵懒，自然的方式呈现。

These abnormal changes mainly occurred at two stages:(1) at meiotic prophase, almost half of Peiai 64S microsporocytes exhibited aberration, with sparse free ribosomes, underdeveloped mitochondria and many swollen endoplasmic reticula.

这些变化主要发生在两个阶段：（1）减数分裂前期，约半数的小孢子母细胞的胞质出现异常，游离核糖体稀少，并具有不发育线粒体和大量泡状内质网。

Based on the property of Ridgelet sparse representation to line singularities, a blind digital image watermarking algorithm is proposed.

利用脊波变换对直线状奇异特征的稀疏表示特性，提出了一种盲数字图像水印算法。

Based on the operation rules of generalized multiplication and generalized addition,the improved Gaussian elimination algorithm is applied in power system topology analysis,meanwhile the sparse technique and sectionalization technique are introduce to raise efficiency of topology analysis.

根据广义乘法和广义加法的运算规则，将改进的高斯消元算法应用于电力系统拓扑结构分析中，并引入稀疏、分块处理等技术提高了上述拓扑分析的效率。

Don not attempt to do something which you can not to do.

不要企图做那些办不到的事情。

The expression of CTGF and TNF-αweredetected by immunochemistry and the number of Clara Cells was calculated.

光镜下观察肺组织的病理变化，采用免疫组化染色观察肺组织中结缔组织生长因子和肿瘤坏死因子-α的表达和Clara细胞的数量。