Let I, J be ideals of a commutative Noetherian local ring (R, m) and let M be a finite R-module. The f-depth of M with respect to I is the least integer r such that H_I(M) is not Artinian. In this paper we show th...Let I, J be ideals of a commutative Noetherian local ring (R, m) and let M be a finite R-module. The f-depth of M with respect to I is the least integer r such that H_I(M) is not Artinian. In this paper we show that inf{f-depth(a, M) 丨a ∈ W(I, J)} is the least integer such that the local cohomology module with respect to a pair of ideals I, J is not Artinian. As a consequence, it follows that H_I,J(M) is (I, J)-cofinite for all i 〈 inf{f-depth(a, M) 丨a ∈ W(I, J)}. In addition, we show that for a Serre subcategory S, if H_I,J(M) belongs to S for all i 〉 n and if b is an ideal of R such that H^n_I,J(M/bM) belongs to S, then the module H^n_I,J(M)/bH^n_I,J(M) belongs to S.展开更多
图像深度信息获取是机器视觉领域的活跃研究课题之一。将图像深度估计问题归结为模式识别问题,以单目图像深度为模式类,在多尺度下从图像块中提取绝对和相对深度特征,并选择表征上下文关系的DRF(Discriminative Random Field)方法来表...图像深度信息获取是机器视觉领域的活跃研究课题之一。将图像深度估计问题归结为模式识别问题,以单目图像深度为模式类,在多尺度下从图像块中提取绝对和相对深度特征,并选择表征上下文关系的DRF(Discriminative Random Field)方法来表述某图像块的深度和其邻域深度之间的关系,从而构建起基于DRF-MAP(Maximum a posteriori)的单目图像深度估计模型。通过实验,得到了一类单目图像对应的深度图像,从而证明了单目图像深度估计模型对应的改进算法的有效性。展开更多
文摘Let I, J be ideals of a commutative Noetherian local ring (R, m) and let M be a finite R-module. The f-depth of M with respect to I is the least integer r such that H_I(M) is not Artinian. In this paper we show that inf{f-depth(a, M) 丨a ∈ W(I, J)} is the least integer such that the local cohomology module with respect to a pair of ideals I, J is not Artinian. As a consequence, it follows that H_I,J(M) is (I, J)-cofinite for all i 〈 inf{f-depth(a, M) 丨a ∈ W(I, J)}. In addition, we show that for a Serre subcategory S, if H_I,J(M) belongs to S for all i 〉 n and if b is an ideal of R such that H^n_I,J(M/bM) belongs to S, then the module H^n_I,J(M)/bH^n_I,J(M) belongs to S.
文摘图像深度信息获取是机器视觉领域的活跃研究课题之一。将图像深度估计问题归结为模式识别问题,以单目图像深度为模式类,在多尺度下从图像块中提取绝对和相对深度特征,并选择表征上下文关系的DRF(Discriminative Random Field)方法来表述某图像块的深度和其邻域深度之间的关系,从而构建起基于DRF-MAP(Maximum a posteriori)的单目图像深度估计模型。通过实验,得到了一类单目图像对应的深度图像,从而证明了单目图像深度估计模型对应的改进算法的有效性。