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    • 14. 发明授权
    • Kernel regression for image processing and reconstruction
    • 图像处理和重构的内核回归
    • US07889950B2
    • 2011-02-15
    • US11513833
    • 2006-08-30
    • Peyman MilanfarHiroyuki TakedaSina Farslu
    • Peyman MilanfarHiroyuki TakedaSina Farslu
    • G06K9/32H04N7/01H04N5/00
    • G06T3/4084G06K9/40G06K9/44G06T5/002G06T5/003G06T5/20G06T2207/20012G06T2207/20028G06T2207/20192G06T2207/20204
    • A method of image processing using kernel regression is provided. An image gradient is estimated from original data that is analyzed for local structures by computing a scaling parameter, a rotation parameter and an elongation parameter using singular value decomposition on local gradients of the estimated gradients locally to provide steering matrices. A steering kernel regression having steering matrices is applied to the original data to provide a reconstructed image and new image gradients. The new gradients are analyzed using singular value decomposition to provide new steering matrices. The steering kernel regression with the new steering matrices is applied to the noisy data to provide a new reconstructed image and further new gradients. The last two steps are repeated up to ten iterations to denoise the original noisy data and improve the local image structure.
    • 提供了使用内核回归的图像处理方法。 通过对本地结构分析的原始数据估计图像梯度,通过计算缩放参数,旋转参数和伸长参数,使用奇异值分解对局部梯度的局部梯度进行局部设置,以提供导向矩阵。 具有导向矩阵的转向核心回归被应用于原始数据以提供重建的图像和新的图像梯度。 使用奇异值分解来分析新的梯度以提供新的导向矩阵。 使用新的导向矩阵的转向核回归应用于噪声数据,以提供新的重建图像和进一步的新梯度。 最后两个步骤重复十次迭代以去噪原始噪声数据并改善局部图像结构。
    • 18. 发明授权
    • Ultrasonic flaw detector device
    • 超声波探伤仪
    • US4472346A
    • 1984-09-18
    • US287795
    • 1981-07-28
    • Hiroyuki TakedaKazuo YamadaIzumi KobayashiYousuke OjiriShigeru Kajiyama
    • Hiroyuki TakedaKazuo YamadaIzumi KobayashiYousuke OjiriShigeru Kajiyama
    • G21C17/032G21C17/00
    • G21C17/032
    • An ultrasonic flaw detector device including axial and circumferential fixed tracks located in a space defined between a pressure vessel of a nuclear reactor and a heat insulating wall surrounding the vessel and arranged axially and circumferentially respectively of the pressure vessel of the nuclear reactor. A rotary track is located at a junction of the axial fixed track and the circumferential fixed track and moved in rotary movement by a chain and has its angle of rotation restricted by a pair of stoppers. A carrier member supporting an ultrasonic probe is moved on the tracks to effect ultrasonic flaw detection to detect any flow that might be present in the pressure vessel. To transfer the carrier member from the axial fixed track to the circumferential fixed track, the carrier member is first transferred from the axial fixed track to the rotatable track, and after the rotary track is rotated, the carrier member is transferred from the rotatable track to the circumferential fixed track.
    • 一种超声波探伤装置,其包括位于核反应堆的压力容器之间的空间中的轴向和周向的固定轨道,以及围绕容器的绝热壁,并分别轴向和周向地布置在核反应堆的压力容器中。 旋转轨道位于轴向固定轨道和周向固定轨道的接合处,并通过链条旋转运动,并且其旋转角度受到一对挡块的限制。 支撑超声波探头的载体部件在轨道上移动以实现超声波探伤以检测可能存在于压力容器中的任何流动。 为了将载体构件从轴向固定轨道传递到周向固定轨道,承载构件首先从轴向固定轨道传递到可旋转轨道,并且在旋转轨道旋转之后,承载构件从可旋转轨道传递到 圆周固定轨道。