Eastman Kodak Co., Rochester, NY.
IEEE Trans Image Process. 1992;1(1):123-6. doi: 10.1109/83.128039.
Sequential imaging cameras are designed to record objects in motion. When the speed of the objects exceeds the temporal resolution of the shutter, the image is blurred. Because objects in a scene are often moving in different directions at different speeds, the degradation of a recorded image may be characterized by a space-variant point spread function (PSF). The sequential nature of such images can be used to determine the relative motion of various parts of the image. This information can be used to estimate the space-variant PSF. A modification of the Landweber iteration is developed to utilize the space-variant PSF to produce an estimate of the original image.
序列成像相机旨在记录运动中的物体。当物体的速度超过快门的时间分辨率时，图像会变得模糊。由于场景中的物体通常以不同的速度向不同的方向移动，因此记录图像的退化可能具有空间变化的点扩散函数（PSF）的特点。这种图像的序列性质可用于确定图像各个部分的相对运动。该信息可用于估计空间变化的 PSF。开发了一种对 Landweber 迭代的修改，以利用空间变化的 PSF 生成原始图像的估计值。
