Automatic Ship Photo Interpretation by the Method of Moments
Automatic Ship Photo Interpretation by the Method of Moments
复制标题
矩量法自动判读船舶照片
DOI：
10.1109/t-c.1971.223408
复制
发表时间：
1971
影响因子：
3.7
通讯作者：
M. H. Wright
中科院分区：
文献类型：
--
作者：
F. Smith;M. H. Wright
报告了一项研究的结果，该研究是为了确定使用图像的空间矩作为表征图像的特征来自动解释船舶照片的可行性。照片判读包括估计船的位置、方向、尺寸和航向。该研究使用模拟船舶图像，其中船舶的轮廓随机填充黑色和白色单元，以提供船舶的低分辨率高对比度图像，例如可以通过高分辨率雷达获得的图像。估计使用由原始空间矩的变换形成的不变矩的多项式，e。例如，在一个实施例中，密度不变矩、中心矩、旋转不变矩等。使用物理推理选择不变矩的变换。使用线性回归选择多项式的最佳矩。这些低分辨率图像的矩量法的性能被认为是可比的人类photointerpreter和某些启发式技术，这将是更难以实现比矩量法。
The results of a study undertaken to determine the feasibility of automatic interpretation of ship photographs using the spatial moments of the image as features to characterize the image are reported. The photo interpretation consisted of estimating the location, orientation, dimensions, and heading of the ship. The study used simulated ship images in which the outline of the ship was randomly filled with black and white cells to give a low-resolution high-contrast image of the ship such as might be obtained by a high-resolution radar. The estimates were made using polynomials of invariant moments formed by transformations of the original spatial moments, e. g., density-invariant moments, central moments, rotation-invariant moments, etc. The transformations to invariant moments were chosen using physical reasoning. The best moments for the polynomials were chosen using linear regression. The performance of the method of moments on these low-resolution images was found to be comparable to that of a human photointerpreter and to certain heuristic techniques that would be more difficult to implement than the method of moments.