The process of rectification finds the pixel coordinates of the input image corresponding to the pixel coordinates of the rectified image and then determines the pixel values of the rectified image through interpolation using the pixel values of the input image .
Inverse mapping rectification, which maps ([x.sub.r], [y.sub.r]), the coordinates of the rectified image, onto (x, y) , the coordinates of the input image, entails the following procedure: First, ([x.sub.n], [y.sub.n]) , undistorted coordinates in the normalized camera coordinate system, which corresponds to the input image, are calculated as
where ([x.sub.c], [y.sub.c], [z.sub.c]) are coordinates in the camera coordinate system that corresponds to the input image, [KK.sub.rect] is the 3 x 3 intrinsic parameter matrix of the ideally aligned camera, and R is the 3 x 3 rectification rotation matrix.
Rectification entails complex matrix calculations for coordinate transformation, shown in (1) and (5), and requires the calculations of seventh-degree polynomials for distortion correction, shown in (2), (3), and (4).
The list also come with the best possible rectification tasks in order to solve the leakage problem together with the suggested waterproofing material or product brand can be used to rectify the defects.
The paper focusing on the suggested best possible rectification works for the asbestos roof and for the clay or slate tile roofing.
Table 1: List of rectification frameworks to overcome the defects pertaining to the clay or slate roof tiles.
Sans nul doute, si cet ouvrage permet d'esquisser un premier pas vers la nouvelle orthographe, tout lecteur soucieux de reflechir plus profondement a ces questions et de se former aux rectifications
orthographiques aura a coeur de completer son approche par d'autres lectures.
Influence of pH and Concentration Gradient on the Tunable Ionic Current Rectification Performances.
Further, we investigated the rectification behaviors of hour-glass shaped alumina nanochannels with another kind of pH gradient stimuli that the [pH.sub.L] values changed from 10.5 to 3.6, while the p[H.sub.R] was fixed at 10.5 (Figures 4(b) and 4(d)).
Rectification performance can be quantitatively represented by the value r, which is defined as the ratio between the currents measure data voltage of the same amplitude but opposite polarity.
Ionic concentration gradient has been identified as an important factor to influence rectification properties.