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2, because of the subject screen, photographic equipment, photographic equipment, sensors and monitors are digital devices, is to point the way existing, LED display on the point of the image after the optical lens through the photographic equipment and photographic equipment,[link widoczny dla zalogowanych], sensors correspondence between the decision point of the sensor sampling efficiency for each point.
Figure 2 shows the relationship between the two, because the relative distance between the two different, LED display different spacing, the relative angle between the two different orientation, LED screen highlights of some of the area and not on the proportion of different areas, etc. factors will lead to the coincidence effect of each point is different, complete coincidence of the point sensor in the sensor the higher the brightness value, while the proportion of overlapped at some point is very small,[link widoczny dla zalogowanych], the sensor sensing the brightness value lower,[link widoczny dla zalogowanych], this combination
After the image appears a photosensitive efficiency, and the subject of the image overlay, image in the camera produces similar results as the water ripples (Figure 1) results. 3,[link widoczny dla zalogowanych], the solution of Figure 2 results from the analysis, there are two ways to reduce the effect of such interference, one approach is to try to artificially increase the distance between the midpoint of the two dot matrix optical gap, corresponding to a point as much as possible the number of mid-point of another matrix, so that the efficiency of each point of the photosensitive similar LED display solution is to increase the density of points,
so that photographic equipment sensor corresponding to each point on the number of LED points; Another way is to make LED display screen light-emitting area of the body points in the share of the total area increased, so reducing the dark zone, you can completely change the efficiency of the sensor between points of different problems in order to improve the "ripple" problem. Figure 3 confirms the results of the above from another point of view of inference.
Scan screen appears indoor horizontal stripes when we scan the line of indoor video screen when the body will often appear as shown in Figure 4, horizontal stripes, the principle is very simple display of the line scan frequency is too low, then What we need to solve the scanning frequency of such problems?