Effective Focal Length,有效焦距。 3.9 BFL Back Focal Length,后焦距。 3.10 CRA 主入射角度(CRA)。通过光圈中心并最终到达成像平面最边缘的光线叫做主光线,而主光线与水平方向的夹角叫主入射角度。 镜头与sensor的CRA必须要匹配,否则会产生较严重的暗角、偏色等问题。 3.11 IR-CUT IR=infrared=红外线;CUT=滤、...
3.8 EFL Effective Focal Length,有效焦距。 3.9 BFL Back Focal Length,后焦距。 3.10 CRA 主入射角度(CRA)。通过光圈中心并最终到达成像平面最边缘的光线叫做主光线,而主光线与水平方向的夹角叫主入射角度。 镜头与sensor的CRA必须要匹配,否则会产生较严重的暗角、偏色等问题。 3.11 IR-CUT IR=infrared=红外线;...
3, there is shown a flow chart of the general sequence for the operation of the microcomputer of the controller 50. In the sequence shown in FIG. 3, when a main power switch (not shown) is turned on, the changeable focal length camera is set to its initial state at a step S1. ...
Formula of converting lens focal lengths; Chart compari... Keppler,Herbert,Martin,... - 《Popular Photography》 被引量: 0发表: 1997年 Image Measurement System of Lens Focal Length with CCD Camera An image measurement system of lens focal length, based on magnification method, with CCD camera...
On the Magic4 Ultimate, measured texture is very high at all focal lengths and usually higher than on the competition. 5 lux 20 lux 100 lux 1000 lux DXOMARK CHART (DMC) detail preservation score per focal length This graph shows the evolution of the DMC detail preservation score with respec...
It is also evident from the GMB chart and other photos that I’ve taken over my time with the iPhone 5 that the revised ISP also has better auto white balance.The remainder of the well-lit tests really tell the same story. In outdoors lighting (with both cameras automatically selecting ...
The flow chart of the improved grey wolf algorithm. Full size image The detailed pseudo code of the improved GWO algorithm is shown in algorithm 1. Compared to the basic GWO algorithm, the improved grey wolf algorithm has the following characteristics: (1) Improved grey wolf algorithm introduces...
DXOMARK CHART (DMC) detail preservation score per focal length This graph shows the evolution of the DMC detail preservation score with respect to the full-frame equivalent focal length for different light conditions. The x-axis represents the equivalent focal length measured for each corresponding ...
EV 0 is f/1 and 1 secondbecause 20= 1. The math just works out that way, since any number to power 0 is value 1, and log(1) of any base is 0. So Stop Number 0 is the obvious base, and any f/stop on the EV 0 row of the EV chart shows this relation (if using the pre...
A primary lens with 20 mm focal length is used and the image of 40 × 71 cm resolution chart covers 29.9 × 22.4 mm FOV of the sensor. After calibrating the transmission spectrum of the coding mask, we apply our reconstruction algorithm to retrieve the spatio-spectral ...