Image sensor calculator |
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Image sensor calculator |
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Image sensor calculator
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Image sensor calculator |
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Image sensor calculator |
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Camera Geometry Sensor and Lens Calculator |
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The Calculator is intended for convenient calculation :
| • | Aspect Ratio of Image sensor; |
| • | Aspect Ratio of active area of Image sensor (=Aspect ratio of the output image); |
| • | Crop-factor. |
About use of the calculator, see: Specifying active area size of the image sensor/
The calculator can be invoked by the Image sensor calculator 
button in the Sensor and Lens box.
The calculator consists from the three lines:
As a result of click on the left button To the Hor. and Vert. boxes you can type any values.
In the Aspect ratio box the calculated ratio of horizontal to vertical numbers of pixels of the Image sensor will be displayed.
Attention! To calculate the Aspect ratio of Image sensor you must divide maximum number of horizontal pixels to the maximum number of vertical pixels in all possible modes of the camera. In general, the maximum number of pixels may be different from those specified in the Sensitivity and Resolution window..
For example, a camera has the following resolution modes 1920 x 1080, 1280 x 720, 640 x 360, 320 x 180, 160 x 90 1600 x 1200, 1280 x 960, 800 x 600, 640 x 480, 400 x 300, 320 x 240, 160 x120
The maximum horizontal number of pixels - 1920, The maximum vertical number of pixels - 1200. Probable Aspect ratio of the image sensor 1920/1200=1,6=16:10 Clicking the right button |
As a result of click on the left button To the Hor. and Vert. boxes you can type any values.
In the Aspect ratio box the calculated ratio of horizontal to vertical numbers of pixels of the output image will be displayed. Clicking the right button |
The Crop factor value is calculated from the Aspect ratio of the Image sensor and Aspect ratio of the output image.
Attention! The calculated value of Crop has sense only if the active area on the image sensor does not touch the edges of the image sensor. Otherwise Crop = 1 and the result of calculation does not matter.
See more: Specifying the crop factor
To be able to calculate Crop it is necessary that numbers of pixels of image sensor are greater than or equal to the numbers in pixels of the active area. Otherwise, the Crop box displays Error. Clicking the right button |
