This megapixel calculator brings it all together. The same metric can also be used to describe the resolution of photos, or digital screens. Too my understanding we should assign the value of 20mm for F35, therefore F35=20mm to calculate the Real Focal Length (Fr).Īs a result Fr = (20 * 6.17) /34.6 = 3. Size 768 x 494 379,392 pixels Pixel count 379.39 K P pixels Resolution 379.39 K P pixels Aspect Ratio. The equation is as follows: Fr = (F35*Sw)/34.6 Therefore, users should calculate the Real Focal Length (Fr) from the equation specified in Pix4D’s user manual. Next, you need to calculate the Real Focal Length (Fr) provided DJI’s camera is a 20mm focal length (35mm equivalent). According to this article, the sensor should have approximately the following dimensions: Real Sensor Width = 6.17mm and Real Sensor Height = 4.55mm. Pixel per inch values closer to 150 might show very slight blurriness and pixelation within fine details when examined close up, but will not be noticeable when viewing from 2 feet away. I contacted Sony and DJI and was not able to find the exact sensor datasheet at this time, although found a article online providing a reference to sensor sizes Click Here. Second, we could calculate how many pixels on. So the screens resolution will be 384 (W) x 288 (H). And then these numbers would be divided by the pixel pitch 10mm. So we could have the width measured in millimeter 3840mm, and we have the height measured in millimeter 2880mm. not actually seeing true print size, but if you know your monitors DPI (dots per inch), also known as PPI (pixels per inch), you can work around this. The real sensor width (Sw) should be provided from DJI’s specification for the imaging sensor used - Sony EXROM R BSI 1/2.3" Sensor. For example, if there is a P10 screen with the size of 3.84m x 2.88m. According to the Pix4D User Manual, you need to calculate the GSD from the following variables: Real Sensor Width (Sw), Real Focal Length (Fr), Flight Height (H), and Image Width (imW).
#Pixel resolution calculator professional#
I am looking at a similar situation using the DJI Phantom 3 Professional and the Pix4D GSD Calculator.
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