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Calculating the Line Scan Camera Line Frequency

Time:2024.03.08
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  With the continuous development of technology, line scan cameras have become an integral part of modern photography. However, how to accurately calculate the line rate of a line scan camera to improve shooting efficiency and ensure image quality? This article will provide you with a detailed introduction to the line scan camera line rate calculation method, to help you better master this skill.

  First, what is a line scan camera line rate?

  Line scan camera line rate refers to the number of times the camera scans the Sensor in a certain period of time. Simply put, the higher the line rate, the larger the image area scanned by the camera per unit of time, thus realizing a higher shooting speed. Therefore, it is important to set the line rate of the line scan camera reasonably to improve the shooting efficiency.

Line Scan Camera Line Frequency


  Two、Camera line rate calculation method

  1. Understanding Sensor Size and Sensor
  First of all, we need to understand the size and Sensor of the Sensor, the larger the size of the Sensor, the longer the exposure time required; the higher the Sensor, the more pixels per inch, the shorter the time required to complete the scan. Therefore, when calculating the line rate of a line scan camera, we need to take these two factors into consideration.

  2. Determine the shooting scene and requirements
  Next, we need to determine the line rate of the line scan camera according to the specific shooting scenario and requirements; for example, if we want to shoot a moving object, we need to choose a higher line rate to capture the details of the moving process; whereas, when shooting a static object, a lower line rate may be more appropriate.

  3. Calculating the line rate formula
  Based on the above two steps, we can use the following formula to calculate the line rate of a line scan camera:
  line rate = (Sensor size * Sensor) / (Exposure time * pixels per millimeter)
  Where, exposure time is the actual time spent by the camera during a shot (including shutter open time, exposure time, and shutter close time); the number of pixels per millimeter is the number of pixels per inch on the Sensor.

  4. Validating the calculation results
  In order to verify whether the calculation results are reasonable, we can compare the calculated line rate with the actual line scan camera. Through the actual shooting test, we can find out which line rate setting can meet our shooting needs, so as to improve the shooting efficiency and ensure the image quality.

  The line scan camera line rate calculation method is a skill that photographers must master in the actual shooting process. Through the reasonable setting of line scan camera line rate, we can not only improve the shooting efficiency, but also to ensure the stable output of the image quality. I hope this article can provide you with useful reference information, wish you in the photography road farther and farther!

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