–1. FPS (Frame Rate)
Definition: The number of image frames that a camera can capture per second.
Influencing factors: sensor readout speed, image processing capabilities, interface bandwidth, etc.
–2. MP (Mega Pixels)
Definition: The resolution of an image.
Influencing factors: sensor size and pixel density.
—3. Relationship between FPS and MP
Inverse relationship: Under the same conditions, the higher the resolution (larger the MP), the lower the frame rate (FPS), because it takes more time to process more pixels.
Bandwidth limitation: When the interface bandwidth is limited, high-resolution images will occupy more bandwidth, resulting in a decrease in frame rate.
Sensor readout speed: The slower readout speed of a high-resolution sensor will also reduce the frame rate.
—4. Trade-offs in practical applications
High frame rate requirements: For example, for high-speed motion capture, a lower resolution is usually selected to maintain a high frame rate.
High resolution requirements: For example, for precision detection, a higher resolution is usually selected, but the frame rate will be reduced accordingly.
In industrial cameras, FPS (frame rate) and MP (megapixel) are usually expressed in the form of “resolution @ frame rate”, such as 5 MP @ 30 FPS. This expression method intuitively and clearly shows the core performance of the camera.
Example:
5 MP @ 30 FPS means that the camera can capture 30 frames per second at a resolution of 5 million pixels.
In some cases, the frame rate may be affected by lighting, interface bandwidth, etc., so pay attention to the test conditions.
In addition to resolution and frame rate, you also need to pay attention to sensor type, interface type, etc.
简体中文 
English