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===== Rolling shutter =====
===== Rolling shutter =====
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This section applies to model: MV-MIPI-IMX178M.
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For a rolling shutter sensor, such as IMX178, a complete image frame requires two image cycles to complete the process from exposure to output. So the maximum frame rate is half of the video streaming mode.
For a rolling shutter sensor, such as IMX178, a complete image frame requires two image cycles to complete the process from exposure to output. So the maximum frame rate is half of the video streaming mode.
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The following figure shows an example of a trigger period with Trigger Number set to 2:<br />
The following figure shows an example of a trigger period with Trigger Number set to 2:<br />
[[File:Rolling shutter Normal trigger mode new2.png|alt=|center|thumb|799x799px|Normal trigger mode( Rolling shutter)]]
[[File:Rolling shutter Normal trigger mode new2.png|alt=|center|thumb|799x799px|Normal trigger mode( Rolling shutter)]]
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===== Global shutter =====
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===== Smartsens's Global shutter =====
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For a global shutter sensor, such as the SC130GS, a complete image frame requires an exposure time and a read out cycle to complete. The second frame can be exposed only after the read out cycle is completed.
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This section applies to model: MV-MIPI-SC130M,RAW-MIPI-SC132M.
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For Smartsens's global shutter sensor, such as the SC130GS, a complete image frame requires an exposure time and a read out cycle to complete. The second frame can be exposed only after the read out cycle is completed.
In normal trigger mode, for the global shutter sensor, we call one exp time and one read out cycle a '''''trigger cycle'''''.
In normal trigger mode, for the global shutter sensor, we call one exp time and one read out cycle a '''''trigger cycle'''''.
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Therefore the maximum frame rate in trigger mode is influenced by the length of the exposure time.
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Therefore the maximum frame rate in trigger mode is influenced by the length of the exposure time,and cannot achieve the same frame rate as the video streaming mode.
The following figure shows an example of a trigger period with Trigger Number set to 2:
The following figure shows an example of a trigger period with Trigger Number set to 2:
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[[File:Normal trigger mode (Global shutter).png|center|thumb|800x800px|Normal trigger mode (Global shutter)]]
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[[File:Normal trigger mode (Global shutter).png|center|thumb|800x800px|Smartsens's Normal trigger mode (Global shutter)]]
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<br />For RAW series modules, Exposure Delay is not supported and Trigger number only support 1.
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===== Sony's Global shutter =====
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This section applies to model: MV-MIPI-IMX296M,MV-MIPI-IMX265M,MV-MIPI-IMX264M.
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For Sony's global shutter sensor, the readout of the previous frame and the exposure of the next frame can be synchronized in the trigger mode.
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Therefore, it is possible to achieve almost the same external trigger frame rate as in video streaming mode.
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[[File:Sony's Normal trigger mode (Global shutter).png.png|link=http://wiki.veye.cc/index.php/File:Sony's%20Normal%20trigger%20mode%20(Global%20shutter).png.png|center|thumb|800x800px|Sony's Normal trigger mode (Global shutter)]]
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==== High-speed continuous trigger mode ====
==== High-speed continuous trigger mode ====
===== Rolling shutter =====
===== Rolling shutter =====
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This section applies to model: MV-MIPI-IMX178M.
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In high-speed trigger mode, assume '''Trigger Number''' is N, frames 2 to N are output immediately after the previous frame and there is no more trigger interval. This allows the same maximum frame rate to be achieved as in video streaming mode.
In high-speed trigger mode, assume '''Trigger Number''' is N, frames 2 to N are output immediately after the previous frame and there is no more trigger interval. This allows the same maximum frame rate to be achieved as in video streaming mode.