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| [[CS Camera Slow Shutter manual/zh|查看中文]] | | [[CS Camera Slow Shutter manual/zh|查看中文]] |
| | | |
| + | === Introduction === |
| + | CS series cameras support slow shutter mode, the following mainly introduces the slow shutter application of CS-MIPI-IMX307. |
| | | |
| + | === Version description === |
| + | For the record of version , please refer to the [[CS-MIPI-IMX307 version log|VEYE-MIPI-IMX307 Version Log]]. |
| | | |
− | <br /> | + | Slow shutter is supported only after FV2.32, and is improved in later versions of FV2.35. '''Customers who use the slow shutter function must upgrade to a later version of FV2.35.''' |
| + | |
| + | === Use restriction === |
| + | |
| + | ==== SYNC mode ==== |
| + | Do not support framerate continuously adjustable function and slow shutter mode. |
| + | |
| + | ==== Exposure time effective delay and transmission delay ==== |
| + | After configuring an me time, it is recommended to take the 5th frame to use. |
| + | |
| + | === IMX307 feature === |
| + | The exposure time of the sensor is adjusted by ''one line time——'' t<sub>r</sub>. For IMX307, the supported exposure time range is [tr,0x3FFFF*tr]. |
| + | {| class="wikitable" |
| + | |+IMX307 exposure time range |
| + | !camera mode |
| + | !t<sub>r</sub> |
| + | !min exp time |
| + | !max exp time |
| + | !min framerate |
| + | !max framerate |
| + | |- |
| + | |1920*1080 |
| + | |30us |
| + | |30us |
| + | |7,767,200us |
| + | |0.13 |
| + | |30 |
| + | |- |
| + | |1280*720 |
| + | |22us |
| + | |22us |
| + | |5,825,400us |
| + | |0.18 |
| + | |60 |
| + | |- |
| + | |640*480 |
| + | |15us |
| + | |15us |
| + | |3,877,855us |
| + | |0.26 |
| + | |130 |
| + | |} |
| + | |
| + | * The current actual exposure time and gain value can be read through expostate at any time. |
| + | |
| + | <code>./cs_mipi_i2c.sh -r -f expostate</code> |
| + | |
| + | === Autoexposure mode slow shutter configuration === |
| + | |
| + | *Set to auto exposure mode |
| + | |
| + | <code>./cs_mipi_i2c.sh -w -f expmode -p1 0</code> |
| + | |
| + | *Set to slow shutter mode |
| + | |
| + | <code>./cs_mipi_i2c.sh -w -f expfrmmode -p1 0</code> |
| + | |
| + | *Set slowshuttergain |
| + | |
| + | <code>./cs_mipi_i2c.sh -w -f slowshuttergain -p1 X -p2 Y</code> |
| + | |
| + | *Set aetime |
| + | |
| + | <code>./cs_mipi_i2c.sh -w -f aetime -p1 [max exptime]</code> |
| + | |
| + | In slow shutter mode, the scene gradually darkens, AE algorithm will first increase the exposure time, after reaching the upper limit of 1/framerate, and then increase the gain, after reaching the threshold shuttergain value, continue to increase the exposure time (up to aetime), when the frame rate will be reduced. |
| + | |
| + | === Manual exposure mode configuration === |
| + | |
| + | * Set framerate |
| + | |
| + | <code>./cs_mipi_i2c.sh -w -f videofmt -p1 1920 -p2 1080 -p4 [framerate]</code> |
| + | |
| + | framerate range is [min framerate , max framerate]. |
| + | |
| + | * Set to manual exposure mode |
| + | |
| + | <code>./cs_mipi_i2c.sh -w -f expmode -p1 1</code> |
| + | |
| + | * Set to manual gain(Optional) |
| + | |
| + | <code>./cs_mipi_i2c.sh -w -f meagain -p1 X -p2 Y</code> |
| + | |
| + | <code>./cs_mipi_i2c.sh -w -f medgain -p1 X -p2 Y</code> |
| + | |
| + | * Set manual |
| + | |
| + | <code>./cs_mipi_i2c.sh -w -f metime -p1 [exptime]</code> |
| + | |
| + | metime upper limit is(1000000/framerate)us. |