![Photon Focus CameraLink MV1-D1312 series Скачать руководство пользователя страница 26](http://html1.mh-extra.com/html/photon-focus/cameralink-mv1-d1312-series/cameralink-mv1-d1312-series_user-manual_1553524026.webp)
4 Functionality
Simultaneous readout mode (exposure time < readout time)
The frame rate is given by the
readout time. Frames per second equal to the inverse of the readout time.
Simultaneous readout mode (exposure time > readout time)
The frame rate is given by the
exposure time. Frames per second equal to the inverse of the exposure time.
The simultaneous readout mode allows higher frame rate. However, if the exposure time
greatly exceeds the readout time, then the effect on the frame rate is neglectable.
In simultaneous readout mode image output faces minor limitations. The overall
linear sensor reponse is partially restricted in the lower grey scale region.
When changing readout mode from sequential to simultaneous readout mode
or vice versa, new settings of the BlackLevelOffset and of the image correction
are required.
Sequential readout
By default the camera continuously delivers images as fast as possible ("Free-running mode")
in the sequential readout mode. Exposure time of the next image can only start if the readout
time of the current image is finished.
e x p o s u r e
r e a d o u t
e x p o s u r e
r e a d o u t
Figure 4.2: Timing in free-running sequential readout mode
When the acquisition of an image needs to be synchronised to an external event, an external
trigger can be used (refer to Section 4.4). In this mode, the camera is idle until it gets a signal
to capture an image.
e x p o s u r e
r e a d o u t
i d l e
e x p o s u r e
e x t e r n a l t r i g g e r
Figure 4.3: Timing in triggered sequential readout mode
Simultaneous readout (interleave exposure)
To achieve highest possible frame rates, the camera must be set to "Free-running mode" with
simultaneous readout. The camera continuously delivers images as fast as possible. Exposure
time of the next image can start during the readout time of the current image.
e x p o s u r e n
i d l e
i d l e
r e a d o u t n
e x p o s u r e n + 1
r e a d o u t n + 1
f r a m e t i m e
r e a d o u t n - 1
Figure 4.4: Timing in free-running simultaneous readout mode (readout time> exposure time)
24
Содержание CameraLink MV1-D1312 series
Страница 1: ...User Manual MV1 D1312 I CameraLink Series CMOS Area Scan Camera MAN041 09 2010 V2 5...
Страница 2: ......
Страница 4: ...2...
Страница 8: ...CONTENTS 6...
Страница 14: ...2 How to get started CameraLink 12...
Страница 24: ...3 Product Specification 22...
Страница 49: ...Figure 4 30 Example of decimation 2 on image of injection needle 4 3 Reduction of Image Size 47...
Страница 72: ...4 Functionality Figure 4 56 Unsharp Mask Examples 70...
Страница 110: ...8 Mechanical and Optical Considerations 108...
Страница 112: ...9 Warranty 110...
Страница 114: ...10 References 112...
Страница 118: ...A Pinouts 116...