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4 Functionality

Black Level Adjustment

The black level is the average image value at no light intensity. It can be adjusted by the
software by changing the black level offset. Thus, the overall image gets brighter or darker.
Use a histogram to control the settings of the black level.

4.2.2

LinLog

®

Overview

The LinLog

®

technology from Photonfocus allows a logarithmic compression of high light

intensities inside the pixel. In contrast to the classical non-integrating logarithmic pixel, the
LinLog

®

pixel is an integrating pixel with global shutter and the possibility to control the

transition between linear and logarithmic mode.

In situations involving high intrascene contrast, a compression of the upper grey level region
can be achieved with the LinLog

®

technology. At low intensities each pixel shows a linear

response. At high intensities the response changes to logarithmic compression (see Fig. 4.7).
The transition region between linear and logarithmic response can be smoothly adjusted by
software and is continuously differentiable and monotonic.

G

r e y

V a l u e

L i g h t I n t e n s i t y

0

%

1 0 0 %

L i n e a r
R e s p o n s e

S a t u r a t i o n

W

e a k c o m p r e s s i o n

V a l u e 2

S t r o n g c o m p r e s s i o n

V a l u e 1

R e s u l t i n g L i n l o g
R e s p o n s e

Figure 4.7: Resulting LinLog2 response curve

LinLog

®

is controlled by up to 4 parameters (

Time1

,

Time2

,

Value1

and

Value2

).

Value1

and

Value2

correspond to the LinLog

®

voltage that is applied to the sensor. The higher the parameters

Value1

and

Value2

respectively, the stronger the compression for the high light intensities.

Time1

and

Time2

are normalised to the exposure time. They can be set to a maximum value of 1000,

which corresponds to the exposure time.

Examples in the following sections illustrate the LinLog

®

feature.

LinLog1

In the simplest way the pixels are operated with a constant LinLog

®

voltage which defines the

knee point of the transition.This procedure has the drawback that the linear response curve

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Содержание MV1-D1024E

Страница 1: ...Photonfocus MV1 D1024E Camera Series CMOS camera with Camera Link interface MAN064 02 2020 V1 1...

Страница 2: ...is assumed by Photonfocus AG for its use Photonfocus AG reserves the right to make changes to this information without notice Reproduction of this manual in whole or in part by any means is prohibite...

Страница 3: ...Image Acquisition 21 4 1 1 Readout Modes 21 4 1 2 Constant Frame Rate CFR 23 4 2 Pixel Response 23 4 2 1 Linear Response 23 4 2 2 LinLog 24 4 2 3 Skimming 28 4 3 Reduction of Image Size 29 4 3 1 Regi...

Страница 4: ...61 4 12 Configuration Interface CameraLink 64 5 Precautions 65 5 1 IMPORTANT NOTICE 65 6 Hardware Interface 69 6 1 Connectors 69 6 1 1 CameraLink Connector 69 6 1 2 Power Supply 69 6 1 3 Trigger and...

Страница 5: ...0 1 Directives and General Standards 99 10 2 Country specific Information 99 10 2 1 For customers in the USA 99 10 2 2 For customers in Canada 100 10 2 3 Pour utilisateurs au Canada 100 10 3 Life supp...

Страница 6: ...CONTENTS 6 of 109 MAN064 02 2020 V1 1...

Страница 7: ...TRUCTIONS FOR USE BEFORE OPERATING THE CAMERA STORE THE INSTRUCTIONS FOR USE FOR FURTHER READING Photonfocus AG Bahnhofplatz 10 CH 8853 Lachen SZ Switzerland www photonfocus com info photonfocus com 4...

Страница 8: ...1 55 451 00 00 Email support photonfocus com Table 1 1 Photonfocus Contact 1 4 Sales Offices Photonfocus products are available through an extensive international distribution network and through our...

Страница 9: ...er rors 1 6 Legend In this documentation the reader s attention is drawn to the following icons Important note additional information Important instructions General warning possible component damage...

Страница 10: ...1 Preface 10 of 109 MAN064 02 2020 V1 1...

Страница 11: ...the system CameraLink cables can be purchased from directly Photonfocus www photonfocus com in some countries A suitable power supply A suitable power supply can be purchased at your Photonfocus deale...

Страница 12: ...CameraLink cable see Fig 2 2 Figure 2 2 Camera with frame grabber power supply and cable Do not connect or disconnect the CameraLink cable while camera power is on For more information about CameraLi...

Страница 13: ...ote on the support page at www photonfocus com 9 Install the camera software PFRemote Please follow the instructions of the PFRemote setup wizard Figure 2 3 Screen shot PFremote setup wizard 10 Start...

Страница 14: ...2 How to get started CameraLink Figure 2 4 PFRemote start window 14 of 109 MAN064 02 2020 V1 1...

Страница 15: ...igh resistance to blooming Extremely high image contrast achieved by LinLog technology Ideal for high speed applications global shutter Maximal frame rate at full resolution 150 fps Greyscale resoluti...

Страница 16: ...look up tables 12 to 8 bit on user defined image region Region LUT Features Greyscale resolution 12 bit 10 bit 8 bit Region of Interest ROI Linear Mode LinLog Mode Skimming Up to 512 regions of intere...

Страница 17: ...amera The housing and the pinout of the power connector and the CameraLink are identical The release of the MV1 D1024E 160 camera was required due to the non availability of some electronic components...

Страница 18: ...A pixel 30 C Full well capacity 200 ke Spectral range 400 nm 900 nm Responsivity 120 x 103 DN J m2 610 nm 8 bit gain 1 Optical fill factor 35 Dynamic range up to 120 dB with LinLog Colour format monoc...

Страница 19: ...nput range 5 15 V DC Max power consumption 4 0 W Lens mount C Mount CS Mount optional Dimensions 55 x 55 x 40 mm3 Mass 210 g Conformity CE RoHS WEEE Table 3 4 Physical characteristics and operating ra...

Страница 20: ...for frame grabber configuration Footnotes 1 assuming 16 bit pixel data transmission CameraLink port and bit assignments are compliant with the CameraLink standard see CL Table 3 6 shows the tap config...

Страница 21: ...e time of the next image can start during the readout time of the current image MV1 D1024E 160 CL Sequential readout available Simultaneous readout available Table 4 1 Available readout mode of MV1 D1...

Страница 22: ...ault 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 imag...

Страница 23: ...FR When the CFR mode is switched on the target frame rate for the free running mode can be setting the frame time property Thus fewer images can be acquired than would otherwise be possible When Const...

Страница 24: ...n region between linear and logarithmic response can be smoothly adjusted by software and is continuously differentiable and monotonic G r e y V a l u e L i g h t I n t e n s i t y 0 1 0 0 L i n e a r...

Страница 25: ...m e 1 T i m e 2 m a x 1 0 0 0 Figure 4 8 Constant LinLog voltage in the Linlog1 mode 0 50 100 150 200 250 300 Typical LinLog1 Response Curve Varying Parameter Value1 Illumination Intensity Output gre...

Страница 26: ...ution Fig 4 11 and Fig 4 12 show how the response curve is controlled by the three parameters Value1 Value2 and the LinLog time Time1 Settings in LinLog2 mode enable a fine tuning of the slope in the...

Страница 27: ...igure 4 12 Response curve for different LinLog settings in LinLog2 mode LinLog3 To enable more flexibility the LinLog3 mode with 4 parameters was introduced Fig 4 13 shows the timing diagram for the L...

Страница 28: ...dark areas of an image Skimming provides an adjustable level of in pixel gain for low signal levels It can be used together with LinLog to give a smooth monotonic transfer function from high gain at...

Страница 29: ...ndow and is specified by its position within the full frame and its width and height Fig 4 16 gives some possible configurations for a region of interest and Table 4 2 shows some numerical examples of...

Страница 30: ...139 139 fps 1 ms 130 140 fps 2 ms 115 140 fps 5 ms 85 140 fps 10 ms 60 99 fps 12 ms 53 82 fps Table 4 3 Frame rate of different exposure times sequential readout mode simultaneous readout mode resolut...

Страница 31: ...ng ROIs are not allowed and no row must be read out more than once The individual ROI in a MROI must not overlap and no row should be included in more than one ROI Fig 4 17 compares ROI and MROI the s...

Страница 32: ...4 Functionality Fig 4 18 shows another MROI drawing illustrating the effect of MROI on the image content Figure 4 18 Multiple Regions of Interest with 5 ROIs 32 of 109 MAN064 02 2020 V1 1...

Страница 33: ...n the height of every ROI should be a multiple of 3 Fig 4 19 shows decimation on the full image The rows that will be read out are marked by red lines Row 0 is read out and then every nth row 0 0 x m...

Страница 34: ...4 Functionality 0 0 x m a x y m a x R O I Figure 4 20 Decimation and ROI M R O I 0 R O I M R O I 2 M R O I 1 0 0 x m a x y m a x Figure 4 21 Decimation and MROI 34 of 109 MAN064 02 2020 V1 1...

Страница 35: ...t of the elongation of an injection needle is given in Fig 4 23 In this application the height information is less important than the width information Applying decimation 2 on the original image on t...

Страница 36: ...ve edge of the incoming trigger An additional trigger delay can be applied that delays the start of the exposure by a user defined time see Section 4 4 4 This often used to start the exposure after th...

Страница 37: ...w e r T r i g g e r S o u r c e E X S Y N C C C 1 S o f t t r i g g e r C a m e r a L i n k T M F r a m e G r a b b e r F l a s h C a m e r a 2 D a t a C a m e r a L i n k E X S Y N C C C 1 S o f t t...

Страница 38: ...ure time e x t e r n a l t r i g g e r p u l s e i n p u t t r i g g e r a f t e r i s o l a t o r t r i g g e r p u l s e i n t e r n a l c a m e r a c o n t r o l d e l a y e d t r i g g e r f o r s...

Страница 39: ...the optional external strobe output is controlled by the rising edge of the trigger pulse Timing diagram Fig 4 28 shows the detailed timing for the external trigger mode with pulse width controlled ex...

Страница 40: ...enabled it starts a predefined number of acquisitions after one single trigger pulse The time between two acquisitions and the number of acquisitions can be configured by a user defined value via the...

Страница 41: ...o n t r o l i n t e r n a l s t r o b e c o n t r o l e x t e r n a l s t r o b e p u l s e o u t p u t t d i s o i n p u t t j i t t e r t t r i g g e r d e l a y t e x p o s u r e t s t r o b e d e...

Страница 42: ...ra settings 0 41 s ttrigger offset non burst mode 100 ns duration of 1 row ttrigger offset burst mode 125 ns 125 ns texposure 10 s 0 41 s tstrobe delay 0 0 41 s tstrobe offset non burst mode 100 ns 10...

Страница 43: ...ser can reset the Missed Trigger Counter Missed Burst Trigger Counter The missed burst trigger counter counts trigger pulses that were ignored by the camera in the burst trigger mode because they occu...

Страница 44: ...g e S e n s o r D i g i t a l O f f s e t D i g i t a l G a i n L o o k u p t a b l e L U T C r o s s h a i r s i n s e r t i o n S t a t u s l i n e i n s e r t i o n T e s t i m a g e s i n s e r t...

Страница 45: ...determined automatically in the camera Do not set any reference images when gain or LUT is enabled Read the follow ing sections very carefully Correction values of both reference images can be saved...

Страница 46: ...essary to adjust the black level offset of the camera In the histogram of the black reference image ideally there are no grey levels at value 0 DN after adjustment of the black level offset All pixels...

Страница 47: ...roper gain correction Gain correction algorithm After configuring the camera with a black and grey reference image the camera is ready to apply the gain correction 1 Determine the average value of the...

Страница 48: ...ey reference image must be obtained at uniform illumination Use a high quality light source that delivers uniform illumination Standard illu mination will not be appropriate When looking at the histog...

Страница 49: ...2 1 2 2 1 0 1 1 1 1 0 2 0 1 0 2 0 1 1 2 2 2 o f f s e t c o r r e c t i o n m a t r i x 1 1 2 1 0 9 1 1 2 2 0 9 1 1 1 1 0 8 1 1 0 1 3 0 8 1 0 1 1 2 2 2 g a i n c o r r e c t i o n m a t r i x c o r r...

Страница 50: ...ey level transformation is remapping of the grey level values of an input image to new values The look up table LUT is used to convert the greyscale value of each pixel in an image into another grey v...

Страница 51: ...T transfer curves 0 200 400 600 800 1000 1200 0 50 100 150 200 250 300 Grey level transformation Gain y 255 1023 a x x grey level input value 10 bit DN y grey level output value 8 bit DN a 1 0 a 2 0 a...

Страница 52: ...s 0 200 400 600 800 1000 1200 0 50 100 150 200 250 300 Grey level transformation Gamma y 255 1023 x 1 x grey level input value 10 bit DN y grey level output value 8 bit DN 1 0 1 2 1 5 1 8 2 5 4 0 Figu...

Страница 53: ...don t care LUT 0 is active on whole image X LUT 1 is active on whole image X X LUT 0 active in Region 0 X X X LUT 0 active in Region 0 and LUT 1 active in Region 1 LUT 0 supersedes LUT1 Table 4 6 LUT...

Страница 54: ...U T 1 x 0 0 x 1 0 x 0 1 x 1 1 y 1 0 y 0 0 y 0 1 y 1 1 Figure 4 42 Overlapping Region LUT example L U T 0 L U T 1 L U T 1 L U T 0 0 0 0 0 x m a x y m a x x m a x y m a x Figure 4 43 Region LUT in keyh...

Страница 55: ...and side The result of the application of the Region LUT is shown on the right hand side One Region LUT was applied on a small region on the lower part of the image where the brightness has been incre...

Страница 56: ...4 45 shows two examples of the activated crosshairs with different grey values One with white lines and the other with black lines Figure 4 45 Crosshairs Example with different grey values The x and...

Страница 57: ...s o l u t y a b s o l u t G r e y L e v e l R O I 0 0 x m a x y m a x R O I x a b s o l u t y a b s o l u t G r e y L e v e l R O I R O I x m a x y m a x Figure 4 46 Crosshairs absolute position MAN06...

Страница 58: ...coming external triggers counter width 8 bit no wrap around see also Section 4 4 8 Missed burst trigger counter When the camera is in burst trigger mode see Section 4 4 5 a missed burst trigger counte...

Страница 59: ...of ROI Window X 36 11 Horizontal end position of ROI Window X Window W 1 40 11 Vertical start position of ROI Window Y In MROI mode this parameter is the start position of the first ROI 44 11 Number o...

Страница 60: ...togram only if the image width is a multiple of 1024 in 10 bit or 12 bit mode or 256 in 8 bit mode The height should be a multiple of 1024 In 12 bit mode 4 11 1 Ramp Depending on the configured grey l...

Страница 61: ...of pixels of all grey values are the same Please refer to application note AN026 for the calculation and the values of the LFSR test image 4 11 3 Troubleshooting using the LFSR To control the quality...

Страница 62: ...ximum length The maximal cable length depends on the frequency of the pixel clock At a pixel clock of 80 MHz a length of 8 m can be achieved with a good cable Also CameraLink cables may suffer either...

Страница 63: ...mission errors CameraLink cables contain wire pairs which are twisted in such a way that the cable impedance matches with the LVDS driver and receiver impedance Excess stress on the cable results in t...

Страница 64: ...stead the serial communication is usually routed through the frame grabber For some frame grabbers it might be necessary to connect a serial cable from the frame grabber to the serial interface of the...

Страница 65: ...t use camera power supplies which meet the Limited Power Source LPS requirements If you use a powered hub or a powered switch in PoE or USB vision systems these devices must meet the LPS requirements...

Страница 66: ...e is available on the Photonfocus website www photonfocus com To ensure that the examples will work properly in your application you must adjust them to meet your specific needs and must carefully tes...

Страница 67: ...lectronic parts Avoid the generation of ESD during cleaning Take only a small amount of detergent to clean the camera body Keep in mind that the camera body complies to the IP40 standard Make sure the...

Страница 68: ...5 Precautions 68 of 109 MAN064 02 2020 V1 1...

Страница 69: ...w of the CameraLink camera The CameraLink interface and connector are specified in CL For further details including the pinout please refer to Appendix Appendix A This connector is used to transmit co...

Страница 70: ...he internal ESD protection and the optocoupler In order to use the strobe output the internal optocoupler must be powered with 5 15 V DC The STROBE signal is an open collector output therefore the use...

Страница 71: ...d the serial communication Data signals CameraLink data signals contain the image data In addition handshaking signals such as FVAL LVAL and DVAL are transmitted over the same physical channel Camera...

Страница 72: ...c k C C S i g n a l s S e r i a l I n t e r f a c e F r a m e g r a b b e r C a m e r a L i n k Figure 6 3 CameraLink interface system The frame grabber needs to be configured with the proper tap and...

Страница 73: ...an be controlled by PFRemote and PFLib respectively To grab an image use the software or the SDK that was delivered with your frame grabber Figure 7 1 PFRemote and PFLib in context with the CameraLink...

Страница 74: ...available in the SDK documentation SW002 7 5 Graphical User Interface GUI PFRemote consists of a main window Fig 7 2 and a configuration dialog In the main window the camera port can be opened or clo...

Страница 75: ...l of your frame grabber in the PFRemote directory and rename it to clser dll The PortBrowser will then indicate this DLL as clser dll at PFRemote directory After connecting the camera the device can b...

Страница 76: ...mera and reset the configuration to the factory defaults 7 6 Device Properties Cameras or sensor devices are generally addressed as device in this software These devices have properties that are acces...

Страница 77: ...he configuration dialog Figure 8 1 Frame rate and average value indication Frame Rate fps Shows the actual frame rate of the camera in frames per second Update To update the value of the frame rate cl...

Страница 78: ...per second can be varied from almost 0 up to the maximum frame rate Thus fewer images can be acquired than would otherwise be possible When Constant Frame Rate is switched off the camera delivers imag...

Страница 79: ...le the simultaneous readout mode Combination of property Trigger Interleave and property LinLog Mode is not available Combination of property Trigger Interleave and property Trigger LevelControlled is...

Страница 80: ...nterest ROI is defined as a rectangle X Y W H where X X coordinate starting from 0 in the upper left corner Y Y coordinate starting from 0 in the upper left corner W Window width in steps of 8 pixels...

Страница 81: ...n y direction and its height The width and the horizontal offset are specified by X and W settings The maximum frame rate in MROI mode depends on the number of rows and columns being read out Overlapp...

Страница 82: ...te Interface Trigger The Trigger signal is applied to the camera by the CameraLink frame grabber I O Trigger The trigger signal is applied directly to the camera on the power supply connector Exposure...

Страница 83: ...the input trigger edge to the rising edge of the strobe output signal Number of Burst Triggers Set the number of burst Burst Trigger Period ms Set the time between the burst in milliseconds Burst Trig...

Страница 84: ...near feedback shift register pseudo random image The pattern depends on the grey level resolution Ramp Test image Values of pixel are incremented by 1 starting at each row The pattern depends on the g...

Страница 85: ...de 2x Digital gain 2 4x Digital gain 4 8x Digital gain 8 Digital Offset Substracts an offset from the data Only available in gain mode Fine Gain The fine gain can be used to adjust the brightness of t...

Страница 86: ...ransfer curve for contrast expansion This camera performs a 12 to 8 bit mapping so that 4096 input grey levels can be mapped to 256 output grey levels 0 to 4096 and 0 to 255 This camera support 2 LUT...

Страница 87: ...coordinate of region LUT starting from 0 in the upper left corner W Region LUT window width in steps of 2 pixel H Region LUT window height Set to max ROI Set Region LUT window to maximal ROI X 0 Y 0 W...

Страница 88: ...global shutter and the possibility to control the transition between linear and logarithmic mode See also the corresponding section in the camera manual There are 3 predefined LinLog settings availab...

Страница 89: ...Skimming is a Photonfocus proprietary technology to enhance detail in dark areas of an image Skimming Skimming value If 0 Skimming is disabled See also the corresponding section in the camera manual M...

Страница 90: ...at compensate for non uniformities caused by the sensor the lens or the illumination Off No correction Offset Activate offset correction Offset Hotpixel Activate offset and hot pixel correction Hotpix...

Страница 91: ...hen on the Set Black Ref Button If only offset and hot pixel correction is needed it is not necessary to calibrate a grey image see Calculate Gain Correction The gain correction is based on a grey ref...

Страница 92: ...ame of the connected camera Typecode Type code of the connected camera Serial Serial number of the connected camera FPGA Sensor Revision Firmware revision of built in FPGA on the sensor PCB of the con...

Страница 93: ...gger or from I O trigger interface Missed Burst Trigger This is a counter for burst trigger pulses that were blocked because the burst trigger pulse was received during the last burst is not yet finis...

Страница 94: ...8 Graphical User Interface GUI 94 of 109 MAN064 02 2020 V1 1...

Страница 95: ...gainst vibration shock moisture and dust The original packaging protects the camera adequately from vibration and shock during storage and transport Please either retain this packaging for possible la...

Страница 96: ...the screws is shown in Fig 9 2 The ring can now be screwn upwards or downwards by turning the lens 3 To adjust the back focus fully open the aperture of the lens and set the focus to infinite 4 Start...

Страница 97: ...of the most common contaminants Workshop air supply is not appropriate and may cause permanent damage to the sensor 3 If further cleaning is required use a suitable lens wiper or Q Tip moistened with...

Страница 98: ...HUBY 340 Q tips Hans J Michael GmbH Germany Methanol Fluid Johnson Matthey GmbH Germany Semiconductor Grade 99 9 min Assay Merck 12 6024 UN1230 slightly flammable and poisonous www alfa chemcat com 2...

Страница 99: ...ts EN 61000 4 2 2009 Electronic discharge immunity tests EN 61000 4 3 2006 A1 2008 A2 2010 Radiated radio frequency electromagnetic field immunity test EN 61000 4 4 2012 Electrical fast transient burs...

Страница 100: ...atus complies with the Class A limits for radio noise emissions set out in Radio Interference Regulations 10 2 3 Pour utilisateurs au Canada Cet appareil est conforme aux normes Classe A pour bruits r...

Страница 101: ...sure that your warranty remains in force adhere to the following rules 1 Do not open the housing or destroy the warranty seal of the camera Touching internal electronic components of the camera may da...

Страница 102: ...ctions in the corresponding chapter of this manual 9 Transport and store the camera in its original packaging only and protect the sensor and the lens mount with a camera body cap 10 Read the manual c...

Страница 103: ...ote LinLog Photonfocus December 2002 AN007 Application Note Camera Acquisition Modes Photonfocus March 2004 AN008 Application Note Photometry versus Radiometry Photonfocus December 2004 AN010 Applicat...

Страница 104: ...12 References 104 of 109 MAN064 02 2020 V1 1...

Страница 105: ...ent of the power supply plug is given in Table A 2 It is extremely important that you apply the appropriate voltages to your camera Incorrect voltages will damage or destroy the camera Figure A 1 Powe...

Страница 106: ...be signal Table A 2 Power supply plug pin assignment A 2 CameraLink Connector The pinout for the CameraLink 26 pin 0 5 Mini D Ribbon MDR connector is according to the CameraLink standard CL and is lis...

Страница 107: ...12 I P_CC4 Positive LVDS Input Camera Control 4 CC4 13 PW SHIELD Shield 14 PW SHIELD Shield 15 O P_XD0 Positive LVDS Output CameraLink Data D0 16 O P_XD1 Positive LVDS Output CameraLink Data D1 17 O...

Страница 108: ...A Pinouts 108 of 109 MAN064 02 2020 V1 1...

Страница 109: ...Revision History Revision Date Changes 1 0 September 2014 First version 1 1 February 2020 Chapter CE Compliance updated chapter Precautions added new camera image inserted MAN064 02 2020 V1 1 109 of 1...

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