background image

Image Acquisition 

With the color camera the value distribution is displayed separately for each 
color channel in three lines (red, green and blue). 

If an image is overexposed, at least one curve on the histogram is cut off at 
the right-hand edge of the display area, where it forms a maximum. Reduce 
the exposure time or insert gray density filters into the microscope’s beam 
path to reduce the amount of light. It is also possible to reduce the lamp 
voltage of the microscope illumination. However, this changes the basic color 
of the illumination (color temperature) and requires a new white balance. 

If an image is underexposed, the histogram does not reach the right-hand 
edge of the display area. As a result optimum use is not made of the camera’s 
resolvable gray value range. You should therefore increase the exposure time 
or the amount of light in the microscope. 

Log

: By clicking on this button it is possible to influence the histogram display. 

You can toggle between a linear scaling and a logarithmic display of the 
signals represented in the histogram. 

The logarithmic display makes it possible to view small amplitudes and high 
peaks at the same time in a single overview. Otherwise, because of the 
automatic scaling of the display, small signal values are often not visible in the 
diagram. 

Skip

: This function can be used to influence the automatic scaling of the 

histogram. If an image contains an extremely bright glare or extremely dark 
features the result will be overexposure or underexposure of the image in 
these areas. All of these pixels possess the maximum / minimum numerical 
value which can be displayed (e.g. in an 8-bit image 255 for overexposure or 
0 for underexposure). Consequently, for the gray value 255 the histogram has 
to display an extremely high number of pixels with the same value. As the 
scaling of the histogram curves is automatically adjusted to this high value, 
smaller values can no longer be resolved in the display. 

By using the 

Skip

 function the maximum values at the upper and lower end 

of the histogram are omitted during the scaling of the display. 

48 

M 60-3-0014 e / printed 12.2008 

Содержание Axiocam MR

Страница 1: ...jo f H o J NOKOMMU Number of this manual M 60 3 0014 e Printed 12 2008...

Страница 2: ...the implementation of which in any individual case may not be appropriate in the form described here In cases of doubt we recommend the User to consult Carl Zeiss This manual is protected by copyrigh...

Страница 3: ...responsible for the validation of the Software for the end user s dedicated intend of use considering all requirements of law and standards e g 21 CFR part 11 FDA MDD etc If necessary the end user ha...

Страница 4: ...s product We have implemented a take back and recycling process that ensures that proper recycling is carried out in accordance with the aforementioned EU directives Please contact your Carl Zeiss sal...

Страница 5: ...a on a notebook using the FireWire PCcard CardBus interface card 12 Installing the PCcard CardBus interface card on the notebook 12 Connecting the camera to the notebook 14 Operating the camera on a n...

Страница 6: ...lor saturation 47 Histogram 47 2 4 Frame Property Page 49 Camera mode 49 Resolution 50 Binning 52 Size of the resulting files 52 Frame 53 2 5 General Property Page 54 Digital gain 55 Image orientation...

Страница 7: ...ty 74 Configurable toolbars for operating the camera 74 3 Trouble Shooting 75 3 1 Software 75 3 2 Image Quality 76 4 Technical Data 77 4 1 AxioCam MRc color version 77 4 2 AxioCam MRm monochrome versi...

Страница 8: ...puter is switched on Use only high quality and undamaged FireWire cables If you cannot avoid hot plugging please take the following information into account Sequence for cable insertion When you conne...

Страница 9: ...s used for both the color camera and the black white camera A distinction is only made where this is necessary for technical reasons NKN p o Please read this chapter carefully and observe the regulati...

Страница 10: ...he safety reliability and performance of the system if the following safety regulations are closely observed The electrical installations of the room where the system is to be set up must conform to I...

Страница 11: ...t mechanical impact External damage may affect the operation of inner components Keep chemicals and fluids away from the camera To avoid the risk of fire do not use near inflammable liquids or gases M...

Страница 12: ...liability for consequential damage resulting from insufficient data protection NKO p o The appropriate system requirements relating to hard and software equipment can be found in the file Installation...

Страница 13: ...with FireWire PCcard CardBus Interface order number 000000 0452 037 PC with FireWire interface onboard 6 pin to 6 pin digital FireWire cable included in AxioCam MR package additional 6 pin to 6 pin di...

Страница 14: ...card connection of the camera to the PC s integrated onboard FireWire interface In both cases the AxioCam MR is connected to the PC using the FireWire cable 6 pin to 6 pin supplied with the camera Po...

Страница 15: ...face card order number 000000 0452 036 also has integrated USB connections FireWire PCI bus interface card To ensure that power is supplied to the AxioCam MR no other devices should be connected to th...

Страница 16: ...tation from your PC s manufacturer m Lay the data cable carefully between the camera and the PC Make sure that the cable is a safe distance from hot light sources on the microscope to prevent it being...

Страница 17: ...m c t m Lay the data cable carefully between the camera and the PC Make sure that the cable is a safe distance from hot light sources on the microscope to prevent it being damaged by heat To connect t...

Страница 18: ...l Depending on your notebook s specifications you can choose between two forms of connection connection of the camera to the FireWire PCcard CardBus interface card connection of the camera to the note...

Страница 19: ...and notebook documentation Only the basic principles of interface card installation are described in this manual FireWire PCcard CardBus interface card Switch off your notebook and all connected peri...

Страница 20: ...devices A FireWire hub should therefore be used to supply power to operate the AxioCam MR on a notebook The following components are required FireWire hub with power supply order number 000000 0452 37...

Страница 21: ...ta cable carefully between the camera and the notebook Make sure that the cable is a safe distance from hot light sources on the microscope to prevent it being damaged by heat To ensure the efficient...

Страница 22: ...e camera is also switched off When the power supply of the FireWire hub is connected the red LED of the FireWire hub lights up The green LED of the FireWire hub lights up as soon as a FireWire device...

Страница 23: ...the surface of the infrared barrier filter or CCD sensor with your fingers If you remove the camera from the microscope make sure you immediately cover the C mount opening with the dust cap provided...

Страница 24: ...on of your computer s FireWire interface fits the needs of all connected devices Check the following connections The AxioCam MR is mounted onto the microscope and is receiving light The AxioCam MR is...

Страница 25: ...talled are contained in the enclosed installation program and are standard Microsoft products or updates For some of the Microsoft update components the installation instructions are often only availa...

Страница 26: ...perating system In addition to installing the AxioCam MR driver to carry out full installation of the camera you also need to check and if necessary update the camera s firmware These tasks are perfor...

Страница 27: ...Installation Select the option Install from a list or specific location Advanced Click on Next Select the option Search removable media floppy DVD ROM Click Next AxioCam MR Installation Reference 21...

Страница 28: ...is dialog window is displayed Click on Continue Anyway The last dialog window of the hardware wizard is displayed Click Finish to close the hardware wizard To complete the installation follow the step...

Страница 29: ...during the installation procedure If you have fitted a FireWire PCI bus or a PCcard CardBus interface card into your computer you first need to install these with the help of the documentation enclose...

Страница 30: ...lick OK Follow the instructions of the setup program until the window is displayed where you can customize your setup In this window you can also choose to read the ReadMe files It is recommended that...

Страница 31: ...camera s firmware and if necessary starts updating the firmware This procedure may take a few minutes While the firmware is being updated under no circumstances must the power supply or the data conne...

Страница 32: ...art the systems Device Manager to check the installation Click Start Control Panel Double click the System icon The System Properties dialog will be displayed Select the property page Hardware and her...

Страница 33: ...ceed as follows Please make sure that during all the steps described below the DVD ROM containing the AxioCam MR driver remains inserted in the DVD ROM drive of your computer Start the systems Device...

Страница 34: ...gram see section Installing the camera driver using the setup program After the camera driver has been installed and depending on the operating system you are using your computer has been restarted th...

Страница 35: ...on of the FireWire cable this means that the AxioCam MR s firmware is not functioning properly This error can occur for example if the data transmission or power supply to the camera has been cut off...

Страница 36: ...e the camera s electronics Update the firmware of the AxioCam MR by running the installation program Here follow the description in the section Installing the camera driver using the setup program If...

Страница 37: ...can be mounted onto microscopes with standard TV adapters with C mount connections Carl Zeiss supplies the camera complete with a pre mounted infrared barrier filter which offers the optical advantage...

Страница 38: ...r camera is suitable for all situations where stained or naturally colored samples need to be acquired with very high levels of quality The black white version of the camera has been optimized in part...

Страница 39: ...ia the toolbar Open the corresponding menu by clicking on The text below describes how to achieve your first image in AxioVision with just a few clicks of the mouse The Standard workflow is the easies...

Страница 40: ...the active camera Show Properties adapts the image display using a characteristic curve and shows the parameters of the image Scale bar inserts a scale bar Annotations inserts a caption and scale bar...

Страница 41: ...t to acquire In the footer you can select a suitable scaling for the objective you are using from the List of available scalings Clicking on this icon overexposed too bright areas will be displayed in...

Страница 42: ...see the settings for the display of the image like Brightness Contrast and Gamma Settings made here are passed on the acquired image Note Only the display is adapted the camera data remain unchanged 3...

Страница 43: ...measurement before the acquisition of each image Auto Live adjusts the exposure time continuously in the live image If you are using a color camera you need to perform a white balance for the image If...

Страница 44: ...to increase or decrease the color intensity of the acquired images Enter further settings for the selected camera on the Adjust Frame and General property pages Click on the camera icon to acquire an...

Страница 45: ...f around 0 45 To find the optimum setting for contrast and brightness click on Min Max To undo all your changes click on Linear You can use this icon to insert a scale bar into your image The appropri...

Страница 46: ...dow Draw Annotation s a field for Settings for selected items as well as for Font are available If Display tag name is activated you can use the icon in the drop down list box Tag The dialog window Se...

Страница 47: ...s Editor in the Tool menu and load it again automatically in the future This allows you for example to acquire particular samples under the same conditions every time To allow correct scalings to be s...

Страница 48: ...Image Acquisition OKP m m This property page contains a summary of the most important camera settings which are constantly used during operation 42 M 60 3 0014 e printed 12 2008...

Страница 49: ...bsequent images It can be changed at any time by moving the slider or by entering a new exposure time manually This measurement function uses all the image information from the camera sensor for the e...

Страница 50: ...cquisition Setting a correction factor of 120 extends the effective exposure time to 60 ms which ensures that the darker area of the sample is exposed more brightly The brightest area of the image whi...

Страница 51: ...er For this you need to use the pointer to click in the live image on an area of the microscope s specimen which is white neutral and illuminated as evenly as possible The scene must not be overexpose...

Страница 52: ...e completely filled this automatic method can lead to color distortion In this case use the 3200 K standard setting or the manual color adjustment function The color setting is only available for the...

Страница 53: ...s Editor Using the Saturation slider it is possible to increase or decrease the color intensity of the acquired images Setting the slider at a value of 1 achieves the most natural color reproduction r...

Страница 54: ...le between a linear scaling and a logarithmic display of the signals represented in the histogram The logarithmic display makes it possible to view small amplitudes and high peaks at the same time in...

Страница 55: ...or the image acquisition and is splitted in the fields Camera Mode and Frame RGB and B W Two types of AxioCam MR are produced one with a CCD sensor with a color mask on the chip AxioCam MRc and the ot...

Страница 56: ...ected between Binning and Standard The camera has a 2 3 CCD sensor with dimensions of 8 8 mm x 6 6 mm This corresponds to an image diagonal of approx 11 mm To optimize the size of the camera s field o...

Страница 57: ...With the AxioCam MRm the omission of the color filter mask on the CCD sensor and the associated generation of monochrome images offers the following advantages The acquisition speed in scanning modes...

Страница 58: ...ing out of 1400 x1000 pixels 700 x 500 pixels remain p The size of the resulting files depends on the choice of resolution and gray value scaling The following table gives an overview Image size 8 bit...

Страница 59: ...side it and keeping the button pressed as you change its position Center By clicking on Center you can automatically center the selected frame This can be useful as interesting parts of the sample are...

Страница 60: ...Image Acquisition OKR d m m On this property page you enter the basic settings for the camera 54 M 60 3 0014 e printed 12 2008...

Страница 61: ...data by a corresponding factor The maximum numerical pixel value generated is always limited to the maximum value of the analog digital converter you are using 12 bits per pixel per color channel in t...

Страница 62: ...or with the cap provided Calibration takes approx 20 seconds At the end of this period it will continue to be available even if the software is restarted Under certain circumstances it may be necessar...

Страница 63: ...sical effects For all AxioCam models it is possible to acquire a shading reference image and apply this automatically each time an image is acquired On the camera property page General you will find t...

Страница 64: ...t image of a specimen with quality that is as high as possible Check the quality of the K hler setting for each objective with which you want to generate automatic shading correction Now move the samp...

Страница 65: ...l managed separately In the Multidimensional Acquisition function a function for fluorescence channel specific shading correction is offered under Extended parameters on the C Channel property page Ac...

Страница 66: ...out shading correction via an image processing function On the Processing menu Adjust Shading Correction you will find a function that allows you to perform targeted subsequent processing This functi...

Страница 67: ...tent microscopic contrast technique and structure sizes Any form of image processing also potentially increases the noise This means that this technique is not recommended for acquisition situations w...

Страница 68: ...e too large halo effects may occur at the edges Radius and Strength interact A smaller radius allows a greater strength and vice versa At a resolution of 1388 x 1040 pixels value 2 is an appropriate s...

Страница 69: ...omalies at both ends of the histogram The following parameters are only available in the image processing function Unsharp Masking in the AxioVision menu Processing Sharpening as additional parameters...

Страница 70: ...a tag in the AxioVision image format The image tags documented in the image properties and can be inserted as annotations in the image The 9 parameters of the implemented method Unsharp Masking are in...

Страница 71: ...of the device you have connected Note Simultaneous control of the external Uniblitz shutter by AxioVision via a serial interface and by the shutter control of the camera is resulting in the following...

Страница 72: ...on of the AxioCam With color cameras an infrared barrier filter blocks light above approx 710 nm This filter has been permanently installed into the color cameras as it is essential in order to acquir...

Страница 73: ...reset the following settings of the active camera If you click on the Reset button the following settings of the active camera are reset Camera parameters for all cameras as available Exposure time 20...

Страница 74: ...s White balance No changes supplied in the driver Overexposure Off Zoom Fit into window Ruler No changes Cross Bar No changes Live Staus bar No changes Close after Snap No changes p There are three sp...

Страница 75: ...as automatic amplification is active However this will not influence the quality of the final image k s Below you will find a detailed description of how best to set up AxioVision to achieve optimum...

Страница 76: ...the Properties dialog window set the gamma characteristic curve in the histogram image on the Display property page Notes This also influences the reproduction of the color saturation For fluorescence...

Страница 77: ...is able to generate 3 x 12 bits per pixel So that intelligent use can be made of this feature the display s characteristic curve can be altered in AxioVision To do this right click in the image acquir...

Страница 78: ...n the image Linear displays on the screen the total possible value range Log displays the histogram in a logarithmic scaling allowing you to effectively evaluate histograms of images with high dynamic...

Страница 79: ...to carry out a balance manually e g fluorescence If the image background in the acquired image is to be displayed with a neutral tint gray a manual white balance is required Click on the White Balanc...

Страница 80: ...rsions of AxioCam MR have been designed to determine linear quantitative measurement data as such data is frequently used for tasks in the field of image analysis Consequently internal gamma compensat...

Страница 81: ...Vista make sure that the camera drivers have been installed with administrator rights No camera image on your screen Check the light setting of the microscope Is the green control light on the camera...

Страница 82: ...ge will show periodic interference Repeat the shot and take care to ensure the conditions remain calm An example of a shaky shot Compare An error free image Fluctuations in illumination If the light s...

Страница 83: ...for time lapse images in AxioVision module Fast Acquisition High Speed Color mode H x V 1388 x 1040 692 x 520 460 x 344 344 x 260 276 x 208 Binning 1 x 1 RGB b w 2 x 2 b w 3 x 3 RGB 4 x 4 b w 5 x 5 RG...

Страница 84: ...nly for Notebook operation required Ambient condition operation 5 35 Celsius max 80 relative humidity no condensation free air circulation required Order number 426508 9901 000 Above frame rates are s...

Страница 85: ...ow 1 middle 2 fast 3 Max frame rate 13 images s 23 images s 32 images s Resolution and frame rates for time lapse images in AxioVision module Fast Acquisition H x V 1388 x 1040 692 x 520 460 x 344 344...

Страница 86: ...PC external power supply only for Notebook operation required Ambient condition operation 5 35 Celsius max 80 relative humidity no condensation free air circulation required Order number 426509 9901...

Страница 87: ...barrier filter is not recommended as color is only defined for visual spectral range The AxioCam MRm black white version is used without infrared barrier filter If necessary an additional infrared ba...

Страница 88: ...tebook 14 15 connecting to the PC 10 11 contents of delivery 6 contrast change 72 control signal 65 a delivery 6 device manager 26 27 digital gain 55 display characteristic curve 69 driver software 19...

Страница 89: ...camera 5 optical system 30 optimum color reproduction 69 overexposure 48 m PCcard interface on the notebook 12 PCI bus interface card 8 practical notes on operation 67 o resetting the firmware 29 res...

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