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IMPERX 

 

 
 
 
 
 
 
 
 
 
 
 
 
 

 

 

Cheetah 3G-SDI Camera 

 

User Guide 

 

with 

SMPTE

®

 output 

 

The Imperx Cheetah 3G-SDI cameras provides broadcast quality video imaging with 
high sensitivity in a compact and ruggedized design. 

The camera’

s Sony Pregius CMOS 

image sensor delivers 1920 x 1080 resolution at up to 60 progressive frames per 
second. It provides the superior motion capture needed in a wide range of 
applications such as industrial imaging, surveillance, metrology, and medical and 
scientific imaging. The 3G-SDI cameras are easy to configure and are SMPTE 292M 
and 424M compliant.  

Document Version 1.1 

 

Summary of Contents for IMX-174LLJ-C

Page 1: ...ign The camera s Sony Pregius CMOS image sensor delivers 1920 x 1080 resolution at up to 60 progressive frames per second It provides the superior motion capture needed in a wide range of applications...

Page 2: ...uding flat panel inspection biometrics aerial mapping surveillance traffic management semiconductors and electronics scientific medical Imaging printing homeland security space exploration and other i...

Page 3: ...its use IMPERX reserves the right to make changes to this information without notice Redistribution of this manual in whole or in part by any means is prohibited without obtaining prior permission fr...

Page 4: ...nstalling the Software 18 Installation 18 3 3 Starting CamConfig 22 3 4 Main Window 23 3 4 1 Menu 23 3 4 2 View 26 3 4 3 Help 26 3 5 Gain Exposure Control 26 3 5 1 Exposure Control 27 3 5 2 Gain Contr...

Page 5: ...l 41 5 Image Sensor Technology 42 5 1 General Information 42 6 Register based Commands 44 6 1 Configuration Memory 44 6 1 1 Camera Serial Protocol 44 Appendix A Camera Registers 48 Gain Exposure and A...

Page 6: ...DI Camera November 16 2017 Page 6 of 53 Rev 1 1 REVISION HISTORY Revision Date Reviser Comments 1 0 10 4 2017 R Johnston Initial release approval 1 1 11 16 17 R Johnston Added C1920 camera and updated...

Page 7: ...d field upgradeable It features a built in image processing engine low power consumption low noise and high dynamic range 12 F Stops with frame rates up to 60 frames per second The camera provides pro...

Page 8: ...511 levels 0 511 levels Auto gain exposure Yes with optional AEC AGC within an AOI Yes with optional AEC AGC within an AOI LUT 4 user LUTs 8 gamma LUTs 8 black gamma LUTs 4 user LUTs 8 gamma LUTs 8 bl...

Page 9: ...control and monitor the camera s resources internal registers and parameter flash using a simple register based command protocol via the camera s RS 232 serial interface The interface is bidirectiona...

Page 10: ...ctors available in varying lengths The cable has a miniature quick connect push pull type coupling mechanism on the camera end and a BNC connector with quarter turn coupling on the host computer end C...

Page 11: ...RS 485 Return 7 OUT 1 TTL OUT 1 Strobe 1 Output 8 TLS IN 1 Tri Level Sync Tri Level Sync Genlock Input 9 GPIO_2A General Purpose I O 2A Reserved for P IRIS B_Enable 10 GP IN and Out 1 Return Ground Re...

Page 12: ...f the condition is still present contact the factory for support LED OFF Power not present Possible power supply failure or faulty external AC adapter Re power camera and load factory settings If the...

Page 13: ...sold separately terminates in a female Hirose type miniature locking receptacle HR10A 10P 12S 73 It has a DB9 connector for serial RS 232 485 interface and a small BNC pig tail cable providing extern...

Page 14: ...eturn are used to connect to an external input on the outside source For IN1 the signal level voltage difference between the inputs Signal and Return MUST NOT exceed 1 2Vpp Figure 4 IN1 Tri Level Sync...

Page 15: ...machined aluminum For maximum flexibility the camera has eight M3X0 5mm mounting holes located towards the front and the back An additional plate with 20 UNC tripod mount and hardware ship with each...

Page 16: ...CHEETAH 3G SDI Camera November 16 2017 Page 16 of 53 Rev 1 1 Camera back view Figure 9 3G SDI camera back view Camera front lens view Figure 10 3G SDI camera front view...

Page 17: ...ness or less inserted under the front lens bezel 1 Avoid direct exposure to a high intensity light source such as a laser beam This may damage the camera optical sensor 2 Avoid foreign particles on th...

Page 18: ...Installing the Software Use the installation wizard to install the Cheetah Pregius CamConfig software supplied with your 3G SDI camera If a previous version of the Cheetah Pregius GUI software is ins...

Page 19: ...Double click the executable file Cheetah_Pregius_1_0_5_xxxx exe on your desktop The Welcome Setup screen opens Note the recommendation to close other applications and then click Next 4 When the Licens...

Page 20: ...Config component is selected and then click Next 6 On the Choose Install Location screen accept the default destination folder or click Browse and select a different location and then click Install Th...

Page 21: ...creen select the check box to register your software and then click Next When the Imperx website appears complete the Subscriber Registration and click Submit 8 On the Completing Cheetah Pregius CamCo...

Page 22: ...e on the Select Port screen You can repeat the discovery procedure by clicking Rescan Ports If you do not see the camera as one of the selectable ports make sure the RS232 connector is plugged into th...

Page 23: ...next to the camera name turns red if the connection between the camera and host computer is lost Figure 12 GUI interface The window also displays real time information about the camera s current condi...

Page 24: ...is available only for factory technicians Boot From This enables loading the camera registers from the Factory configuration from User Space 1 or from User Space 2 upon powering up Terminal The Comman...

Page 25: ...ble error checking by selecting the Disable Error Checking check box Soft Reset Resets all current camera settings to default values according to the current Boot From selection Connection Use the Con...

Page 26: ...in debug mode for test purposes and troubleshooting Save Dump Camera Regs This is for saving camera registers to a file About This provides information about the camera s firmware build revision image...

Page 27: ...the exposure time on any of the tabs Figure 17 If you enable Internal the Exposure Time slider shows you the minimum and maximum exposure times available 1 Click Off to disable setting manual exposure...

Page 28: ...nal amplification from the camera sensor You can set the gain value in decibels ranging from 0 0 to 48 0 dB Settings in the 0 dB to 24 dB range operate in the analog domain Settings in the 24 1 dB to...

Page 29: ...es in the AOI luminance as determined by the firmware cause changes in the exposure gain and applies them to the entire image In other words if the AOI luminance deviates from the target limit the exp...

Page 30: ...anticipating motion within the scene you can specify the maximum exposure to be 1 ms to avoid motion blur Try to set the minimum exposure value as high as possible to help prevent oscillations in the...

Page 31: ...The I O control screen lets you enable genlock mode when connected to an external tri level sync generator The format resolution scan rate and MHz settings you select for the genlock device automatica...

Page 32: ...set the strobe position equal to the frame period minus the exposure time If the strobe duration is set to the exposure time then the strobe signal will define the exposure window Refer to the followi...

Page 33: ...of the image Applying both black gamma and normal gamma enables compressing the mid range intensities while stretching the detail in the brightest and darkest regions of the image The drop down menu p...

Page 34: ...e Point Correction This performs a single knee point image enhancement Click and drag the knee point to create the desired transfer function Two Point Correction This performs a two knee point image e...

Page 35: ...op down and select a preset 2 If selecting Auto you can change the auto tracking speed by clicking the AWB Tracking Speed drop down and selecting 1x 2x 3x 4x or 5x Tracking speed settings control the...

Page 36: ...the factory The maps identify the coordinates of defective and hot pixels The camera uses these maps to correct the pixels during output Mirror Select Horizontal to flip the image horizontally Select...

Page 37: ...ates a black screen Gray Image Generates a gray screen White Image Generates a white screen H Ramp Generates a horizontal intensity ramp decreasing the output code value by one count on each column mo...

Page 38: ...es Selecting the X Y Lines check box superimposes a pair of horizontal and vertical lines on the image You can enable the lines in horizontal direction vertical direction or both directions You can po...

Page 39: ...settings the camera adjusts the exposure to maintain the target luminance calculated only within the AOI You can select the target luminance to be either the average luminance or peak luminance within...

Page 40: ...es A second opto isolated strobe is available An optional P Iris control can replace the second opto isolated strobe A custom interface cable to support the second strobe and firmware update are requi...

Page 41: ...4 Repeat input output The Image enhancement tab also provides the ability to apply one point or two point knee corrections to the image 4 7 Color Control The camera provides white balance options for...

Page 42: ...exposure time it shifts the charges from each pixel photodiode onto a storage register within the pixel reads out one row at a time and then digitizes each pixel to 12 bits Frame time or read out time...

Page 43: ...CHEETAH 3G SDI Camera November 16 2017 Page 43 of 53 Rev 1 1 Figure 32 Color relative response to IMX252 sensor Figure 33 Color relative response to IMX174 sensor...

Page 44: ...and Flash based The camera allows you to save the contents of the workspace to either one of these memory spaces and allows you to load these contents into the workspace In this way you can easily sav...

Page 45: ...ength 6 1 1 1 Write Operation To write to any given camera register send a sequence of 7 bytes to the camera If there is no error the camera returns a one byte acknowledge for the write command Ack Wr...

Page 46: ...Ack and four bytes of data DD DD DD DD During read operation the camera does not return an error or Nac The only exception is the case of invalid command shown in the Normal read cycle diagram below...

Page 47: ...load value 0x11223344 Register data 0x06 11 22 33 44 6 1 1 3 Error Code Description To manage camera reliability use the following not acknowledge error codes x00 No error x01 Invalid command An inval...

Page 48: ...rol register 0x0548 sets the camera exposure Others reserved Data 31 2 N A RW Determines mode 0x0548 Internal Exposure Timer Data 10 0 value exposure increments Exposure increment 0006 H max exp 464H...

Page 49: ...B 0 1 dB per step 0x0008 CMOS_Offset Data 8 0 value analog offset Data 31 9 N A RW Offset Value 0x0000 to 0x01FF 0x0160 AGC_Gain Maximum Limit Data 8 0 value max AGC gain limit Data 31 9 N A RW 0 to 4...

Page 50: ...ncrements Max exposure is 6 increments Min exposure is 1124 increments See Internal Exposure Timer Register 0x0548 description Data 31 11 N A RW Image Control Address Register Name Data Type Usage 0x0...

Page 51: ...ble Data 0 0 DPC disable 1 DPC enable Data 31 1 N A RW Enables Defective Pixel Correction 0x0124 HPC_Enable Data 0 0 HPC disable 1 HPC enable Data 31 1 N A RW Enables Hot Pixel Correction 0x0610 SMPTE...

Page 52: ...ine Row position Range 1 to 1080 0x013C Superimpose Horizontal Row Position 2 Data 10 0 value H2 line position Data 31 11 N A RW H2 Line row position Range 1 to 1080 0x0140 Superimpose_X Vertical Colu...

Page 53: ...55C Strobe One Enable Data 1 0 00 disable Strobe 1 01 enable Strobe 1 each frame Data 31 2 N A RW Standard 0x0560 Strobe Two Enable Data 1 0 00 disable Strobe 2 01 Enable Strobe 2 each frame Data 31 2...

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