Digital X-Ray

Digital X-ray machines utilize the combination of digital image processing and X-radiation technologies to generate radiographs. They are equipped with X-ray detectors which replace traditional plastic films to produce digitalized images. Compared with the legacy equipments, digital X-ray machines realize a faster imaging process with better quality, and more importantly, reduce radiation dose that is required for imaging.


Digital X-ray machines commonly use direct or indirect-conversion-based FPDs (Flat Panel Detectors) to detect X rays. A direct-conversion-based FPD, which converts received X rays into electric signals directly, is made up of an amorphous selenium layer and a TFT array. While an indirect-conversion-based FPD is built with an amorphous silicon layer, a photodiode array and a TFT array to convert X rays into visible light first with an amorphous silicon layer, and then convert into electric signals with a photodiode array.

A processor is used to control bias voltage imposed on TFT array, and also transmit the charge stored in TFT to a signal acquisition circuit according to a specific sequence by multiplexing. The signal acquisition circuit has an analog front end to convert the charge into voltage and amplify the voltage which represents power level of X-ray. The amplified signal is converted to digital signal by an A/D converter, and then processed by a DSP to create images. These images could be displayed on screen, printed or transmitted to a remote terminal for medical diagnosis.

With the introduction of new materials to FPDs and the development of digital image processing technology, digital X-ray machines with higher resolution and faster and more accurate image reconstruction are set to replace traditional X-ray devices.


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DSP with high performance used to implement image processing
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FPGA with high performance used to implement image processing
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High performance MCU/MPU with multiple I/Os is required
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High resolution, high SNR ADC is required
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High resolution, DAC is required
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Low noise, high precise amplifier is required
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It is used to implement high-speed serial communications with the image processing unit
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Touch Screen Controller
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Power management
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Voltage reference
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ManufacturerProduct TypeAN TitleAN NumberPart NumberURL
ANALOG DEVICESADCUnderstanding PulSAR ADC Support CircuitryAN-931Click here
ANALOG DEVICESADCDesigning an ADC Transformer-Coupled Front EndAN-935Click here
ANALOG DEVICESADCSampled Systems and the Effects of Clock Phase Noise and JitterAN-756Click here
ANALOG DEVICESAmpActive Filter Evaluation Board for Low Distortion Pinout Op AmpsAN-0993Click here
ANALOG DEVICESAmpFast Rail-to-Rail Operational Amplifiers Ease Design Constraints in Low Voltage High Speed SystemsAN-417Click here
ANALOG DEVICESDACDriving a Center-Tapped Transformer with a Balanced Current-Output DACAN-912Click here
ANALOG DEVICESDACUnderstanding Pin Compatibility in the TxDAC ® Line of High Speed D/A ConvertersAN-595Click here
ANALOG DEVICESDACCMOS Multiplying DACs and Op Amps Combine to Build Programmable Gain AmplifierAN-320AClick here
ANALOG DEVICES DSPConnecting Blackfin® Processors to the AD7656 SAR ADCEE-321BlackfinClick here
ANALOG DEVICES DSPHardware Design Checklist for the Blackfin® ProcessorsEE-281BlackfinClick here
ANALOG DEVICES DSPUsing the NAND Flash Controller on Blackfin® ProcessorsEE-344BlackfinClick here
ANALOG DEVICES DSPChanging the PHY in the Ethernet Driver for Blackfin® ProcessorsEE-315BlackfinClick here
ANALOG DEVICES DSPUART Enhancements on ADSP-BF54x Blackfin® ProcessorsEE-331ADSP-BF54xClick here
ANALOG DEVICES DSPPower Mode Transition Times of Blackfin® ProcessorsEE-309BlackfinClick here
NXP DSPPorting and Optimizing DSP56800 Applications to DSP56800EAN2095/DDSP56800Click here
NXP DSPSoftware Compatibility Considerations for HCS12, HC16 and 56800/E DevicesAN1983DSP56800Click here
NXP DSPSynchronizing the On-Chip Analog-to-Digital Converter on 56F80x DevicesAN1933DSP56F80xClick here
NXP DSPProgramming On-Chip Flash Memories of 56F80x Devices Using the JTAG/OnCE InterfaceAN1935DSP56F80xClick here
NXP DSPDSP56800 Hardware Interface TechniquesAN19820/DDSP56800Click here
NXP DSPUsing Program Memory As Data MemoryAN1952DSP56800Click here
NXP MCU/MPUi.MX51 Power-Up SequenceAN4053i.MX51Click here
TEXAS INSTRUMENTSADCConnecting ADS8410/13 With Long CableSLAA284ADS8410/13Click here
TEXAS INSTRUMENTSADCInterfacing the ADS8401/ADS8411 to TMS320C6713 DSPSLAA212ADS8401/ADS8411Click here
TEXAS INSTRUMENTSADCHigh Speed Data ConversionSBAA045Click here
TEXAS INSTRUMENTSADCUsing ADS8411 in a Multiplexed Analog Input ApplicationSLAA285ADS8411Click here
TEXAS INSTRUMENTSAmpSingle-Supply Operation of operational AmplifiersSBOA059Click here
TEXAS INSTRUMENTSAmpCompensate Transimpedance Amplifiers IntuitivelySBOA055AClick here
TEXAS INSTRUMENTSAmpDigitally Programmable, Time-Continuous Active FilterSBFA005Click here
TEXAS INSTRUMENTSAmpFully differential amplifiers applications: Line termination, driving high-speed ADCs, and differential transmission linesSLYT143Click here
TEXAS INSTRUMENTSDSPTMS320C6455/C6454 Power Consumption SummarySPRAAE8BTMS320C64xxClick here
TEXAS INSTRUMENTSDSPTMS320C6455 Design Guide and Comparisons to TMS320TC6416TSPRAA89ATMS320C64xxClick here
TEXAS INSTRUMENTSDSPTMS320C645x DSP 64-Bit Timer User’s GuideSPRU968TMS320C645xClick here
TEXAS INSTRUMENTSDSPTMS320C6472 5-V Input Power Design, Integrated FET DC/DC Converters and Controllers (8x C6472)SLVA391TMS320C6472Click here
TEXAS INSTRUMENTSDSPTMS320C6472/TMS320TCI6486 Hardware Design GuideSPRAAQ4BTMS320C6471Click here
TEXAS INSTRUMENTSDSPTMS320C6472/TMS320TCI6486 DSP Shared-Memory ControllerSPRUEG5DTMS320C6472/TMS320TCI6486Click here
TEXAS INSTRUMENTSDSPTMS320C6472/TMS320TCI6486 DSP Power/Sleep ControllerSPRUEG3BTMS320C6472/TMS320TCI6486Click here
TEXAS INSTRUMENTSDSPHow to Approach Inter-Core Communication on TMS320C6474SPRAB25TMS320C6474Click here
TEXAS INSTRUMENTSDSPTMS320C6474 DDR2 Implementation GuidelinesSPRAAW8ATMS320C6474Click here
TEXAS INSTRUMENTSDSPHardware Design Guidelines for TMS320F28xx and TMS320F28xxx DSCsSPRAAS1BTMS320F28xxClick here
TEXAS INSTRUMENTSDSPRecommended Power Solutions for TMS320x2810/1/2 DSPsSLVA204TMS320x2810Click here
TEXAS INSTRUMENTSMCU/MPUOMAP3530 Power Consumption SummarySPRAB98OMAP3530Click here
ManufacturerProduct TypeWhite Paper TitleURL
ALTERAFPGAFPGA Co-Processing Solutions for High-Performance Signal Processing ApplicationsClick here
ALTERAFPGAMedical Imaging Implementation Using FPGAsClick here
TEXAS INSTRUMENTSDSPMulticore processors bring innovation to medical imagingClick here
TEXAS INSTRUMENTSDSPSee the difference: DSPs in medical imagingClick here
TEXAS INSTRUMENTSDSPHD Video Encoding with DSP and FPGA PartitioningClick here
TEXAS INSTRUMENTSDSPPicture it: TI DSPs in medical imagingClick here
TEXAS INSTRUMENTSDSPEmbedded processors for medical imagingClick here
TEXAS INSTRUMENTSDSPLow power consumption and a competitive price tag make the six-core TMS320C6472 ideal for high-performance applicationsClick here
TEXAS INSTRUMENTSDSPEnabling Greener Embedded Control Systems with Floating-Point DSCsClick here
TEXAS INSTRUMENTSMPUIntroduction to Graphics Software Development for OMAP™ 2/3Click here
TEXAS INSTRUMENTSMPUSmartReflex™ Power and Performance Management Technologies: reduced power consumption, optimized performanceClick here
TEXAS INSTRUMENTSMPUPower-Management Techniques for OMAP35x Applications ProcessorsClick here
ManufacturerProduct TypeEvaluation Kits TitleEVKs Part NumberPart NumberURL
ANALOG DEVICES DSPBlackfin® Audio EZ-Extender® ManualADZS-USBLAN-EZEXT BlackfinClick here
TEXAS INSTRUMENTSDSPTMS320F2812 eZdsp™ DSP Starter Kit (DSK)TMS320F2812TMS320F2812Click here
TEXAS INSTRUMENTSDSPZoom™ OMAP35x™ Development KitTMDSMEVM3530-L OMAP3530Click here
TEXAS INSTRUMENTSDACDAC5672/62/52 14-Bit, 12Bit and 10 Bit Dual Channel DAC EVMDAC5652EVMDAC5652Click here
TEXAS INSTRUMENTSDACDAC7554 Evaluation Module User's GuideDAC7554EVMDAC7554Click here
ManufacturerProduct TypeTraining TitlePart NumberURL
ALTERAFPGACyclone III FPGA Overview Part1Cyclone IIIClick here
ALTERAFPGACyclone III FPGA Overview Part2Cyclone IIIClick here
TEXAS INSTRUMENTSProcessorIntro to Power Estimation Tool for AM35x Sitara and OMAP35xOMAP35xClick here
TEXAS INSTRUMENTSProcessorIntroduction to Codec EngineClick here
TEXAS INSTRUMENTSDSPDifferences and enhancements from C6455 to the new C6474C6455Click here
TEXAS INSTRUMENTSProcessorAchieving 720p encode/decode performance on OMAP3OMAP3Click here