System and method for DICOM compliant display of ultrasound images in varying ambient light
An ultrasonic imaging system, the technology of ultrasonic images, applied in the field of medical diagnostic imaging systems, can solve problems such as incorrect estimated values, excessive power consumption, shortened battery recharging intervals, etc.
Active Publication Date: 2012-01-25
KONINK PHILIPS ELECTRONICS NV
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Additionally, these estimates are incorrect when ambient light conditions differ from those that existed when the GSDF calibration was attempted, which tends to occur when moving the ultrasound imaging system to a different room
[0006] Another problem encountered with portable monitors for displaying ultrasound images with excessive brightness is excessive power consumption, which manifests itself in shortened battery recharge intervals
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[0014] exist figure 1 An ultrasonic diagnostic imaging system 100 according to one example of the present invention is shown in FIG. The imaging system 100 includes a probe or scan head 110 having an array 112 of transducer elements. Array 112 transmits beams across the image field at different frequencies. The emission of the beams is controlled by transmitter 114 which controls the frequency, phase and timing of the activation of each transducer element of array 112 so that each beam is emitted along the array from a predetermined origin and at a predetermined angle. Echoes returning from along each beam direction are received by elements of array 112 , digitized by analog-to-digital (“A / D”) converter 115 , and coupled to digital beamformer 116 . The digital beamformer 116 delays and sums the echoes from the transducer elements of the array 112 to form a focused sequence of coherent digital echo samples along each scan line or beam direction. The sequence of samples is us...
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An ultrasound imaging system includes an ultrasound probe receiving echo signals from a subject, and a processor converting echo signals received from the probe to echo data corresponding to an ultrasound image. The system also includes a grayscale mapper transforming the echo data received from the processor to a corresponding value of perception data. The grayscale mapper makes this transformation using a DICOM compliant GSDF calibration curve. The perception data is passed to a transform processor, which also receives an ambient light signal from an ambient light sensor. The transform processor converts the perception values to respective digital driving levels based on the ambient light signal and display characteristics of a display device to which the digital driving levels are applied to maintain optimal image display under varying ambient light conditions.
Description
technical field [0001] The present invention relates to medical diagnostic imaging systems, and in particular to ultrasonic diagnostic imaging systems, which ensure that displayed images meet generally acceptable performance standards for displaying medical images despite varying ambient light conditions. Background technique [0002] A number of techniques are commonly employed to obtain images of anatomical structures in the human body. Images are obtained, for example, with x-ray, magnetic resonance imaging ("MRI") and ultrasound techniques. In modern medical imaging systems, images are captured as digital records and stored on media or in network storage servers. These images can be viewed in real time as they are produced, or they can be viewed with a saved digital record. In either case, images can be viewed through a wide variety of displays, such as cathode ray tube ("CRT") displays, plasma displays, light emitting diode ("LED") displays, field emission displays, a...
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IPC IPC(8): A61B5/00
CPCA61B8/461A61B8/565A61B8/56A61B8/00G01S7/52053A61B8/58A61B8/582
Inventor D·拉斯特J·M·鲁斯科兹
Owner KONINK PHILIPS ELECTRONICS NV