摘要:
A system and method for enhancing visualization of clinical conditions comprising receiving imaging data on a subject from an imaging modality, receiving user input on at least one suspected clinical condition of the subject undergoing imaging on the imaging modality, and processing the imaging data in association with a knowledgebase using an optimal image processing algorithm to enhance visualization of the at least one suspected clinical condition in at least one image.
摘要:
A method and system for determining integrity of images is disclosed herein. The method includes determining the integrity of a non-image data of an image file. The method of protecting images comprises: obtaining an image file having both image data and non-image data and generating at least one code based on the non-image data at the time of creation of the image file. The code is incorporated into the image data of the image file in a visually non-detectable format. In an example, a digital watermarking technique is used to incorporate the code into the image data.
摘要:
Systems, methods and apparatus are provided through which in some embodiments a time series is generated from a plurality of X-ray projections of an object that were acquired under limited angular conditions with a flat-panel X-ray detector, and thereafter the plurality of X-ray projections in the time series are displayed in reference to a pivot point.
摘要:
The effects of electromagnetic interference (EMI) on X-ray image data is corrected by characterizing the EMI and processing the image data to subtract the EMI effects from the image data. The X-ray image data, along with offset data, are collected in a conventional manner, affected by EMI if present, and EMI-characterizing data is immediately collected thereafter by disabling rows of a digital detector (FET off). The EMI-characterizing data, then, is not affected by the presence of image data, and can be used to characterize the amplitude and frequency of the EMI. The EMI-characterizing data is assured of being in phase with the collected image and offset data due to its collection in the same image acquisition sequence immediately following the collection of image and offset data. Artifacts due to the presence of EMI are thus eliminated from reconstructed images based upon the corrected data.
摘要:
An image processing system includes a dataset generator within an image controller generating a first derived member of a first dataset from an acquired member of the first dataset. The dataset generator further generates a first derived member of a second dataset from an acquired member of the second dataset. Temporal comparators within the image controller compare the first derived member of the first dataset and the first derived member the second dataset and generate a comparison signal therefrom.
摘要:
Phantoms and discrete spatial and frequency methods for quantitatively measuring the alignment of radiographic imaging systems are described. One embodiment comprises phantoms for use in mechanically aligning radiographic imaging systems. These phantoms comprise: a radio-opaque material capable of holding a well-defined edge that allows quantitative image resolution measurements to be obtained thereof; wherein once the quantitative image resolution measurements are obtained, the spatial frequency response of the radiographic imaging system at a given focal plane can be calculated therefrom, thereby defining the mechanical alignment, resolution, and resolution uniformity of the radiographic imaging system. Systems and methods for mechanically aligning radiographic imaging systems, and methods for obtaining a quantitative measurement of the mechanical alignment, resolution and resolution uniformity of radiographic imaging systems, are also disclosed.