Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Method and system for human vision model guided medical image quality assessment










Image Number 2 for United States Patent #8086007.

A method and system for image quality assessment is disclosed. The image quality assessment method is a no-reference method for objectively assessing the quality of medical images. This method is guided by the human vision model in order to accurately reflect human perception. A region of interest (ROI) of medical image is divided into non-overlapping blocks of equal size. Each of the blocks is categorized as a smooth block, a texture block, or an edge block. A perceptual sharpness measure, which is weighted by local contrast, is calculated for each of the edge blocks. A perceptual noise level measure, which is weighted by background luminance, is calculated for each of the smooth blocks. A sharpness quality index is determined based on the perceptual sharpness measures of all of the edge blocks, and a noise level quality index is determined based on the perceptual noise level measures of all of the smooth blocks. An overall image quality index can be determined by using task specific machine learning of samples of annotated images. The image quality assessment method can be used in applications, such as video/image compression and storage in healthcare and homeland security, and band-width limited wireless communication.








 
 
  Recently Added Patents
Ink composition, ink for inkjet recording and ink set using the ink
Image processing apparatus and method having defective pixel detection and correction ability
High porosity ceramic honeycomb article containing rare earth oxide and method of manufacturing same
Coding circuitry for difference-based data transformation
Projection-type video-image display apparatus
Electronic component, a semiconductor wafer and a method for producing an electronic component
Motor with power-generation coil module
  Randomly Featured Patents
Tack labels and plastic containers with such tack labels
Furnace controller useable, without modification, with either a single or two stage thermostat
Process for the desulphurization of feed streams
Anti-skid tire guard
Method of making a sawblade tooth form
Multi-step epitaxial process for depositing Si/SiGe
VLSI clocking system using both overlapping and non-overlapping clocks
Method for determining temporal and amplitude threshold values of gates during ultrasound testing of spot welding joints
Frequency control circuits such as for use in modulation measurement
Variable tuned exhaust system