An approach of exposure dose reduction of cone-beam computed tomography in an image guided patient positioning system by using various noise suppression filters.
Hidemi KamezawaKatsutoshi ShiriedaHidetaka ArimuraNoboru KamedaMasafumi OhkiPublished in: SCIS&ISIS (2014)
Keyphrases
- noise suppression
- radiation therapy
- image guided
- denoising algorithm
- treatment planning
- denoising
- image guidance
- lung cancer patients
- median filter
- impulsive noise
- prostate cancer
- image denoising
- filtering algorithm
- noise removal
- intraoperative
- gaussian noise
- noise level
- transform domain
- wavelet coefficients
- medical imaging
- noisy images
- noise reduction
- noise model
- gaussian filter
- imaging modalities
- ct images
- wavelet domain
- lung cancer
- natural images
- impulse noise
- multiresolution
- computer assisted
- image enhancement
- peak signal to noise ratio
- computer aided
- frequency domain
- computer vision
- medical images
- partial differential equations
- image processing