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David R. Bull

6 accepted papers

2017

Inpainting-based error concealment for low-delay video communication

ICASSP 2017accepted

Error concealment (EC) is one of the target applications of inpainting techniques. Some methods combine the estimated lost motion vectors (MVs) with the exemplar-based inpainting technique to recover the lost regions. Due to the erroneous motion vectors that might indicate a moving object as backgro…

Cited by 0SourceScholar
2017

Line detection in speckle images using Radon transform and ℓ1 regularization

ICASSP 2017accepted

Boundaries and lines in medical images are important structures as they can delineate between tissue types, organs, and membranes. Although, a number of image enhancement and segmentation methods have been proposed to detect lines, none of these have considered line artefacts, which are more difficu…

Cited by 0SourceScholar
2016

An adaptive resolution rate control method for intra coding in HEVC

ICASSP 2016accepted

Previous work has shown that spatial resampling can improve rate-distortion performance by providing a higher and more consistent level of video quality at low bitrates. Rate control aims to regulate the video bitrate in accordance to the bit budget. While this is a well studied problem in the singl…

Cited by 0SourceScholar
2016

Improved illumination invariant homomorphic filtering using the dual tree complex wavelet transform

ICASSP 2016accepted

A novel adaptation of the two dimensional Homomorphic filter is introduced using the Dual Tree Complex Wavelet Transform for improved illumination invariant processing. The Homomorphic filter is conventionally implemented within the log-Fourier domain using an isotropic high-pass filter based on the…

Cited by 0SourceScholar