Browsing by Author "KOKARAM, ANIL CHRISTOPHER"
Now showing items 21-40 of 58
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Feature-based object modelling for visual surveillance
BAUGH, GARY; KOKARAM, ANIL CHRISTOPHER (IEEE, 2008) -
A gradient based fast search algorithm for warping motion compensation schemes
KOKARAM, ANIL CHRISTOPHER (IEEE, 1997)This paper describes a fast search algorithm for warping motion compensation schemes which is based on a first order approximation of a Taylor series. In comparison to a full search algorithm the technique significantly ... -
Graphics Hardware for Gradient Based Motion Estimation
KOKARAM, ANIL CHRISTOPHER (SPIE, 2004)Motion estimation and compensation is a key component in video procesing. Motion estimation is necessary for high quality compression. It is also a key component in archive video restoration and motion picture post-production. ... -
A HMM Framework for Motion based parsing for video from Observational Psychology
DOYLE, ERIKA; FULLER, RAYMOND G; HARTE, NAOMI; KOKARAM, ANIL CHRISTOPHER (IEEE, 2006)In Psychology it is common to conduct studies involving the observation of humans undertaking some task. The sessions are typically recorded on video and used for subjective visual analysis. The subjective analysis is ... -
Implicit spatial inference with sparse local features
KOKARAM, ANIL CHRISTOPHER; O'REGAN, DEIRDRE (IEEE, 2008) -
An improved error resilience scheme for highly compressed data
KOKARAM, ANIL CHRISTOPHER (IEEE, 2002)The coding of highly compressed data streams involves removing as much redundancy from the stream as possible. However, as redundancy is removed, so is the ability of the decoder to recover from error conditions caused by ... -
Information Retrieval Assisted Object Segmentation In Video.
KOKARAM, ANIL CHRISTOPHER; RING, DANIEL (IEEE, 2008)Accurate object segmentation in video is difficult. The dynamic nature of the medium causes drifts in the feature spaces traditionally used in segmentation of objects in still images. For example, colour distributions, ... -
Inlier modeling for multimedia data analysis
KOKARAM, ANIL CHRISTOPHER (2004)This paper presents a robust method to estimate the unknown standard deviation of a centred normal distribution from a mixture density. This method is applied to different signal processing problems. The first one concerns ... -
Joint Audio Visual Retrieval for Tennis Broadcasts,
KOKARAM, ANIL CHRISTOPHER (IEEE, 2003)In recent years, there has been increasing work in the area of content retrieval for sports. The idea is generally to extract important events or create summaries to allow personalisation of the media stream. While previous ... -
Joint Detection, Interpolation, Motion and Parameter estimation for Image Sequences with Missing Data
KOKARAM, ANIL CHRISTOPHER (IEEE Computer Society Press, 1997)This paper presents methods for detection and reconstruction of `missing' data in image sequences which can be modelled using 3-dimensional autoregressive (3D-AR) models. The interpolation of missing data is important in ... -
Line registration of jittered video
KOKARAM, ANIL CHRISTOPHER (1997)With the imminent widespread availability of digital video broadcasts and the subsequent increase in the demand for broadcast material, image sequence restoration is an increasing source of concern for both archivists and ... -
Line scratches detection and restoration via light diffraction
KOKARAM, ANIL CHRISTOPHER (IEEE, 2003)SFI -
The linear Monge-Kantorovitch linear colour mapping for example-based colour transfer
KOKARAM, ANIL CHRISTOPHER; PITIE, FRANCOIS (2007)A common task in image editing is to change the colours of a picture to match the desired colour grade of another picture. Finding the correct colour mapping is tricky because it involves numerous interrelated operations, ... -
Localised deflicker of moving images
KOKARAM, ANIL CHRISTOPHER; PITIE, FRANCOIS (2006)Brightness fluctuations in sequences are a typical impairment in archive and modern footage. These fluctuations are mainly temporal but they may also present spatial variations across each individual frame. Current deflicker ... -
MCMC for Joint Noise Reduction and Missing Data Treatment in Degraded Video
KOKARAM, ANIL CHRISTOPHER (2002)Image sequence restoration has been steadily gaining importance with the increasing prevalence of visual digital media. Automated treatment of archived video material typically involves dealing with replacement noise in ... -
Modeling High Level Structure in Sports with Motion Driven HMMs,
KOKARAM, ANIL CHRISTOPHER (IEEE, 2004)In this paper, we investigate the retrieval of dynamic events that occur in broadcast sports footage. Dynamic events in sports are important in so far as they are related to the game semantics. Thus far, the temporal ... -
A new global estimation algorithm and its application to retrieval in sport events
KOKARAM, ANIL CHRISTOPHER (IEEE, 2001)We propose a novel global motion estimation technique based on weighted gradient and displaced frame difference (DFD) associated with Wiener estimation. Then, we apply this technique to parse events of a high level of ... -
Non-parametric wavelet based texture synthesis
KOKARAM, ANIL CHRISTOPHER (2005)This paper presents a new algorithm for synthesising image texture. Texture synthesis is an important process in image post-production. Previous approaches can be classified as either parametric or nonparametric. Of these ... -
On missing data treatment for degraded video and film archives: a survey and a new Bayesian approach
KOKARAM, ANIL CHRISTOPHER (IEEE, 2004)Image sequence restoration has been steadily gaining in importance with the increasing prevalence of visual digital media. The demand for content increases the pressure on archives to automate their restoration activities ... -
Online Parsing of Sports Coaching Video Through Intrinsic Motion Analysis
KOKARAM, ANIL CHRISTOPHER; RING, DANIEL (2007)Automatic record and review of actions in sports training sessions is of great benefit to both coach and athlete. Many coaching sessions involve repetition of particular actions to hone technique, such as a swing from ...