2D and 3D computer vision analysis of gaze, gender and age (2016)
Thesis
Zhang, W. (in press). 2D and 3D computer vision analysis of gaze, gender and age. (Thesis). University of the West of England. Retrieved from https://uwe-repository.worktribe.com/output/801890

Human-Computer Interaction (HCI) has been an active research area for over four decades. Research studies and commercial designs in this area have been largely facilitated by the visual modality which brings diversified functionality and improved usa... Read More about 2D and 3D computer vision analysis of gaze, gender and age.

Realistic and interactive high-resolution 4D environments for real-time surgeon and patient interaction (2016)
Journal Article
Smith, L. N., Farooq, A. R., Smith, M. L., Ivanov, I. E., & Orlando, A. (2017). Realistic and interactive high-resolution 4D environments for real-time surgeon and patient interaction. International Journal of Medical Robotics and Computer Assisted Surgery, 13(2), Article e1761. https://doi.org/10.1002/rcs.1761

Copyright © 2016 John Wiley & Sons, Ltd. Background: Remote consultations that are realistic enough to be useful medically offer considerable clinical, logistical and cost benefits. Despite advances in virtual reality and vision hardware and softwa... Read More about Realistic and interactive high-resolution 4D environments for real-time surgeon and patient interaction.

Eye centre localisation: An unsupervised modular approach (2016)
Journal Article
Zhang, W., Smith, M. L., Smith, L. N., & Farooq, A. R. (2016). Eye centre localisation: An unsupervised modular approach. Sensor Review, 36(3), 277-286. https://doi.org/10.1108/SR-06-2015-0098

© Emerald Group Publishing Limited. Purpose - This paper aims to introduce an unsupervised modular approach for eye centre localisation in images and videos following a coarse-to-fine, global-to-regional scheme. The design of the algorithm aims at ex... Read More about Eye centre localisation: An unsupervised modular approach.

A comparative study of pose representation and dynamics modelling for online motion quality assessment (2016)
Journal Article
Tao, L., Paiement, A., Damen, D., Mirmehdi, M., Hannuna, S., Camplani, M., …Craddock, I. (2016). A comparative study of pose representation and dynamics modelling for online motion quality assessment. Computer Vision and Image Understanding, 148, 136-152. https://doi.org/10.1016/j.cviu.2015.11.016

© 2015 The Authors. Published by Elsevier Inc. Quantitative assessment of the quality of motion is increasingly in demand by clinicians in healthcare and rehabilitation monitoring of patients. We study and compare the performances of different pose r... Read More about A comparative study of pose representation and dynamics modelling for online motion quality assessment.

Robust deformable shape reconstruction from monocular video with manifold forests (2016)
Journal Article
Matuszewski, B. J., Tao, L., & Matuszewski, B. (2016). Robust deformable shape reconstruction from monocular video with manifold forests. Machine Vision and Applications, 27(6), 801-819. https://doi.org/10.1007/s00138-016-0769-3

© 2016, The Author(s). Existing approaches to recover structure of 3D deformable objects and camera motion parameters from an uncalibrated images assume the object’s shape could be modelled well by a linear subspace. These methods have been proven ef... Read More about Robust deformable shape reconstruction from monocular video with manifold forests.

Gender and gaze gesture recognition for human-computer interaction (2016)
Journal Article
Zhang, W., Smith, M. L., Smith, L. N., & Farooq, A. (2016). Gender and gaze gesture recognition for human-computer interaction. Computer Vision and Image Understanding, 149, 32-50. https://doi.org/10.1016/j.cviu.2016.03.014

© 2016 Elsevier Inc. The identification of visual cues in facial images has been widely explored in the broad area of computer vision. However theoretical analyses are often not transformed into widespread assistive Human-Computer Interaction (HCI) s... Read More about Gender and gaze gesture recognition for human-computer interaction.

Eye center localization and gaze gesture recognition for human-computer interaction (2016)
Journal Article
Zhang, W., Smith, M. L., Smith, L. N., & Farooq, A. (2016). Eye center localization and gaze gesture recognition for human-computer interaction. Journal of the Optical Society of America A, 33(3), 314-325. https://doi.org/10.1364/JOSAA.33.000314

© 2016 Optical Society of America. This paper introduces an unsupervised modular approach for accurate and real-time eye center localization in images and videos, thus allowing a coarse-to-fine, global-to-regional scheme. The trajectories of eye cent... Read More about Eye center localization and gaze gesture recognition for human-computer interaction.

Gender recognition from facial images: Two or three dimensions? (2016)
Journal Article
Zhang, W., Smith, M. L., Smith, L. N., & Farooq, A. (2016). Gender recognition from facial images: Two or three dimensions?. Journal of the Optical Society of America A, 33(3), 333-344. https://doi.org/10.1364/JOSAA.33.000333

© 2016 Optical Society of America. This paper seeks to compare encoded features from both two-dimensional (2D) and three-dimensional (3D) face images in order to achieve automatic gender recognition with high accuracy and robustness. The Fisher vecto... Read More about Gender recognition from facial images: Two or three dimensions?.

Is the 2D unlabelled data adequate for facial expression recognition? (2016)
Journal Article
recognition?. IEEE Intelligent Systems, 31(3), 19-29

Automatic facial expression recognition is one of the important challenges for computer vision and machine learning. Despite the fact that many successes have been achieved in the recent years, several important but unresolved problems still remain.... Read More about Is the 2D unlabelled data adequate for facial expression recognition?.

Channel measurement and time dispersion analysis for outdoor mobile ultrawideband environment (2016)
Journal Article
Nunoo, S., Chude-Okonkwo, U. A. K., Ngah, R., Chude-Olisah, C., & Zahedi, Y. K. (2016). Channel measurement and time dispersion analysis for outdoor mobile ultrawideband environment. Turkish Journal of Electrical Engineering & Computer Sciences, 24, 4555-4568. https://doi.org/10.3906/elk-1310-103

Ultrawideband (UWB) technology offers short-range high-data transmission rates. Most researchers in recent times have focused on indoor UWB channel measurements and in instances where outdoor cases were reported, they focused on static scenarios. Thi... Read More about Channel measurement and time dispersion analysis for outdoor mobile ultrawideband environment.

Non-intrusive automated measurement of dairy cow body condition using 3D video (2015)
Presentation / Conference
Hansen, M. F., Smith, M., Smith, L., & Hales, I. (2015, September). Non-intrusive automated measurement of dairy cow body condition using 3D video. Presented at British Machine Vision Conference - Workshop of Machine Vision and Animal Behaviour, Swansea, Wales, UK

Regular scoring of a dairy herd in terms of various physical metrics such as Body Condition Score (BCS), mobility and weight are essential for maintaining high animal welfare. This paper presents preliminary results of an automated system capable of... Read More about Non-intrusive automated measurement of dairy cow body condition using 3D video.

Hierarchical rank-based veiling light estimation for underwater dehazing (2015)
Conference Proceeding
Emberton, S., Chittka, L., & Cavallaro, A. (2015). Hierarchical rank-based veiling light estimation for underwater dehazing. In X. Xie, M. W. Jones, & G. K. Tam (Eds.), Proceedings of the British Machine Vision Conference 2015 (125.1-125.12). https://doi.org/10.5244/C.29.125

Current dehazing approaches are often hindered when scenes contain bright objects which can cause veiling light and transmission estimation methods to fail. This paper introduces a single image dehazing approach for underwater images with novel veili... Read More about Hierarchical rank-based veiling light estimation for underwater dehazing.

Bridging eHealth and the Internet of Things: The SPHERE Project (2015)
Journal Article
Zhu, N., Diethe, T., Camplani, M., Tao, L., Burrows, A., Twomey, N., …Craddock, I. (2015). Bridging eHealth and the Internet of Things: The SPHERE Project. IEEE Intelligent Systems, 30(4), 39-46

There is a widely-accepted need to revise current forms of healthcare provision. Of particular interest are sensing systems in the home, which have been central to a number of studies in this area. This paper presents an overview of this rapidly grow... Read More about Bridging eHealth and the Internet of Things: The SPHERE Project.

Ptu-024 - photometric stereo reconstruction for surface analysis of mucosal tissue (2015)
Journal Article
Poullis, A., Groves, C., Slabaugh, G., Emrith, K., & Smith, M. (2015). Ptu-024 - photometric stereo reconstruction for surface analysis of mucosal tissue. BMJ, 64(1), 68-69

This paper provides a novel approach for real-time detection of polyps. Using a photometric stereo sensor for endoscopy imaging in a porcine model, the 3D surface geometry of a porcine gut is recovered. Shape features are extracted from the 3D surfac... Read More about Ptu-024 - photometric stereo reconstruction for surface analysis of mucosal tissue.

Characterization and parameterization of dynamic wireless channels over long duration using evolutionary channel parameters (2015)
Journal Article
Chude-Okonkwo, U. A. K., Chude-Olisah, C. C., Nunoo, S., & Nga, R. (2016). Characterization and parameterization of dynamic wireless channels over long duration using evolutionary channel parameters. International Journal of Communication Systems, 29(5), 893-915. https://doi.org/10.1002/dac.2991

The characterization and parameterization of processes that arise in many fields of science and technology are very crucial. Of particular importance are dynamic processes whose statistics are time-varying and are often modeled as stochastic processe... Read More about Characterization and parameterization of dynamic wireless channels over long duration using evolutionary channel parameters.

Combination of 3D skin surface texture features and 2D ABCD features for improved melanoma diagnosis (2015)
Journal Article
Ding, Y., John, N. W., Smith, L., Sun, J., & Smith, M. (2015). Combination of 3D skin surface texture features and 2D ABCD features for improved melanoma diagnosis. Medical and Biological Engineering and Computing, 53(10), 961-974. https://doi.org/10.1007/s11517-015-1281-z

© 2015, International Federation for Medical and Biological Engineering. Two-dimensional asymmetry, border irregularity, colour variegation and diameter (ABCD) features are important indicators currently used for computer-assisted diagnosis of malign... Read More about Combination of 3D skin surface texture features and 2D ABCD features for improved melanoma diagnosis.

3D reconstruction of concave surfaces using polarisation imaging (2015)
Journal Article
Sohaib, A., Farooq, A. R., Ahmed, J., Smith, L. N., & Smith, M. N. (2015). 3D reconstruction of concave surfaces using polarisation imaging. Journal of Modern Optics, 62(11), 927-932. https://doi.org/10.1080/09500340.2015.1016130

© 2015 Taylor & Francis. This paper presents a novel algorithm for improved shape recovery using polarisation-based photometric stereo. The majority of previous research using photometric stereo involves 3D reconstruction using both the diffuse and... Read More about 3D reconstruction of concave surfaces using polarisation imaging.

Testing the validity of Lambert's law for micro-scale photometric stereo applied to paper substrates (2015)
Presentation / Conference
Azhar, F., Emrith, K., Pollard, S., Smith, M., Adams, G., & Simske, S. (2015, March). Testing the validity of Lambert's law for micro-scale photometric stereo applied to paper substrates. Paper presented at 10th International Conference on Computer Vision Theory and Applications (VISIGRAPP 2015), Berlin, Germany

This paper presents an empirical study to investigate the use of photometric stereo (PS) for micro-scale 3D measurement of paper samples. PS estimates per-pixel surface orientation from images of a surface captured from the same viewpoint but under d... Read More about Testing the validity of Lambert's law for micro-scale photometric stereo applied to paper substrates.

Innovative optical non-contact measurement of respiratory function using photometric stereo (2015)
Thesis
Ahmad, J. Innovative optical non-contact measurement of respiratory function using photometric stereo. (Thesis). University of the West of England. Retrieved from https://uwe-repository.worktribe.com/output/839396

Pulmonary functional testing is very common and widely used in today's clinical environment for testing lung function. The contact based nature of a Spirometer can cause breathing awareness that alters the breathing pattern, affects the amount of air... Read More about Innovative optical non-contact measurement of respiratory function using photometric stereo.

A photometric stereo approach for chronic wound measurement (2015)
Journal Article
Smith, M. L., Farooq, A. R., Smith, L. N., Sun, J., Xu, X., Farooq, A., …smith, M. (2015). A photometric stereo approach for chronic wound measurement. Sensor Review, 35(4), 419-424. https://doi.org/10.1108/SR-01-2015-0018

© 2015 © Emerald Group Publishing Limited. Purpose-This paper aims to review state of the art of techniques for dimensioning chronic wounds, and validate the possibilities of employing a new proposed optical imaging approach for general task of wound... Read More about A photometric stereo approach for chronic wound measurement.