All Outputs (75)

Incorporating clinical metadata with digital image features for automated identification of cutaneous melanoma (2013)
Journal Article
Liu, Z., Sun, J., Smith, M., & Smith, L. (2013). Incorporating clinical metadata with digital image features for automated identification of cutaneous melanoma. British Journal of Dermatology,

Abstract Background Computer-assisted diagnosis (CAD) of malignant melanoma (MM) has been advocated to help clinicians in achieving a more objective and reliable assessment. However, conventional CAD systems only examine the features extracted from... Read More about Incorporating clinical metadata with digital image features for automated identification of cutaneous melanoma.

In vivo measurement of skin microrelief using photometric stereo in the presence of interreflections (2013)
Journal Article
Sohaib, A., Farooq, A., Atkinson, G., Smith, L., Smith, M., & Warr, R. (2013). In vivo measurement of skin microrelief using photometric
stereo in the presence of interreflections. Journal of the Optical Society of America A,

This paper proposes and describes an implementation of a novel photometric stereo based technique for in vivo assessment of three-dimensional (3D) skin topography in the presence of interreflections. The proposed method illuminates skin with red, gr... Read More about In vivo measurement of skin microrelief using photometric stereo in the presence of interreflections.

Real-time recovery of moving 3D faces for emerging applications (2013)
Journal Article
Molleda, J., Smith, M. L., Smith, L. N., Broadbent, L., Emrith, K., Emrith, K., …Molleda, J. (2013). Real-time recovery of moving 3D faces for emerging applications. Computers in Industry, 64(9), 1390-1398. https://doi.org/10.1016/j.compind.2013.03.011

Existing face imaging systems are not suitable to meet the face representation and recognition demands for emerging applications in areas such as interactive gaming, enhanced learning environments and directed advertising. This is mainly due to the p... Read More about Real-time recovery of moving 3D faces for emerging applications.

An improved 3D imaging system for dimensional quality inspection of rolled products in the metal industry (2013)
Journal Article
Smith, L. N., Espina, A., Bulnes, F. G., García, D. F., Usamentiaga, R., Molleda, J., …Smith, L. (2013). An improved 3D imaging system for dimensional quality inspection of rolled products in the metal industry. Computers in Industry, 64(9), 1186-1200. https://doi.org/10.1016/j.compind.2013.05.002

Measurement, inspection and quality control in industry have benefited from 3D techniques for imaging and visualization in recent years. The development of machine vision devices at decreased costs, as well as their miniaturization and integration in... Read More about An improved 3D imaging system for dimensional quality inspection of rolled products in the metal industry.

Dynamic deflectometry: A novel approach for the on-line reconstruction of specular freeform surfaces (2012)
Journal Article
Wedowski, R. D., Atkinson, G., Smith, M., & Smith, L. (2012). Dynamic deflectometry: A novel approach for the on-line reconstruction of specular freeform surfaces. Optics and Lasers in Engineering, 50(12), 1765-1778. https://doi.org/10.1016/j.optlaseng.2012.07.003

The dynamic inspection and reverse engineering of specular freeform surfaces is a challenge so far largely unsolved. Products produced in high quantities in industrial environments are still inspected manually which is labour intensive, expensive, mo... Read More about Dynamic deflectometry: A novel approach for the on-line reconstruction of specular freeform surfaces.

Combinatorial photometric stereo and its application in 3D modeling of melanoma (2012)
Journal Article
Smith, M. L., Zhou, Y., Smith, M., Smith, L., & Warr, R. (2012). Combinatorial photometric stereo and its application in 3D modeling of melanoma. Machine Vision and Applications, 23(5), 1029-1045. https://doi.org/10.1007/s00138-011-0356-6

This article concerns a new type of photometric stereo algorithm for which outliers such as highlights and shadows, including attached and cast shadow, are mixed with Lambertian data. The underlying motivation behind this algorithm is very simple: an... Read More about Combinatorial photometric stereo and its application in 3D modeling of melanoma.

Innovative machine vision technique for 2D/3D complex and irregular surfaces modelling (2012)
Journal Article
complex and irregular surfaces modelling. International Journal of Computer Science Issues, 9(5), 113-121

Abstract—This study propose and demonstrates a novel technique incorporating multilayer perceptron (MLP) neural networks for feature extraction with Photometric stereo based image capture techniques for the analysis of complex and irregular 2D profil... Read More about Innovative machine vision technique for 2D/3D complex and irregular surfaces modelling.

Distribution quantification on dermoscopy images for computer-Assisted diagnosis of cutaneous melanomas (2012)
Journal Article
Liu, Z., Sun, J., Smith, L., Smith, M., & Warr, R. (2012). Distribution quantification on dermoscopy images for computer-Assisted diagnosis of cutaneous melanomas. Medical and Biological Engineering and Computing, 50(5), 503-513. https://doi.org/10.1007/s11517-012-0895-7

Computerised analysis on skin lesion images has been reported to be helpful in achieving objective and reproducible diagnosis of melanoma. In particular, asymmetry in shape, colour and structure reflects the irregular growth of melanin under the skin... Read More about Distribution quantification on dermoscopy images for computer-Assisted diagnosis of cutaneous melanomas.

Branch cutting algorithm for unwrapping photoelastic phase map with isotropic point (2012)
Journal Article
Lao, F. Y., Liang, H. R., Huang, M. J., Zhang, Y. T., Wedowski, R., Atkinson, G., …Smith, L. (2012). Branch cutting algorithm for unwrapping photoelastic phase map with isotropic point. Optics and Lasers in Engineering, 50(5), 619-631. https://doi.org/10.1016/j.optlaseng.2011.10.013

A branch cutting algorithm is proposed to solve the wrapped isoclinic causing isochromatic discontinuity and thus to decouple the isoclinicisochromatic interaction of photoelastic phase maps. Rather than pixel by pixel, the branch-cutting isoclinic w... Read More about Branch cutting algorithm for unwrapping photoelastic phase map with isotropic point.

Unsupervised sub-segmentation for pigmented skin lesions (2012)
Journal Article
Liu, Z., Sun, J., Smith, M., Smith, L., & Warr, R. (2012). Unsupervised sub-segmentation for pigmented skin lesions. Skin Research and Technology, 18(1), 77-87. https://doi.org/10.1111/j.1600-0846.2011.00534.x

Background: Early identification of malignant melanoma with the surgical removal of thin lesions is the most effective treatment for skin cancers. A computer-aided diagnostic system assists to improve the diagnostic accuracy, where segmenting lesion... Read More about Unsupervised sub-segmentation for pigmented skin lesions.

Biological indexes based reflectional asymmetry for classifying cutaneous lesions (2011)
Journal Article
Liu, Z., Smith, L., Sun, J., Smith, M., & Warr, R. (2011). Biological indexes based reflectional asymmetry for classifying cutaneous lesions. Lecture Notes in Artificial Intelligence, 6893 LNCS(PART 3), 124-132. https://doi.org/10.1007/978-3-642-23626-6_16

This paper proposes a novel reflectional asymmetry descriptor to quantize the asymmetry of the cutaneous lesions for the discrimination of malignant melanoma from benign nevi. A pigmentation elevation model of the biological indexes is first construc... Read More about Biological indexes based reflectional asymmetry for classifying cutaneous lesions.

Psychologically inspired dimensionality reduction for 2D and 3D Face Recognition (2011)
Presentation / Conference
Hansen, M. F., Atkinson, G., Smith, M., & Smith, L. (2011, September). Psychologically inspired dimensionality reduction for 2D and 3D Face Recognition. Paper presented at British Machine Vision Conference 2011, Dundee, UK

We present a number of related novel methods for reducing the dimensionality of data for the purposes of 2D and 3D face recognition. Results from psychology show that humans are capable of very good recognition of low resolution images and caricature... Read More about Psychologically inspired dimensionality reduction for 2D and 3D Face Recognition.

The photoface database (2011)
Presentation / Conference
Zafeirou, S., Hansen, M. F., Atkinson, G., Argyriou, V., Petrou, M., Smith, M., & Smith, L. (2011, June). The photoface database. Paper presented at Biometrics Workshop of Computer Vision and Pattern Recognition, Colorado Springs, Colorado, USA

Machine vision 3D skin texture analysis for detection of melanoma (2011)
Journal Article
Ding, Y., Smith, L., Smith, M., Farooq, A., Sun, J., & Warr, R. (2011). Machine vision 3D skin texture analysis for detection of melanoma. Sensor Review, 31(2), 111-119. https://doi.org/10.1108/02602281111109961

Pur ose - The ur ose of this a er is to describe innovative machine vision methods that have been em loyed for the ca ture and analysis of 3D skin textures; and the resulting otential for assisting with identification of sus icious lesions in the det... Read More about Machine vision 3D skin texture analysis for detection of melanoma.

Enhanced 3D curvature pattern and melanoma diagnosis (2011)
Journal Article
Warr, R., Zhou, Y., Smith, M., Smith, L., & Farooq, A. (2011). Enhanced 3D curvature pattern and melanoma diagnosis. Computerized Medical Imaging and Graphics, 35(2), 155-165. https://doi.org/10.1016/j.compmedimag.2010.10.004

This article describes an enhanced curvature pattern based melanoma diagnosis system using convolution techniques and ensemble classifiers. We extract the 3. D data of melanoma with a photometric stereo device first. Then differential forms of the me... Read More about Enhanced 3D curvature pattern and melanoma diagnosis.

High speed, multi-scale tracing of curvilinear features with automated scale selection and enhanced orientation computation (2010)
Conference Proceeding
Wedowski, R., Farooq, A., Smith, L., & Smith, M. (2010). High speed, multi-scale tracing of curvilinear features with automated scale selection and enhanced orientation computation. In W. Smari (Ed.), International Conference on High Performance Computing and Simulation (HPCS), 2010 (410-417). https://doi.org/10.1109/HPCS.2010.5547105

We propose a new high speed line tracing algorithm based on a well known differential geometric line extraction algorithm. The previously separate steps of line detection and line tracing are performed simultaneously. This allows the exclusion of non... Read More about High speed, multi-scale tracing of curvilinear features with automated scale selection and enhanced orientation computation.

Human subjectivity to apparent randomness of surface textures (2010)
Presentation / Conference
Emrith, K., Chantler, M. J., Green, P. R., Smith, M., & Smith, L. (2010, September). Human subjectivity to apparent randomness of surface textures. Presented at 2nd CIE Expert Symposium on Appearance, Gent, Belgium

An efficient and practical 3D face scanner using near infrared and visible photometric stereo (2010)
Presentation / Conference
Atkinson, G., Hansen, M. F., Smith, M., & Smith, L. (2010, September). An efficient and practical 3D face scanner using near infrared and visible photometric stereo. Paper presented at International Conference and Exhibition on Biometrics Technology, Coimbatore, India

This paper is concerned with the acquisition of model data for automatic 3D face recognition applications. As 3D methods become progressively more popular in face recognition research, the need for fast and accurate data capture has become crucial. T... Read More about An efficient and practical 3D face scanner using near infrared and visible photometric stereo.

3D face reconstructions from photometric stereo using near infrared and visible light (2010)
Journal Article
Hansen, M. F., Atkinson, G., Smith, L., & Smith, M. (2010). 3D face reconstructions from photometric stereo using near infrared and visible light. Computer Vision and Image Understanding, 114(8), 942-951. https://doi.org/10.1016/j.cviu.2010.03.001

This paper seeks to advance the state-of-the-art in 3D face capture and processing via novel Photometric Stereo (PS) hardware and algorithms. The first contribution is a new high-speed 3D data capture system, which is capable of acquiring four raw im... Read More about 3D face reconstructions from photometric stereo using near infrared and visible light.

An automated mean-shift based segmentation for pigmented skin lesions (2010)
Presentation / Conference
Zhao, L., Sun, J., Smith, M., Smith, L., & Warr, R. (2010, July). An automated mean-shift based segmentation for pigmented skin lesions. Paper presented at 2010 Proceedings of Medical Image Understanding and Analysis (MIUA), Warwick

This paper presents an unsupervised segmentation scheme to isolate pigmented skin lesion from surrounding normal skin. An adaptive mean-shift algorithm combined with maximal similarity based region merging is applied with a colour-spatial feature sp... Read More about An automated mean-shift based segmentation for pigmented skin lesions.