Outputs (51)

A novel photometric stereo imaging sensor for endoscopy imaging: Proof of concept studies on a porcine model (2014)
Journal Article
Poullis, A., Groves, C., Slabaugh, G., Emrith, K., & Smith, M. (2014). A novel photometric stereo imaging sensor for endoscopy imaging: Proof of concept studies on a porcine model. Gut, 63(S1), A46-A47. https://doi.org/10.1136/gutjnl-2014-307263.96

The American Society of Gastroenterology Endoscopy led Preservation and Incorporation of Valuable Endoscopy Innovations initiative has identified real time poly diagnosis as one of the next major technology driven changes in endoscopy (1). A number o... Read More about A novel photometric stereo imaging sensor for endoscopy imaging: Proof of concept studies on a porcine model.

Paper type classification based on a new 3D surface texture measure (2014)
Journal Article
Malekmohamadi, H., Emrith, K., Pollard, S., Adams, G., Smith, M., & Simske, S. (2014). Paper type classification based on a new 3D surface texture measure. Electronics Letters, 50(8), 596-598. https://doi.org/10.1049/el.2013.2687

A novel three-dimensional (3D) surface texture measure (3DSTM) is presented based on the micro-geometry of paper surfaces to classify different paper substrates. This is useful to automatically determine whether a document is printed on the correct p... Read More about Paper type classification based on a new 3D surface texture measure.

Face recognition and verification using photometric stereo: The photoface database and a comprehensive evaluation (2013)
Journal Article
Smith, L. N., Smith, M. L., Hansen, M. F., Atkinson, G. A., Zafeiriou, S., Atkinson, G., …Smith, L. (2013). Face recognition and verification using photometric stereo: The photoface database and a comprehensive evaluation. IEEE Transactions on Information Forensics and Security, 8(1), 121-135. https://doi.org/10.1109/TIFS.2012.2224109

This paper presents a new database suitable for both 2-D and 3-D face recognition based on photometric stereo (PS): the Photoface database. The database was collected using a custom-made four-source PS device designed to enable data capture with mini... Read More about Face recognition and verification using photometric stereo: The photoface database and a comprehensive evaluation.

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.

Robust 3D face capture using example-based photometric stereo (2013)
Journal Article
Smith, M. L., Atkinson, G. A., Leitão, H. C., Saracchini, R. F., Saracchini, R., Stolfi, J., …Smith, M. (2013). Robust 3D face capture using example-based photometric stereo. Computers in Industry, 64(9), 1399-1410. https://doi.org/10.1016/j.compind.2013.04.003

We show that using example-based photometric stereo, it is possible to achieve realistic reconstructions of the human face. The method can handle non-Lambertian reflectance and attached shadows after a simple calibration step. We use spherical harmon... Read More about Robust 3D face capture using example-based photometric stereo.

Multidimensional imaging for skin tissue surface characterization (2013)
Journal Article
Sun, J., & Smith, M. (2013). Multidimensional imaging for skin tissue surface characterization. Computers in Industry, 64(9), 1383-1389. https://doi.org/10.1016/j.compind.2013.06.004

Human skin, the outer and largest organ covering our body, can be described in terms of both its 3D spatial topography and its 2D spectral reflectance. Such a characterization normally requires the application of separate procedures using different k... Read More about Multidimensional imaging for skin tissue surface characterization.

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.

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.

A robust multi-scale integration method to obtain the depth from gradient maps (2012)
Journal Article
Smith, M. L., Atkinson, G. A., Leitão, H. C., Saracchini, R. F., Saracchini, R., Stolfi, J., …Smith, M. (2012). A robust multi-scale integration method to obtain the depth from gradient maps. Computer Vision and Image Understanding, 116(8), 882-895. https://doi.org/10.1016/j.cviu.2012.03.006

We describe a robust method for the recovery of the depth map (or height map) from a gradient map (or normal map) of a scene, such as would be obtained by photometric stereo or interferometry. Our method allows for uncertain or missing samples, which... Read More about A robust multi-scale integration method to obtain the depth from gradient maps.

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.