Investigation into the use of photoanthropometry in facial image comparison

Moreton, Reuben; Morley, Johanna

doi:10.1016/j.forsciint.2011.06.023

Cited by 57 publications

(44 citation statements)

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“…They found that proportionality indices changed significantly with camera angles, distance, resolution, and the lighting conditions. The conclusions of these studies were similar [12][13][14] and indicated that proportions of facial measurements are not adequate for the identification of an individual from a sample. However, the proportions used were single proportions, for example, taken as a percentage ratio of one trait to another; therefore these proportions are often subject to effects caused by image conditions, as reported.…”

Section: Introductionmentioning

confidence: 74%

“…To avoid complexities of correcting for angular and rectilinear distortions, various authors have used facial proportions measured on photographs taken in standard position in an attempt to identify known individuals from images [12][13][14]. Kleinberg and Siebert [12] investigated the use of ratios in facial identifications.…”

Section: Introductionmentioning

confidence: 99%

“…In each of these cases the images were of a high quality, which does not represent real life forensic conditions. Moreton and Morley [14] studied the effects of image quality as well as angle of the camera, distance, and lighting. They found that proportionality indices changed significantly with camera angles, distance, resolution, and the lighting conditions.…”

Section: Introductionmentioning

confidence: 99%

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Metric Identification of the Same People from Images: How Reliable Is It?

Lucas

Kumaratilake

Henneberg

2016

Journal of Anthropology

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Ratios have been applied to humans to identify individuals from images. These attempts have been proven unsuccessful, as camera angle, height, and distortions of the image affected the results. The anharmonic ratio is a ratio of ratios; it has proved successful in the identification of objects from images, as it is not affected by any distortions. The anharmonic ratio was applied to the human body and face to identify individuals from their images. Faces and bodies of twenty South Australian males aged 16-65 years were measured using standard anthropometric techniques. Participants were photographed in high quality images and recorded by standard surveillance camera (low quality images). Ten ratios were calculated from manual measurements and from all images. An Euclidean distance showed ratios incorrectly identified individuals 64.3% of the time between images of different quality. Variation of ratios between individuals is low so that standard deviations of ratios are of the magnitude similar to technical errors of measurements. Therefore participants cannot be isolated based on ratios. Ratios are an unreliable method for identification.

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Section: Introductionmentioning

confidence: 74%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Metric Identification of the Same People from Images: How Reliable Is It?

Lucas

Kumaratilake

Henneberg

2016

Journal of Anthropology

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“…A abordagem fotoantropométrica tradicional envolve a identificação de um número de pontos anatômicos na imagem e a medição das distâncias entre eles (ALLEN, 2008;MORETON;MORLEY, 2011). Para que proporções, índices e ângulos sejam mensurados, ao invés de se utilizar medidas lineares, pode-se normatizar estas distâncias, dividindo-as pela distância interpupilar, por exemplo.…”

Section: Fotoantropometria: a Imagem Como Fonte De Informaçãounclassified

“…(KLEINBERG et al, 2007;DORAN, 2000). Os chamados Índices de Proporcionalidade Normalizados (PIs) podem ser utilizados na comparação fotoantropométrica de uma imagem questionada com a imagem de referência, sendo calculados para cada medição como uma percentagem desta pela maior medição disponível (KLEINBERG et al, 2007;MORETON;MORLEY, 2011). No entanto, a utilização destes não são suficientemente discriminantes para identificar positivamente um indivíduo (KLEINBERG et al, 2007), sendo atualmente indicados para testes de exclusão (DAVIS; VALENTINE; DAVIS,…”

Section: Fotoantropometria: a Imagem Como Fonte De Informaçãounclassified

Proposta de metodologia de análise fotoantropométrica para identificação humana em imagens faciais em norma frontal

Flores¹

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Facial Comparison

Ruifrok

2014

Wiley Encyclopedia of Forensic Science

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In general, people are thought to be reasonably good at recognizing faces. However, it is difficult to match images of unfamiliar faces: the process of facial comparison. Facial comparison is a wide‐ranging forensic technique: it involves disciplines such as image analysis, anatomy, anthropology, photogrammetry, 3D technology, statistics, and cognitive psychology (human as a measuring instrument). Many steps in the comparison process are still mediocre, poorly or not supported by scientific data. The issues “quantification of image quality,” “human as a measuring instrument,” and “individualizing value of features” will be discussed in the context of man and machine's functioning as a measuring instrument. Research on humans as a measuring instrument in facial comparison is limited; most of the research concerns “recognition” or “rapid” comparison. Performance of current automated biometric systems is still too low to be of use for forensic purposes, although biometric systems may be useful for automated investigation of standardized image databases. The evidential value of surveillance material is severely limited by the quality of most surveillance material.

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Investigation into the use of photoanthropometry in facial image comparison

Cited by 57 publications

References 12 publications

Metric Identification of the Same People from Images: How Reliable Is It?

Metric Identification of the Same People from Images: How Reliable Is It?

Proposta de metodologia de análise fotoantropométrica para identificação humana em imagens faciais em norma frontal

Facial Comparison

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