Digital method for lip print analysis: A New approach

Prabhu, Rachana V; Dinkar, Ajit D; Prabhu, Vishnudas

doi:10.4103/0975-1475.119772

Cited by 27 publications

(25 citation statements)

References 6 publications

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“…10,11 Also, the amount and evenness, pressure and direction of the lipstick applied to the lips can disturb the accuracy of the records as well. 12 Thus, in this study an easier photographic method with nil physical contact as adopted by Kapoor & Badiye 13 in Indian population is applied.…”

Section: Discussionmentioning

confidence: 99%

A study on distribution and gender wise predilection of lip print pattern

Timsinha¹,

Kar²

2019

Asian J Med Sci

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Background: Lip prints are considered as very useful and are to be important forms of transfer evidence like finger prints. Studies have shown that even lip prints are unique for an individual and hence have the potential for personal identification. Aims and Objectives: To correlate the distribution of lip print pattern and its gender wise predominance. Material and Methods: The study comprised of 100 Nepalese medical students (50 males; 50 females). A photographic method was adopted rather than the old traditional lipstick method. The photographed lip prints were transferred into a computer to identify the character/lip print pattern. Statistical analysis was done using the SPSS (version 23.0) software package and Chi-square test was applied to evaluate the existence of correlation of lip print pattern with gender. Results: Type- II lip print pattern was frequently observed in all the four quadrants of both the sexes. This was followed by in order Type-I’>Type-I> Type-IV and Type-III lip patterns. There was a difference in gender wise distribution of lip prints. Conclusion: Further specific population based and gender specific studies on lip prints with larger sample size are required for comparison of lip prints with gender, so that a database could be created and used for representing sex differentiation.

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Section: Discussionmentioning

confidence: 99%

A study on distribution and gender wise predilection of lip print pattern

Timsinha¹,

Kar²

2019

Asian J Med Sci

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“…On the horizon are methods incorporating software and digital methods for better visualization of images and convenience. In December 2013, Prabhu et al presented the forensic science community with a pilot study using software (Adobe Photoshop ® 7, San Jose, CA) and using the Tsuchihashi classification. These authors acknowledge using Tsuchihashi Classification for its simplicity but recognized some limitations, and they too also offered modifications.…”

Section: Discussionmentioning

confidence: 99%

“…A system of classification is necessary to provide a basis for the scientific study of the pattern left by the human lips in an orderly fashion. This study utilized the one most widely used by research scientists throughout the world as defined by Tsuchihashi in 1970 and published in the ANSI/NIST standard . The grooves of the lips are typed and compared.…”

Section: Suzuki and Tsuchihashi Classification Of Lip Prints: Descripmentioning

confidence: 99%

Cheiloscopy: Lip Print Inter‐rater Reliability

Furnari

2016

Journal of Forensic Sciences

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Lip print analysis, or cheiloscopy, has the potential to join fingerprints and retinal scans as an additional method to determine human identification. This preliminary study sought to determine agreement among 20 raters, forensic odontologists, using an often referenced system that categorizes lip prints into six classes related to the dominant pattern of vertical, horizontal, and intersecting lines. Lip prints were taken from 13 individuals, and raters categorized eight distinct regions of each print. In addition to ratings made while viewing the actual prints, the raters repeated the exercise using photographs of the lip prints. Multirater kappa, a chance-corrected measure of agreement, ranged between 0.15 for the actual prints and 0.25 for the photos, indicating only poor to fair levels of inter-rater reliability. While these results fail to support the use of lip prints for human identification, it is possible that more intensive training may yet produce adequate levels of reliability.

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“…Cheiloscopic evidence was admissible in court back in the 1930's when Edmond Locard acknowledged the importance of cheiloscopy (Thomas & van Wyk 1988). Since then many researchers came out with various classification of lip prints (Santos 1967;Tsuchihashi 1974) however, Suzuki and Tsuchihashi classification was chosen by many researchers due to its simplicity (Prabhu et al 2013). Hence, this current study used Suzuki and Tsuchihashi classification for lip print analysis.…”

Section: Introductionmentioning

confidence: 99%

Lip Print Analysis in Malaysian Chinese Population (Klang Valley): LipstickCellophane Tape Technique

Hamzah¹,

Seliman²,

Osman³

et al. 2020

JSKM

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Cheiloscopy is recognized as a tool for personal identification due to its strength in criminalistics. In this study, the lip print of Malaysian Chinese population in Klang Valley was used for gender determination using lipstick-cellophane technique. 412 subjects (203 males and 209 females) were selected conveniently. Lipstick was first applied on the lips and the lip print was lifted using cellophane tape prior to pasting them onto a plain A4 paper and analysis using magnifying glass. Six topography areas of lip prints were classified using Suzuki and Tsuchihashi's classification, including upper left, upper middle, upper right, lower right, lower middle and lower left. Chi-square test showed that all lip sections were significantly different from each other (p < 0.05). Type II was the dominant pattern in four lip sections for both genders: upper left (male 81.3%, female 57.4%), upper right (male 71.9%, female 42.9%), lower left (male 98.0%, female 90.0%) and lower right (male 96.1%, female 86.1%). Type IV was the dominant pattern for both middle part of the lips; upper middle (male 56.2%, female 50.7%) and lower middle (male 62.6%, female 50.2%). The results showed that gender can be differentiated based on lip print patterns. This finding suggested that cheiloscopy could be used in aiding personal identification for forensic investigation.

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Digital method for lip print analysis: A New approach

Cited by 27 publications

References 6 publications

A study on distribution and gender wise predilection of lip print pattern

A study on distribution and gender wise predilection of lip print pattern

Cheiloscopy: Lip Print Inter‐rater Reliability

Lip Print Analysis in Malaysian Chinese Population (Klang Valley): LipstickCellophane Tape Technique

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