Detecting siblings in image pairs

Vieira, Tiago Figueiredo; Bottino, A.; Laurentini, Aldo; Simone, Matteo

doi:10.1007/s00371-013-0884-3

Cited by 82 publications

(62 citation statements)

References 23 publications

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“…Six different stimuli sets were used, each containing 60 identically-sized color images of either unfamiliar faces 31,32 (two different datasets were used in Experiment 1 and with negative affective stimuli we also used three additional stimuli not from the official IAPS dataset, which were found to induce negative affect in another independent study 35 . All IAPS stimuli were rescaled to identical size (533 × 400 pixels).…”

Section: Methodsmentioning

confidence: 99%

The Cue-Approach Task as a General Mechanism for Long-Term Non-Reinforced Behavioral Change

Salomon

Botvinik‐Nezer

Gutentag

et al. 2017

Preprint

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Recent findings show that preferences for food items can be modified without externalreinforcements using the cue-approach task. In the task, the mere association of food item images with a neutral auditory cue and a speeded button press, resulted in enhanced preferences for the associated stimuli. Here, in a series of 10 independent samples with a total of 255 participants, we show we can enhance preferences using this non-reinforced method for faces, fractals and affective images as well as snack foods, using auditory, visual and even aversive cues. This change was highly durable in follow-up sessions performed one to six months after training. Preferences were successfully enhanced for all conditions, except for negative valence items. These findings promote our understanding of non-reinforced change, suggest a boundary condition for the effect and lay the foundation for development of novel applications. Peer-reviewed version available at Scientific Reports 2018, 8, 3614; doi:10.1038/s41598-018-21774-3 3 Behavioral change is an essential tool to improve health and quality of life, from treating addictions to eating and mood disorders [1][2][3] . Scientific research on behavioral change mainly focused on the effects of external reinforcements 2,[4][5][6][7] or altering the presentation of the decision problem [8][9][10] . Recently, the Cue-Approach Task (CAT) 11 was introduced as a successful method for enhancing preferences for food items, without external reinforcement, context change or selfcontrol. Here, we test multiple hypotheses that are aimed to shed light on this mechanism by studying its generalizability to multiple stimuli and cues, as well as the long-term durability of the effect.In the CAT, participants initially indicated their preferences for a set of snack-food items by specifying their willingness to pay for each item in an auction procedure. Then, in the cueapproach training, some of the items were consistently associated with a neutral auditory cue and a speeded button press response (these stimuli were termed 'Go items'), whereas other stimuli were presented without a cue ('No-Go items'). In the following probe phase, participants were asked to choose a snack they would like to eat at the end of the experiment. Each probe-choice comprised of a pair of items with similar initial values, in which one of the two snacks was a Go item. Results showed that the mere association of snack-food images with a neutral auditory cue and a speeded button press, resulted in enhanced preferences for Go items over No-Go items. This preference change effect varied across different value categories -resulting in enhanced preferences for snack-food items of initial high-value, yet significantly less prominent change in preferences for low-value items. The effect was maintained two-months following training 11 .Additional studies with CAT 12 found that for the behavioral change to take place, cue-approach training required the presence of both a speeded button press response and a cue; i.e. CAT ha...

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Section: Methodsmentioning

confidence: 99%

The Cue-Approach Task as a General Mechanism for Long-Term Non-Reinforced Behavioral Change

Salomon

Botvinik‐Nezer

Gutentag

et al. 2017

Preprint

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show abstract

“…Six different stimuli sets were used, each containing 60 identically-sized color images of either unfamiliar faces 31,32 (two different datasets were used in Experiment In experiments with negative affective stimuli we also used three additional stimuli not from the official IAPS dataset, which were found to induce negative affect in another independent study 35 . All IAPS stimuli were rescaled to identical size (533 × 400 pixels).…”

Section: Methodsmentioning

confidence: 99%

The Cue-Approach Task as a General Mechanism for Long-Term Non-Reinforced Behavioral Change

Salomon¹,

Botvinik-Nezer²,

Gutentag³

et al. 2017

Preprint

View full text Add to dashboard Cite

Recent findings show that preferences for food items can be modified without externalreinforcements using the cue-approach task. In the task, the mere association of food item images with a neutral auditory cue and a speeded button press, resulted in enhanced preferences for the associated stimuli. Here, in a series of 10 independent samples with a total of 255 participants, we show we can enhance preferences using this non-reinforced method for faces, fractals and affective images as well as snack foods, using auditory, visual and even aversive cues. This change was highly durable in follow-up sessions performed one to six months after training. Preferences were successfully enhanced for all conditions, except for negative valence items. These findings promote our understanding of non-reinforced change, suggest a boundary condition for the effect and lay the foundation for development of novel applications. Behavioral change is an essential tool to improve health and quality of life, from treating addictions to eating and mood disorders [1][2][3] . Scientific research on behavioral change mainly focused on the effects of external reinforcements 2,[4][5][6][7] or altering the presentation of the decision problem [8][9][10] . Recently, the Cue-Approach Task (CAT) 11 was introduced as a successful method for enhancing preferences for food items, without external reinforcement, context change or self-control. Here, we test multiple hypotheses that are aimed to shed light on this mechanism by studying its generalizability to multiple stimuli and cues, as well as the long-term durability of the effect.In the CAT, participants initially indicated their preferences for a set of snack-food items by specifying their willingness to pay for each item in an auction procedure. Then, in the cue-approach training, some of the items were consistently associated with a neutral auditory cue and a speeded button press response (these stimuli were termed 'Go items'), whereas other stimuli were presented without a cue ('No-Go items'). In the following probe phase, participants were asked to choose a snack they would like to eat at the end of the experiment. Each probe-choice comprised of a pair of items with similar initial values, in which one of the two snacks was a Go item. Results showed that the mere association of snack-food images with a neutral auditory cue and a speeded button press, resulted in enhanced preferences for Go items over No-Go items. This preference change effect varied across different value categories -resulting in enhanced preferences for snack-food items of initial high-value, yet significantly less prominent change in preferences for low-value items.The effect was maintained two-months following training 11. Additional studies with CAT 12 found that for the behavioral change to take place, cue-approach training required the presence of both a speeded button press response and a cue; i.e. CAT had no effect when training was conducted with an early cue onset which was followed with a full one secon...

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“…Firstly, HQFaces [32]: a database of 97 pairs of siblings' facial images, all photographed under the same lighting conditions; the subjects are Caucasian, ranging from 13 to 50 years of age, out of which 43% are female. For the purpose of our experiments, 148 frontal non smiling images were collected from this database.…”

Section: Methodsmentioning

confidence: 99%

Individualised model of facial age synthesis based on constrained regression

Bukar

Ugail

Connah

2015

2015 International Conference on Image Processing Theory, Tools and Applications (IPTA)

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-Faces convey much information. Interestingly we humans have a remarkable ability of identifying, extracting, and interpreting this information. Recently automatic facial ageing (AFA) has gained popularity due to its numerous applications which include search for missing people, biometrics, and multimedia. The problem of AFA is faced with various challenges, including incomplete training datasets, unrestrained environments, ethnic and gender variations to mention but a few. This work presents a new approach to automatic facial ageing which involves the development of a person specific facial ageing system. A color based Active Appearance Model (AAM) is used to extract facial features. Then, regression is used to model an age estimator. Age synthesis is achieved by computing a solution that minimises the distance from the original face with the use of constrained regression. The model is tested on a challenging database of single image per person. Initial results suggest that plausible images can be rerendered at different ages, automatically using the AAM representation. Using the constrained regressor we are guaranteed to get estimated ages that are exact for an individual at a given age.

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Detecting siblings in image pairs

Cited by 82 publications

References 23 publications

The Cue-Approach Task as a General Mechanism for Long-Term Non-Reinforced Behavioral Change<strong></strong>

The Cue-Approach Task as a General Mechanism for Long-Term Non-Reinforced Behavioral Change<strong></strong>

The Cue-Approach Task as a General Mechanism for Long-Term Non-Reinforced Behavioral Change<strong></strong>

Individualised model of facial age synthesis based on constrained regression

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