Preprocessing images of faces: correlations with human perceptions of distinctiveness and familiarity (original) (raw)

1995, Image Processing and its …

AI-generated Abstract

This research investigates how human perceptions of distinctiveness, memorability, and familiarity correlate with image processing of face images. Experimentation involved distinctiveness ratings from 34 subjects on a selection of 174 images of young Caucasian males, revealing that memorability and general familiarity represent independent factors. The implementation of principal component analysis (PCA) on facial images demonstrated that the structure of face data influences recognition performance, emphasizing that certain facial characteristics impact distinctiveness and recognition in unexpected ways.

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The face typicality-recognizability relationship: Encoding or retrieval locus?

Memory & Cognition, 2000

Using a crossover recognition memory testing paradigm, we tested whether the effects on face recognition of the memorability component of face typicality are due primarily to the encoding process occurring during study or to the retrieval process occurring at test. At study, faces were either veridical in form or at moderate (Experiment 1) or extreme (Experiment 2) levels of caricature. The variable of degree of facial caricature at study was crossed with the degree of caricature at test. The primary contribution of increased memorability to increased hit rate was through increased distinctiveness at study. Increased distinctiveness at test contributed to substantial reductions in the false alarm rate, too. Signal detection analyses confirmed that the mirror effects obtained were primarily stimulus/memory-based, rather than decision-based. Contrary to the conclusion of Vokey and Read (1992), we found that increments in face memorability produced increments in face recognition that were due at least as much to enhanced encoding of studied faces as they were to increased rejection of distractor faces.

Facial Memory: The Role of the Pre-Existing Knowledge in Face Processing and Recognition

Faces are visual stimuli full of information. Depending upon the familiarity with a face, the information we can extract will differ, so the more familiarity with a face, the more information that can be extracted from it. The present article reviews the role that pre-existing knowledge of a face has in its processing. Here, we focus on behavioral, electrophysiological and neuroimaging evidence. The influence of familiarity in early stages (attention, perception and working memory) and in later stages (pre-semantic and semantic knowledge) of the processing are discussed. The differences in brain anatomy for familiar and unfamiliar faces are also considered. As it will be shown, experimental data seems to support that familiarity can affect even the earliest stages of the recognition.

Face processing and familiarity: Evidence from eye‐movement data

British Journal of Psychology, 2005

How is information extracted from familiar and unfamiliar faces? Three experiments, in which eye-movement measures were used, examined whether there was differential sampling of the internal face region according to familiarity. Experiment 1 used a face familiarity task and found that whilst the majority of fixations fell within the internal region, there were no differences in the sampling of this region according to familiarity. Experiment 2 replicated these findings, using a standard recognition memory paradigm. The third experiment employed a matching task, and once again found that the majority of fixations fell within the internal region. Additionally, this experiment found that there was more sampling of the internal region when faces were familiar compared with when they were unfamiliar. The use of eye fixation measures affirms the importance of internal facial features in the recognition of familiar faces compared with unfamiliar faces, but only when viewers compare pairs of faces.

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