Apparent and real age estimation in still images with deep residual regressors on APPA-REAL database

International audienceAfter decades of research, the real (biological) age estimation from a single face image reached maturity thanks to the availability of large public face databases and impressive accuracies achieved by recently proposed methods. The estimation of " apparent age " is a related task concerning the age perceived by human observers. Significant advances have been also made in this new research direction with the recent Looking At People challenges. In this paper we make several contributions to age estimation research. (i) We introduce APPA-REAL, a large face image database with both real and apparent age annotations. (ii) We study the relationship between real and apparent age. (iii) We develop a residual age regression method to further improve the performance. (iv) We show that real age estimation can be successfully tackled as an apparent age estimation followed by an apparent to real age residual regression. (v) We graphically reveal the facial regions on which the CNN focuses in order to perform apparent and real age estimation tasks

Edge AI on a Deep-Learning based Real-Time Face Identification and Attributes Recognition System

There is another way of understanding how a customer service office works, and Everis is developing it in its new generation of spaces designed to offer easy and personalized attention to its customers. Some of the technologies implemented in this space to offer a better experience range from voice recognition or facial identification to the detection of hand gestures. The purpose of the project is to incorporate into the Everis customer e-Motion HUB a new computer vision-based system to extend its abilities and to improve the user experience.Face recognition systems are nowadays being used in a variety of settings, including surveillance systems and human-computer interactions. Different approaches have been used for face recognition throughout the years, but recent research has shown that Deep Learning models along with Convolutional Neural Networks, or \gls{CNN}s, provide better results than any other methods. However, these more complex \gls{CNN} models have several limitations, including the need for extensive training data or high computational requirements in some cases. Fields such as robotics and embedded systems that deploy face recognition systems have significantly less power on board and limited heat dissipation capacity. Therefore, it can be difficult to deploy deep learning models on them. Additionally, and to counter these issues, the classical approach in some industries has been to rely on cloud computing or other third companies paid services. Edge computing devices, such as the NVIDIA Jetson Nano proposed in this approach, can bridge this gap by providing certain advantages in many different areas. In this thesis, we explore the Edge Artificial Intelligence or Edge AI capabilities by developing and implementing a real-time face recognition system along with multiple feature extraction namely age, gender, emotions, and paid attention. Additionally, we provide a data storing approach into a relational database so that all the gathered information can be further exploited. Although this work has certain areas that can be improved, mainly with regards to its efficiency, it has served as a proof of concept for the ideas behind it. Consequently, research in this direction will surely be continued

On the effect of age perception biases for real age regression

Automatic age estimation from facial images represents an important task in computer vision. This paper analyses the effect of gender, age, ethnic, makeup and expression attributes of faces as sources of bias to improve deep apparent age prediction. Following recent works where it is shown that apparent age labels benefit real age estimation, rather than direct real to real age regression, our main contribution is the integration, in an end-to-end architecture, of face attributes for apparent age prediction with an additional loss for real age regression. Experimental results on the APPA-REAL dataset indicate the proposed network successfully take advantage of the adopted attributes to improve both apparent and real age estimation. Our model outperformed a state-of-the-art architecture proposed to separately address apparent and real age regression. Finally, we present preliminary results and discussion of a proof of concept application using the proposed model to regress the apparent age of an individual based on the gender of an external observer.Comment: Accepted in the 14th IEEE International Conference on Automatic Face and Gesture Recognition (FG 2019

Applying artificial intelligence to assess the impact of orthognathic treatment on facial attractiveness and estimated age

This observational study aimed to use artificial intelligence to describe the impact of orthognathic treatment on facial attractiveness and age appearance. Pre- and post-treatment photographs (n=2164) of 146 consecutive orthognathic patients were collected for this longitudinal retrospective single-centre study. Every image was annotated with patient-related data (age; sex; malocclusion; performed surgery). For every image, facial attractiveness (score: 0-100) and apparent age were established with dedicated convolutional neural networks trained on >0.5million images for age estimation and with >17million ratings for attractiveness. Results for pre- and post-treatment photographs were averaged for every patient separately, and apparent age compared to real age (appearance). Changes in appearance and facial attractiveness were statistically examined. Analyses were performed on the entire sample and subgroups (sex; malocclusion; performed surgery). According to the algorithms, most patients' appearance improved with treatment (66.4%), resulting in younger appearance of nearly 1year [mean change: -0.93years (95% confidence interval (CI): -1.50; -0.36); p=0.002), especially after profile-altering surgery. Orthognathic treatment had similarly a beneficial effect on attractiveness in 74.7% [mean difference: 1.22 (95% CI: 0.81; 1.63); p<0.001], especially after lower jaw surgery. This investigation illustrates that artificial intelligence might be considered to score facial attractiveness and apparent age in orthognathic patients