Introduction To The Special Issue On Affect Analysis In Continuous Input (original) (raw)
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Continuous Analysis of Affect from Voice and Face
Human affective behavior is multimodal, continuous and complex. Despite major advances within the affective computing research field, modeling, analyzing, interpreting and responding to human affective behavior still remains a challenge for automated systems. Therefore, affective and behavioral computing researchers have recently invested increased effort in exploring how to best model, analyze and interpret the subtlety, complexity and continuity of affective behavior in terms of latent dimensions (e.g., arousal, power and valence) and appraisals, rather than in terms of a small number of discrete emotion categories (e.g., happiness and sadness). This chapter aims to (i) give a brief overview of the existing efforts and the major accomplishments in modeling and analysis of emotional expressions in dimensional and continuous space while focusing on open issues and new challenges in the field, and (ii) introduce a representative approach for multimodal continuous analysis of affect from voice and face.
Subjective Evaluation of Basic Emotions from Audio–Visual Data
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Understanding of the perception of emotions or affective states in humans is important to develop emotion-aware systems that work in realistic scenarios. In this paper, the perception of emotions in naturalistic human interaction (audio–visual data) is studied using perceptual evaluation. For this purpose, a naturalistic audio–visual emotion database collected from TV broadcasts such as soap-operas and movies, called the IIIT-H Audio–Visual Emotion (IIIT-H AVE) database, is used. The database consists of audio-alone, video-alone, and audio–visual data in English. Using data of all three modes, perceptual tests are conducted for four basic emotions (angry, happy, neutral, and sad) based on category labeling and for two dimensions, namely arousal (active or passive) and valence (positive or negative), based on dimensional labeling. The results indicated that the participants’ perception of emotions was remarkably different between the audio-alone, video-alone, and audio–video data. Th...
Human Emotion Detection from Audio and Video Signals
ArXiv, 2020
The primary objective is to teach a machine about human emotions, which has become an essential requirement in the field of social intelligence, also expedites the progress of human-machine interactions. The ability of a machine to understand human emotion and act accordingly has been a choice of great interest in today's world. The future generations of computers thus must be able to interact with a human being just like another. For example, people who have Autism often find it difficult to talk to someone about their state of mind. This model explicitly targets the userbase who are troubled and fail to express it. Also, this model's speech processing techniques provide an estimate of the emotion in the case of poor video quality and vice-versa.
AUDIO COMPRESSION AND ITS IMPACT ON EMOTION RECOGNITION IN AFFECTIVE COMPUTING
Enabling a natural (human-like) spoken conversation with technical systems requires affective information, contained in spoken language, to be intelligibly transmitted. This study investigates the role of speech and music codecs for affect intelligibility. A decoding and encoding of affective speech was employed from the well-known EMO-DB corpus. Using four state-of-the-art acoustic codecs and different bit-rates, the spectral error and the human affect recognition ability in labeling experiments were investigated and set in relation to results of automatic recognition of base emotions. Through this approach, the general affect intelligibility as well as the emotion specific intelligibility was analyzed. Considering the results of the conducted automatic recognition experiments, the SPEEX codec configuration with a bit-rate of 6.6 kbit/s is recommended to achieve a high compression and overall good UARs for all emotions.
The main aim of this study is to recognise emotions form auditory stream, This study also aims to compare different feature selection techniques and compares results of different intelligent techniques when applied to classify different number of features. To achieve the goals of the study Existing literature available in the field of emotion recognition, signal processing, data mining and intelligent techniques was reviewed.
IRJET, 2020
While tightening and expansion of our facial muscles cause some changes called facial expressions as a reaction to the different kinds of emotional situations of our brain, similarly there are some physiological changes like tone, loudness, rhythm and intonation in our voice, too. These visual and auditory changes have a great importance for human-human interaction human-machine interaction and human-computer interaction as they include critical information about humans' emotional situations. Automatic emotion recognition systems are defined as systems that can analyze individual's emotional situation by using this distinctive information. In this study, an automatic emotion recognition system in which auditory information is analyzed and classified in order to recognize human emotions is proposed. In the study spectral features and MFCC coefficients which are commonly used for feature extraction from voice signals are firstly used, and then deep learning-based LSTM algorithm is used for classification. Suggested algorithm is evaluated by using three different audio data sets (SAVEE, RAVADES and RML).