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Human language technologies Data Collections & Studies WP4- Emotions: Faces.

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Presentation on theme: "Human language technologies Data Collections & Studies WP4- Emotions: Faces."— Presentation transcript:

1 human language technologies Data Collections & Studies WP4- Emotions: Faces

2 Data Collections & Studies WP4 – Emotions: Faces Collection and annotation of audio-visual databases extensive data collection, both at KTH and ISTC/IRST – using opto-electronic systems reflective markers placed on the subject’s face capturing of dynamics of emotional facial expressions with very high precision. eliciting technique: using movies to elicit facial expressions denoting emotions on watching subjects  attempted – not promising extraction technique: extract expressive behaviour directly from movies and television talk-shows  attempted – not promising

3 Data Collections & Studies WP4 – Emotions: Faces KTH - first year DATABASE 1 15 emotions and attitudes were recorded (acted) anger, fear, surprise, sadness, disgust, happiness, worry, satisfaction, insecurity, confidence, questioning, encouragment, doubt, confirmation and neutral Semantically neutral utterances, 9 utterances per expression DATABASE 2 6 emotional states confident, confirming, questioning, insecure, happy, neutral VCV & VCCV nonsense words CVC nonsense words Short sentences Common ITA-SWE set (abba, adda, alla, anna, avva) DATABASE 3 Spontaneous dialogue

4 Data Collections & Studies WP4 – Emotions: Faces Collection of audio-visual databases: interactive dialogues (KTH)  Eliciting technique: information seeking scenario  Focus on the speaker who has the role of information giver  The speaker whose facial and head motion is to be recorded seats facing 4 infrared cameras, a digital video- camera,a microphone and his/her interlocutor.

5 Data Collections & Studies WP4 – Emotions: Faces ISTC & IRST - first year 6 emotional states (Ekman’s set) + Neutral – Anger, Disgust, Fear, Happiness, Sadness, Surprise – 3 intensities (Low, Medium, High) “isolated” emotional expressions VCV nonsense words (aba, ada, aLA, adZa, ala, ana, ava) – good phonetic coverage of Italian Long sentence (“Il fabbro lavora con forza usando il martello e la tenaglia” – “the smith works with strength using the hammer and the pincer”) common ITA-SWE set (VCCV nonsense words: abba, adda, alla, anna, avva) “concatenated” emotional expressions VCV nonsense words, in pairs, with different emotions e.g. (aba) Neutral – (aba) Happy

6 Data Collections & Studies WP4 – Emotions: Faces Results ISTC/IRST: 1573 recordings – 798 single emotional expressions (7 emotional states, 3 intensities – L, M, H) – 672 concatenated emotional expressions (in pairs, 3 emotional states - Anger, Happy, Neutral - medium intensity) – 57 long sentences (7 emotional states, 3 intensities) – 46 instances of the common ITA-SWE set (3 emotional states, medium intensity) KTH: 1749 recordings (database 2) – 828 VCV words (138 x 6 emotional states) – 246 CVC words (41 x 6 emotional states) – 645 sentences (270 neutral + 75 x 5 emotional states) – 30 instances of the common ITA-SWE set Total: 3322 recordings

7 Data Collections & Studies WP4 – Emotions: Faces Qualisys recordings: Swedish db – 2nd year 75 sentences with Ekman’s 6 basic emotions + neutral Dialogues to analyze communicative facial expressions: – 10 short dialogues in a travel agency scenario 15 sentences uttered with a focussed word, with the 6 expressions used in corpus 2 + anger Example: Båten seglade förbi Båten seglade förbi

8 Data Collections & Studies WP4 – Emotions: Faces Short videos containing acted kinetic facial expressions (video length: 4-27 secs.) 8 professional actors (4 male and 4 female). Each actor played Ekman’s set of six emotions (happy, sad, angry, surprised, disgusted, afraid) + neutral Actors were asked to play each emotion on three intensity levels (Low -Medium – High) Total: 1008 short videos (= ~ 2h 50’) Audio-Visual Italian Database – 2nd year (IRST) : A database of human facial expressions (1) See Poster!!!

9 Data Collections & Studies WP4 – Emotions: Faces A database of human facial expressions (2)  Facial expressions recorded in two conditions: 1. “utterance” condition: actors played emotions while uttering a phonetically rich and visemically balanced sentence. 2. “non utterance” condition: actors played emotions without pronouncing any sentence.  Both video and audio signals were recorded.  After collecting the corpus: Data Selection – Validation of the emotions played – Video selection based on the accordance among judges. “In quella piccola stanza vuota c’era pero’ soltanto una sveglia”,, See Poster!!!,

10 Data Collections & Studies WP4 – Emotions: Faces Annotation of audio-visual databases: interactive dialogues ANVIL: tool for the analysis of digitized audio-visual data Orthographic transcription of the dialogue Annotation of the facial expressions related to emotions and of the communicative gestures (turn-taking, feedback and so on) The annotation is performed on a freely definable multi- layered annotation scheme, created ad hoc for the specific purposes. These levels go from a less detailed to a more detailed analysis Annotation is performed on several main tracks, which are displayed, on the screen in alignment with the video and audio data

11 Data Collections & Studies WP4 – Emotions: Faces Annotation (cont’d) glad

12 Data Collections & Studies WP4 – Emotions: Faces Evaluation Studies (IRST) Experiment 1: Comparison of emotion recognition rates from natural (actor) videos with different types of synthetic (synthetic face) videos, in different animation conditions [reference person: Fabio Pianesi – Experiment 2: Cross-cultural comparison of emotion recognition rates from Italian and Swedish natural and synthetic videos [reference person: Fabio Pianesi – Experiment 3: as for Experiment 1 but using – three regions of the face – only one animation condition (script based) [reference person: Michela Prete –

13 Data Collections & Studies WP4 – Emotions: Faces Papers on Evaluation Studies J. Beskow, L. Cerrato, P. Cosi, E. Costantini, M. Nordstrand, F. Pianesi, M. Prete, G. Svanfeldt, "Preliminary Cross-cultural Evaluation of Expressiveness in Synthetic Faces". In E. André, L. Dybkiaer, W. Minker, P. Heisterkamp (eds.) "Affective Dialogue Systems", ADS '04, Springer Verlag. Berlin, E. Costantini, F. Pianesi, P. Cosi, "Evaluation of Synthetic Faces: Human Recognition of Emotional Facial Displays ". In E. André, L. Dybkiaer, W. Minker, P. Heisterkamp (eds.) "Affective Dialogue Systems". Springer Verlag, Berlin, 2004 E. Costantini, F. Pianesi, M. Prete "Recognising Emotions in Human and Synthetic Faces: The Role of the Upper and Lower Parts of the Face". To appear in Proceedings of IUI 2005: International Conference on Intelligent User Interfaces. San Diego, California, 2005.


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