Images of in this moment3/1/2023 Compared with six state-of-arts methods, the proposed framework demonstrates a superior performance. Experiments on the CK+ and MMI datasets using leave-one-out cross validation scheme demonstrate that the integrated framework achieves a better performance than using individual descriptor separately. To recognise a facial expression, a weighting strategy based on the latter feature and sub-division of the image frame is applied to the former to enhance the dynamic information of facial expression, and followed by the application of the classical support vector machine. We also design a dynamic feature comprising motion history image and entropy. In this paper we focus on basic emotion recognition and propose a spatio-temporal feature based on local Zernike moment in the spatial domain using motion change frequency. The current two main approaches to the recognition are basic emotion recognition and recognition based on facial action coding system (FACS) action units. A dynamic descriptor facilitates robust recognition of facial expressions in video sequences. Cobalt is launching a photography competition from which twelve images will be selected for a 2022 calendar, copies of which will be sold to raise funds.
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