Ding & Martinez[68], 2010 Face components are found via Subclass Determinant Analysis, where multiple models for the target component, eyes and mouth are developed; the context is the subspace representation of the regions surrounding the components.
Moreover, instead of raw pixels, we describe the face using LBP face components: eye, nose, mouth, and chin.
In this work, the CCA learns the mapping between frontal and profile faces represented by their main components: eye, nose, mouth, and chin.
We use a multi-state face model for facial features extraction and AU classification, similar to the one presented in our previous work [54], dividing the face into five components: eye component, cheek component, brow component, wrinkles component, and lips component.
In such cases, a 3-component eye model (Fig. 7) may be most appropriate.
The first principal component (PC 1) explains most of the variance in the data (98.96%), and is characterized by nearly identical loading on its three components (eye diameter: -0.579, axial length: -0.576, and lens diameter: -0.577; Table 1).
The FOUR (Full Outline of UnResponsiveness) score, a coma scale consisting of four components (eye response, motor response, brainstem reflexes, and respiration pattern) was recently proposed by investigators from the Mayo Clinic [ 8].
A delayed ischaemic neurological deficit was defined as the occurrence of focal neurological impairment (such as hemiparesis, aphasia, apraxia, hemianopia or neglect), or a decrease of at least two Glasgow Coma Scale points [either on the total score or on one of its individual components (eye, motor on either side, verbal)].
A delayed ischaemic neurological deficit was defined as the occurrence of focal neurological impairment (such as hemiparesis, aphasia, apraxia, hemianopia or neglect), or a decrease of at least 2 points on the Glasgow Coma Scale [either on the total score or on one of its individual components (eye, motor on either side, verbal)].
In 2005, Wijdicks and colleagues proposed a new coma scale, the Full Outline of Unresponsiveness (FOUR) scale [ 2], which consists of four components (eye, motor, brainstem, and respiration), each component having a maximal score of 4. Our objective was to validate the French version of the new FOUR coma scale in a general ICU and to assess its predictive value as compared with the GCS.
The usually extracted facial features are either geometric features such as the shapes of the facial components (eyes, mouth, etc).
