Glossary: Difference between revisions

    From Ban Covert Modeling! wiki
    (linked BRDF to Wikipedia article on it)
    (+ == Light stage ==)
    Line 13: Line 13:
    * Covertly modeling the human voice
    * Covertly modeling the human voice
    There is work ongoing to model e.g. human's style of writing, but this is probably not as drastic a threat as the covert modeling of appearance and of voice.
    There is work ongoing to model e.g. human's style of writing, but this is probably not as drastic a threat as the covert modeling of appearance and of voice.
    ----
    == Light stage ==
    A '''[[w:light stage]]''' or '''light cage''' is equipment used for [[w:3D modeling|shape]], [[w:texture mapping|texture]], reflectance and [[w:motion capture|motion capture]] often with [[w:structured light|structured light]] and a [[w:multi-camera setup|multi-camera setup]]. (Wikipedia)

    Revision as of 16:44, 2 April 2019

    Bidirectional reflectance distribution function

    w:Bidirectional reflectance distribution function or BRDF is a 7D model containing geometry, textures and reflectance of the subject.

    The seven dimensions of the BRDF are as follows: 3 cartesian X,Y,Z and 2 for the entry angle and 2 for the exit angle of the light.


    Covert modeling

    Covert modeling refers to both covertly modeling aspects of a subject i.e. without express consent.

    Main known cases are

    • Covertly modeling the human appearance into 7-dimensional [[#Bidirectional reflectance distribution function|]] model or other type of model.
    • Covertly modeling the human voice

    There is work ongoing to model e.g. human's style of writing, but this is probably not as drastic a threat as the covert modeling of appearance and of voice.


    Light stage

    A w:light stage or light cage is equipment used for shape, texture, reflectance and motion capture often with structured light and a multi-camera setup. (Wikipedia)