( The english version is incomplet and translated by software and not yet corrected . Sorry .
French version is better . )
End of the page (to be able to change heading for
without frames).
Since 1990 to 2003, my semi-annual courses (vacation), at IPT
Universite Paris 8 . [ Owner of this class(course) ]
(For students of "deug" in Visual arts, etc...)
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In this page, there are 3 parts :
- Caracteristiques and Specificites .
- Application and Classification .
- Animation .
Caracteristiques and Specificites
- the objects in the image calculee can be transform and handle
has will;
- the image is stored in the form of numeric code in the memory
of the computer, of or the possibility of duplicating it quickly and
of communicating it at long distance via the network of
telecommunication (Internet);
- possibility of recombining of all the components of the
image;
- possibility of creation per stage, to record each stage. It
is thus possible to carry out tests with the " right has the error ";
- creation has distance via the telecommunication;
- visualization of objects and phenomena not existing or
impossible A representer in reality;
- visualization in all the aspects;
- the materials of creation of the images calculee are "
information ", which is contained in the mathematic modeles. One
handles information for creer;
- the support of visualization is distinct from the storage
medium;
- possibility of correcting what one has already cree for a
certain time;
- the image can be creee with million colors (currently more
than 16.7 million);
- concept of " virtual reality " (immersive technology);
- the model and the scene can not exist reellement;
- all information in the image is apportees there;
- etc...
Classifications and Applications
Typify images calculees :
- Image calculee 3D :
- Nature : The objects of the image are factories and they are free and independants.
Possibilite of penetrer in the object.
- Methodologie : Creation in the geometrie of the space.
Construction of object volumique by equations and algorithms of creation 3D.
- Example : a sphere.
- Image calculee 2D :
- Nature : The objects of the image are bound(connected) to the support of display
(visualization) (surface).
Impossibilite of penetrer in the object.
- Methodologie :
- Vectorielle :
- Creation in the geometrie glides. Construction of flat object by equations.
Protect parametres of construction.
- Example : a circle.
- Matrix ( bitmap ) :
- Direct Creation pixel has pixel by algorithms to draw.
Protection of all the image.
- Example : drawing has hand levee.
- Scannerisee ( digitalisee ) : Scanner an image (photo), then treatment numerique.
- Note :
Image calculee (numerical) is an image into mosaic formee of
pixels.
One calls Composite Image, a combination of
the images calculees and images reelles.
One calls Image processing, the
modification and the analysis of the images digitalisees.
Within the framework of the analysis, one seeks has to
extract some from information. Like applicability of the image
processing, one can quote: the teledetection, pattern recognition,
the function vision in robotics, etc
- Three dimensions
- Images calculees 3D:
- Artistic and esthetic:
Art, publicity, television, cinema, decoration, architecture,
town planning, logo, generic, etc
- Formation and communication:
Simulators, communication of company, teaching of sciences
(EAO), etc
- C A O then F A O:
- Calculation of the structures and techniques:
Analysis mecanic, thermodynamic, aerodynamic, building,
robotics, etc
- Studies of the forms:
Design, clothing, prostheses dental, seen eclatees
(draftsmanship), etc
- Scientific visualizations 3D:
- Physics: meteorology, astronomy, physical nucleaire, etc
- Medicine: human body, etc
- Chemistry: molecules, etc
- Botany: plants, etc
- Two dimension (image punt):
- Images calculees 2D (pallet):
- Artistic and esthetic:
Illustration, graphic art, television, cinema, fabric,
clothing, hairstyle, clips, etc
- Cartography, color filling, logo, pictogram, etc
- Simulation, diagram of representation (flow chart), etc
- D A O:
Draftsmanship, plans in architecture, diagram, drawing have
hand levee, etc
- Schematiques:
Electronic circuits, schemas of microprocessors, etc
- Visual representation of data (graphics packages):
- Simple business graphic (histogram, pie-chart, etc)
- Graph in 2D 1/2 (pseudo 3D or pseudo prospect)
- Scientific visualization 2D:
- Theorie of chaos: swirl, flow, etc
- Medicine (anatomy): Image scanner, NMR, echography, etc
- Images digitalisees:
Improve and faking photographic, effects special, etc
- Abreviation utilisees:
- E A O: Teaching Assists by Computer.
- R MR. N: Resonance Magnetique Nucleaire.
- C A O: Assistee design by Computer.
- F A O: Assistee manufacture by Computer.
- D A O: Drawing assists by Ordinateur.
Animation
Animation in image calculee is done on the 3 elements of
space infographic:
the objects, the lights and will cameras them.
The contents of an animation in image calculee comprise
components Multimedia (text, image and its).
The scenario, the setting in scene are in connection with the
specific contents of the image calculee.
- Methodology of animation.
- Mecanique and Dynamique.
- 3 parameters of animation:
- Trajectory:
- Seized with sensors.
- Calculation of the equations.
- Time.
- Speed.
- Animations of the objects are obtained by:
- Concept of the " key images ":
Application of the interpolation and geometrical
transformation.
- Application of the equations and the algorithms.
(motion blur, cinematic reverse, etc).
- Methodology of the Artificial Intelligence.
(behavioral method, etc).
- Metamorphose and Deformation
Interpolation on the elements of space infographic.
- Subjects:
- Form and geometrie.
- Texture and colouring.
- Lights:
Interpolation of the Intensities of the lights.
- Presentation of animation.
- Sequentielle:
- Movement:
- A succession of images in a logical prolongation of a
movement realist. (scenario).
- Cinema, publicity, film of demonstration and presentation,
video, etc.
- Defilement:
- Presentation of a succession of images.
- Diaporama, clips, etc.
- Interactive:
- Interactive, adj = Qualifies the hardware, the programs or
the conditions of operating which allow reciproques actions in
conversational mode with users or time reel with apparatuses.
- Cd rom, plays videos, simulators, interactive terminals,
Internet, etc.