Sök i LIBRIS databas

  Utökad sökning


Sökning: onr:"swepub:oai:lup.lub.lu.se:2187301" > Improved curvature-...

Improved curvature-based inpainting applied to fine art: Recovering van Gogh's partially hidden brush strokes

Kuang, Yubin (författare)
Stork, David G. (författare)
Kahl, Fredrik (författare)
Lunds universitet Gemensamma institutioner för naturvetenskapliga och tekniska fakulteterna. Matematikcentrum. Matematik LTH och numerisk analys. 
Ingår i: Computer Vision and Image Analysis of Art II. - SPIE. - 0277-786X .- 1996-756X. ; 7869
  • Konferensbidrag (refereegranskat)
Abstract Ämnesord
  • Underdrawings and pentimenti-typically revealed through x-ray imaging and infrared reflectography-comprise important evidence about the intermediate states of an artwork and thus the working methods of its creator.(1) To this end, Shahram, Stork and Donoho introduced the De-pict algorithm, which recovers layers of brush strokes in paintings with open brush work where several layers are partially visible, such as in van Gogh's Self portrait with a grey felt hat.(2) While that preliminary work served as a proof of concept that computer image analytic methods could recover some occluded brush strokes, the work needed further refinement before it could be a tool for art scholars. Our current work makes several steps to improve that algorithm. Specifically, we refine the inpainting step through the inclusion of curvature-based constraints, in which a mathematical curvature penalty biases the reconstruction toward matching the artist's smooth hand motion. We refine and test our methods using "ground truth" image data: passages of four layers of brush strokes in which the intermediate layers were recorded photographically. At each successive top layer (currently identified by the user), we used k-means clustering combined with graph cuts to obtain chromatically and spatially coherent segmentation of brush strokes. We then reconstructed strokes at the deeper layer with our new curvature-based inpainting algorithm based on chromatic level lines. Our methods are clearly superior to previous versions of the De-pict algorithm on van Gogh's works giving smoother, natural strokes that more closely match the shapes of unoccluded strokes. Our improved method might be applied to the classic drip paintings of Jackson Pollock, where the drip work is more open and the physics of splashing paint ensures that the curvature more uniform than in the brush strokes of van Gogh.


NATURVETENSKAP  -- Matematik (hsv//swe)
NATURAL SCIENCES  -- Mathematics (hsv//eng)


Vincent van Gogh
curvature-based inpainting
Self portrait in a grey
felt hat
chromatic level lines
brush stroke recovery

Publikations- och innehållstyp

kon (ämneskategori)
ref (ämneskategori)

Hitta via bibliotek

Till lärosätets databas

Hitta mer i SwePub

Av författaren/redakt...
Kuang, Yubin
Stork, David G.
Kahl, Fredrik
Om ämnet
och Matematik
Artiklar i publikationen
Computer Vision ...
Av lärosätet
Lunds universitet

Sök utanför SwePub

pil uppåt Stäng

Kopiera och spara länken för att återkomma till aktuell vy