Systems and methods for processing image information
First Claim
1. A method for processing image information, the method comprising:
- receiving a first data set representative of a cross-polarized image of a scene, wherein subject matter is illuminated to substantially avoid shadows in the cross-polarized image to provide a diffuse surface texture;
receiving a second data set representative of a co-polarized image of substantially the same scene illuminated to substantially avoid shadows in the co-polarized image; and
performing a difference blend operation with the first data set and the second data set to provide an isolated-specular surface texture,wherein an image-capture system applies a first illumination power to illuminate the scene in coordination with an exposure that generates the cross-polarized image,wherein the image-capture system applies a second illumination power different from the first illumination power to illuminate the scene in coordination with a second exposure that generates the co-polarized image,wherein an elapsed time between separate exposures that generates the cross-polarized image and the co-polarized image is controlled.
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Accused Products
Abstract
Paired images of substantially the same scene are captured with the same freestanding sensor. The paired images include reflected light illuminated with controlled polarization states that are different between the separate images. A first pixel value from one of the first image and the second image is subtracted from a corresponding pixel value from a remaining one of the first image and the second image. When repeated over the raster of corresponding pixels, a modified image includes an isolated representation of substantially pure specular color data. The captured images and the modified image are stored and used to generate a model. Substantially shadow-free diffuse color and specular color data are applied to texture maps of the model to generate a virtual environment where a virtual light source can be introduced and controlled to achieve desired results absent adverse effects introduced from fixed ambient light sources used in conventional source photography.
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Citations
14 Claims
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1. A method for processing image information, the method comprising:
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receiving a first data set representative of a cross-polarized image of a scene, wherein subject matter is illuminated to substantially avoid shadows in the cross-polarized image to provide a diffuse surface texture; receiving a second data set representative of a co-polarized image of substantially the same scene illuminated to substantially avoid shadows in the co-polarized image; and performing a difference blend operation with the first data set and the second data set to provide an isolated-specular surface texture, wherein an image-capture system applies a first illumination power to illuminate the scene in coordination with an exposure that generates the cross-polarized image, wherein the image-capture system applies a second illumination power different from the first illumination power to illuminate the scene in coordination with a second exposure that generates the co-polarized image, wherein an elapsed time between separate exposures that generates the cross-polarized image and the co-polarized image is controlled. - View Dependent Claims (2, 3)
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4. A method for processing image information, the method comprising:
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receiving a sensor orientation, the sensor orientation defining a sensor axis; receiving a data set responsive to a cross-polarized exposure, wherein subject matter captured in the cross-polarized exposure is illuminated with light provided substantially on-axis with the sensor axis to provide a diffuse-surface texture; using the data set and the sensor orientation to generate a UV map; and receiving information representative of a surface geometry of the subject matter, wherein using further includes applying color information from the data set over the surface geometry. - View Dependent Claims (5, 6, 7, 8)
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9. A method for processing image information, the method comprising:
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receiving a render mesh responsive to a data set generated from a cross-polarized exposure illuminated to reduce shadows in the cross-polarized exposure, the render mesh including a representation of a surface geometry; receiving an orientation of a surface texture from the data set; receiving the surface texture used to generate the representation of the surface geometry; receiving at least one UV map responsive to the render mesh, the orientation of the surface texture and the surface texture used to generate the representation of the surface geometry; generating a virtual environment from the render mesh and the at least one projection map; receiving a preferred orientation; and modifying the virtual environment in response to the preferred orientation. - View Dependent Claims (10, 11, 12, 13, 14)
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Specification