Color image display system

• US 20040233213A1
• Filed: 12/17/2003
• Published: 11/25/2004
• Est. Priority Date: 05/31/1999
• Status: Abandoned Application

• Current Assignee: Kenro Ohsawa
• Original Assignee: Kenro Ohsawa
• Inventors: Ohsawa, Kenro
• Application Number:
  US10/738,337
• Publication Number:
  US 20040233213A1
• Time in Patent Office: Days
• US Class Current: 345/589
• CPC Class Codes: H04N 9/12 Picture reproducers H04N9/11 takes precedence
• CPC Class Codes: H04N 9/3147 Multi-projection systems displays in general H04N9/12; video walls G06F3/1446, G09G2300/026

Abstract

An image data conversion apparatus includes color correction units for correcting the difference in color reproduction characteristic between projectors, bias correction units for correcting the bias so as to display partial color images on a predetermined set bias, data distribution units for distributing image data to display, at a predetermined ratio, the partial color images contained in the overlap region between the partial color images, and nonuniformity correction units for correcting color nonuniformities in the partial color images.

Claims

1-14. -14. (canceled).

15. A color image display system comprising:

a plurality of partial color image display means for displaying partial color images to be synthetically displayed as a color image of one frame, on the basis of partial color image data; and

image data conversion means for converting input color image data into said partial color image data on the basis of color reproduction characteristics of said plurality of partial color image display means.

17. A color image display system comprising:

a plurality of partial color image display means for displaying partial color images to be synthetically displayed as a color image of one frame, on the basis of partial color image data; and

image data conversion means for converting input color image data into said partial color image data so as to display the partial color images to be synthetically displayed as a color image of one frame superimposed on a predetermined set bias on the basis of color reproduction characteristics of said plurality of partial color image display means.

22. A color image display system comprising:

a plurality of partial color image display means for displaying partial color images to be synthetically displayed as a color image of one frame, on the basis of partial color image data; and

image data conversion means for converting input color image data into said partial color images so as to display, at a predetermined ratio set according to the position in an overlap region, the partial color image contained in the overlap region between the partial color images displayed by said partial color image display means on the basis of color reproduction characteristics of said plurality of partial color image display means.

23. A color image display system comprising:

a plurality of partial color image display means for displaying partial color images to be synthetically displayed as a color image of one frame, on the basis of partial color image data; and

image data conversion means for converting input color image data into said partial color image data so as to correct nonuniformities in the color images synthetically displayed by said partial color image display means on the basis of color reproduction characteristics of said plurality of partial color image display means.

24. A color image display system comprising:

a plurality of partial color image display means for displaying partial color images to be synthetically displayed as a color image of one frame, on the basis of partial color image data; and

image data conversion means for converting input color image data into the partial color image data on the basis of color reproduction characteristics of said plurality of partial color image display means,

wherein said partial color image display means display the partial color images in an overlap region between the partial color images displayed by said partial color image display means with display luminance lower physically than in a remaining region.

25. A color image display system, comprising:

a plurality of partial color image display means for displaying partial color images to be synthetically displayed as a color image of one frame, on the basis of partial color image data; and

image data conversion means for converting input color image data into the partial color image data on the basis of characteristics of the plurality of partial color image display means,

wherein the image data conversion means for the input color image data comprises;

color correction means for correcting a color;

geometric correction means for correcting geometric;

bias correction means for correcting a bias;

nonuniformity correction means for correcting nonuniformity; and

tone-curve correction means for correcting a tone-curve.