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Class Information
Number: 382/255
Name: Image analysis > Image enhancement or restoration > Focus measuring or adjusting (e.g., deblurring)
Description: Subject matter wherein the focal length between an image sensor and an object being sensed is either measured or adjusted in order to correct distortions such as blurring.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6504958 |
Optical device |
Jan. 7, 2003 |
| 6483948 |
Microscope, in particular a stereomicroscope, and a method of superimposing two images |
Nov. 19, 2002 |
| 6470097 |
Total variational blind image restoration from image sequences |
Oct. 22, 2002 |
| 6433325 |
Apparatus and method for image enhancement |
Aug. 13, 2002 |
| 6416959 |
System for cell-based screening |
Jul. 9, 2002 |
| 6341180 |
Image content autofocus for microscopy using a noise-insensitive focus filter |
Jan. 22, 2002 |
| 6341179 |
Method and apparatus for imaging artefact reduction |
Jan. 22, 2002 |
| 6330371 |
Adaptive non-uniformity compensation using feedforward shunting and min-mean filter |
Dec. 11, 2001 |
| 6320979 |
Depth of field enhancement |
Nov. 20, 2001 |
| 6282324 |
Text image deblurring by high-probability word selection |
Aug. 28, 2001 |
| 6268611 |
Feature-free registration of dissimilar images using a robust similarity metric |
Jul. 31, 2001 |
| 6243498 |
Adaptive non-uniformity compensation using feedforwarding shunting |
Jun. 5, 2001 |
| 6233349 |
Apparata and methods of analyzing the focal spots of X-ray tubes |
May. 15, 2001 |
| 6229928 |
Image processing system for removing blur using a spatial filter which performs a convolution of image data with a matrix of no-neighbor algorithm based coefficients |
May. 8, 2001 |
| 6222583 |
Device and system for labeling sight images |
Apr. 24, 2001 |
| 6215914 |
Picture processing apparatus |
Apr. 10, 2001 |
| 6166853 |
Method and apparatus for three-dimensional deconvolution of optical microscope images |
Dec. 26, 2000 |
| 6154574 |
Digital focusing method and apparatus in image processing system |
Nov. 28, 2000 |
| 6151415 |
Auto-focusing algorithm using discrete wavelet transform |
Nov. 21, 2000 |
| 6148113 |
System for stimulating the depth of field of an image in two dimensional space and method of operation |
Nov. 14, 2000 |
| 6148112 |
Digital image correction device and display device |
Nov. 14, 2000 |
| 6130958 |
Method for reconstructing the image of an object scanned with a laser imaging apparatus |
Oct. 10, 2000 |
| 6108454 |
Line contrast difference effect correction for laser line scan data |
Aug. 22, 2000 |
| 6108435 |
Method of detecting phase difference between a pair of images |
Aug. 22, 2000 |
| 6069738 |
Apparatus and methods for extending depth of field in image projection systems |
May. 30, 2000 |
| 6067377 |
Color image forming apparatus |
May. 23, 2000 |
| 6028606 |
Camera simulation system |
Feb. 22, 2000 |
| 6014455 |
Projection exposure apparatus and device manufacturing method |
Jan. 11, 2000 |
| 6009189 |
Apparatus and method for making accurate three-dimensional size measurements of inaccessible objects |
Dec. 28, 1999 |
| 5999661 |
Image processing method and system |
Dec. 7, 1999 |
| 5982939 |
Enhancing texture edges |
Nov. 9, 1999 |
| 5974190 |
Photographed image reproducing apparatus |
Oct. 26, 1999 |
| 5974159 |
Method and apparatus for assessing the visibility of differences between two image sequences |
Oct. 26, 1999 |
| 5956421 |
Image processing method and apparatus for determining a binarization threshold value used for binarizing a multi-valued image and performing binarization processing |
Sep. 21, 1999 |
| 5953440 |
Method of measuring the focus of close-up images of eyes |
Sep. 14, 1999 |
| 5940537 |
Method and system for compensating for geometric distortion of images |
Aug. 17, 1999 |
| 5933513 |
Image processing system for expanding focal depth of optical machine |
Aug. 3, 1999 |
| 5931960 |
Method and apparatus for handling error diffusion values |
Aug. 3, 1999 |
| 5915048 |
Method and apparatus for discriminating in-focus images from out-of-focus light signals from background and foreground light sources |
Jun. 22, 1999 |
| 5915047 |
Image pickup apparatus |
Jun. 22, 1999 |
| 5903659 |
Adaptive non-uniformity compensation algorithm |
May. 11, 1999 |
| 5883982 |
Astigmatism measurement apparatus and method based on a focal plane separation measurement |
Mar. 16, 1999 |
| 5878152 |
Depth from focal gradient analysis using object texture removal by albedo normalization |
Mar. 2, 1999 |
| 5862265 |
Separation apparatus and method for measuring focal plane |
Jan. 19, 1999 |
| 5835641 |
Image pick-up apparatus for detecting and enlarging registered objects |
Nov. 10, 1998 |
| 5825938 |
System and method for enhancing the sharpness of a colour image |
Oct. 20, 1998 |
| 5822466 |
Method and means of spatial filtering |
Oct. 13, 1998 |
| 5793900 |
Generating categorical depth maps using passive defocus sensing |
Aug. 11, 1998 |
| 5790710 |
Autofocus system for scanning microscopy |
Aug. 4, 1998 |
| 5774237 |
Image reading apparatus |
Jun. 30, 1998 |
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