CABA MOLDVAI
Pilots at Borica Ct, Pleasanton, CA
License number
California A4727727
Issued Date
Jan 2015
Expiration Date
Jan 2016
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
5111 Borica Ct, Pleasanton, CA 94568
Professional information
Method Of Generating Transfer Curves For Adaptive Contrast Enhancement
US Patent:
2006008, Apr 20, 2006
Filed:
Jan 26, 2005
Appl. No.:
11/044774
Inventors:
Caba Moldvai - Dublin CA, US
International Classification:
G09G 3/30, H04N 5/52
US Classification:
348678000, 345077000
Abstract:
Disclosed is a method for generating transfer curves for adaptive contrast enhancement. Transfer curves are generated so as to enhance the bright pixels in mostly dark images and the dark pixels in mostly bright images. For a dark image, a transfer curve is generated which increases luminance in high-luminance regions of the image without substantially changing the luminance in the mid- and low-luminance regions of the image. For a bright image, a transfer curve is generated which decreases the luminance in the dark areas of the image without substantially changing the luminance in the mid- and high-luminance regions of the image. For a medium-bright image, a transfer curve is generated with increases the luminance in the high-luminance range and decreases the luminance in the low-luminance range of the histogram without substantially changing the luminance in the medium-luminance range of the image.
System And Method For Light Compensation In A Video Panel Display
US Patent:
8610781, Dec 17, 2013
Filed:
Nov 1, 2012
Appl. No.:
13/666024
Inventors:
Zhao Huang - San Jose CA, US
Greg Neal - Morgan Hill CA, US
Caba Moldvai - Dublin CA, US
Greg Neal - Morgan Hill CA, US
Caba Moldvai - Dublin CA, US
Assignee:
STMicroelectronics, Inc. - Coppell TX
International Classification:
H04N 17/00
US Classification:
348191, 348189
Abstract:
A system for adjusting the light uniformity of a monitor. The system comprises a camera for capturing a test pattern image on a display of the monitor and a controller configured to select the test pattern image and to cause the monitor to display the selected test pattern image. The controller receives the captured image from the camera and compares pixel values from the captured image to known pixel values associated with the selected test pattern image. The selected test pattern image has an ideal uniform light distribution and the captured image has a non-uniform light distribution. In response to the comparison, the controller calculates a compensation light distribution that may be combined with the non-uniform light distribution to generate a resulting image on the display of the monitor having a resulting light distribution that approximates the ideal uniform light distribution.
Systems And Methods For Color Control Of Display Devices
US Patent:
7969449, Jun 28, 2011
Filed:
Oct 17, 2007
Appl. No.:
11/874167
Inventors:
Caba Moldvai - Dublin CA, US
Mathew D. Halfant - San Jose CA, US
Zisheng Le - San Jose CA, US
Mathew D. Halfant - San Jose CA, US
Zisheng Le - San Jose CA, US
Assignee:
Tamiras Per Pte. Ltd., LLC - Dover DE
International Classification:
G09G 3/30, G09G 5/00, G09G 5/02, H04N 5/57, H04N 9/73, H04N 1/46, G06K 9/00, G09G 1/28, G06T 11/20, H04N 9/64, G03F 3/08, G06K 9/20
US Classification:
345589, 345581, 345619, 345428, 345 77, 348242, 348602, 348655, 348687, 358504, 358509, 358519, 382165, 382169, 382312
Abstract:
Various techniques for implementing aspects of color control in display devices are disclosed. One exemplary technique includes measuring an input/output profile of a display, then applying a mathematical model to the display's measured profile to generate color control tables. One exemplary technique may include tracking a first color temperature below a high-luminosity transition point and gradually transitioning to tracking a second color temperature above the high-luminosity transition point. One exemplary technique may also include gradually transitioning from tracking a darklight color temperature below a low-luminosity transition point to tracking the first color temperature above the low-luminosity transition point. Another exemplary technique may include tracking a response curve for a specified chromaticity above a low-luminosity transition point.
Adaptive Contrast Enhancement
US Patent:
7760961, Jul 20, 2010
Filed:
Jan 26, 2005
Appl. No.:
11/044755
Inventors:
Caba Moldvai - Dublin CA, US
International Classification:
G06K 9/40
US Classification:
382274, 382254, 382162
Abstract:
Disclosed is a method for generating transfer curves for adaptive contrast enhancement. Given an input image, a luminance histogram is generated based on a set of predefined input luminance ranges. The luminance histogram is then expressed as a weighted sum of a set of predefined “primitive” histograms. Each primitive histogram has an associated reference transfer curve. A final transfer curve is produced as a corresponding weighted sum of the associated reference transfer curves. The image luminance can then be adjusted according the to the final transfer curve, resulting in enhanced image contrast. The disclosed method enables expansion of the number of available reference transfer curves without increasing the number of luminance ranges.