Tong Zheng, 44Mountain View, CA

2005003, Feb 10, 2005

Aug 5, 2004

10/912472

Dennis Steindler - Gainesville FL, US
Eric Laywell - Gainesville FL, US
Tong Zheng - Gainesville FL, US

G01N033/53
G01N033/567
A61K049/00

424009200, 435007200

Methods and assay systems for analyzing effects of chemical and cellular agents on brain cell neurogenesis in vivo, comprising administering an agent to a test animal and determining responses of cells of brain marrow tissues, including irradiated brain marrow tissue depleted of neurogenic stems cells, and cells in brain marrow-derived neurospheres cultured in vitro.

6281875, Aug 28, 2001

Apr 29, 1998

9/069291

Jun Zhao - San Jose CA
Jonathan Hui - Fremont CA
Tong Zheng - Mountain View CA

Canon Kabushiki Kaisha - Tokyo

G60T 536

345136

In a method for determining a data value for a target pixel in a destination image based on data values for pixels in a source image, with the destination image being scaled relative to the source image, calculating a position in the source image based on position of a target pixel in the destination image, testing the presence of a diagonal gradient in the source image at the position determined in the calculating step, the testing step testing for the presence of a diagonal gradient by reference to values of pixels in the source image that surround the position calculated in the calculating step, responsive to the presence of a diagonal gradient in the testing step, calculating a data value for the target pixel based on interpolation of data values for diagonally-adjacent pixels in the source image, and responsive to the absence of a diagonal gradient in the testing step, calculating a data value for the target pixel based on interpolation of data values for at least all four surrounding pixels in the source image.

6075535, Jun 13, 2000

Jun 26, 1998

9/105904

Andrew Fitzhugh - Menlo Park CA
Tong Zheng - Mountain View CA
Michael Strittmatter - Los Altos CA

Hewlett-Packard Company - Palo Alto CA

G06F 1500

345352

The present invention provides a method and apparatus for visually presenting the access frequency of a two dimensional image. The method includes the steps of: determining which defined regions of the image are accessed; determining the frequency that the plurality of defined regions is accessed; creating a graphical representation corresponding to the plurality of defined regions for the image, wherein the x axis of the graphical representation corresponds to the x axis of the image and the y axis of the graphical representation corresponds to the y axis of the image; and combining the graphical representation with an access frequency indicator to create an access frequency output that corresponds to the plurality of defined regions. From the access frequency output, the user can see the access patterns of the image and can easily visualize how frequently small portions of the image are accessed.