Unique method for performing zoom-in and zoom-out operations with horizontal and vertical video decimation within a wireless device having a video display

Abstract

A method of presenting a selected portion of graphical images within a wireless terminal that includes receiving an original graphical image, having a source resolution, to be presented on a display screen. The native pixel resolution of the display screen may differ from that of the original graphical image. A complex decimation pattern when applied to the selected portion of the image allows the selected portion of the original graphical image to be resized from the source resolution to a decimated resolution operable to be displayed within the native resolution of the display screen. Decimated pixels need not be further processed to reduce the processing requirements imposed on the system processor. Operations normally associated with the decimated portions of the image may be offloaded from the processing module to improve system efficiency.

1 . A method comprising:
 determining a first pixel resolution for a received image, in which the first pixel resolution is a resolution set by a source sending the received image;   determining a second pixel resolution which is available for displaying an image on a display, in which the first pixel resolution is of a different resolution than the second pixel resolution;   decimating the received image to obtain a complex decimated image of the received image at a selected resolution to display the complex decimated image on the display; and   displaying the complex decimated image on the display.   
   
   
       2 . The method of  claim 1 , further comprising discarding unused decimated portions of the received image not to be displayed on the display. 
   
   
       3 . The method of  claim 1 , wherein the decimating the received image is applied only to select columns of pixels to obtain the complex decimated image. 
   
   
       4 . The method of  claim 1 , wherein the decimating the received image is applied only to select rows of pixels to obtain the complex decimated image. 
   
   
       5 . The method of  claim 1 , wherein the decimating the received image is applied to both select columns of pixels and select rows pixels to obtain the complex decimated image. 
   
   
       6 . The method of  claim 1 , wherein the complex decimated image has a repeating integer pattern of a selected aspect ratio and wherein the complex decimated image is obtained by decimating horizontal lines of pixels based on the aspect ratio. 
   
   
       7 . The method of  claim 1 , wherein the complex decimated image has a repeating integer pattern of a selected aspect ratio and wherein the complex decimated image is obtained by decimating vertical lines of pixels based on the aspect ratio. 
   
   
       8 . The method of  claim 1 , wherein the complex decimated image has a repeating integer pattern of a selected aspect ratio and wherein the complex decimated image is obtained by decimating both horizontal and vertical lines of pixels based on the aspect ratio. 
   
   
       9 . The method of  claim 1 , wherein the source of the received image is a camera and wherein the received image from the camera is processed for viewing on the display. 
   
   
       10 . The method of  claim 1 , wherein the complex decimated image is used to obtain a zoomed image of at least a portion of the received image. 
   
   
       11 . An apparatus comprising:
 a processor to determine a first pixel resolution of a received image, in which the first pixel resolution is a resolution set by a source sending the received image, and when the first pixel resolution is of a different resolution than a second pixel resolution that is available for displaying an image, the processor to decimate the received image to obtain a complex decimated image of the received image at a selected resolution; and   a display to display the complex decimated image.   
   
   
       12 . The apparatus of  claim 11 , wherein the processor discards unused decimated portions of the received image not to be displayed on the display. 
   
   
       13 . The apparatus of  claim 11 , wherein the processor decimates the received image by decimating only select columns of pixels to obtain the complex decimated image. 
   
   
       14 . The apparatus of  claim 11 , wherein the processor decimates the received image by decimating only select rows of pixels to obtain the complex decimated image. 
   
   
       15 . The apparatus of  claim 11 , wherein the processor decimates the received image by decimating both select columns of pixels and select rows pixels to obtain the complex decimated image. 
   
   
       16 . The apparatus of  claim 11 , wherein the complex decimated image has a repeating integer pattern of a selected aspect ratio and wherein the complex decimated image is obtained by decimating horizontal lines of pixels based on the aspect ratio. 
   
   
       17 . The apparatus of  claim 11 , wherein the complex decimated image has a repeating integer pattern of a selected aspect ratio and wherein the complex decimated image is obtained by decimating vertical lines of pixels based on the aspect ratio. 
   
   
       18 . The apparatus of  claim 11 , wherein the complex decimated image has a repeating integer pattern of a selected aspect ratio and wherein the complex decimated image is obtained by decimating both horizontal and vertical lines of pixels based on the aspect ratio. 
   
   
       19 . The apparatus of  claim 11 , wherein the source of the received image is a camera and wherein the processor processes the received image from the camera for viewing on the display. 
   
   
       20 . The apparatus of  claim 11 , wherein the complex decimated image is used to obtain a zoomed image of at least a portion of the received image.