Adaptive image formatting control

• US 7,574,653 B2
• Filed: 10/11/2002
• Issued: 08/11/2009
• Est. Priority Date: 10/11/2002
• Status: Active Grant

• Current Assignee: Microsoft Technology Licensing LLC (Microsoft Corporation)
• Original Assignee: Microsoft Corporation
• Inventors: Schechter, Greg David, Croney, Joseph Keith
• Primary Examiner(s): Hutton; Doug
• Assistant Examiner(s): Blackwell; James H
• Application Number:
  US10/269,072
• Publication Number:
  US 20040073873A1
• Time in Patent Office: 2,496 Days
• Field of Search: 715/526, 715/735, 715/523, 715/513, 715/501.1, 715/794, 715/205, 715/234, 715/249, 715/273, 709/219, 709/228, 709/246, 345/428, 345/660
• US Class Current: 715/249
• CPC Class Codes: G06T 3/4092 Image resolution transcoding, e.g. by using client-server architectures

Abstract

A method for rendering images for display on a client device is provided. A single image may be stored on the server for conversion into an image suitable for display on a particular client device. Image conversion may be performed consistent with the display capabilities of the client device. The display capabilities of the particular device requesting access to a web page may be identified at the time the web page is requested. Converted images may be stored and made available upon request.

Claims

1. A method executable on a computer for generating an image, comprising:

a web application designating conversion characteristics at a server device, the conversion characteristics being associated with characteristics of a plurality of different mobile client devices, wherein the conversion characteristics indicate at least one of a scale factor for an image in relation to a dimension of a mobile client device'"'"'s display, an indication for maintaining an aspect ratio of the image, and a dither method applied to the image;

the web application designating a priority factor for the image, wherein the priority factor indicates whether the requested image will be displayed on the mobile client device before each of a plurality of other images;

receiving a request for a web page at the server device from a browser operating on the mobile client device, wherein the web page is created by the web application and the web page includes the image;

the server device determining the display characteristics of the mobile client device from the request, wherein the request includes a header with information indicating display characteristics of the mobile client device; and

the server device modifying an image file corresponding to the image for generating an image suitable for rendering on the display of the mobile client device in accordance with the display characteristics of the mobile client device and the conversion characteristics.

2. The method according to claim 1 further including storing the image suitable for rendering on the display of the mobile client device in memory.

3. The method according to claim 2 further including:

determining if an image file suitable for display on a mobile client device has been generated; and

if a suitable image file has been generated, retrieving from memory the generated image file for transmission to the mobile client device.

4. The method according to claim 1 wherein determining the display characteristics of the mobile client device includes receiving information identifying the mobile client device.

5. The method according to claim 1 wherein modifying the image file includes converting the image file into a format compatible with the image format of the mobile client device.

6. The method according to claim 5 wherein the image file may be converted into a format compatible with WBMP or PNG formats.

7. The method according to claim 1 wherein modifying the image file includes scaling the image to a size appropriate for display on the display of the mobile client device.

8. The method according to claim 1 wherein modifying the image file includes converting the image so that the displayed image occupies a specified amount of the display area of the display of the mobile client device.

9. The method according to claim 1 wherein modifying the image file includes converting the colors of the image into colors for display on the mobile client device.

10. The method according to claim 1 wherein modifying the image file includes converting the colors of the image into a monochromatic image.

11. The method according to claim 1 wherein modifying the image file includes converting a color image into a grayscale image.

12. The method according to claim 1 wherein modifying the image file includes converting the brightness of the image.

13. The method according to claim 1 wherein the mobile client device includes a laptop.

14. The method according to claim 1 wherein the mobile client device includes a display with limited display capabilities.

15. The method according to claim 1 further including transmitting the image file suitable for rendering on the display of the mobile client device to the mobile client device.

16. The method of claim 1, wherein the priority factor indicates whether the requested image will be displayed on the mobile device before each of the plurality of requested images when the mobile client device is incapable of displaying the requested image and the plurality of requested images simultaneously.

17. A computer storage medium storing computer executable instructions that when executed perform a method comprising:

a web application designating conversion characteristics at a server device, the conversion characteristics being associated with characteristics of a plurality of different mobile client devices wherein the conversion characteristics indicate at least one of a scale factor for a requested image in relation to a dimension of a mobile client'"'"'s display, an indication for maintaining an aspect ratio of the requested image, and a dither method applied to the requested image;

the web application designating a priority factor for the requested image, wherein the priority factor indicates whether the requested image will be displayed on the mobile client device before each of a plurality of requested images;

the server device receiving a request for a web page from a browser operating on a mobile client device including a display, the request including a header with information indicating display characteristics of the mobile client device, wherein the web page is created by the web application and the web page includes the requested image;

in response to receiving the request, the server device determining if an image file of the image suitable for display on the mobile client device has been generated;

if a suitable image file has been generated, retrieving the image file; and

if a suitable image file has not been generated, the server device modifying an image file corresponding to the image according to the conversion characteristics to generate an image suitable for rendering on the display of the mobile client device.

18. The computer storage medium according to claim 17 further including storing the modified image in memory.

19. The computer storage medium according to claim 17 wherein the request includes receiving information identifying the mobile client device.

20. The computer storage medium according to claim 17 wherein modifying the image file includes converting the image file into a format compatible with the mobile client device.

21. The computer storage medium according to claim 17 wherein modifying the image file includes scaling the image.

22. The computer storage medium according to claim 17 wherein modifying the image file includes performing color image processing.

23. The computer storage medium according to claim 17 wherein modifying the image file includes converting the image into a grayscale image.

24. The computer storage medium according to claim 17 wherein the mobile client device includes a laptop.

25. The computer storage medium according to claim 17 wherein the mobile client device includes a display with limited display capabilities.

26. The computer storage medium according to claim 17 further including transmitting the modified image file to the mobile client device.

27. The method of claim 17, wherein the priority factor indicates whether the requested image will be displayed on the mobile client device before each of the plurality of requested images when the mobile client device is incapable of displaying the requested image and the plurality of requested images simultaneously.

28. A server device for generating an image, the server device comprising:

computer storage media storing;

a web application designating conversion characteristics at the server device, the conversion characteristics being associated with characteristics of a plurality of different client devices, wherein the conversion characteristics indicate at least one of a scale factor for an image in relation to a dimension of a client'"'"'s display, an indication for maintaining an aspect ratio of the image, and a dither method applied to the image, the web application further designating a priority factor for the image, wherein the priority factor indicates whether the image will be displayed on the client device before each of a plurality of requested images; and

computer executable instructions that when executed perform a method comprising;

receiving a request for a web page at the server device from a browser operating on the client device, wherein the web page is created by the web application and the web page includes the image;

in response to receiving the request, the server device determining imaging characteristics of the client device using the request, wherein the request includes a header with information indicating imaging characteristics of the client device;

the server device converting an image file corresponding to the image in accordance with the imaging characteristics of the client device and the conversion characteristics to generate a converted image file; and

storing the converted image file in memory; and

a processor for executing the computer executable instructions.

29. The server device according to claim 28 further including retrieving the converted image file in response to a request from a browser operating on a second client device.

30. The server device according to claim 28 wherein converting an image file includes selecting an image file, from a plurality of image files, based on the imaging characteristics of the client device for conversion into a form suitable for display at the client device.

31. The server device according to claim 28 further including:

determining if an image file suitable for processing on a client device has been stored in memory; and

if an image file suitable for processing on a client device has been stored in memory, retrieving the stored image file for transmission to the client device.

32. The server device according to claim 28 wherein determining the imaging characteristics of the client device includes determining the image formats processed by the client device.

33. The server device according to claim 28 wherein determining the imaging characteristics of the client device includes determining the display characteristics of the client device.

34. The server device according to claim 28 wherein converting an image file includes scaling the image.

35. The server device according to claim 34 wherein scaling the image includes converting the image to fit within a designated portion of the image area of the display of the client device.

36. The server device according to claim 34 wherein scaling the image includes converting the image to occupy a designated amount of the image area of the display of the client device.

37. The server device according to claim 28 wherein converting an image file includes performing color processing.

38. The server device according to claim 28 wherein converting an image file includes converting a color image into a grayscale image.

39. The method of claim 28, wherein the priority factor indicates whether the requested image will be displayed on the client device before each of the plurality of requested images when the client device is incapable of displaying the requested image and the plurality of requested images simultaneously.

40. A method executable on a computer for controlling the generation of an image, comprising:

a web application designating a first set and a second set of conversion characteristics at a server device, the first set of conversion characteristics being associated with characteristics of a first client device and the second set of conversion characteristics being associated with characteristics of a second client device, wherein the first set of conversion characteristics indicate at least one of a scale factor for a requested image in relation to a dimension of the first client'"'"'s display, an indication for maintaining an aspect ratio of the requested image, and a dither method applied to the requested image, and wherein the second set of conversion characteristics indicate at least one of a scale factor for the requested image in relation to a dimension of the second client'"'"'s display, a second indication for maintaining the aspect ratio of the requested image, and a second dither method applied to the requested image;

the web application designating a priority and factor for the requested image, wherein the priority factor indicates whether the requested image will be displayed on the first client device, and the second client device before each of a plurality of requested images;

receiving a request for a web page at the server device from a browser, the request includes a header with information indicating display characteristics of a client devices, wherein the web page is created by the web application and the web page includes the requested images; and

in response to receiving the request, the server device determining that the client device is the first client device and generating an image corresponding to the requested image suitable for rendering on the first client'"'"'s display of the client device according to the first set of conversion characteristics and the display characteristics.

41. The method according to claim 40 wherein the first client device is a mobile unit.

42. The method according to claim 40 wherein the first client device is a mobile unit with limited display capabilities.

43. The method according to claim 40 wherein the first client device is a desk-top unit.

44. The method according to claim 40 wherein designating a first set and a second set of conversion characteristics includes specifying a brightness factor for the first client device and the second client device.

45. The method according to claim 40 wherein designating a first set and a second set of conversion characteristics includes specifying conversion in accordance with a universally displayable image profile.

46. The method according to claim 40 further including previewing the effects of designated conversion characteristics on the image.

47. The method according to claim 40 further including modifying one of the first set or the second set of conversion characteristic.

48. A computer readable recording medium incorporating the method as recited in claim 40.

49. The method of claim 40, wherein the priority factor indicates whether the requested image will be displayed on the client device before each of the plurality of requested images when the client device is incapable of displaying the requested image and the plurality of requested images simultaneously.