Cropping of images for display on variably sized display devices

• US 9,329,827 B2
• Filed: 12/20/2005
• Issued: 05/03/2016
• Est. Priority Date: 12/29/2004
• Status: Expired due to Fees

• Current Assignee: FunMobility, Inc.
• Original Assignee: FunMobility, Inc.
• Inventors: Lavine, Adam, Chen, Yu-Jen Dennis, Rodgers, Peter
• Primary Examiner(s): Amini, Javid A
• Application Number:
  US11/312,719
• Publication Number:
  US 20060139371A1
• Time in Patent Office: 3,787 Days
• Field of Search: 345/620, 345/628, 382/298
• US Class Current: 1/1
• CPC Class Codes: G06F 3/14 Digital output to display device ; Cooperation and interconnection of the display device with other functional units
• CPC Class Codes: G09G 2340/145 related to small screens
• CPC Class Codes: H04M 1/72427 for supporting games or graphical animations

Abstract

Cropping source images for display on user devices. A source image is cropped and/or resized to correspond to dimensions of a display screen of a device by selecting an area of interest of the source image which will not be lost in the process of resizing the image. Coordinate points are positioned within the image to correspond to dimensions of the display screen on which the image will be displayed and the image is then cropped at the boundaries defined by the coordinate points which include a crop height and a crop width. If needed, the image is then scaled down proportionally to resize the image to a size that corresponds to the dimensions of the display screen of the device.

Claims

1. A method for preparing a source image for display on a display screen of a device, the method comprising:

prior to receiving a request for the source image for display on the display screen of the device;

storing the source image on a server having at least one processor, an area of interest defined within the source image, the area of interest comprising a region of the image bounded by a crop rectangle;

preparing a plurality of cropped images from the source image with the server, each of the cropped images of the plurality comprising the area of interest, at least some of the cropped images of the plurality having different dimensions, wherein preparing each of the cropped images comprises;

positioning coordinate points with the server within the source image to correspond to dimensions of the display screen of the device, such that the area of interest is included within the coordinate points, the coordinate points defining the crop rectangle;

centering the crop rectangle on the area of interest, wherein the crop rectangle is translated in at least one of an x-axis or a y-axis when the crop rectangle extends beyond boundaries of the source image to place the crop rectangle within the boundaries of the source image; and

cropping the source image at the coordinate points to generate a cropped image bounded by the crop rectangle, wherein the extent, if any, to which portions of the source image other than the area of interest are included in the cropped image depends upon the size of the display screen, wherein the cropped image is included in the plurality of cropped images; and

storing the plurality of cropped images at the server;

receiving, at the server, the request for the source image for display on the display screen of the device;

identifying one of the plurality of cropped images having dimensions corresponding to those of the display screen of the device; and

sending the one of the cropped images to the device from the server.

2. The method of claim 1, wherein an aspect ratio of the display screen is less than an aspect ratio of the area of interest, wherein positioning coordinate points within the source image further comprises:

determining a crop height and a crop width that define a crop rectangle including the coordinate points, comprising one or more of;

setting the crop height equal to a width of the area of interest divided by the aspect ratio of the display screen, the display screen defined by a device rectangle, wherein;

when the crop height is greater than a height of a source rectangle defining the source image, setting the crop height to the height of the source rectangle; and

when the crop height is less than a height of the device rectangle, setting the crop height to the height of the device rectangle; and

setting the crop width equal to the crop height multiplied by the aspect ratio of the display screen.

3. The method of claim 1, wherein an aspect ratio of the display screen is greater than an aspect ratio of the area of interest, wherein positioning coordinate points within the source image further comprises:

determining a crop height and a crop width that define the crop rectangle including the coordinate points, comprising one or more of;

setting the crop width equal to a height of the area of interest multiplied by the aspect ratio of the display screen, the display screen defined by a device rectangle;

wherein;

when the crop width is greater than a width of a source rectangle defining the source image, setting the crop width equal to the width of the source rectangle; and

when the crop width is less than a width of the device rectangle, setting the crop width equal to the width of the device rectangle; and

setting the crop height equal to the crop width divided by the aspect ratio of the display screen.

4. The method of claim 1, wherein cropping the source image at the coordinate points to generate a cropped image further comprises scaling the cropped image proportionally such that the crop image fits the display screen of the device.

5. The method of claim 1, wherein receiving, at the server, the request for the source image for display on the display screen of the device comprises receiving, at the server, the request for the source image for display on the display screen of the device comprising at least one of:

a computer;

a laptop computer;

a personal digital assistant; and

a telephone.

6. The method of claim 1, wherein sending the one of the plurality cropped images to the device comprises sending the one of the cropped images to a cellular telephone, wherein the one of the plurality of cropped images is configured for display as wallpaper on the display screen of the cellular telephone.

7. The method of claim 6, wherein sending the one of the plurality of cropped images to a cellular telephone comprises sending the one of the plurality of cropped images for download to the cellular telephone over a network, the network comprising at least one of:

the Internet;

a local area network;

a wireless connection;

an 802.11 connection;

a Bluetooth connection;

a wired connection; and

a wireless cellular communication link.

8. The method of claim 1, further comprising selecting the source image from a plurality of source images using a user interface of the device.

9. The method of claim 1, wherein positioning coordinate points comprises positioning the coordinate points based on information received from the device via a network, the information including at least one of:

information describing the size of the display screen;

information identifying a model of the device;

information identifying a user of the device;

information identifying a manufacturer of the device; and

information including the coordinate points defining a device rectangle that bounds the display screen.

10. A method for displaying at least a portion of a source image on a display of a display device, the method comprising:

storing the source image at a server comprising at least one processor, the source image comprising an interest rectangle defined by an interest aspect ratio and bounding an area of interest within the source image, the area of interest defined before the storing the source image;

receiving a request for the source image, the request comprising information defining a device rectangle for displaying the source image, the device rectangle having a device aspect ratio;

preparing, before receiving the request for the source image, a plurality of cropped images including the interest rectangle, the preparing comprising;

aligning a center of a crop rectangle with a center of the interest rectangle with the server, wherein the crop rectangle is translated in at least one of an x-axis and a y-axis when the crop rectangle extends beyond boundaries of the source image to place the crop rectangle within the boundaries of the source image;

cropping the source image to an area defined by the crop rectangle, the crop rectangle including both the area of interest, and portions of the source image not included in the area of interest, and cropping the source image further comprising;

when the interest aspect ratio is greater than the device aspect ratio;

cropping the source image more extensively in the height dimension such that the crop rectangle defining the boundary of the cropped source image is defined by a cropped aspect ratio that is equal to the device aspect ratio; and

when the interest aspect ratio is less than the device aspect ratio;

cropping the source image more extensively in the width dimension such that the crop rectangle defining the boundary of the cropped source image is defined by the cropped aspect ratio that is equal to the device aspect ratio; and

resizing the cropped source image such that the cropped source image has the same dimensions as the device rectangle; and

selecting a cropped image from the plurality of cropped images, the cropped image including the interest rectangle bounding the area of interest within the selected source image;

delivering the cropped image to the device.

11. The method of claim 10, wherein receiving information defining a device rectangle for displaying the source image comprises receiving the information comprising at least one of:

information describing a size of the display;

information identifying a model of the device;

information identifying a user of the device;

information identifying a manufacturer of the device;

or

information including coordinates defining the device rectangle.

12. The method of claim 10, wherein receiving information defining a device rectangle for displaying the source image comprises receiving the information from the device comprising at least one of:

a computer;

a laptop computer;

a personal digital assistant;

or

a telephone.

13. The method of claim 10, wherein delivering the cropped image to the device comprises delivering the cropped image to a cellular telephone, wherein the display is a display screen of the cellular telephone.

14. The method of claim 13, wherein delivering the cropped image to a cellular telephone comprises providing the cropped image for download to the cellular telephone over a network, the network comprising at least one of:

the Internet;

a local area network;

a wireless connection;

an 802.11 connection;

a Bluetooth connection;

a wired connection;

or

a wireless cellular communication link.

15. The method of claim 10, wherein receiving a request for the source image at a server including at least one processor comprises receiving the request from a user via a user interface of the device.

16. The method of claim 10, further comprising storing the plurality of cropped images in an image database.

17. The method of claim 10, further comprising downloading to the device the cropped source image for user acceptance or rejection.

18. A method for displaying a source image on a cellular telephone, the method comprising:

generating a plurality of cropped images from a source image prior to displaying the source image on the cellular telephone, each of the plurality of cropped images comprising a predetermined area of interest, the generating comprising;

identifying a center of the predetermined area of interest in the source image;

cropping the source image to create a cropped image, the cropped image centered around the predetermined area of interest and including at least the predetermined area of interest of the source image, the cropped image having the same aspect ratio as the aspect ratio of the display screen; and

resizing the cropped image to have dimensions less than or equal to the display screen such that the predetermined area of interest is included in the cropped image;

storing the plurality of cropped images using a storage device, each of the plurality of cropped images associated with the predetermined area of interest;

receiving a request for the source image at a server having at least one processor, the request comprising information identifying dimensions and an aspect ratio of a display screen of the cellular telephone;

selecting at least one of the plurality of cropped images associated with the requested source image based on the request; and

delivering the selected cropped image to the cellular telephone.

19. The method according to claim 18, further comprising downloading the selected cropped image to the cellular telephone via a network.

20. The method according to claim 18, wherein cropping the source image further comprises:

determining a crop height and a crop width of the cropped image, wherein;

when the aspect ratio of the display screen is less than an aspect ratio of the predetermined area of interest;

setting the cropheight equal to a width of the predetermined area of interest divided by the aspect ratio of the display screen, the display screen defined by a device rectangle, wherein;

when the cropheight is greater than a height of a source rectangle defining the source image, setting the crop height to the height of the source rectangle; and

when the cropheight is less than a height of the device rectangle, setting the crop height to the height of the device rectangle; and

setting the crop width equal to the crop height multiplied by the aspect ratio of the display screen; and

when the aspect ratio of the display screen is greater than the aspect ratio of the predetermined area of interest;

setting the cropwidth equal to a height of the predetermined area of interest multiplied by the aspect ratio of the display screen, the display screen defined by the device rectangle;

wherein;

when the crop width is greater than a width of the source rectangle defining the source image, setting the crop width equal to the width of the source rectangle; and

when the crop width is less than a width of the device rectangle, setting the crop width equal to the width of the device rectangle; and

setting the crop height equal to the crop width divided by the aspect ratio of the display screen.