DISPLAY APPARATUS AND CONTROLLER AND METHOD OF CONTROLLING THE SAME

• US 20160063673A1
• Filed: 06/19/2015
• Published: 03/03/2016
• Est. Priority Date: 09/03/2014
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: LIM, Bo Ra, KIM, Seon-seok
• Granted Patent: US 9,904,980 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06T 3/4007 based on interpolation, e.g. bilinear interpolation image demosaicing G06T3/4015; edge-driven or edge-based scaling G06T3/403

Abstract

A display apparatus including: a display; and a controller configured to detect an object in an input image, divide the image into a first region of the image corresponding to a location of the detected object and a second region of the image corresponding to a region of the input image excluding the first region, adjust the first region and the second region using different scale factors, and control the display to display the image having the adjusted first and second regions.

Claims

1. A display apparatus comprising:

a display; and

a controller configured to detect an object in an input image, divide the image into a first region of the image corresponding to a location of the detected object and a second region of the image corresponding to a region of the input image excluding the first region, adjust the first region and the second region using different scale factors, and control the display to display the image having the adjusted first and second regions.

2. The display apparatus according to claim 1, wherein a frame of the input image comprises a plurality of regions having a same size,

wherein the first region comprises one or more regions among the plurality of regions having the same size,

wherein the first region is scaled using a scaling factor less than 1,

wherein the second region comprises a plurality of regions among the plurality of regions having the same size excluding the one or more regions of the first region,

wherein the plurality of regions of the second region are scaled using a scale factor greater than the scale factor of the first region, and

wherein a region among the plurality of regions of the second region farther from the first region is scaled using a greater scale factor than another region among the plurality of regions of the second region closer to the first region.

3. The display apparatus according to claim 1, wherein the input image comprises a plurality of frames, and

wherein the controller is further configured to detect motion vectors by comparing a first frame of the plurality of frames with a second frame of the plurality of frames, detect a vanishing point at which the detected motion vectors converge based on the motion vectors, identify a region where the detected vanishing point is located, and set the identified region as the first region.

4. The display apparatus according to claim 1, wherein the controller is further configured to detect a composition of the image, detect a vanishing point based on the detected composition, identify a region where the detected vanishing point is located, and set the identified region as the first region.

5. The display apparatus according to claim 1, wherein the controller is further configured to determine whether a skyline exists in the input image and, in response to determining that the skyline exists, set a predetermined region as the first region.

6. The display apparatus according to claim 1, wherein the controller is further configured to scale up the first region using a predetermined scale factor and scale down the second region based on a predetermined scale factor, and

wherein the predetermined scale factor is a scale factor corresponding to the Gaussian distribution.

7. A display apparatus comprising:

a display; and

a controller configured to detect motion within an input image, identify a first region of the input image at which the detected motion converges, adjust the first region and a second region of the input image using different scale factors, and control the display to display the image having the adjusted first and second regions.

8. The display apparatus according to claim 7, wherein a frame of the input image comprises a plurality of regions having a same size,

wherein the first region comprises one or more regions among the plurality of regions having the same size,

wherein the first region is scaled using a scale factor less than 1,

wherein the second region comprises a plurality of regions among the plurality of regions having the same size excluding the one or more regions of the first region, and

wherein the plurality of regions of the second region are scaled using a scale factor greater than the scale factor of the first region.

9. The display apparatus according to claim 7, wherein the input image comprises a plurality of frames, and

wherein the controller is further configured to detect motion vectors by comparing a first frame of the plurality of frames with a second frame of the plurality of frames, detect a vanishing point based on the motion vectors, determine a region where the detected vanishing point is located, and set the determined region as the first region.

10. A display apparatus comprising:

a display; and

a controller configured to determine whether a skyline exists in an input image, adjust, in response to determining that a skyline exists in the input image, a predetermined first region and a second region of the input image using different scale factors, adjust, in response to determining that the skyline does not exist in the input image, the first region and the second region using the same scale factor, and control the display to display the image having the adjusted first and second regions.

11. The display apparatus according to claim 10, wherein a frame of the input image comprises a plurality of regions having a same size,

wherein the first region comprises one or more regions among the plurality of regions having the same size,

wherein the first region is scaled using a scale factor less than 1,

wherein the second region comprises a plurality of regions among the plurality of regions having the same size excluding the one or more regions of the first region, and

wherein the plurality of regions of the second region are scaled using a scale factor greater than the scale factor of the first region.

12. A display apparatus comprising:

a display; and

a controller configured to detect an object from an input image, scale up a first region of the input image where an object is located using a predetermined scale factor, scale a second region of the input image based on the predetermined scale factor, and control the display to display the image having the image scaled-up first region and scaled second region.

13. The display apparatus according to claim 12, wherein the controller comprises:

an object detector configured to detect the object;

a scaler configured to scale the first region where the object is located using the predetermined scale factor; and

an offset adjuster configured to calculate an offset value corresponding to a difference between a size of the input image and a size of the scaled first region, and to scale the second region based on the calculated offset value.

14. The display apparatus according to claim 12, wherein the controller is further configured to further scale the scaled first region and second region using the predetermined scale factor when an aspect ratio of the display is different from an aspect ratio of the input image.

15. A method of controlling a display apparatus, the method comprising:

detecting an object from an input image;

dividing the input image into a first region including the detected object and a second region excluding the first region;

adjusting the first region and second region using different scale factors; and

outputting the image having the scaled-up first region and scaled second region.

16. The method according to claim 15, wherein the adjusting the first region and second region using different scale factors comprises:

scaling the first region using a scale factor less than 1; and

scaling the second region using a scale factor greater than the scale factor of the first region.

17. The method according to claim 15, wherein the dividing the input image comprises:

detecting motion within the input image;

identifying a region at which the detected motion converges; and

setting the identified region as the first region.

18. The method according to claim 15, wherein the dividing the input image into the first region comprises:

detecting a composition of the image based on the detected object;

detecting a vanishing point based on the detected composition;

identifying a region where the detected vanishing point is located; and

setting the identified region as the first region.

19. The method according to claim 15, wherein the dividing the input image comprises:

determining whether a skyline exists in the input image based on edges of the detected object; and

setting, in response to determining that the skyline exists, a predetermined region as the first region.

20. The method according to claim 15, wherein the adjusting the first region and second region using different scale factors comprises:

scaling up the first region using a predetermined scale factor; and

scaling down the second region based on the predetermined scale factor,

wherein the predetermined scale factor is a scale factor corresponding to the Gaussian distribution.

21. A controller comprising:

a processor; and

a memory storing a program,

wherein, when the program is executed by the processor, the processor is configured to;

detect a point of interest in an input image,

divide the input image into a first region including the point of interest and a second region not including the point of interest,

scale the first region and the second region using different scale factors, and

output the image having the scaled first and second regions.

22. The controller according to claim 21, wherein, when the program is executed by the processor, the processor is further configured:

detect motion within the input image,

determine a point where the detected motion converges, and

select the point where the detected motion converges as the point of interest.

23. The controller according to claim 21, wherein, when the program is executed by the processor, the processor is further configured:

determine whether a skyline exists in the input image,

select, in response to determining that a skyline exists in the input image, a predetermined point as the point of interest, and

select a predetermined first region based on the predetermined point as first image.

24. The controller according to claim 21, wherein, when the program is executed by the processor, the processor is further configured:

detect an object within the input image, and

select the object as the point of interest.