Method and apparatus for adaptive rate-based image data transmission and reception

Patent metadata

Field	Value
Publication number	US-9661189-B2
Application number	US-201214122543-A
Country	US
Kind code	B2
Filing date	May 29, 2012
Priority date	May 26, 2011
Publication date	May 23, 2017
Grant date	May 23, 2017

Abstract

A method of transmitting data, including obtaining luma element values and chroma element values of respective pixels included in a pixel block having a predetermined size; obtaining a plurality of partitions in which the luma element values and the chroma element values are based on a spatial position of the pixels in the pixel block; and selectively transmitting the plurality of partitions according to a data rate of the image data.

First claim

What is claimed is:

1. A method of transmitting image data in a wireless manner, the method comprising:
obtaining luma element values and chroma element values of a plurality of pixels included in a pixel block;
obtaining a plurality of partitions in which the luma element values and the chroma element values are arranged based on a spatial position of the plurality of pixels included in the pixel block; and
selectively transmitting the plurality of partitions according to a data rate,
wherein the obtaining the plurality of partitions comprises separating the luma element values from the chroma element values and respectively positioning the separated luma element values and the separated chroma element values in different partitions,
wherein a partition of the plurality of partitions comprises the separated luma element values of at least two pixels of the plurality of pixels included in the pixel block, and
wherein the separated luma element values are arranged in different partitions based on a pixel line of the pixel block to which the separated luma element values belong.

2. The method of claim 1 , further comprising selecting at least one partition of the plurality of partitions,
wherein the selectively transmitting comprises transmitting the plurality of partitions other than the at least one selected partition.

3. The method of claim 2 , wherein the selecting comprises determining a number of partitions of the at least one partition based on a bandwidth of a wireless channel for transmitting the image data.

4. The method of claim 2 , wherein the selecting comprises determining a number of partitions of the at least one partition based on respective importance levels of the plurality of partitions, wherein a partition with a lower importance is selected before a partition of a higher importance.

5. The method of claim 1 , wherein the pixel block comprises four pixels in which two pixel lines and two pixel columns are disposed.

6. The method of claim 1 , wherein a color format of the image data is any one of YCbCr 4:4:4, YCbCr 4:2:2, and YCbCr 4:2:0.

7. The method of claim 1 , wherein a number of the plurality of partitions is determined based on a color format of the image data.

8. A non-transitory computer readable recording medium having recorded thereon a program for executing the method of claim 1 .

9. A method of receiving image data in a wireless manner, the method comprising:
receiving the image data comprising at least one partition of a plurality of partitions, the plurality of partitions comprising luma element values and chroma element values corresponding to a plurality of pixels included in a pixel block, wherein the received image data does not include at least one other partition of the plurality of partitions corresponding to the plurality of pixels included in the pixel block; and
restoring the at least one other partition of the plurality of partitions with reference to a data value included in the received image data,
wherein the luma element values and the chroma element values are in different partitions,
wherein a partition of the plurality of partitions comprises the luma element values of at least two pixels of the plurality of pixels included in the pixel block, and
wherein separated luma element values are arranged in different partitions based on a pixel line of the pixel block to which the separated luma element values belong.

10. The method of claim 9 , wherein the receiving comprises receiving the image data together with separate indexing information about a color format of the image data and the at least one not received partition, and
wherein the restoring comprises restoring the luma element value and chroma element value of the at least one not received partition based on the indexing information.

11. A transmission apparatus for transmitting image data in a wireless manner, the transmission apparatus comprising:
at least one processor configured to implement a pixel partitioner configured to obtain luma element values and chroma element values of a plurality of pixels included in a pixel block, and to obtain a plurality of partitions in which the luma element values and the chroma element values are arranged based on a spatial position of the plurality of pixels included in the pixel block; and
a wireless transmitter configured to selectively transmit the plurality of partitions according to a data rate,
wherein the pixel partitioner is further configured to separate the luma element values and the chroma element values from each other and to position the separated luma element values and the separated chroma element values in different partitions,
wherein a partition of the plurality of partitions comprises the separated luma element values of at least two pixels of the plurality of pixels included in the pixel block, and
wherein the separated luma element values are arranged in different partitions based on a pixel line of the pixel block to which the separated luma element values belong.

12. The transmission apparatus of claim 11 , wherein the at least one processor is further configured to implement a partition selector configured to select at least one partition of the plurality of partitions, and
wherein the wireless transmitter is further configured to transmit the plurality of partitions other than the at least one selected partition.

13. The transmission apparatus of claim 12 , wherein the partition selector is configured to determine a number of the at least one partition based on a bandwidth of a wireless channel for transmitting the image data.

14. The transmission apparatus of claim 12 , wherein each partition has a respective importance level, and
wherein the partition selector is configured to select a partition with a lower importance level before selecting a partition with a higher importance level.

15. The transmission apparatus of claim 11 , wherein the pixel block comprises four pixels in which two pixel lines and two pixel columns are disposed.

16. The transmission apparatus of claim 11 , wherein a color format of the image data is any one of YCbCr 4:4:4, YCbCr 4:2:2, and YCbCr 4:2:0.

17. The transmission apparatus of claim 11 , wherein a number of the plurality of partitions is determined based on a color format of the image data.

18. A reception apparatus for receiving image data, the reception apparatus comprising:
a wireless receiver configured to receive the image data in which at least one partition of a plurality of partitions, the plurality of partitions comprising luma element values and chroma element values corresponding to a plurality of pixels included in a pixel block, is not received; and
at least one processor configured to implement a data restorer configured to restore the not received at least one partition with reference to a data value included in the received image data,
wherein the luma element values and the chroma element values are in different partitions,
wherein a partition of the plurality of partitions comprises the luma element values of at least two pixels of the plurality of pixels included in the pixel block, and
wherein the separated luma element values are arranged in different partitions based on a pixel line of the pixel block to which the separated luma element values belong.

19. The reception apparatus of claim 18 , wherein the received image data comprises at least one partition among the plurality of partitions corresponding to the plurality of pixels included in the pixel block.

20. Th

Assignees

• Park Sung-Bum
• Kwon Hyuk-Choon
• Shao Huai-Rong
• Samsung Electronics Co Ltd

Inventors

• Park Sung-Bum
• Kwon Hyuk-Choon
• Shao Huai-Rong

Classifications

• H04L47/2416 Primary

  Real-time traffic · CPC title

• H04N21/43635

  HDMI · CPC title

• H04N21/43637

  involving a wireless protocol, e.g. Bluetooth®, RF or wireless LAN [IEEE 802.11] (arrangements for wireless networking or broadcasting of information in indoor or near-field type systems H04B10/114) · CPC title

• H04N21/440263

  by altering the spatial resolution, e.g. for displaying on a connected PDA · CPC title

• H04N1/646 Primary

  Transmitting or storing colour television type signals, e.g. PAL, Lab; Their conversion into additive or subtractive colour signals or vice versa therefor (H04N1/642, H04N1/644 take precedence) · CPC title