SYSTEM AND METHOD FOR TRANSFERRING IMAGES AMONG SPECTRUM AGILE RADIO DEVICES WITHOUT RETRANSMITTING IMAGES

• US 20090027717A1
• Filed: 06/19/2006
• Published: 01/29/2009
• Est. Priority Date: 06/20/2005
• Status: Abandoned Application

• Current Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Original Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Inventors: Alsafadi, Yasser
• Application Number:
  US11/993,268
• Publication Number:
  US 20090027717A1
• Time in Patent Office: Days
• US Class Current: 358/1.150
• CPC Class Codes: H04N 19/188 the unit being a video data packet, e.g. a network abstraction layer [NAL] unit
• CPC Class Codes: H04N 19/88 involving rearrangement of data among different coding units, e.g. shuffling, interleaving, scrambling or permutation of pixel data or permutation of transform coefficient data among different blocks
• CPC Class Codes: H04N 19/89 involving methods or arrangements for detection of transmission errors at the decoder

Abstract

A system and method for transferring images among spectrum agile radio devices without the need to retransmit image data. The system and method of the invention encodes and transmits packets so as to permit the efficient recovery of image data that is lost during transmission without the need to retransmit the packets. Instead of encoding packets containing adjacent pixels and transmitting them line-by-line, the system and method of the present invention encodes and transmits packets containing pixels from non-adjacent areas of a frame. As a result, any losses that occur within an individual packet are distributed throughout the image rather than in a specific line or isolated region of the image. This permits the efficient recovery of image data that is lost during transmission without the need to retransmit the data.

Claims

1. A system for transferring images among spectrum agile radio devices, comprising:

a reasoner module for generating frame settings which are used to ensure that no two adjacent image pixels are placed in an identical frame which is to be transmitted;

an image description module operatively coupled to the reasoner module for storing image description data;

a transmission characteristics module operatively coupled to the reasoner module for providing parameters and environment characteristics in which the spectrum agile radio is located; and

a data link module operatively coupled to the reasoner module for storing data representing relationships between at least one of image parameters, transmission protocol and data link settings.

2. The system of claim 1, wherein the frame settings are applied to frames containing image data so as to encode and transmit packages from non-adjacent areas.

3. The system of claim 1, wherein information contained in the image description module is formatted in accordance with Digital Imaging and Communication in Medicine (DICOM) Information Object Definition (IOD).

4. The system of claim 3, wherein the information is at least one of RowLength and ColumnLength values for image pixels.

5. The system of claim 3, wherein the information contained in the image description module is expressed in Extensible Markup Language (XML).

6. The system of claim 1, wherein the protocol parameters and environment characteristics provide a description of a current transmission opportunity for a spectrum agile radio device and environmental conditions in which the device is operated.

7. The system of claim 1, wherein the protocol parameters and environment characteristics are expressed in Extensible Markup Language (XML).

8. The system of claim 1, wherein the data representing relationships between image parameters, transmission protocol and data link settings is constructed using a Web Ontology language (OWL).

9. The system of claim 1, wherein the reasoner is an inference engine which obtains transmission characteristic parameters from the transmission characteristics module, image description parameters from the image description module and data link requirement parameters from the data link requirements module.

10. The system of claim 9, wherein the reasoner generates the frame settings based on the parameters.

11. The system of claim 1, wherein the frame settings are at least one of a PacketOffset value and a ByteOffset value.

12. The system of claim 10, wherein the frame settings are at least one of a PacketOffset value and a ByteOffset value.

13. The system of claim 12, wherein the PacketOffset and the ByteOffset values are used to ensure that no two adjacent image pixels are placed within an identical frame which is transmitted.

17. The method of claim 13, wherein the information is at least one of RowLength and ColumnLength values for image pixels.

14. A method for transferring images among spectrum agile radio devices, comprising:

forwarding image description data which is stored in an image description module to a reasoner module;

forwarding parameters and environment characteristics in which the spectrum agile radio is located from a transmission characteristics module to the reasoner module;

forwarding data representing relationships between at least one of image parameters, transmission protocol and data link settings in a data link module to the reasoner module;

generating frame settings in the reasoner based on the descriptions of images, the parameters and environment characteristics and the stored data; and

encoding images based on the frame settings to ensure that no two adjacent image pixels are placed in an identical frame.

15. The method of claim 14, wherein the frame settings are applied to frames containing image data so as to encode and transmit packages from non-adjacent areas.

16. The method of claim 14, wherein information contained in the image description module is formatted in accordance with Digital Imaging and Communication in Medicine (DICOM) Information Object Definition (IOD).

18. The system of claim 16, wherein the information contained in the image description module is expressed in Extensible Markup Language (XML).

19. The method of claim 14, wherein the protocol parameters and environment characteristics provide a description of a current transmission opportunity for a spectrum agile radio device and environmental conditions in which the device is operated.

20. The method of claim 14, wherein the protocol parameters and environment characteristics are expressed in Extensible Markup Language (XML).

21. The method of claim 14, wherein the data representing relationships between image parameters, transmission protocol and data link settings is constructed using a Web Ontology language (OWL).

22. The method of claim 14, wherein the reasoner module is an inference engine which obtains transmission characteristic parameters from the transmission characteristics module, image description parameters from the image description module and data link requirement parameters from the data link requirements module.

23. The method of claim 21;

wherein the reasoner module generates the frame settings based on the parameters.

24. The method of claim 16, wherein the frame settings are at least one of a PacketOffset value and a ByteOffset value.

25. The method of claim 22, wherein the frame settings are at least one of a PacketOffset value and a ByteOffset value.

26. The method of claim 24, wherein the PacketOffset value and the ByteOffset value are used to ensure that no two adjacent image pixels are placed within an identical frame which is transmitted.