Method for transmitting moving picutres in mobile communication terminal

• US 20060072659A1
• Filed: 08/22/2005
• Published: 04/06/2006
• Est. Priority Date: 10/01/2004
• Status: Abandoned Application

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Kim, Kang-Wook, Son, Jae-Gon
• Application Number:
  US11/207,742
• Publication Number:
  US 20060072659A1
• Time in Patent Office: Days
• US Class Current: 375/240.10
• CPC Class Codes: H04N 19/126 Details of normalisation or weighting functions, e.g. normalisation matrices or variable uniform quantisers
• CPC Class Codes: H04N 19/162 User input
• CPC Class Codes: H04N 19/164 Feedback from the receiver or from the transmission channel
• CPC Class Codes: H04N 19/172 the region being a picture, frame or field
• CPC Class Codes: H04N 19/18 the unit being a set of transform coefficients
• CPC Class Codes: H04N 19/40 using video transcoding, i.e. partial or full decoding of a coded input stream followed by re-encoding of the decoded output stream
• CPC Class Codes: H04N 19/48 using compressed domain processing techniques other than decoding, e.g. modification of transform coefficients, variable length coding [VLC] data or run-length data motion estimation in a transform domain H04N19/547; processing of decoded motion vectors H04N19/513
• CPC Class Codes: H04N 19/61 in combination with predictive coding

Abstract

Disclosed is a method for transmitting moving pictures in a mobile communication terminal. The method comprises the steps of determining if a size of an original moving picture to be transmitted exceeds preset maximum transmission capacity when a user requests transmission of a moving picture, generating a plurality of edited moving pictures by editing the original moving picture when the size of the original moving picture exceeds the preset maximum transmission capacity, and transmitting the edited moving pictures.

Claims

1. A method for transmitting a moving picture in a mobile communication terminal, the method comprising the steps of:

determining if a size of an original moving picture to be transmitted exceeds a preset maximum transmission capacity when a user requests transmission of a moving picture;

generating a plurality of edited moving pictures by editing the original moving picture when the size of the original moving picture exceeds the preset maximum transmission capacity; and

transmitting the edited moving pictures.

2. The method as claimed in claim 1, wherein the edited moving pictures are data obtained by bit-rate downsampling the original moving picture, which have been divided into several moving pictures having a predetermined size.

3. The method as claimed in claim 1, wherein the step of generating the edited moving pictures comprises the steps of:

outputting a message for obtaining approval of the user for editing of the moving picture when the size of the original moving picture exceeds the preset maximum transmission capacity; and

generating the edited moving pictures by dividing the original moving picture by a predetermined size and then performing bit-rate downsampling when the user approves the editing of the original moving picture.

4. The method as claimed in claim 3, wherein the step of generating the moving pictures comprises the steps of:

dividing the original moving picture by a value corresponding to K times the preset maximum transmission capacity;

performing variable length decoding for each divided moving picture using discrete cosine transform coefficients;

re-quantizing each variable length decoded moving picture based on a quantization step size having K times a quantization step size of the original moving picture; and

performing variable length coding for each re-quantized moving picture using discrete cosine coefficients.

5. The method as claimed in claim 4, wherein a value of K used in the dividing step is identical to a value of K used in the re-quantizing step.

6. The method as claimed in claim 1, wherein, in the step of transmitting the edited moving pictures, the edited moving pictures are transmitted through a wireless network.