| US 7,539,346 B2 | ||
| H.264 decoding method for fast CAVLC | ||
| Hae Yong Kang, Seoul (Korea, Republic of) | ||
| Assigned to C&S Technology Co., Ltd., Seoul (Korea, Republic of) | ||
| Filed on Dec. 12, 2005, as Appl. No. 11/301,227. | ||
| Claims priority of application No. 10-2005-0072817 (KR), filed on Aug. 09, 2005. | ||
| Prior Publication US 2007/0036448 A1, Feb. 15, 2007 | ||
| Int. Cl. G06K 9/36 (2006.01) | ||
| U.S. Cl. 382—233 [375/E7.027; 382/246] | 10 Claims |
| 1. A H.264 decoding method for fast context adaptive variable length coding (CAVLC), the method comprising:
receiving a CAVLC encoded bit stream;
determining the number of leading zeros in the encoded bit stream, a row index of a look-up table being derived from the number
of leading zeros, the look-up table including an array of total coefficient value-trailing ones value pairs and stored in
a memory;
determining a column index value of the look-up table from the encoded bit stream;
reading a total coefficient value and a trailing ones (T1s) value corresponding to the row index value and the column index value from the look-up table stored in the memory;
generating coefficients for video decoding based on the total coefficient value and the trailing ones value; and
generating video data based on the coefficients.
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