Method and apparatus for compressing coding unit in high efficiency video coding

A method for processing coding units of video data in a video encoder, the method comprising:

• selecting a coding process from a group consisting of a first coding process and a second coding process to process the coding units;
• incorporating a first indication signal corresponding to the coding process selected in a video bitstream associated with the video data;
• receiving a current coding unit (CU);
• and
• determining CU structure for the current CU according to the coding process selected;
• and
• encoding the current CU according to the CU structure to generate compressed data to include in a bitstream;
• and
• wherein when the first coding process is selected, said processing the current CU partitions a 2N×2N CU according to a first CU structure without INTER N×N with N=4.

An apparatus for decoding of a video bitstream in a video decoder, the apparatus comprising one or more electronic circuits configured to:

• receive a first indication signal from the video bitstream;
• select a decoding process from a group consisting of a first decoding process and a second decoding process according to the first indication signal;
• determine CU structure for a current coding unit (CU) associated with the video bitstream using the decoding process selected;
• and
• reconstruct the current CU according to the CU structure determined;
• and
• wherein when the first decoding process is selected, the CU structure corresponds to a first CU structure without INTER N×N with N=4 for a 2N×2N CU.

An apparatus for processing coding units of video data in a video encode, the apparatus comprising one or more electronic circuits configured to:

• select a coding process from a group consisting of a first coding process and a second coding process to process the coding units;
• incorporate a first indication signal corresponding to the coding process selected in a video bitstream associated with the video data;
• receiving a current coding unit (CU) of the coding units;
• and
• determine CU structure for the current CU according to the coding process selected;
• and
• encode the current CU according to the CU structure to generate compressed data to include in a bitstream;
• and
• wherein when the first coding process is selected, said processing the current CU partitions a 2N×2N CU according to a first CU structure without INTER N×N with N=4.