Invention Grant
- Patent Title: Method of digital video reference frame compression
- Patent Title (中): 数字视频参考帧压缩方法
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Application No.: US11653486Application Date: 2007-01-16
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Publication No.: US08503521B2Publication Date: 2013-08-06
- Inventor: Chih-Ta Star Sung , Yin-Chun Blue Lan
- Applicant: Chih-Ta Star Sung , Yin-Chun Blue Lan
- Applicant Address: TW Juhdong
- Assignee: Chih-Ta Star Sung
- Current Assignee: Chih-Ta Star Sung
- Current Assignee Address: TW Juhdong
- Main IPC: H04N7/12
- IPC: H04N7/12 ; H04B1/66

Abstract:
The digital video referencing frame image is compressed block by block by applying lossless compression algorithm to pixel components with full length, or 1 bit, 2 bits, 3 bits or 4 bits LSB bits truncation. If a sub-block has high complexity which results in more than 3 bits error for most pixel components, a transfer algorithm with quantization and VLC coding is applied to compress this sub-block. Should the complexity is higher than a threshold or at least one sub-block having error of more than 3 bits for most pixel components, truncating 1 LSB bit of sub-block with simple pattern to save more bits to be allocate to code the sub-block with highest complex pattern.
Public/Granted literature
- US20080170626A1 Method of digital video reference frame compression Public/Granted day:2008-07-17
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