Invention Grant
- Patent Title: Method of encoding an image into a coded image, method of decoding a coded image, and apparatuses thereof
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Application No.: US16056939Application Date: 2018-08-07
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Publication No.: US10666951B2Publication Date: 2020-05-26
- Inventor: Chong Soon Lim , Viktor Wahadaniah , Sue Mon Thet Naing , Hisao Sasai , Takahiro Nishi , Youji Shibahara , Toshiyasu Sugio
- Applicant: Sun Patent Trust
- Applicant Address: US NY New York
- Assignee: SUN PATENT TRUST
- Current Assignee: SUN PATENT TRUST
- Current Assignee Address: US NY New York
- Agency: Wenderoth, Lind & Ponack, L.L.P.
- Main IPC: H04N19/159
- IPC: H04N19/159 ; H04N19/176 ; H04N19/172 ; H04N19/126 ; H04N19/61 ; H04N19/46 ; H04N19/157 ; H04N19/50 ; H04N19/196

Abstract:
A method of encoding an image into a coded image, the method comprising: writing a quantization offset parameter into the coded image, determining a prediction mode type for coding a block of image samples of the image into a coding unit of the coded image, determining a quantization parameter for the block of image samples, and determining if the prediction mode type is of a predetermined type, wherein if the prediction mode type is of the predetermined type, the method further comprises: modifying the determined quantization parameter using the quantization offset parameter, and performing a quantization process for the block of image samples using the modified quantization parameter, and wherein if the prediction mode type is not of the predetermined type, the method further comprises: performing a quantization process for the block of image samples using the determined quantization parameter.
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