Invention Grant
- Patent Title: Geometric transforms for image compression
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Application No.: US16662818Application Date: 2019-10-24
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Publication No.: US11412260B2Publication Date: 2022-08-09
- Inventor: Jyrki Antero Alakuijala , Jan Wassenberg
- Applicant: Google LLC
- Applicant Address: US CA Mountain View
- Assignee: Google LLC
- Current Assignee: Google LLC
- Current Assignee Address: US CA Mountain View
- Agency: Brake Hughes Bellermann LLP
- Main IPC: H04N19/46
- IPC: H04N19/46 ; G06T3/60 ; H04N19/12 ; H04N19/625 ; H04N19/176 ; H04N19/186 ; H04N19/13

Abstract:
A decoder may perform a method of decompressing images that include texture features that are not aligned with an axis of the image being compressed. In some example implementation, the method may include receiving a block of geometrically transformed pixel values and performing an inverse geometric transformation on the block of geometrically transformed pixel values to generate a first block of pixel values. The geometrically transformed pixel values represent texture features of an image that are non-parallel with a vertical axis or a horizontal axis of the image and the first block of pixel values being one of a plurality of blocks of the image. The example method may further include generating at least a portion of the image based on the first block of pixel values.
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