Sony patents image compression method that cuts memory needs
Sony describes a way to compress video by flipping image data before processing it. This technique allows the system to use less memory when converting images into digital code.
In the filing’s own words
There is provided an image processing apparatus and an image processing method for enabling suppression of an increase in a memory capacity required for orthogonal transform and inverse orthogonal transform. A second transformation matrix is derived using a first transformation matrix, a prediction residual of an image is orthogonally transformed using the derived second transformation matrix, and coefficient data obtained by orthogonally transforming the prediction residual is encoded to generate a bit stream. The present disclosure can be applied to, for example, an image processing apparatus, an image encoding device, an image decoding device, or the like.
What exactly they claim (claim 1)
1. An image processing apparatus comprising: circuitry configured to set horizontal identification data for identifying whether to flip a prediction residual of an image in a horizontal direction and set vertical identification data for identifying whether to flip the prediction residual in a vertical direction, based on a transform type of an orthogonal transform for the prediction residual, perform a permutation operation on the prediction residual using horizontal the set identification data and the set vertical identification data, and perform the orthogonal transform on the prediction residual subjected to the permutation operation, using a base transform matrix corresponding to the transform type.
Facts
- Company
- Sony (SONY CORPORATION)
- Official title
- IMAGE PROCESSING APPARATUS AND METHOD
- Publication number
- US20260303868A1
- Application number
- 19704031
- Filed
- Jun 10, 2026
- Published
- Oct 1, 2026
- Inventors
- 1
- Claims
- 8
Classified under
H04N 19/61 Electricity & electronicsH04N 19/184 Electricity & electronicsH04N 19/96 Electricity & electronicsMore from Sony in AI & software
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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.