The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 02, 2025
Filed:
May. 30, 2023
Imagination Technologies Limited, Kings Langley, GB;
Simon Fenney, St. Albans, GB;
Imagination Technologies Limited, Kings Langley, GB;
Abstract
Compressed data is decompressed to determine sub-primitive presence indications for intersection testing in a rendering system. Entropy encoded data is read from a block of compressed sub-primitive presence indications data and entropy decoding determines a block of entropy decoded data values. Spatial recorrelation on the block of entropy decoded values determines sub-primitive presence indications. For each line of entropy decoded values in a first dimension: for the entropy decoded values in the line: (i) a predicted value is determined for the entropy decoded value based on other entropy decoded values in the line, and (ii) the entropy decoded value is replaced with a value of a sum of the entropy decoded value and the determined predicted value for the entropy decoded value. For each line of entropy decoded values in a second dimension: for the entropy decoded values in the line: (i) a predicted value for the entropy decoded value is determined based on other entropy decoded values in the line, and (ii) the entropy decoded value is replaced with a value of a sum of the entropy decoded value and the determined predicted value for the entropy decoded value.