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:
Jun. 25, 2019
Filed:
Jun. 12, 2015
Institute of Automation Chinese Academy of Sciences, Beijing, CN;
Ruoshan Guo, Beijing, CN;
Lei Wang, Beijing, CN;
Rui Han, Beijing, CN;
Chen Lin, Beijing, CN;
Donglin Wang, Beijing, CN;
Institute of Automation Chinese Academy of Sciences, Beijing, CN;
Abstract
The present invention provides apparatus and method for parallel polyphase image interpolation. The apparatus comprises: a local memory, a first memory access control unit, a second memory access control unit, a source image data buffering unit, a filter coefficient buffering unit, a multiply-accumulator, a third memory access control unit and a state machine; the first memory access control unit is configured for obtaining source image data from the local memory and buffering them into a source image data buffering unit; the second memory access control unit is configured for obtaining filter coefficients from the local memory and buffering them into a filter coefficient buffering unit; the source image data buffering unit is configured for inputting source image data to each multiply-accumulator, the filter coefficient buffering unit is configured for broadcasting filter coefficients corresponding to the source image data to the multiply-accumulators; and the multiply-accumulator is configured for performing multiply-accumulation operation on the source image data and the filter coefficients, and outputting the multiply-accumulation result every F clocks. The interpolation apparatus of the present invention is reconfigurable and can support interpolation filters with any order, so it is universal.