Image processing device with a CSA accumulator for improving image quality and related method
AssigneePrinceton Technology Corporation
InventorHung-Lun Chien
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Abstract
An image processing device includes a CSA accumulator, a first register, a CPA adder and a central processing unit. The CSA accumulator includes a first input for receiving a processing signal and a second input for receiving a previous result of the CSA accumulator. The first register includes an input coupled to the CSA accumulator and an output coupled to the second input end of the CSA accumulator. The CPA adder is coupled to the first register. The CPA adder is used for processing an addition operation on all carries outputted from the first register. The central processing unit includes an input coupled to the CPA adder and an output end for outputting an output signal comprising processed image measurement data.
Claims7
An image processing device for improving image quality with a Carry-Save-Add (CSA) accumulator, the image processing device comprising:
- a CSA accumulator including a first input for receiving a processing signal and a second input for receiving a previous result of the CSA accumulator, the CSA accumulator used for processing a carry-save addition;
- a first register including an input coupled to the CSA accumulator and an output coupled to the second input of the CSA accumulator;
- a Carry-Propagate-Adder (CPA) coupled to the first register, the CPA used for processing an addition operation on all carries in a frame during a vertical blank period of a vertical synchronization signal;
- a second register including an input coupled to the CPA, a control end for receiving the vertical synchronization signal and an output for outputting a result of the CPA;
- and
- a central processing unit (CPU) including an input coupled to the second register and an output for outputting an output signal comprising a processed image measurement data.
Dependencies are inferred from the claim text.