초록 ▼

An array of photosensitive sensors each has a storage element to store a pixel value. A repeating fixed pattern noise correction module may be coupled to the photosensitive sensors to correct a repeating fixed noise pattern associated with the stored pixel values. In addition, a non-repeating fixed

An array of photosensitive sensors each has a storage element to store a pixel value. A repeating fixed pattern noise correction module may be coupled to the photosensitive sensors to correct a repeating fixed noise pattern associated with the stored pixel values. In addition, a non-repeating fixed pattern noise hardware correction module may be coupled to the image sensor to correct a non-repeating fixed pattern noise associated with the pixel values stored in the plurality of elements. In a specific embodiment, one or both of the repeating fixed pattern noise correction module and the non-repeating fixed pattern noise hardware correction module are integrated onto a common substrate with the photosensitive sensors, and can comprise tables to identify specific fixed pattern noise locations.

대표청구항 ▼

What is claimed is: 1. An imaging device comprising: an array of photosensitive sensors having N columns, each sensor of the array of photosensitive sensors having a storage element to store a pixel value; a repeating Fixed Pattern Noise (FPN) correction module operably coupled to the array of phot

What is claimed is: 1. An imaging device comprising: an array of photosensitive sensors having N columns, each sensor of the array of photosensitive sensors having a storage element to store a pixel value; a repeating Fixed Pattern Noise (FPN) correction module operably coupled to the array of photosensitive sensors to correct a repeating fixed noise pattern associated with pixel values to be stored in the array of photosensitive sensors, the FPN correction module comprising a first table of M records, where M is less than N and each record of the M records is programmable to correspond to one of the N columns; and a non-repeating FPN correction hardware module operably coupled to the array of photosensitive sensors to correct a non-repeating fixed noise pattern associated with the pixel values to be stored in the array of photosensitive sensors. 2. The imaging device of claim 1, wherein M is less than or equal to the square root of N. 3. The imaging device of claim 2, wherein the non-repeating FPN correction hardware module is integrated onto a common substrate with the array of photosensitive sensors. 4. The imaging device of claim 3, wherein the repeating FPN correction module is integrated onto a common substrate with the array of photosensitive sensors. 5. The imaging device of claim 2, wherein, each record of the first table comprises a first storage location to store an address identifying a repeating error location, and a second storage location to store an error value identifying a repeating fixed noise pattern error associated with the repeating error location. 6. The device of claim 5, wherein the non-repeating FPN correction module comprises a second table to store a plurality of records, each record of the second table comprising a third storage location to store an address identifying a non-repeating error location, and a third storage location to store an error value identifying a non-repeating fixed noise pattern error associated with the non-repeating error location. 7. The device of claim 2, wherein the non-repeating FPN correction hardware module comprises a second table to store a plurality of records, each record of the second table comprising a first storage location to store an address identifying a non-repeating error location, and a second storage location to store an error value identifying a non-repeating fixed noise pattern error associated with the non-repeating error location. 8. The device of claim 2, further comprising a parsing module to parse a table identifying FPN error locations and values. 9. The device of claim 8, wherein the parsing module comprises binary search logic to parse the table. 10. The device of claim 2, wherein the photosensitive sensors comprise image sensors. 11. The device of claim 2, wherein each storage element stores a digital value. 12. The device of claim 2, wherein each storage element stores an analog value. 13. A system comprising: a repeating fixed pattern noise correction module associated with an array of photosensitive sensors having N columns, the repeating fixed pattern noise correction module comprising a table of M records, where M is less than N and each of the M records is programmable to correspond to one of the N columns; and a non-repeating fixed pattern noise correction module integrated onto a common substrate with the repeating fixed pattern noise correction module. 14. The system of claim 13, wherein M is less than or equal to the square root of N. 15. The system of claim 14 wherein each record of the table comprises a first storage location to store an address identifying an error location and a second storage location to store a fixed noise patter error value associated with the error location. 16. The system of claim 15, wherein the error location comprises a repeating error location. 17. The system of claim 15, wherein the error location comprises a non-repeating error location. 18. A system comprising: an array of photosensitive sensors having N columns; and a fixed pattern noise correction module operably coupled to the photosensitive sensor, the fixed pattern noise correction module further comprising an error table comprising a plurality of tables comprising M records further comprising an address field and an error value field, wherein M is less than N and each of the M records is programmable to correspond to one of the N columns. 19. The system of claim 18, wherein M is less than or equal to the square root of N. 20. The system of claim 19 wherein the fixed pattern noise correction module is to adjust pixel values for repeating fixed pattern noise. 21. The system of claim 20 wherein the fixed pattern noise correction module is to adjust pixel values for non-repeating fixed pattern noise. 22. The system of claim 19 wherein the fixed pattern noise correction module is to adjust pixel values for non-repeating fixed pattern noise. 23. The system of claim 19, wherein the fixed pattern noise correction module and the photosensitive sensor are integrated on a common substrate. 24. The system of claim 19, wherein the photosensitive sensor comprises a complementary metal oxide semiconductor photosensitive sensor. 25. A method comprising: receiving at an input node a first address location associated with a first pixel storage location; wherein the first address location identifies a first column comprising a first plurality of pixel storage locations and wherein the first column is a column of an array of pixel storage locations having N columns; receiving at the input node a second address location associated with a second pixel storage location, wherein the second address location identifies a second column comprising a second plurality of storage locations; determining if the first address location is stored in an address field of a fixed pattern noise error table prior to receiving the second address location; the fixed pattern noise table having M records and wherein M is less than N and each of the M records is programmable to correspond to one of the N columns; and sending corrected data at an output node in response to determining that the first address location is stored in the address field, the corrected data based on a record of the fixed pattern noise error table. 26. The method of claim 25, wherein M is less than or equal to the square root of N. 27. The method of claim 26, wherein the second address location is received at the input node one pixel clock cycle after receiving the first address location at the input node. 28. The method of claim 26, wherein the second address location is received at the input node within log2(M) clock cycles after receiving the input of the first address location at the input node, where M is a number of records in the fixed pattern noise table. 29. A method comprising: receiving at an integrated device an address corresponding to a first portion of a pixel array having N columns; performing at the integrated device a binary search of an error table to determine if an error is associated with the first portion of the pixel array, the error table having M records, where M is less than N and each of the M records is programmable to correspond to one of the N columns; and sending corrected data at the integrated device in response to determining that an error is associated with the first portion of the pixel array, the corrected data based on a record of the error table. 30. The method of claim 29, wherein M is less than or equal to the square root of M. 31. The method of claim 30, wherein performing the binary search comprises performing log2(M) searches, where M is the number of records associated with the error table.