Correction method based on segment data and block data
A technology of segmented data and correction method, applied in the field of infrared image processing, which can solve the problems of image quality deterioration and poor image quality.
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Embodiment 1
[0105] The present invention proposes a correction method based on segmented data and block data, which can broaden the operating temperature range of the core system, improve image quality, enable the core system to have a wider range of applications, and solve more problems. Such as figure 1 As shown, the following setup structure is adopted in particular: the following specific steps are included:
[0106] 1) Obtain the image information of the pot cover under different temperature conditions; the specific method is:
[0107] Face the detector target to a uniform background, and the standby core system is at a temperature of T 0 ~T n After working stably in the environment, the image acquisition and storage module of the pot cover respectively stores the detector output V at each temperature G0 ~V Gn , that is, the image of the pot lid is stored in the FLASH, and the temperature T of the detector shell is recorded at the same time b0 ~T bn .
[0108] 2) Measure the h...
Embodiment 2
[0113] This embodiment is further optimized on the basis of the above-mentioned embodiments, further to better realize the present invention, such as figure 1 As shown, the following setting method is adopted in particular: in the step 3), the calculation of the non-uniformity correction parameter K is realized by the following formula:
[0114] in, Represents the average value of one frame of image of high temperature output (response to blackbody high temperature) VH, Indicates the average value of a frame of image of the low temperature output (response to the blackbody low temperature) VL, VH m and VL m Respectively represent when the black body temperature is high temperature TH and low temperature TL, the response of the mth pixel detector in a frame of M×N image minus the value of the pot cover at the corresponding detector temperature, M represents the number of rows, N represents the number of columns, K m Indicates the non-uniformity correction parameters for...
Embodiment 3
[0116] This embodiment is further optimized on the basis of any of the above embodiments, further to better realize the present invention, such as figure 1 As shown, the following setting methods are adopted in particular: said step 4) includes the following specific steps:
[0117] 4.1) The parameter calling module reads and stores the pot lid image data and the non-uniformity correction parameter K stored in the first memory (FLASH) into the second memory (SDRAM);
[0118] 4.2) The second storage (SDRAM) reading module reads the required two frames of pot lid image data in the second storage (SDRAM) according to the detector temperature T of the real-time input, and reads the image data in the second storage (SDRAM). Non-uniformity correction parameter K;
[0119] 4.3) The first cache module (FIFO cache module 1) caches the original image data output by the detector, and the second cache module (FIFO cache module 2) caches the second storage (SDRAM) read module from the secon...
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