CN-121987176-A - Cross-mode calibration system, method, equipment and medium for infrared thermal imaging

CN121987176ACN 121987176 ACN121987176 ACN 121987176ACN-121987176-A

Abstract

The application discloses a cross-mode calibration system, method, equipment and medium for infrared thermal imaging, which relate to the technical field of image processing and comprise a passage selection module, an execution module, a blood flow intervention module and a synchronous imaging module, wherein the passage selection module is used for selecting a target developer conveying passage leading to a target donor artery according to preset passage selection conditions and sending control instructions to the execution module, the execution module is used for responding to the control instructions and conveying developer through the target developer conveying passage according to conveying control parameters, the blood flow intervention module is used for controlling the blood flow state of a target blood vessel section during conveying and controlling the developer to form local filling in the target blood vessel section, the synchronous imaging module is used for synchronously acquiring a fluorescent angiography image sequence and an infrared thermal imaging sequence of the target blood vessel section during the local filling, and the data processing and calibration module is used for calibrating or calibrating imaging parameters of the infrared thermal imaging sequence based on the fluorescent angiography image sequence. Ensuring that the reference sequence and the sequence to be calibrated keep consistent in time from the acquisition source.

Inventors

LIN JINGHUI
LIN JIAQI
GAO XIANG
ZHANG GUOGUO
WEI JIE
XU HAITAO
Ni Haojin

Assignees

宁波大学附属第一医院(宁波市第一医院)

Dates

Publication Date: 20260508
Application Date: 20260409

Claims (10)

1. A cross-mode calibration system for infrared thermal imaging is characterized by comprising a passage selection module, an execution module, a blood flow intervention module, a synchronous imaging module and a data processing and calibration module, wherein, The path selection module is used for selecting a target developer conveying path leading to a target donor artery according to preset path selection conditions, and generating and issuing a control instruction to the execution module; the execution module is used for responding to the control instruction and conveying the developer through the target developer conveying passage according to the conveying control parameter; The blood flow intervention module is used for controlling the blood flow state of a target blood vessel segment during delivery so as to control the developer to form local filling in the target blood vessel segment; the synchronous imaging module is used for synchronously acquiring a fluorescent angiography image sequence and an infrared thermal imaging sequence of the target vessel segment in the process of local filling; The data processing and calibrating module is used for calibrating or calibrating imaging parameters of the infrared thermal imaging sequence based on the fluorescent angiography image sequence.
2. The cross-modality calibration system for infrared thermal imaging of claim 1, wherein the pathway selection module comprises: the path selection unit is used for selecting a target developer conveying path leading to the target donor artery from four developer conveying paths according to whether the intervention equipment and the vascular branch anatomical conditions of the target donor artery are provided in the current calibration environment.
3. The cross-modality calibration system for infrared thermal imaging of claim 2, wherein the four developer delivery passageways include a microcatheter passageway, a first donating artery branch passageway, a second donating artery branch passageway, and a donating trunk temporary passageway.
4. A cross-modality calibration system for infrared thermal imaging as claimed in claim 3, wherein the execution module includes: A first passage establishing unit for inserting a blunt needle into a small branch vessel lumen of the target donating artery when the target developer conveying passage is the first donating artery branch passage; Accordingly, the blood flow intervention module comprises: and the first intervention unit is used for driving the temporary clamp for fixing the blunt needle and the small branch blood vessel to carry out clamping operation when receiving the intervention instruction issued by the execution module so as to close the target blood vessel section and control the developer to form local filling in the target blood vessel section.
5. A cross-modality calibration system for infrared thermal imaging as claimed in claim 3, wherein the execution module includes: A second path establishing unit for inserting a blunt needle into a small branch vessel lumen of the target donating artery when the target developer conveying path is the second donating artery branch path; Accordingly, the blood flow intervention module comprises: A second intervention unit for driving the first temporary clamp, the second temporary clamp and the third temporary clamp to clamp the proximal end, the distal end and the proximal end of the small branch vessel of the target donating artery respectively so as to generate a target vessel section containing a blunt needle outlet in a vessel network; And the first clamping and releasing unit is used for driving the first temporary clamping and releasing the clamping operation on the proximal end of the target donor artery based on a first preset time sequence instruction after the developer is conveyed, driving the second temporary clamping and releasing the clamping operation on the distal end of the target donor artery based on a second preset time sequence instruction, so as to control the developer to enter the target blood vessel segment to form local filling under the driving of restoring physiological blood flow.
6. A cross-modality calibration system for infrared thermal imaging as claimed in claim 3, wherein the execution module includes: A third path establishing unit, configured to establish a delivery interface on a distal wall of the target donor artery in a clamped state when the target developer delivery path is the donor trunk temporary storage path; Accordingly, the blood flow intervention module comprises: The third intervention unit is used for driving a fourth temporary clamp to clamp the proximal end of the target donor artery before the delivery interface is established when receiving the intervention instruction issued by the execution module, and then keeping the clamping state of the fourth temporary clamp after the delivery of the developer is completed through the delivery interface so as to control the developer to be temporarily stored in the target vascular cavity; And the second clamping and releasing unit is used for driving the fourth temporary clamping and releasing operation after receiving the releasing instruction so as to control the developer to enter the target blood vessel section along with the spontaneous blood flow of the target donor artery to form local filling.
7. The cross-modality calibration system for infrared thermal imaging of claim 1, wherein the simultaneous imaging module comprises: A time synchronization unit for providing a unique time reference for the acquisition of the fluorescent angiography image sequence and the infrared thermal imaging sequence and generating a synchronization time stamp; correspondingly, the data processing and calibrating module comprises: The data processing and calibrating unit is used for taking the blood vessel outline in the fluorescent angiography image sequence as first reference information to carry out parameter calibration on a preset blood vessel segmentation algorithm according to the infrared thermal imaging sequence based on the first reference information, and/or taking the blood flow propagation direction and time sequence information in the fluorescent angiography image sequence as second reference information to carry out parameter calibration on a preset blood flow direction tracking algorithm according to the infrared thermal imaging sequence based on the second reference information.
8. A cross-modality calibration method for infrared thermal imaging, comprising: selecting a target developer conveying passage leading to a target donor artery according to a preset passage selection condition, and generating and issuing a control instruction; Responding to the control instruction and conveying the developer through the target developer conveying passage according to the conveying control parameter; controlling the blood flow state of a target vessel segment during delivery to control localized filling of the target vessel segment with the contrast agent; synchronously acquiring a fluorescent angiography image sequence and an infrared thermal imaging sequence of the target vessel segment in the local filling process; and calibrating or calibrating imaging parameters of the infrared thermal imaging sequence based on the fluorescent angiography image sequence.
9. An electronic device, comprising: A memory for storing a computer program; a processor for executing the computer program to implement the steps of the cross-modality calibration method for infrared thermal imaging as claimed in claim 8.
10. A computer readable storage medium for storing a computer program, wherein the computer program when executed by a processor implements the steps of the cross-modality calibration method for infrared thermal imaging of claim 8.

Description

Cross-mode calibration system, method, equipment and medium for infrared thermal imaging Technical Field The invention relates to the technical field of image processing, in particular to a cross-mode calibration system, a method, equipment and a medium for infrared thermal imaging. Background In the operation such as cerebral blood circulation reconstruction, the intra-operative multi-mode image fusion and the real-time blood flow assessment are important for the operation decision. The infrared thermal imaging can be used for monitoring the temperature field change of the operation field in a non-contact and continuous manner and indirectly reflecting blood flow and perfusion information, and indocyanine green fluorescence angiography (Indocyanine Green-Videoangiography, ICG-VA) can be used for directly and intuitively displaying the blood vessel structure and blood flow filling process. The two are combined, and the visual blood vessel image provided by ICG-VA is used as a reference, so that the infrared thermal imaging is calibrated and the quantization algorithm is calibrated, and the method is a key direction for improving the reliability and the application value of infrared imaging data. However, achieving efficient cross-modal calibration faces a fundamental challenge, lacking a high quality reference sequence that can be stably and reproducibly generated and that is spatially and spatially aligned with infrared thermal imaging. Currently, the only mature technique available for intraoperatively acquiring angiogram sequences is peripheral intravenous ICG-VA. However, this technique has the inherent disadvantage that ICG must be diluted by systemic circulation after intravenous injection, and then be affected by physiological fluctuations such as individual heart displacement and peripheral resistance, before it reaches the target vessel. This results in a very large variation in the arrival time, peak intensity, profile, etc. of the fluorescent signal from injection to injection, and does not provide a stable, repeatable timing reference. Since the developer reaches diffusely after systemic circulation, the development starting point of the target blood vessel is not clear, the directionality and time sequence of blood flow propagation are seriously diluted, and accurate spatial profile and clear propagation time sequence are difficult to extract as calibration reference. The development process of intravenous injection is long and uncertain, and is difficult to synchronize with the time of high precision of the specific temperature change event of the infrared thermal imaging which happens instantaneously, so that errors exist in alignment of the cross-modal data. In summary, how to obtain a reference sequence with high space-time precision and high repeatability, which is synchronous with the target mode time, is a technical problem to be solved in the field. Disclosure of Invention In view of the above, the present invention aims to provide a cross-mode calibration system, method, device and medium for infrared thermal imaging, which can obtain a reference sequence with high space-time precision and high repeatability and synchronous with the target mode time. The specific scheme is as follows: In a first aspect, the application discloses a cross-mode calibration system for infrared thermal imaging, which comprises a passage selection module, an execution module, a blood flow intervention module, a synchronous imaging module, a data processing and calibration module, The path selection module is used for selecting a target developer conveying path leading to a target donor artery according to preset path selection conditions, and generating and issuing a control instruction to the execution module; the execution module is used for responding to the control instruction and conveying the developer through the target developer conveying passage according to the conveying control parameter; The blood flow intervention module is used for controlling the blood flow state of a target blood vessel segment during delivery so as to control the developer to form local filling in the target blood vessel segment; the synchronous imaging module is used for synchronously acquiring a fluorescent angiography image sequence and an infrared thermal imaging sequence of the target vessel segment in the process of local filling; The data processing and calibrating module is used for calibrating or calibrating imaging parameters of the infrared thermal imaging sequence based on the fluorescent angiography image sequence. Optionally, the path selection module includes: the path selection unit is used for selecting a target developer conveying path leading to the target donor artery from four developer conveying paths according to whether the intervention equipment and the vascular branch anatomical conditions of the target donor artery are provided in the current calibration environment. Optionally, the four developer