CN106649474B - Storage method of infrared image data - Google Patents
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- CN106649474B CN106649474B CN201610862396.XA CN201610862396A CN106649474B CN 106649474 B CN106649474 B CN 106649474B CN 201610862396 A CN201610862396 A CN 201610862396A CN 106649474 B CN106649474 B CN 106649474B
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- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/70—Information retrieval; Database structures therefor; File system structures therefor of video data
- G06F16/71—Indexing; Data structures therefor; Storage structures
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- G06F16/50—Information retrieval; Database structures therefor; File system structures therefor of still image data
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Abstract
The invention relates to a storage method of infrared image data. The storage method comprises the following steps: firstly, establishing storage blocks, respectively storing the storage blocks in the storage blocks according to categories, namely file header information, a basic temperature lookup table, a frame list, frame data, a frame index, a visible light image, an audio stream, a mark list and the like; when reading the infrared image data stream and storing, storing the number of the stored infrared image data frames in a frame list storage block every time reading a frame of data, storing the size and the relative position of the frame in a frame index storage block, and storing the data of the frame in a frame data storage block; if the visible light image with the fused region or the visible light image corresponding to the infrared image exists, the position of the infrared image in the corresponding visible light image and JPEG compressed image data of the visible light image are stored in a visible light image storage block; if the infrared image data stream contains the mark information, uniformly storing the infrared image data stream in a mark list storage block; the infrared image data may be voice annotated, with the annotated voice being stored in an audio stream storage block. The invention can store single infrared image data and infrared image video stream, can acquire visible light images with fused regions or corresponding regions, can quickly position and read required images, and unifies various functions contained in the infrared image data.
Description
Technical Field
The invention relates to the field of data storage, in particular to a storage method for infrared image data. .
Background
As a non-contact temperature measurement technology, thermal infrared imagers have been widely used in military applications and increasingly paid attention in the field of civilian use. The infrared image data cannot be compressed and stored in a conventional image storage mode due to the fact that the infrared image data carries accurate temperature information, otherwise, the temperature information is compressed to be consistent and cannot accurately reflect the temperature information of the target area. The present invention therefore proposes a method of storing infrared image data to change this situation. The method can store single infrared image data and infrared image video streams, can acquire visible light images with fused areas or corresponding areas, can quickly position and read the required images, and unifies various functions contained in the infrared image data.
Disclosure of Invention
At the present stage that infrared image storage is not standardized, the invention provides an infrared image data storage method, and by adopting the storage method, infrared and visible light images can be quickly positioned, so that subsequent analysis and display are facilitated.
In order to achieve the above object, the present invention provides a method for storing infrared image data, comprising the following steps: establishing a data storage block: and storing the file header information, the basic temperature lookup table, the frame list, the frame data, the frame index, the visible light image, the audio stream and the mark list in the storage block according to the types. The mark list is divided into rectangle marks, ellipse marks, broken line marks, point marks and polygon marks. When reading the infrared image data stream and storing the infrared image data stream, firstly adding file head information and a basic temperature lookup table; the file header information comprises a thermal imager name, a thermal imager serial number, a color palette, environment parameters, storage categories, visible light categories and the like; the basic temperature lookup table refers to a corresponding array of analog values and temperature values, and the analog values correspond to initial values of the environmental parameters. When reading a frame of infrared image data stream, adding 1 to the number of frames in the frame list storage block, storing the infrared analog data of the frame in the frame data storage block, and storing the size and the relative position of the frame in the frame index storage block. If the visible light type in the file header information storage block indicates that the visible light type comprises visible light, storing the position of the infrared image in the corresponding visible light image and JPEG compressed image data of the visible light image in the visible light image storage block; and if the visible light type in the file header information storage block indicates that the visible light is not contained, not saving the information in the visible light image storage block. If the infrared image data stream contains the mark information, uniformly storing the infrared image data stream in a mark list storage block; different mark information such as rectangular mark and oval mark are stored in different memory blocks respectively. Voice annotations may be added or modified while reading or after the infrared image data stream of each frame is stored, and the annotated voices are stored in the audio stream storage block.
According to the embodiment of the present invention, the creating of the data storage blocks refers to setting an identifier for each storage block, for example, setting the file header information as IRFH, creating a file stream, and writing the file stream in a reserved space after each identifier. Where locations for quickly finding relevant memory blocks are identified.
According to an embodiment of the present invention, the storage category of the file header information therein refers to whether to save as one image or a sequence of images. Wherein the visible light category refers to whether a visible light image is included or not included.
According to the embodiment of the invention, if the visible light type in the file header information indicates that the visible light is contained, the size and the relative position of the infrared simulation data frame and the visible light are stored; if the indication does not contain visible light, only the size and relative position of the infrared analog data frame is stored. Where relative position refers to an index in the file stream.
According to the embodiment of the invention, the storing of the position of the infrared image in the corresponding visible light image in the visible light image storage block means that if the thermal infrared imager and the visible light camera are registered, the registered position information is saved; and if the thermal infrared imager and the visible light imager are not registered, storing the position information as (0, 0).
According to an embodiment of the invention, wherein the infrared image data stream comprises marker information, wherein the marker information is used for marking a highest analog value, a lowest analog value and an average analog value of the infrared image data in the marker.
According to an embodiment of the invention, the voice annotation is added or modified when each frame of the infrared image data stream is read or after the storage is finished. When the voice annotation is modified, the original voice annotation needs to be deleted and replaced by a new voice annotation.
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FIG. 1 is a flow chart of a storage method according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention are described in further detail below with reference to the embodiments and the drawings. Again, the exemplary embodiments of the present invention and the description thereof are only for explaining the present invention, but not as limiting the present invention.
The invention provides the infrared image data storage method, so that the storage unification of the single image and the image video is realized, the visible light image with fused areas or corresponding to infrared can be obtained, and the required image can be quickly positioned and read.
Fig. 1 is a flowchart of a method for storing infrared image data according to an embodiment of the present invention. As shown in fig. 1, the present invention provides a method for storing infrared image data, comprising the steps of:
s1, establishing a data storage block: and storing the file header information, the basic temperature lookup table, the frame list, the frame data, the frame index, the visible light image, the audio stream and the mark list in the storage block according to the types. The mark list is divided into rectangle marks, ellipse marks, broken line marks, point marks and polygon marks.
S2, when reading the infrared image data flow and storing, firstly adding the file head information and the basic temperature lookup table; the file header information comprises a thermal imager name, a thermal imager serial number, a color palette, environment parameters, storage categories, visible light categories and the like; the basic temperature lookup table refers to a corresponding array of analog values and temperature values, wherein the analog values correspond to initial values of the environmental parameters. Wherein the storage category of the file header information refers to whether to save as one image or a sequence of images. Wherein the visible light category refers to whether a visible light image is included or not included.
And S3, adding 1 to the frame number in the frame list storage block when reading a frame of infrared image data stream, storing the infrared analog data of the frame in the frame data storage block, and storing the size and the relative position of the frame in the frame index storage block. If the visible light type in the file header information storage block indicates that the visible light type comprises visible light, storing the position of the infrared image in the corresponding visible light image and JPEG compressed image data of the visible light image in the visible light image storage block; and if the visible light type in the file header information storage block indicates that the visible light is not contained, not saving the information in the visible light image storage block. If the visible light type in the file header information indicates that the visible light is contained, storing the size and the relative position of the infrared simulation data frame and the visible light; if the indication does not contain visible light, only the size and relative position of the infrared analog data frame is stored. Where relative position refers to an index in the file stream. The infrared image storage block is used for storing the position of the infrared image in the corresponding visible image, namely the registered position information is stored if the thermal infrared imager and the visible camera are registered; and if the thermal infrared imager and the visible light imager are not registered, storing the position information as (0, 0).
S4, if the infrared image data stream contains the mark information, the infrared image data stream is stored in a mark list storage block; different mark information such as rectangular mark and oval mark are stored in different memory blocks respectively. Voice annotations may be added or modified while reading or after the infrared image data stream of each frame is stored, and the annotated voices are stored in the audio stream storage block. Wherein the voice annotation is added or modified when each frame of infrared image data stream is read or after the storage is finished. When the voice annotation is modified, the original voice annotation needs to be deleted and replaced by a new voice annotation.
In summary, the method for storing infrared image data provided by the invention realizes the unified storage of single images and image videos, and can acquire visible light images with fused regions or corresponding to infrared, and can quickly position and read the required images.
Claims (7)
1. A method for storing infrared image data is characterized by comprising the following steps:
establishing a data storage block: respectively storing the file header information, a basic temperature lookup table, a frame list, frame data, a frame index, a visible light image, an audio stream and a mark list in a storage block according to categories, wherein the mark list is divided into an ellipse mark, a broken line mark, a point mark and a polygon mark;
when reading the infrared image data stream and storing the infrared image data stream, firstly adding file head information and a basic temperature lookup table; the file header information comprises a thermal imager name, a thermal imager serial number, a color palette, environment parameters, a storage category and a visible light category; the basic temperature lookup table refers to a corresponding array of analog values and temperature values, and the analog values correspond to initial values of the environmental parameters;
when reading a frame of infrared image data stream, adding 1 to the number of frames in a frame list storage block, storing infrared analog data of the frame in a frame data storage block, and storing the size and the relative position of the frame in a frame index storage block, if the visible light type in a file header information storage block indicates that the visible light type contains visible light, storing the position of the infrared image in the corresponding visible light image and JPEG compressed image data of the visible light image in a visible light image storage block; if the visible light type in the file header information storage block indicates that the visible light is not contained, the information is not stored in the visible light image storage block;
if the infrared image data stream contains the mark information, uniformly storing the infrared image data stream in a mark list storage block; different marking information is respectively stored in different storage blocks;
and adding or modifying a voice annotation when reading or storing each frame of infrared image data stream, wherein the annotated voice is stored in the audio stream storage block.
2. The method of claim 1, wherein the establishing of the data storage blocks comprises setting an identifier for each storage block, for example, setting the header information of the file to IRFH, and establishing a file stream, and writing the file stream in a reserved space after each identifier, wherein the identifier is used to quickly find the location of the associated storage block.
3. A method of storing infrared image data according to claim 1, wherein the storage category of the file header information refers to whether to save as an image or a sequence of images, wherein the visible light category refers to whether to include visible light images or not.
4. The method according to claim 1, wherein said frame index storage block stores the size and relative position of the infrared analog data frame and the visible light if the frame index storage block contains the visible light, wherein the relative position refers to an index in the file stream.
5. The method for storing infrared image data as claimed in claim 1, wherein the storing the position of the infrared image in the corresponding visible light image in the visible light image storage block means storing the registered position information if the thermal infrared imager and the visible light camera are registered; and if the thermal infrared imager and the visible light imager are not registered, storing the position information as (0, 0).
6. A method as claimed in claim 1, wherein the ir image data stream contains flag information for marking the highest analog value, the lowest analog value and the average analog value of the ir image data.
7. The method according to claim 1, wherein the voice note is added or modified when reading or after finishing the storage of each frame of infrared image data stream, and when modifying the voice note, the original voice note is deleted and replaced with a new voice note.
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| CN107135365B (en) * | 2017-05-19 | 2019-05-21 | 湖北三江航天红林探控有限公司 | A kind of high speed image missile-borne data recording equipment |
| CN109618172A (en) * | 2018-05-07 | 2019-04-12 | 杭州新瀚光电科技有限公司 | Infrared image storage transmission compression algorithm |
| CN110853108B (en) * | 2019-10-11 | 2020-07-10 | 中国南方电网有限责任公司超高压输电公司天生桥局 | Compression storage method of infrared chart data |
| CN111026708B (en) * | 2019-11-25 | 2023-04-14 | 烟台艾睿光电科技有限公司 | Thermal imager image file storage method, device, equipment and storage medium |
| CN111651630B (en) * | 2020-05-31 | 2023-12-26 | 广西电网有限责任公司南宁供电局 | Method for improving storage efficiency of acquisition dynamic infrared thermal map by adopting key data frame |
| CN112004093B (en) * | 2020-09-02 | 2022-07-12 | 烟台艾睿光电科技有限公司 | Infrared data compression method, device and equipment |
| CN112199358B (en) * | 2020-09-04 | 2022-12-09 | 天津津航技术物理研究所 | Infrared image-oriented database management method and system |
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