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Method and device for determining size of object to be measured in image and storage medium

An in-image, object technology, used in image analysis, image data processing, instruments, etc., can solve the problems that the human eye is difficult to quickly identify the laser point, the recognition speed is slow, and the recognition accuracy is low.

Pending Publication Date: 2022-05-17
THIRD INST OF OCEANOGRAPHY MINIST OF NATURAL RESOURCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] At present, the method of measuring with laser dot arrays has been widely used in the observation of camera brackets, and has obtained quite a lot of biological pictures. Because the laser dots are very small, it is often difficult for the human eye to quickly identify the laser dots to obtain the position of the laser dots.
Traditional visual recognition of laser points has the problems of consuming a lot of labor costs, low recognition accuracy and slow recognition speed

Method used

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  • Method and device for determining size of object to be measured in image and storage medium
  • Method and device for determining size of object to be measured in image and storage medium
  • Method and device for determining size of object to be measured in image and storage medium

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Embodiment 1

[0042] Such as figure 1 Shown is a flow chart of determining the size of an object to be measured in an image according to an embodiment of the present invention, showing specific implementation steps of the method, including:

[0043] S1, acquiring the image to be measured;

[0044] S2. Extracting pixel points satisfying preset conditions in the image to be measured as first feature points and second feature points;

[0045] S3. Calculate the pixel distance between the first feature point and the second feature point;

[0046] S4. Obtain a physical distance per pixel according to the pixel distance and the physical distance between the first feature point and the second feature point;

[0047] S5. Measure the pixel length of the object to be measured contained in the image to be measured, and obtain the size of the object to be measured according to the pixel length and the physical distance of the unit pixel.

[0048] Specifically, the step S2 includes:

[0049] S21. Dec...

Embodiment 2

[0063] This embodiment shows the actual scene where the present invention is applied in the field of bathymetry research, and the present invention realizes the measurement of the individual size of marine organisms in biological pictures. Such as figure 2 Shown is a flow chart of measuring the size of deep-sea organisms in an embodiment of the present invention, showing the specific implementation steps of the method, including:

[0064] S201. Acquire an original image.

[0065] In this example, the original image is obtained as the image to be measured, such as image 3 Shown is a raw image containing two laser spots and marine life for an embodiment of the invention, image 3 Markers 1 and 2 indicate the two laser spots contained in the original image.

[0066] S202. Decompose the original image to obtain a three-color grayscale image.

[0067] In this example, the original image is decomposed according to the three colors of RGB, and the grayscale image of the red cha...

Embodiment 3

[0100] The present invention also provides a device for determining the size of an object to be measured in an image, such as Figure 10 As shown, the device includes a processor 1001, a memory 1002, a bus 1003, and a computer program stored in the memory 1002 and operable on the processor 1001, the processor 1001 includes one or more processing cores, and the memory 1002 passes through the bus 1003 Connected to the processor 1001, the memory 1002 is used to store program instructions, and the processor implements the steps in the above method embodiments of the present invention when executing the computer program.

[0101] Further, as an executable solution, the device for determining the size of the object to be measured in the image may be computing devices such as desktop computers, notebooks, palmtop computers, and cloud servers. A system / electronic device may include, but is not limited to, a processor, memory. Those skilled in the art can understand that the compositi...

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Abstract

The invention discloses a method and device for determining the size of an object to be measured in an image and a storage medium. The method comprises the following steps: acquiring a to-be-measured image; extracting pixel points satisfying a preset condition in the to-be-measured image as a first feature point and a second feature point; calculating a pixel distance between the first feature point and the second feature point; obtaining the physical distance of the unit pixel according to the pixel distance and the physical distance between the first feature point and the second feature point; and measuring the pixel length of the to-be-measured object contained in the to-be-measured image, and obtaining the size of the to-be-measured object according to the pixel length and the physical distance of the unit pixel. The method and the device for determining the size of the object to be measured in the image can be widely applied to deep-sea organism monitoring research and deep-sea organism size measurement, and have the advantages of automation, accuracy, rapidness and the like.

Description

technical field [0001] The invention relates to the technical field of image detection, in particular to a method, device and storage medium for determining the size of an object to be measured in an image. Background technique [0002] Due to the lack of solar radiation and high water pressure, the deep sea is often an extreme environment of low temperature, darkness and high pressure. Due to the inability to carry out photosynthesis in the deep sea, an ecosystem completely different from that in the surface layer of the ocean is formed. In recent decades, a large number of extensive investigations and researches on deep-sea ecosystems have been carried out internationally. The International Census of Marine Life (Census of Marine Life, CoML, 2001-2010) initiated by the Sloan Foundation of the United States is a program aimed at the systematic research of global marine biodiversity and related control processes. More than 6,000 species have subverted people's understandin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/60G06T7/187
CPCG06T7/60G06T7/187
Inventor 王维波靖春生何雪宝贾村
Owner THIRD INST OF OCEANOGRAPHY MINIST OF NATURAL RESOURCES
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