Special food picture collection system for labeling diets for primary and middle school students and labeling method

A technology for primary and secondary school students and food, applied in image enhancement, image analysis, image data processing and other directions, it can solve the problems of reduced food intake error, difficulty in estimating food amount, different ability to estimate the amount of food eaten, etc., to achieve the effect of intuitive and accurate recall

Pending Publication Date: 2018-04-24
SICHUAN UNIV
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  • Summary
  • Abstract
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Problems solved by technology

[0006] To sum up, the problem existing in the prior art is that the general people’s daily concept of food quantity stays at a relatively rough level, and it is difficult for most of the respondents to give an estimate of the quantity of food eaten during a retrospective dietary survey. Accurate estimation, it is difficult to reduce the food intake error of a certain food to within a few grams, a dozen grams, or even tens of grams; and different people have different ability to estimate the amount of food eaten; for children and adolescents, due to With a relatively low level of education and limited cognitive ability, it is more difficult to estimate the amount of food than the general population; and it is difficult to accurately estimate the weight of food based on the visual impression of food intake in memory

Method used

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  • Special food picture collection system for labeling diets for primary and middle school students and labeling method

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Embodiment 1

[0047]Put the bowls used in daily life on the background table covered with coordinate paper (there is also coordinate paper placed on the side of the background table); a standard scale is placed next to it for reference; These elements are composed to take pictures to obtain a color static image picture; then mark the size (diameter and height) of the bowl on the corresponding position of the static image picture; then print the still image picture on paper or other suitable carriers , to obtain a food map for evaluating the size of the bowl in memory.

Embodiment 2

[0049] Put the glass water cups used in daily life on the background table covered with coordinate paper (there is also coordinate paper placed on the side of the background table); there is a standard scale beside it for reference; under the irradiation of a certain intensity of light, from the front to the top Take pictures of these elements to obtain a color static image picture; then mark the size (diameter and height) of the cup on the corresponding position of the static image picture; then print the still image picture on paper or other suitable carriers Above, a food map was obtained for assessing the size of drinking glasses in memory.

Embodiment 3

[0051] Put 200g of rice (cooked) into figure 1 Among the bowls mentioned in , place the bowl on the background table covered with coordinate paper (there is also a coordinate paper placed on the side of the background table); a standard scale is placed beside it for reference; under the irradiation of a certain intensity of light, the previous Take photos of these elements in the upper direction to obtain a color static image picture; then mark the weight data of rice on the corresponding position of the static image picture; then print the static image picture on paper or other suitable carriers to obtain A food map for assessing the weight of a bowl of rice in memory.

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Abstract

The invention belongs to the retrospective diet survey field and discloses a special food picture collection system for labeling diets for primary and middle school students and a labeling method. According to the labeling method, a ruler is arranged beside tableware as a fixed reference object; the diameters or heights of tableware of different sizes are recorded through photography or video shooting, and the diameters or heights of the tableware are labeled in obtained images; and measured lengths / diameters and heights of food are labeled in the obtained images, and comparative analysis is performed. The system includes an image pick-up system, a picture system, tableware, and a ruler. According to the system and the labeling method of the present invention, the commonly used fixed tableware is adopted, and background coordinates of a certain scale and the by-the-side ruler are used as reference, and therefore, children and adolescents can establish thinking connections between appearances of certain food and the corresponding weights of the food so as to accurately recall and estimate the weight of most food in the their memories.

Description

technical field [0001] The invention belongs to the field of retrospective dietary investigation, and in particular relates to a special food map system and marking method for marking primary and middle school students' diets. Background technique [0002] The impact of dietary nutrition on the health of children and adolescents has attracted more and more attention. The dietary survey is an important means to fully understand the dietary structure of children and adolescents, and is the basis for studying the relationship between nutrition and health. The dietary survey can calculate the daily intake of various nutrients and calories per person and the relationship between various nutrients through the investigation of the daily intake of various foods of a certain group of people or an individual, and according to the surveyed The physical condition of the patient is compared with the Dietary Reference Intakes (DRIs), so as to understand whether the food mix is ​​reasonab...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G16H20/60G06T7/00
CPCG06T7/0002G06T2207/30204G06T2207/10004
Inventor 成果张啸龚云辉全立明赵欣然赵莉
Owner SICHUAN UNIV
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