Improving Dietary Assessment Methods Using the Cell Phone and Digital Imaging

使用手机和数字成像改进饮食评估方法

基本信息

批准号：
7672426
负责人：
CAROL J BOUSHEY
金额：
$ 52.99万
依托单位：
PURDUE UNIVERSITY
依托单位国家：
美国
项目类别：
财政年份：
2007
资助国家：
美国
起止时间：
2007-08-10 至 2011-07-31
项目状态：
已结题

来源：
https://reporter.nih.gov/project-details/7672426
关键词：
Accounting Address Adult Agreement Apple Area Biological Markers Calcium Camping Canned Foods Cellular Phone Cigarette Clinical Collection Computer software Computers Data Databases Development Devices Diet Dietary Assessment Dietary intake Disease Eating Electrical Engineering Energy Intake Energy Metabolism Environment Environmental Exposure Feedback Food Food Supplements Goals Hand Hour Image Individual Information Sciences Instruction Intake Interviewer Label Learning Life Link Measurement Measures Memory Metabolic Methods Modification Nutrient Outcome Output Personal Digital Assistant Phase Population Prevention Recovery Recruitment Activity Research Research Personnel Resolution Respondent Running Sampling Smoker Smoking Staging Target Populations Techniques Technology Telephone Testing Time Translating Uncertainty United States National Institutes of Health Validation Visual Water Weight Woman Work attenuation base boys digital digital imaging disorder risk experience food consumption girls image processing improved information processing innovation insight intervention program meetings men novel novel strategies nutritional epidemiology programs prototype residence smoking cessation stable isotope statistics tool usability user-friendly ward

项目摘要

DESCRIPTION (provided by applicant): Dietary intake provides some of the most valuable insights for mounting intervention programs for prevention. However, accurate assessment of diet is problematic. Immerging technology in mobile- telephones (cell phones) with higher resolution pictures, improved memory capacity, and faster processors, allow these devices to process information not previously possible. This project addresses several objectives of RFA-CA-07-032 by using cell phones to capture both visual and recorded detail that is electronically submitted to the researcher; eases respondent burden; and provides accurate estimates of nutrient, food, and supplement intakes. To adequately address these challenges, the research team assembled represents expertise in electrical engineering, computers, information science, nutritional epidemiology, stable isotopes, and statistics. Our goal is to develop, implement, and evaluate a mobile telephone food record (mpFR) that will translate to an accurate account of daily food and nutrient intake among adults. Our first steps include development of imaging software for use with digital photographs that will estimate quantities of foods consumed, modification of the FNDDS nutrient database, and development of user-friendly interfaces. Mobile telephones are widely used throughout the world and can provide a unique mechanism for collecting dietary information that reduces burden on record keepers. Pictures of food can be marked with a variety of input methods that link the item for image processing and analysis for quantification of food consumed. We plan to recruit a sample of adults to consume meals of precisely known composition while using the mpFR under controlled conditions to aid with quantifying the error associated with the food and nutrient output. The users of the mpFR under these controlled conditions will provide feedback for improving the accuracy and ease of use of the mpFR. A convenient sample of 103 free-living, healthy adults between 21 and 70 y will participate in the validation phase where total energy expenditure will be measured over 7 days with doubly labeled water and compared to total energy intake over the same 7 days as estimated from the mpFR. It is anticipated that the outcome of this project will be an innovate tool that can be used in population and clinical based studies to provide accurate dietary intake data.

描述（由申请人提供）：膳食摄入量为制定预防干预计划提供了一些最有价值的见解。然而，准确评估饮食是有问题的。将技术融入移动电话（手机）中，具有更高分辨率的图片、更高的内存容量和更快的处理器，使这些设备能够处理以前不可能的信息。该项目通过使用手机捕获视觉和记录的细节并以电子方式提交给研究人员来实现 RFA-CA-07-032 的几个目标；减轻受访者的负担；并提供营养素、食物和补充剂摄入量的准确估计。为了充分应对这些挑战，组建的研究团队代表了电气工程、计算机、信息科学、营养流行病学、稳定同位素和统计学方面的专业知识。我们的目标是开发、实施和评估手机食物记录 (mpFR)，它将转化为成人每日食物和营养摄入量的准确记录。我们的第一步包括开发用于数码照片的成像软件，以估计消耗的食物数量、修改 FNDDS 营养数据库以及开发用户友好的界面。移动电话在世界各地广泛使用，可以提供独特的机制来收集饮食信息，从而减轻记录员的负担。食物图片可以用多种输入方法标记，这些输入方法将项目链接起来进行图像处理和分析，以量化所消耗的食物。我们计划招募成年人样本来食用成分精确已知的膳食，同时在受控条件下使用 mpFR 来帮助量化与食物和营养输出相关的误差。在这些受控条件下 mpFR 的用户将提供反馈以提高 mpFR 的准确性和易用性。 103 名 21 岁至 70 岁之间自由生活的健康成年人的方便样本将参与验证阶段，其中将使用双标签水测量 7 天内的总能量消耗，并与估计的同一 7 天内的总能量摄入量进行比较MPFR。预计该项目的成果将是一种创新工具，可用于人口和临床研究，以提供准确的膳食摄入数据。