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

• 批准号: 7340832
• 负责人: CAROL J BOUSHEY
• 金额: $ 45.17万
• 依托单位: PURDUE UNIVERSITY
• 依托单位国家: 美国
• 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/7340832
• 关键词: Accounting; Address; Adult; Agreement; Apple; Area; Biological Markers; Calcium; Camping; Canned Foods; Cellular Phone; Cigarette; Clinical; Collection; Computer information processing; Computer software; Computers; Condition; Daily; Data; Databases; Development; Devices; Diet; Dietary Assessment; Dietary intake; Disease; Disease regression; 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; Standards of Weights and Measures; Target Populations; Techniques; Technology; Telephone; Testing; Time; Translating; Uncertainty; United States National Institutes of Health; Validation; Visual; Water; Week; Weight; Woman; Work; attenuation; base; boys; concept; day; digital; digital imaging; disorder risk; experience; food consumption; girls; image processing; improved; innovation; insight; intervention program; men; novel; novel strategies; nutritional epidemiology; programs; prototype; residence; smoking cessation; stable isotope; statistics; tool; usability; user-friendly; ward

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）： 饮食摄入量为预防安装干预计划提供了一些最有价值的见解。但是，准确评估饮食是有问题的。将技术浸入移动电话（手机）中，具有更高的分辨率图片，改善的存储器能力和更快的处理器，允许这些设备以前无法处理信息。该项目通过使用手机捕获以电子方式提交研究人员的视觉和记录细节来解决RFA-CA-07-032的几个目标；减轻受访者负担；并提供对养分，食物和补充摄入量的准确估计。为了充分解决这些挑战，研究团队组装了电气工程，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，实施和评估移动电话食品记录（MPFR），这将转化为成人每日食物和营养摄入量的准确描述。我们的第一个步骤包括开发用于与数字照片一起使用的成像软件，这些软件将估计消耗的食物，FNDDS营养数据库的修改以及用户友好的接口的开发。移动电话在世界范围内广泛使用，可以提供一种独特的机制来收集饮食信息，从而减轻记录保管员的负担。食物图片可以用多种输入方法标记，这些方法将项目链接起来，以进行图像处理和分析以量化所消耗的食物。我们计划在使用MPFR在受控条件下使用MPFR的同时招募成年人的样本，以消耗精确的成分，以帮助量化与食物和营养产量相关的误差。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。在21至70 y之间的103个自由生活成年人的方便样本将参与验证阶段，在该阶段将在7天内用双重标记的水测量总能量，并与MPFR估计的7天的总能量摄入量相比。预计该项目的结果将是一种创新工具，可用于人群和临床研究以提供准确的饮食摄入数据。