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1. 发明申请

US20180027145A1 IMAGE-BASED FIELD BOUNDARY DETECTION AND IDENTIFICATION 有权
公开(公告)号：US20180027145A1
公开(公告)日：2018-01-25
申请号：US15659442
申请日：2017-07-25
申请人： ITERIS, INC.
发明人： ALEX A. KURZHANSKIY , JOHN J. MEWES , THOMAS N. BLAIR , DUSTIN M. SALENTINY
IPC分类号： H04N1/387 , G06T5/00 , G06T11/60 , G06K9/00
CPC分类号： G06K9/0063 , G06T5/002 , G06T11/60 , H04N1/3873
摘要： Detection and identification a field's boundaries is performed in a workflow based on processing images of the field captured at different times, relative to a defined seed point. Images are clipped to align with the seed point and a bounding box around the seed point, and a mask is built by extracting edges of the field from the images. The workflow floods an area around the seed point that has pixels of a similar color, using the mask as an initial boundary. The flooded area is compared to threshold parameter values, which are tuned to refine the identified boundary. Flooded areas in multiple images are combined, and a boundary is built based on the combined flooded set. Manual, interactive tuning of floodfill areas allows for a separate boundary detection and identification workflow or for refinement of the automatic boundary detection workflow.

2. 发明申请

US20150206428A1 ESTIMATION OF HOURLY TRAFFIC FLOW PROFILES USING SPEED DATA AND ANNUAL AVERAGE DAILY TRAFFIC DATA 有权
标题翻译：使用速度数据和年平均每日交通数据估算小时交通流量轮廓
公开(公告)号：US20150206428A1
公开(公告)日：2015-07-23
申请号：US14159769
申请日：2014-01-21
申请人： ITERIS, INC.
发明人： ALEX A. KURZHANSKIY
IPC分类号： G08G1/052
CPC分类号： G08G1/052 , G08G1/0112 , G08G1/0116 , G08G1/0129 , G08G1/0145
摘要： A framework for performance evaluation and active management of a transportation network infrastructure reconstructs traffic flow profiles by modeling annual average daily traffic data and collected traffic speed data to estimate an hourly traffic flow profile for a roadway segment, or link. Total daily flow for a link is derived from the corresponding annual average daily traffic data for that link, and is adjusting by the day of week and the monthly seasonal factors. An hourly flow distribution profile for a roadway link is then constructed using the traffic speed data relative to that link.
摘要翻译：交通网络基础设施的绩效评估和主动管理框架通过对年平均日流量数据和收集的交通速度数据进行建模来重构交通流量剖面，以估计道路段或链路的小时交通流量分布。链路的总日流量来源于该链路的相应的年平均日流量数据，并且按照星期几和月季节因素进行调整。然后使用相对于该链路的交通速度数据构建用于道路链路的小时流分布简档。

3. 发明申请

US20150006069A1 DATA QUALITY ASSESSMENT AND REAL-TIME EVALUATION OF GPS PROBE DATA 有权
标题翻译：数据质量评估和GPS探测数据的实时评估
公开(公告)号：US20150006069A1
公开(公告)日：2015-01-01
申请号：US14321759
申请日：2014-07-01
申请人： ITERIS, INC.
发明人： JAIMYOUNG KWON , KARL F. PETTY , ALEX A. KURZHANSKIY , ANDREW J. MOYLAN
IPC分类号： G08G1/052
CPC分类号： G08G1/052 , G08G1/0112 , G08G1/0133 , G08G1/0141
摘要： Quality assessment of probe data collected from GPS systems is performed by a system and method of determining a value of data points provided by different vendors of such data. Incoming raw probe data is initially analyzed for removal of extraneous data points, and is then mapped to roadway links and smoothed out. The resulting output is processed to determine the coverage value of data provided by a given vendor and enable a comparison between different vendors. Such a model of probe data processing also enables an evaluation of a contribution of further vendors of raw probe data to an existing dataset. Additionally, a real-time performance evaluation of continually-ingested probe data includes building historical and data count profiles, and generating output data represented by a number of data points for a specific distance within a geo-box representing a geographical area, to project a value of raw probe data for a next incremental time period.
摘要翻译：从GPS系统收集的探测数据的质量评估是通过确定这些数据的不同供应商提供的数据点的值的系统和方法进行的。最初分析接收的原始探测数据，以清除无关的数据点，然后将其映射到道路链路并进行平滑处理。处理所得到的输出以确定给定供应商提供的数据的覆盖率，并且可以在不同的供应商之间进行比较。探测数据处理的这种模型还能够使原始探测数据的其他供应商对现有数据集的贡献进行评估。此外，持续摄取的探测数据的实时性能评估包括建立历史和数据计数概况，以及生成由表示地理区域的地理位置内的特定距离的多个数据点表示的输出数据，以投影下一个增量时间段的原始探测数据的值。

4. 发明申请

US20150006068A1 TRAFFIC SPEED ESTIMATION USING TEMPORAL AND SPATIAL SMOOTHING OF GPS SPEED DATA 有权
标题翻译：使用GPS速度数据的时间和空间平滑的交通速度估计
公开(公告)号：US20150006068A1
公开(公告)日：2015-01-01
申请号：US14321754
申请日：2014-07-01
申请人： ITERIS, INC.
发明人： JAIMYOUNG KWON , KARL F. PETTY , ALEX A. KURZHANSKIY , ANDREW J. MOYLAN
IPC分类号： G08G1/052
CPC分类号： G08G1/0133 , G06G7/76 , G08G1/0112 , G08G1/096716 , G08G1/20
摘要： Estimation of traffic speed includes applying data processing functions to determine missing speed information by smoothing spatial and temporal GPS data to achieve an accurate estimation of link speed over all links of a transportation network at all time periods. This estimation of traffic speed uses one link's observed speed information to estimate neighboring links without observed speed information and therefore provides a system and method of processing collected GPS data to obtain a thorough understanding of traffic flow conditions for all represented links without further collection of GPS data. The present invention also provides a framework for analyzing and improving real-time collection of GPS speed data.
摘要翻译：交通速度的估计包括应用数据处理功能，通过平滑空间和时间GPS数据来确定丢失的速度信息，以实现在所有时间段内运输网络的所有链路上的链路速度的准确估计。这种交通速度的估计使用一个链路的观察速度信息来估计相邻链路而没有观察速度信息，因此提供了处理收集的GPS数据的系统和方法，以便对所有表示的链路的流量状况进行彻底的了解，而无需进一步收集GPS数据。本发明还提供了用于分析和改进GPS速度数据的实时采集的框架。

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