Search Results

Large-format single-photon avalanche diode (SPAD)-based direct time of flight (dToF) sensors are expected to be widely applied in future L5 full driving automation. However, the high-power in-pixel TDCs and the huge amount of data generated by multiframe ...

• GMM can distinguish similar spectral features in vegetation.
• After spectral ...

The chlorophyll content of saline vegetation can indirectly reflect salinization. Rapid and non-destructive capture of chlorophyll content of saline vegetation at a regional scale is essential for saline soil improvement and ...

• to propose the growth monitor index (GMI) of LAI and SPAD coupling by variation coefficient method.

Hyperspectral reflectance data can detect a great detail for predicting wheat’s grain yield (GY) and protein content (GPC). Based on different water and nitrogen rates, canopy spectral data and LAI and SPAD values were collected at ...

Display Omitted

Oil palm (Elaeis guineensis Jacq.) is of the most profitable and widespread commercial high tree crops in the tropical world, typically in Southeastern Asia. The present study aims to provide a brief but broad overview of different ...

• A non-clamping portable device for leaf SPAD measurement was proposed.
• SPAD map ...

Soil Plant Analysis Development (SPAD) was proved as a reliable indicator for the representation of leaf chlorophyll or nitrogen content. Portable plant SPAD sensors have been widely studied to determine plant nitrogen status rapidly ...

Time-correlated imaging is an emerging sensing modality that has been shown to enable promising application scenarios, including lidar ranging, fluorescence lifetime imaging, and even non-line-of-sight sensing. A leading technology for obtaining time-...

Parameter optimization is an important step for support vector regression (SVR), since its prediction performance greatly depends on values of the related parameters. To solve the shortcomings of traditional grid search algorithms such as too many ...

Single Photon Avalanche Photodiodes (SPADs) have recently received a lot of attention in imaging and vision applications due to their excellent performance in low-light conditions, as well as their ultra-high temporal resolution. Unfortunately, like ...

SPAD measurements strongly related with crop NNI and yield in two different seasons.Stronger relationship in the reproductive and harvest phases than in the vegetative.Sufficiency values for maximum growth and yield from regressions with NNI and ...

An app was implemented on android phone to estimate chlorophyll content of corn leaf.New method of imaging, contact imaging, was used to reduce effects of real conditions.Both linear and neural network models were developed to estimate SPAD ...

The main goal of this paper is to expose the EDA community to the emerging class of circuits operating with single quanta of energy (e.g. photons or electrical carriers). We describe recent developments in the field of single-photon detection and single-...

The efficiency of side-dressing, a more efficient of nitrogen application method than uniform application in either late Fall or early Spring, relies heavily on the capability of nitrogen deficiency detection on a sprayer. To determine the site-specific ...

Measuring the nitrogen nutrition status of plants is useful for nitrogen fertiliser management. As nitrogen is one of the main structural components of chlorophyll, its nutrition status is highly correlated with the greenness of leaves. This paper ...

One of the key hazardous events in railways is signals passed at danger (SPAD). SPAD events are relatively common, most with minor consequence. However, SPAD events with catastrophic consequences happen sufficiently often to be a concern within the rail ...