Ocado Innovation Limited

Xiaokai Cui

Christopher Pearman

Jonathan Schuchart

A method and system for calibrating a wide-angle or ultra wide-angle camera disposed above a grid of a storage system. An image of a grid section and initial values of a plurality of parameters corresponding to the camera are obtained. The image is processed, using a neural network trained to detect/predict sets of parallel tracks in images of grid sections captured by wide-angle or ultra wide-angle cameras, to generate a model of the sets of parallel tracks as captured in the image. Selected pixels in the model are mapped to corresponding points on the grid using a mapping based on the plurality of parameters, with the initial values used as inputs to the mapping. An error function is determined based on a discrepancy between mapped grid coordinates of the points and known grid coordinates. The initial values of the parameters are updated based on the error function and the updated values are stored for mapping pixels in images of the grid section captured by the camera to corresponding points on the grid of the storage system.

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Hatfield, United Kingdom

Xiaokai Cui