OPTIMIZATION FOR HOST BASED TOUCH PROCESSING

摘要

Systems and methods are disclosed for determining a touch position from data received from a touch panel. In one implementation, an apparatus for processing a touch input signal includes a processor that may be configured for parallel processing, a touch device, a memory, operably connected to the processor, and configured to store processor instructions. The processor instructions can configure the processor to receive a plurality of data points corresponding to a plurality of touch events on the touch device, determine a center of mass estimate from the plurality of data points, determine a search radius of center of mass estimate, and determine an optimal touch point position based on the center of mass estimate and the search radius using the processor.

主权项

1. An apparatus for processing a touch input signal, comprising:
a processor; a touch device configured to receive touch inputs; and a memory, operably connected to the processor, and configured to store processor instructions that configure the processor to perform a method including
receiving a plurality of input data points corresponding to a plurality of touch events on the touch device,downsampling the plurality of input data points to produce downsampled data points, the downsampled data points having fewer data points than the plurality of input data points;determining a center of mass estimate of a coarse object using the downsampled data points;determining a search radius around the center of mass estimate;generating a subset of the downsampled data points by removing data points indicative of the coarse object from the downsampled data points based on the center of mass estimate and the search radius;detecting, using at least the subset of the downsampled data points, a plurality of fine objects; anddetermining, based on the detected plurality of fine objects, a location of a fine object contacting the touch device.