Qualcomm Incorporated

Shandon Campbell

Kalin Mitkov Atanassov

Stephen Michael Verrall

James Wilson Nash

Karthikeyan Shanmugavadivelu

Ovidiu Cristian Miclea

A device for image processing includes an optical receiver configured to receive a reflection of a coded pattern from an object to generate an image, and processing circuitry. The processing circuitry is configured to determine an estimated position of zero order light in the image, determine a spatial region of the coded pattern that corresponds to a position of the zero order light in the coded pattern, map the spatial region to the estimated position of the zero order light in the image to generate a corrected image, and generate a depth map for the coded pattern based on the corrected image.

Zero order light removal in active sensing systems

Systems and methods of triggering an event based on meeting a certain depth criteria in an image. One innovation of a method includes a identifying at least one object in a field of view of an imaging device, the imaging device configured to capture at least one image of the field of view, determining a threshold depth level, measuring a depth of the at least one object within the field of view with respect to the imaging device, comparing the measured depth of the at least one object to the threshold depth level, and capturing an image of the object when the depth of the object within the field of view exceeds the threshold depth level.

Depth triggered event feature

Methods and apparatus for active depth sensing are disclosed. In some aspects, an imaging device may generate first depth information based on an active sensing technology, such as structured light. In some aspects, at least some of the first depth information may be missing or inaccurate, perhaps due to an extended range between the imaging device and a subject of the image. Additional range information may then be generated based on a zero order component of the structured light. The additional range information may then be used alone or combined with the first depth information and used to control one or more parameters of an imaging device, such as an exposure time and/or aperture.

Systems and methods for improved depth sensing

Systems and methods for correcting errors in a depth map generated by a structured light system are disclosed. In one aspect, a method includes receiving valid and invalid codewords, the valid spatial codewords included in a codebook. The method includes detecting the invalid codeword. The method includes retrieving a set of candidate valid codewords a lowest Hamming distance between the invalid codeword and the valid codewords in the codebook. The method includes estimating a median depth of neighboring locations of the invalid codeword. The method includes associating a depth with each candidate codeword and selecting the candidate with an associated depth closest to the depth estimate. The method includes assigning the depth associated with the selected candidate codeword to the location of the invalid codeword.

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San Diego, CA, United States of America

Shandon Campbell