Patent · US Active

Image sensor circuitry for reducing effects of laser speckles

US11736816B2 · kind B2 · utility

0Cited by

0References

9Claims

0Family size

Assignee

SICK IVP AB · SE

Inventors

Mattias Johannesson · Linköping, SE
Johan Melander · Linköping, SE
Romain MÜLLER · Waldkirch, DE

Key dates

Filing date	Feb 5, 2021
Grant date	Aug 22, 2023
Priority date	—
Expiry date	Jul 31, 2041

Classification

Technology area (CPC H)Electricity
CPC primaryH04N25/77
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

Image sensor circuitry comprising an image sensor and method for supporting reduction of laser speckle effects in a digital image. Per each pixel position (x, y) of at least a subregion of the image sensor, the image sensing circuitry: Assigns to said pixel position (x,y) a predefined pixel window (w) comprising said pixel position (x,y) and one or more of its closest neighboring pixel positions. Obtains first pixel values for each pixel located within said predefined pixel window (w), said first pixel values resulting from the same exposure and corresponding to sensed light from this exposure. Combines the obtained first pixel values into a single, second pixel value according to a predefined combination function. The digital image is provided based on the second pixel values.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.