3 results about "Epipolar line" patented technology

An image-stitching method compensates electronic rolling shutter (ERS) distortion and parallax to produce a composite image. A first and second image from respective sensors are received. An ERS correction mapping is computed at a lower resolution than a parallax correction mapping. A far point and a near point defining an initial epipolar line are identified. A compensated near point is determined from ERS data, and a compensated epipolar line is formed by linear interpolation between the far point and the compensated near point. A one-dimensional search along the compensated epipolar line yields a parallax translation between the images. A warp mapping is determined from the parallax translation and the ERS correction mapping, and applied to blend the images into a composite. The technique decouples ERS estimation from parallax and is suitable for multi-sensor capture devices and post-capture stitching.

A system for producing a depth map can include a processor and a memory. The memory can store a candidate depth production module and a depth map production module. The candidate depth production module can include instructions that cause the processor to: (1) identify, in a first image, an epipolar line associated with a pixel in a second image and (2) sample, from a first image feature set, a set of candidate depths for pixels along the epipolar line. The depth map production module can include instructions that cause the processor to: (1) determine a similarity measure between a feature, from a second image feature set, and a member of the set and (2) produce, from the second image, the depth map with a depth for the pixel being a depth associated with a member, of the set, having a greatest similarity measure.

A computer-implemented method for providing an item of detection information includes applying a function to a received first X-ray projection image, at least one received second X-ray projection image, and a received and / or ascertained item of relative arrangement information. The function is configured to identify one projection respectively from at least one object in a predefined epipolar region in the first X-ray projection image and in the at least one second X-ray projection image. The predefined epipolar region is arranged around an epipolar line on which the projection of the object is situated in the first X-ray projection image and / or in the at least one second X-ray projection image. A corresponding item of detection information is provided when the projection of the object is identified in the predefined epipolar region in the first X-ray projection image and in the at least one second X-ray projection image.