Enhanced rendering of surround view images

CN113853633BActive Publication Date: 2026-07-07TEXAS INSTRUMENTS INC

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
TEXAS INSTRUMENTS INC
Filing Date
2020-06-08
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Existing multi-camera surround view systems generate virtual images using GPU-based methods, which are costly and expensive, while GPU-free methods sometimes result in inaccurate stitching, leading to artifacts.

Method used

By generating a 3D surface representation of the scene, defining seam lines and identifying pixel blending weights, filling the blending table and partitioning the area using blending weights, and avoiding blending operations on areas without seam line pixels, the rendering process is accelerated using application-specific integrated circuits or system-on-a-chip.

Benefits of technology

It reduces the cost and overhead of surround view systems, improves the performance of the rendering process, and ensures the accuracy and speed of virtual images.

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Abstract

An apparatus including a memory and one or more processing circuits is provided. The memory stores a blending table having blending weights. For a partition of the blending table, the processing circuits determine whether a subset of the pixels associated with the partition includes a pixel associated with a seam line defined in a three-dimensional surface representation of the scene (222). If none of the subset of the pixels is associated with the seam line, the processing circuits fill an area of the virtual image corresponding to the partition with pixel values of an image captured by one of the plurality of image capture devices (224). If one or more of the subset of the pixels is associated with the seam line, the processing circuits fill an area of the virtual image associated with the partition with blended pixel values of two or more images captured by two or more of the plurality of image capture devices (226).
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