18411138. Camera Parameter Estimation Using Semantic Labels simplified abstract (Apple Inc.)

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Camera Parameter Estimation Using Semantic Labels

Organization Name

Apple Inc.

Inventor(s)

Payal Jotwani of Santa Clara CA (US)

Camera Parameter Estimation Using Semantic Labels - A simplified explanation of the abstract

This abstract first appeared for US patent application 18411138 titled 'Camera Parameter Estimation Using Semantic Labels

Simplified Explanation

The patent application describes a device that can estimate the intrinsic parameter of a camera based on two-dimensional and three-dimensional coordinates obtained from a point cloud and a corresponding two-dimensional image of a scene.

  • Device obtains a point cloud of a scene with three-dimensional coordinates.
  • First cluster of points in the point cloud has a first semantic label.
  • Device captures a two-dimensional image of the scene with a camera.
  • Device detects a representation of a first object in the two-dimensional image.
  • Device determines two-dimensional coordinates of the first object in the image.
  • Device maps the two-dimensional coordinates to three-dimensional coordinates in the point cloud.
  • Device estimates the intrinsic parameter of the camera based on the coordinates.

Potential Applications

This technology could be applied in:

  • Augmented reality systems
  • Autonomous navigation systems
  • Robotics for object recognition and localization

Problems Solved

This technology solves the following problems:

  • Estimating camera parameters accurately
  • Mapping two-dimensional images to three-dimensional space
  • Improving object detection and localization accuracy

Benefits

The benefits of this technology include:

  • Enhanced accuracy in object detection and localization
  • Improved performance of augmented reality applications
  • Better calibration of camera systems

Potential Commercial Applications

Potential commercial applications of this technology include:

  • Surveillance systems
  • Industrial automation
  • Virtual reality applications

Possible Prior Art

One possible prior art for this technology could be:

  • Camera calibration techniques using point clouds and images

Unanswered Questions

How does this technology handle occlusions in the scene?

The patent application does not specify how the device deals with occlusions in the scene that may affect the accuracy of object detection and localization.

What is the computational complexity of the estimation process?

The patent application does not provide information on the computational resources required for estimating the intrinsic parameter based on the coordinates obtained from the point cloud and the two-dimensional image.


Original Abstract Submitted

A device obtains a point cloud of a scene including a plurality of points. Each point has three-dimensional coordinates in a three-dimensional coordinate system. A first cluster of points has a first semantic label. The device obtains a two-dimensional image of the scene with a camera with an intrinsic parameter. The device detects, in the two-dimensional image, a representation of a first object corresponding to the first semantic label. The device determines two-dimensional coordinates in a two-dimensional coordinate system of the two-dimensional image corresponding to the first object. The device determines, from the first cluster of points, three-dimensional coordinates in the three-dimensional coordinate system of the scene corresponding to the two-dimensional coordinates in the two-dimensional coordinate system of the two-dimensional image of the scene. The device estimates the intrinsic parameter based on the two-dimensional and the three-dimensional coordinates.