US-20260129275-A1 - CAMERA SYSTEM

US20260129275A1US 20260129275 A1US20260129275 A1US 20260129275A1US-20260129275-A1

Abstract

Systems and techniques for providing a camera system are disclosed. An optical detection process includes receiving light from a scene at an asymmetrical aperture aligned relative to an optical axis. The asymmetrical aperture is configured to obtain light from an optical element with an oblique orientation relative to the optical axis. The asymmetrical aperture comprises a first dimension along a first axis and a second dimension along a second axis, the first dimension being longer than the second dimension. The process includes focusing the light from the scene to form an image and receiving the image at an image sensor.

Inventors

Per Agne KNUTSSON

Assignees

QUALCOMM INCORPORATED

Dates

Publication Date: 20260507
Application Date: 20241107

Claims (20)

1 . A camera system comprising: an asymmetrical aperture aligned relative to an optical axis, wherein the asymmetrical aperture is configured to obtain light from an optical element with an oblique orientation relative to the optical axis, wherein the asymmetrical aperture comprises a first dimension along a first axis and a second dimension along a second axis, the first dimension being longer than the second dimension; and an image sensor, wherein the optical axis intersects with an array of photosensors of the image sensor.
2 . The camera system of claim 1 , further comprising an adjustable lens system, wherein the adjustable lens system comprises a first lens and a second lens, the first lens and the second lens each comprising a respective curved surface.
3 . The camera system of claim 2 , wherein a relative displacement of the first lens and the second lens relative to the optical axis along the first axis or the second axis reduces at least one of astigmatism associated with the optical element or defocus associated with the optical element.
4 . The camera system of claim 2 , wherein the first lens and the second lens comprise a Lohmann lens pair or an Alvarez lens pair.
5 . The camera system of claim 2 , wherein a camera lens system comprises a housing and the housing encloses the adjustable lens system and the asymmetrical aperture.
6 . The camera system of claim 2 , wherein: a camera lens system comprises a housing; the housing encloses the asymmetrical aperture; and the adjustable lens system is external to the housing.
7 . The camera system of claim 1 , wherein the optical element includes one or more optical aberrations.
8 . The camera system of claim 7 , wherein the optical element comprises a vehicle windshield.
9 . The camera system of claim 1 , wherein the first axis is orthogonal to the optical axis and the second axis is orthogonal to the first axis and the optical axis.
10 . The camera system of claim 1 , wherein the optical element introduces aberrations along the second axis.
11 . The camera system of claim 1 , wherein the optical element includes at least one of astigmatism or defocus aberration.
12 . The camera system of claim 1 , wherein the asymmetrical aperture comprises an oval-shaped aperture.
13 . The camera system of claim 1 , wherein the asymmetrical aperture restricts aberrations induced by the optical element along the second axis.
14 . The camera system of claim 1 , further comprising one or more focusing optical elements disposed along the optical axis, wherein the one or more focusing optical elements are configured to focus an image at an image plane coinciding with the image sensor.
15 . A method of optical detection comprising: receiving light from a scene at an asymmetrical aperture aligned relative to an optical axis, wherein the asymmetrical aperture is configured to obtain light from an optical element with an oblique orientation relative to the optical axis, wherein the asymmetrical aperture comprises a first dimension along a first axis and a second dimension along a second axis, the first dimension being longer than the second dimension; focusing the light from the scene to form an image; and receiving the image at an image sensor.
16 . The method of claim 15 , wherein the asymmetrical aperture comprises an oval-shaped aperture.
17 . The method of claim 15 , wherein the asymmetrical aperture restricts aberrations induced by the optical element along the second axis.
18 . The method of claim 15 , further comprising receiving the light from the scene at an adjustable lens system disposed along the optical axis, wherein the adjustable lens system comprises a first lens and a second lens, the first lens and the second lens each comprising a respective curved surface.
19 . The method of claim 18 , wherein the first lens and the second lens comprise a Lohmann lens pair or an Alvarez lens pair.
20 . The method of claim 15 , wherein the optical element comprises one or more optical aberrations.

Description

FIELD Aspects of the disclosure relate generally to camera systems (e.g., for automotive applications or other applications). BACKGROUND Object detection and tracking can be used to identify an object (e.g., from a digital image or a video frame of a video clip) and track the object over time. Object detection and tracking can be used in different fields, including transportation, video analytics, security systems, robotics, aviation, among many others. In some fields, a tracking object can determine positions of other objects (e.g., target objects) in an environment so that the tracking object can accurately navigate through the environment. In order to make accurate motion and trajectory planning decisions, the tracking object may also have the ability to estimate various target object characteristics, such as pose (e.g., including position and orientation) and size. SUMMARY The following presents a simplified summary relating to one or more aspects disclosed herein. Thus, the following summary should not be considered an extensive overview relating to all contemplated aspects, nor should the following summary be considered to identify key or critical elements relating to all contemplated aspects or to delineate the scope associated with any particular aspect. Accordingly, the following summary has the sole purpose to present certain concepts relating to one or more aspects relating to the mechanisms disclosed herein in a simplified form to precede the detailed description presented below. Disclosed are systems, methods, apparatuses, and computer-readable media for implementing a camera system. According to at least one example, a method is provided for receiving light from a scene at an asymmetrical aperture aligned relative to an optical axis, wherein the asymmetrical aperture is configured to obtain light from an optical element with an oblique orientation relative to the optical axis, wherein the asymmetrical aperture comprises a first dimension along a first axis and a second dimension along a second axis, the first dimension being longer than the second dimension; focusing the light from the scene to form an image; and receiving the image at an image sensor. In another example, a camera system is provided that includes an asymmetrical aperture aligned relative to an optical axis, wherein the asymmetrical aperture is configured to obtain light from an optical element with an oblique orientation relative to the optical axis, wherein the asymmetrical aperture comprises a first dimension along a first axis and a second dimension along a second axis, the first dimension being longer than the second dimension; and an image sensor, wherein the optical axis intersects with an array of photosensors of the image sensor. In another example, a non-transitory computer-readable medium is provided that has stored thereon instructions that, when executed by one or more processors, cause the one or more processors to: receive light from a scene at an asymmetrical aperture aligned relative to an optical axis, wherein the asymmetrical aperture is configured to obtain light from an optical element with an oblique orientation relative to the optical axis, wherein the asymmetrical aperture comprises a first dimension along a first axis and a second dimension along a second axis, the first dimension being longer than the second dimension; focus the light from the scene to form an image; and receive the image at an image sensor. In accordance with another example, an apparatus for receiving light from a scene is provided. The apparatus includes: means for receiving light from a scene at an asymmetrical aperture aligned relative to an optical axis, wherein the asymmetrical aperture is configured to obtain light from an optical element with an oblique orientation relative to the optical axis, wherein the asymmetrical aperture comprises a first dimension along a first axis and a second dimension along a second axis, the first dimension being longer than the second dimension; means for focusing the light from the scene to form an image; and means for receiving the image at an image sensor. In some aspects, the method, apparatuses, and computer-readable medium described above further comprise: an adjustable lens system, wherein the adjustable lens system comprises a first lens and a second lens, the first lens and the second lens each comprising a respective curved surface. In some aspects, a relative displacement of the first lens and the second lens relative to the optical axis along the first axis or the second axis reduces at least one of astigmatism associated with the optical element or defocus associated with the optical element. In some aspects, the first lens and the second lens comprise a Lohmann lens pair or an Alvarez lens pair. In some aspects, a camera lens system comprises a housing and the housing encloses the adjustable lens system and the asymmetrical aperture. In some aspects, a camera lens system comprises a