公开(公告)号：US12155941B2

公开(公告)日：2024-11-26

申请号：US17996776

申请日：2020-12-14

Applicant: QUALCOMM Incorporated

Inventor： Nithin Varghese ,  Nitin Srivastava ,  Narendra Kumar Chepuri

IPC: H04N23/741 ,  H04N5/265 ,  H04N23/611 ,  H04N23/62 ,  H04N23/63 ,  H04N23/72 ,  H04N23/73 ,  H04N23/743

Abstract: Multiple regions of a scene are identified, for example through user inputs to a touchscreen while the touchscreen displays preview frames of the scene. Multiple exposure settings are determined based on the identified regions. Each exposure setting is determined based on one of the identified regions, for instance to optimally expose that region. Multiple image frames are captured of the scene, with each image frame captured at a different one of the determined exposure settings. A high dynamic range (HDR) image of the scene is generated by merging the multiple image frames of the scene.

公开(公告)号：US11363209B1

公开(公告)日：2022-06-14

申请号：US17184343

申请日：2021-02-24

Applicant: QUALCOMM Incorporated

Inventor： Durga Prasad Reddy Gajjala ,  Narendra Kumar Chepuri ,  Nitin Srivastava

IPC: H04N5/262 ,  H04N5/232 ,  G06T7/00 ,  G06V40/16

Abstract: Examples are described of digital zoom retaining image characteristics such as sharpness, clarity, and/or contrast. In some aspects, a device can receive an image and can determine various image characteristic scores corresponding to digitally zoomed variants of the image having different zoom strengths. For instance, the device can determine a first image characteristic score for a first zoom strength and a second image characteristic score for a second zoom strength. The device can compare the image characteristic scores to an image characteristic threshold, and can select the highest zoom strength for which the corresponding image characteristic score is not below the image characteristic threshold. For example, the device can select the first zoom strength if the first image characteristic score meets or exceeds the image characteristic threshold while the second image characteristic score does not. The device can output image data corresponding to the image at the selected zoom strength.