公开(公告)号：US20230336887A1

公开(公告)日：2023-10-19

申请号：US18343018

申请日：2023-06-28

申请人： TEXAS INSTRUMENTS INCORPORATED

发明人： Gang HUA ,  Rajasekhar Reddy ALLU ,  Mihir Narendra MODY ,  Niraj NANDAN ,  Mayank MANGLA ,  Pandy KALIMUTHU

IPC分类号： H04N25/611 ,  G06T3/40 ,  G06T1/60 ,  H04N25/13

CPC分类号： H04N25/611 ,  G06T3/4015 ,  G06T1/60 ,  H04N25/13

摘要： In an advanced driver-assistance system (ADAS), RAW sensor image processing for a machine vision (MV) application is important. Due to different color, e.g., red/green/blue (RGB), color components, being focused by the lens at different locations in image plane, the lateral chromatic aberration phenomenon may sometimes be observed, which causes false color around edges in the final image output, especially for high contrast edges, which can impede MV applications. Disclosed herein are low-latency, efficient, optimized designs for chromatic aberration correction (CAC) components. An in-pipeline CAC design may be used to perform on-the-fly CAC without any out-of-pipeline memory traffic; enable use of wide dynamic range (WDR) sensors; uses bicubic interpolation; support vertical and horizontal chromatic aberration color channel offsets, reduce CAC line memory requirements, and support flexible look-up table (LUT) down-sampling factors to improve the spatial precision of correction and accommodate popular image sensor resolutions.

公开(公告)号：US20230199339A1

公开(公告)日：2023-06-22

申请号：US17555145

申请日：2021-12-17

申请人： TEXAS INSTRUMENTS INCORPORATED

发明人： Gang HUA ,  Rajasekhar Reddy ALLU ,  Mihir Narendra MODY ,  Niraj NANDAN ,  Mayank MANGLA ,  Pandy KALIMUTHU

IPC分类号： H04N9/04 ,  G06T1/60 ,  G06T3/40

CPC分类号： H04N9/04517 ,  G06T1/60 ,  G06T3/4015 ,  H04N9/04551

摘要： In the advanced driver-assistance systems (ADAS) field, RAW sensor image processing for machine vision (MV) applications can be of critical importance. Due to red/green/blue (RGB) image components being focused by the lens at different locations in image plane, the lateral chromatic aberration (LCA) phenomenon may sometimes be observed, which causes false color around edges in the final image output, especially for high contrast edges, which can impede MV applications. Disclosed herein are low-latency, efficient, optimized designs for chromatic aberration correction (CAC) modules. In some embodiments, an in-pipeline CAC design is used that: is configured to perform on-the-fly CAC without any out-of-pipeline memory traffic; enables use of wide dynamic range (WDR) sensors; uses bicubic interpolation; supports vertical and horizontal chromatic aberration red/blue color channel offsets, reduces CAC line memory requirements, and supports flexible look-up table (LUT) down-sampling factors to improve the spatial precision of correction and accommodate popular image sensor resolutions.

公开(公告)号：US20230115615A1

公开(公告)日：2023-04-13

申请号：US17486675

申请日：2021-09-27

申请人： Texas Instruments Incorporated

发明人： Pandy KALIMUTHU ,  Anthony Joseph LELL

IPC分类号： G01R31/3177 ,  G06F1/10

摘要： Techniques for debugging a circuit including a global counter configured to continuously increment, a comparator configured to transmit a clock stop signal based on a comparison of a comparator value and a counter value of the global counter, and clock stop circuitry configured to receive the clock stop signal and stop a clock signal to one or more portions of the electronic device.