公开(公告)号：US20250097391A1

公开(公告)日：2025-03-20

申请号：US18470649

申请日：2023-09-20

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Jaime De La Cruz ,  Jeffrey Kempf ,  Shivam Srivastava

IPC: H04N9/31 ,  G06T7/90 ,  H04N23/61

Abstract: A system including at least one processor configured to determine a command pattern and a projector coupled to the at least one processor. The projector is configured to project an opening pattern, project the command pattern after projecting the opening pattern, and project a closing pattern after projecting the command pattern.

公开(公告)号：US11881867B2

公开(公告)日：2024-01-23

申请号：US17467561

申请日：2021-09-07

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Narasimhan Rajagopal ,  Eeshan Miglani ,  Chirag Chandrahas Shetty ,  Neeraj Shrivastava ,  Shagun Dusad ,  Srinivas Kumar Reddy Naru ,  Nithin Gopinath ,  Charls Babu ,  Shivam Srivastava ,  Viswanathan Nagarajan ,  Jagannathan Venkataraman ,  Harshit Moondra ,  Prasanth K ,  Visvesvaraya Appala Pentakota

IPC: H03M1/10

CPC classification number: H03M1/1019

Abstract: In described examples, a circuit includes a calibration engine. The calibration engine generates multiple input codes. A digital to analog converter (DAC) is coupled to the calibration engine, and generates a first calibration signal in response to a first input code of the multiple input codes. An analog to digital converter (ADC) is coupled to the DAC, and generates multiple raw codes responsive to the first calibration signal. A storage circuit is coupled to the ADC and stores a first output code corresponding to the first input code. The first output code is obtained using the multiple raw codes generated by the ADC.

公开(公告)号：US12212899B2

公开(公告)日：2025-01-28

申请号：US18344979

申请日：2023-06-30

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Shivam Srivastava ,  Jaime Rene De La Cruz Vazquez ,  Jeffrey Matthew Kempf

IPC: H04N9/31 ,  H04N23/90

Abstract: An apparatus includes a first camera configured to capture a first image being displayed, a second camera configured to capture a second image being displayed, and a processor configured to generate a pair-wise homography transform for the first camera and the second camera, and map, based on the pair-wise homography transform, the second image from a second frame of reference of the second camera to a first frame of reference of the first camera. The processor is further configured to determine a first corrected quadrilateral for the first image and a second corrected quadrilateral for the second image in the first frame of reference, and project, based on the pair-wise homography transform, the second corrected quadrilateral from the first frame of reference to the second frame of reference. The quadrilaterals are then processed to warp respective images for geometric correction before projecting the images by respective projectors.

公开(公告)号：US20220247420A1

公开(公告)日：2022-08-04

申请号：US17467561

申请日：2021-09-07

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Narasimhan Rajagopal ,  Eeshan Miglani ,  Chirag Chandrahas Shetty ,  Neeraj Shrivastava ,  Shagun Dusad ,  Srinivas Kumar Reddy Naru ,  Nithin Gopinath ,  Charls Babu ,  Shivam Srivastava ,  Viswanathan Nagarajan ,  Jagannathan Venkataraman ,  Harshit Moondra ,  Prasanth K ,  Visvesvaraya Appala Pentakota

IPC: H03M1/10

Abstract: In described examples, a circuit includes a calibration engine. The calibration engine generates multiple input codes. A digital to analog converter (DAC) is coupled to the calibration engine, and generates a first calibration signal in response to a first input code of the multiple input codes. An analog to digital converter (ADC) is coupled to the DAC, and generates multiple raw codes responsive to the first calibration signal. A storage circuit is coupled to the ADC and stores a first output code corresponding to the first input code. The first output code is obtained using the multiple raw codes generated by the ADC.

公开(公告)号：US20230316468A1

公开(公告)日：2023-10-05

申请号：US17711685

申请日：2022-04-01

Applicant: Texas Instruments Incorporated

Inventor： Shivam Srivastava ,  Jaime De La Cruz ,  Jeffrey Kempf

IPC: G06T5/00 ,  G06T7/521 ,  G06T7/73 ,  G06T3/00 ,  G06T5/50 ,  H04N9/31

CPC classification number: G06T5/006 ,  G06T7/521 ,  G06T7/74 ,  G06T3/0093 ,  G06T3/0012 ,  G06T5/50 ,  H04N9/3147 ,  H04N9/3185 ,  H04N9/3194 ,  G06T2207/10028 ,  H04N9/3102

Abstract: An example apparatus includes: a controller configured to: generate a pattern of points; obtain a first image of a first reflection of a projection of the pattern of points from a first camera; generate a first point cloud having a first coordinate system based on the first image; obtain a second image of a second reflection of the projection of the pattern of points from a second camera; generate a second point cloud having a second coordinate system based on the second image; determine a rigid body transform to convert coordinates of the second coordinate system to coordinates of the first coordinate system; apply the rigid body transform to the second point cloud to generate a transformed point cloud; and generate a corrected point cloud based on the transformed point cloud.