公开(公告)号：US12214601B2

公开(公告)日：2025-02-04

申请号：US17921359

申请日：2021-05-12

Applicant: LANDA CORPORATION LTD.

Inventor： Boris Levant ,  Shai Silberstein ,  Tomer Yanir ,  Avraham Guttman ,  Alon Siman Tov

IPC: B41J2/21 ,  G06N3/0464 ,  G06T7/00

Abstract: A method includes, receiving a first digital image (FDI) to-be printed by a digital printing system (DPS) (10). In a in training phase: for first selected regions (111) in the FDI, a first set of synthetic images (SIs) (112A, 112B, 114A, 114B, 116A, 116B) having a defect caused by a defective part (DP) (99) in the first selected regions, is produced; a neural network (NN) (150) is trained to detect the defect using the first set SIs. In a subsequent detection phase: the NN is applied for identifying, in a second digital image (SDI) (136, 146) acquired from an image produced by the DPS, suspected second regions (135, 145); for each of the second regions, a second set (137, 147) of SIs having DPs that form the defects, is produced; and the DP is identified by comparing, in each of the second regions, between the SDI and the second set SIs.

公开(公告)号：US20230264483A1

公开(公告)日：2023-08-24

申请号：US17921359

申请日：2021-05-12

Applicant: LANDA CORPORATION LTD.

Inventor： Boris Levant ,  Shai Silberstein ,  Tomer Yanir ,  Avraham Guttman ,  Alon Siman Tov

IPC: B41J2/21 ,  G06N3/0464 ,  G06T7/00

CPC classification number: B41J2/2142 ,  G06N3/0464 ,  G06T7/0004 ,  G06T2207/20084 ,  G06T2207/20081

Abstract: A method includes, receiving a first digital image (FDI) to-be printed by a digital printing system (DPS) (10). In a in training phase: for first selected regions (111) in the FDI, a first set of synthetic images (SIs) (112A, 112B, 114A, 114B, 116A, 116B) having a defect caused by a defective part (DP) (99) in the first selected regions, is produced; a neural network (NN) (150) is trained to detect the defect using the first set SIs. In a subsequent detection phase: the NN is applied for identifying, in a second digital image (SDI) (136, 146) acquired from an image produced by the DPS, suspected second regions (135, 145); for each of the second regions, a second set (137, 147) of SIs having DPs that form the defects, is produced; and the DP is identified by comparing, in each of the second regions, between the SDI and the second set SIs.

公开(公告)号：US20220188050A1

公开(公告)日：2022-06-16

申请号：US17683401

申请日：2022-03-01

Applicant: Landa Corporation Ltd.

Inventor： Boris Levant

IPC: G06F3/12 ,  G06T7/00

Abstract: a method for correcting an error in image printing, the method includes receiving a reference digital image (RDI). Based on a predefined selection criterion, one or more regions in the RDI that are suitable for use as anchor features for sensing the error, are automatically selected. A digital image (DI) acquired from a printed image of the RDI, is received and the one or more regions are automatically identified in the DI. Based on the anchor features of the DI, the error is automatically estimated in the printed image. A correction that, when applied to the DI, compensates for the estimated error, is calculated. The estimated error is corrected in a subsequent digital image (SDI) to be printed, and the SDI having the corrected error, is printed.

公开(公告)号：US11321028B2

公开(公告)日：2022-05-03

申请号：US17106245

申请日：2020-11-30

Applicant: Landa Corporation Ltd.

Inventor： Boris Levant

IPC: G06T7/00 ,  G06F3/12

Abstract: a method for correcting an error in image printing, the method includes receiving a reference digital image (RDI). Based on a predefined selection criterion, one or more regions in the RDI that are suitable for use as anchor features for sensing the error, are selected. A digital image (DI) acquired from a printed image of the RDI, is received and the one or more regions are identified in the DI. Based on the anchor features of the DI, the error is estimated in the printed image. A correction that, when applied to the DI, compensates for the estimated error, is calculated. The estimated error is corrected in a subsequent digital image (SDI) to be printed, and the SDI having the corrected error, is printed.

公开(公告)号：US11630618B2

公开(公告)日：2023-04-18

申请号：US17683401

申请日：2022-03-01

Applicant: Landa Corporation Ltd.

Inventor： Boris Levant

IPC: G06T7/00 ,  G06F3/12

Abstract: A method for correcting an error in image printing, the method includes receiving a reference digital image (RDI). Based on a predefined selection criterion, one or more regions in the RDI that are suitable for use as anchor features for sensing the error, are automatically selected. A digital image (DI) acquired from a printed image of the RDI, is received and the one or more regions are automatically identified in the DI. Based on the anchor features of the DI, the error is automatically estimated in the printed image. A correction that, when applied to the DI, compensates for the estimated error, is calculated. The estimated error is corrected in a subsequent digital image (SDI) to be printed, and the SDI having the corrected error, is printed.

公开(公告)号：US20210182001A1

公开(公告)日：2021-06-17

申请号：US17106245

申请日：2020-11-30

Applicant: Landa Corporation Ltd.

Inventor： Boris Levant

IPC: G06F3/12 ,  G06T7/00

Abstract: a method for correcting an error in image printing, the method includes receiving a reference digital image (RDI). Based on a predefined selection criterion, one or more regions in the RDI that are suitable for use as anchor features for sensing the error, are selected. A digital image (DI) acquired from a printed image of the RDI, is received and the one or more regions are identified in the DI. Based on the anchor features of the DI, the error is estimated in the printed image. A correction that, when applied to the DI, compensates for the estimated error, is calculated. The estimated error is corrected in a subsequent digital image (SDI) to be printed, and the SDI having the corrected error, is printed.