Patents Assigned to SIGTUPLE TECHNOLOGIES PRIVATE LIMITED
  • Patent number: 11340439
    Abstract: The present disclosure provides method and system for auto focusing a microscopic imaging system using machine learned regression system such as Convolutional Neural Network (CNN). The method comprises receiving a first image of a sample under review and a second image of sample wherein the first image is captured at first focus position and second image is captured at second focus position. The CNN is trained using the plurality of historic difference images along with direction of focus and optimal focus position. The difference of two images are obtained in terms of difference in pixel values. The direction of focus and optimal focus position for difference image is identified based on plurality of historic difference images along with direction of focus and optimal focus position. The method enables automated stage comprising sample to move towards direction of focus and position at optimal focus position for capturing a focused image.
    Type: Grant
    Filed: June 18, 2019
    Date of Patent: May 24, 2022
    Assignee: Sigtuple Technologies Private Limited
    Inventor: Tathagato Rai Dastidar
  • Patent number: 11269172
    Abstract: Embodiments of present disclosure discloses system and method for reconstruction of FOV. Initially, presence of one of single object and distinct objects in FOV of image of sample comprising one or more objects is determined based on sharpness of one or more objects. A single optimal representation of FOV may be generated when presence of single object is determined. At least one of single optimal representation and a depth-based enhanced representation of FOV may be generated when presence of distinct objects is determined. For generating depth-based enhanced representation, one or more first optimal images associated with each of distinct objects in FOV may be retrieved. An optimal representation of each of distinct objects is generated based on corresponding one or more first optimal images. Further, optimal representation of each of distinct objects is placed at corresponding optimal depth associated with respective distinct object to generate depth-based enhanced representation.
    Type: Grant
    Filed: February 8, 2018
    Date of Patent: March 8, 2022
    Assignee: SIGTUPLE TECHNOLOGIES PRIVATE LIMITED
    Inventors: Harshit Pande, Abdul Aziz, Bharath Cheluvaraju, Tathagato Rai Dastidar, Apurv Anand, Rohit Kumar Pandey
  • Publication number: 20210405339
    Abstract: The present disclosure provides method and system for auto focusing a microscopic imaging system using machine learned regression system such as Convolutional Neural Network (CNN). The method comprises receiving a first image of a sample under review and a second image of sample wherein the first image is captured at first focus position and second image is captured at second focus position. The CNN is trained using the plurality of historic difference images along with direction of focus and optimal focus position. The difference of two images are obtained in terms of difference in pixel values. The direction of focus and optimal focus position for difference image is identified based on plurality of historic difference images along with direction of focus and optimal focus position. The method enables automated stage comprising sample to move towards direction of focus and position at optimal focus position for capturing a focused image.
    Type: Application
    Filed: June 18, 2019
    Publication date: December 30, 2021
    Applicant: SIGTUPLE TECHNOLOGIES PRIVATE LIMITED
    Inventor: Tathagato Rai Dastidar
  • Patent number: 11189027
    Abstract: Disclosed subject matter relates to Peripheral Blood Smear (PBS) that determines an area to be scanned in PBS for analysis. A PBS analysing system captures a focused image at each of plurality of positions in the PBS and determines Quality Indicators (QIs) in focused image. Further, a region is identified in PBS where QIs of focused image satisfy predefined QI threshold limits, as a monolayer region of PBS and determines an initiation point in monolayer region based on cell count value and co-ordinates of each of the plurality of positions located in the monolayer region. Finally, the area to be scanned in monolayer region is determined based on the initiation point and a predefined scan pattern. Determining the area to be scanned yields accurate and faster results.
    Type: Grant
    Filed: May 15, 2018
    Date of Patent: November 30, 2021
    Assignee: Sigtuple Technologies Private Limited
    Inventors: Shreepad Potadar, Dheeraj Mundhra, Abhishek Shukla, Raghu G, Amrutha Muralidharan, Deepak Kapoor, Vijay Muralidharan, Nivedita Muthusubramanian, Bharath Cheluvaraju, Apurv Anand, Tathagato Rai Dastidar, Rohit Kumar Pandey
  • Patent number: 11187644
    Abstract: The present disclosure relates to a method and system for determining Total Count (TC) of RBCs in a Peripheral Blood Smear (PBS). The system receives a plurality of images from the monolayer of the PBS. Further, the system extracts, segments and identifies RBCs in each of the plurality of images using deep learning models. The system computes a value of each variable of a set of variables for each of the plurality of images. The set of variables includes foreground non-pallor area, density of RBCs, cell count, cell count ratio, foreground area and foreground hole-filled area. Furthermore, the system computes statistical parameters for each variable, over the plurality of images. The statistical parameters are provided as an input to supervised learning model, to determine TC of RBCs. Thus, the TC estimation system provides an efficient and robust method for estimating TC of RBCs using plurality of images of the PBS.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: November 30, 2021
    Assignee: Sigtuple Technologies Private Limited
    Inventors: Dheeraj Mundhra, Himanshu Sharma, Shreepad Potadar, Bharath Cheluvaraju, Tathagato Rai Dastidar
  • Publication number: 20210333196
    Abstract: The present disclosure relates to a method and system for determining Total Count (TC) of RBCs in a Peripheral Blood Smear (PBS). The system receives a plurality of images from the monolayer of the PBS. Further, the system extracts, segments and identifies RBCs in each of the plurality of images using deep learning models. The system computes a value of each variable of a set of variables for each of the plurality of images. The set of variables includes foreground non-pallor area, density of RBCs, cell count, cell count ratio, foreground area and foreground hole-filled area. Furthermore, the system computes statistical parameters for each variable, over the plurality of images. The statistical parameters are provided as an input to supervised learning model, to determine TC of RBCs. Thus, the TC estimation system provides an efficient and robust method for estimating TC of RBCs using plurality of images of the PBS.
    Type: Application
    Filed: August 21, 2018
    Publication date: October 28, 2021
    Applicant: SIGTUPLE TECHNOLOGIES PRIVATE LIMITED
    Inventors: Dheeraj MUNDHRA, Himanshu Sharma, Shreepad Potadar, Bharath Cheluvaraju, Tathagato Rai Dastidar
  • Publication number: 20210165204
    Abstract: Embodiments of present disclosure discloses system and method for reconstruction of FOV. Initially, presence of one of single object and distinct objects in FOV of image of sample comprising one or more objects is determined based on sharpness of one or more objects. A single optimal representation of FOV may be generated when presence of single object is determined. At least one of single optimal representation and a depth-based enhanced representation of FOV may be generated when presence of distinct objects is determined. For generating depth-based enhanced representation, one or more first optimal images associated with each of distinct objects in FOV may be retrieved. An optimal representation of each of distinct objects is generated based on corresponding one or more first optimal images. Further, optimal representation of each of distinct objects is placed at corresponding optimal depth associated with respective distinct object to generate depth-based enhanced representation.
    Type: Application
    Filed: February 8, 2018
    Publication date: June 3, 2021
    Applicant: SIGTUPLE TECHNOLOGIES PRIVATE LIMITED
    Inventors: Harshit PANDE, Abdul AZIZ, Bharath CHELUVARAJU, Tathagato Rai DASTIDAR, Apurv ANAND, Rohit Kumar PANDEY
  • Patent number: 10881382
    Abstract: Disclosed herein is method and system for determining quality of semen sample. Trajectories of objects, identified in each of plurality of image frames of semen sample, are generated by tracking movement of the objects across image frames, and compensating a drift velocity of the semen sample. Further, generated trajectories are classified into sperm and non-sperm trajectories. Finally, total concentration estimate and total motility estimate of the semen sample are computed to generate a semen quality index, which indicates quality of the semen sample. In an embodiment, the method of present disclosure uses a multi-level Convolutional Neural Network (CNN) analysis technique for effectively classifying the object trajectories into sperm and non-sperm objects. Also, since the present method includes estimating and compensating drift velocity in the semen sample, it enhances overall accuracy of motility estimation and semen quality analysis.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: January 5, 2021
    Assignee: Sigtuple Technologies Private Limited
    Inventors: Karan Dewan, Bharath Cheluvaraju, Tathagato Rai Dastidar, Apurv Anand, Rohit Kumar Pandey
  • Publication number: 20200242757
    Abstract: Disclosed subject matter relates to Peripheral Blood Smear (PBS) that determines an area to be scanned in PBS for analysis. A PBS analysing system captures a focused image at each of plurality of positions in the PBS and determines Quality Indicators (QIs) in focused image. Further, a region is identified in PBS where QIs of focused image satisfy predefined QI threshold limits, as a monolayer region of PBS and determines an initiation point in monolayer region based on cell count value and co-ordinates of each of the plurality of positions located in the monolayer region. Finally, the area to be scanned in monolayer region is determined based on the initiation point and a predefined scan pattern. Determining the area to be scanned yields accurate and faster results.
    Type: Application
    Filed: May 15, 2018
    Publication date: July 30, 2020
    Applicant: SIGTUPLE TECHNOLOGIES PRIVATE LIMITED
    Inventors: Shreepad Potadar, Dheeraj Mundhra, Abhishek Shukla, Ragbu G, Amrutha Muralidharan, Deepak Kapoor, Vijay Muralidharan, Nivedita Muthusubramanian, Bharath Cheluvaraju, Apurv Anand, Tathagato Rai Dastidar, Rohit Kumar Pandey
  • Publication number: 20200211192
    Abstract: The present disclosure provides method and system for generating a structure map for retinal images. The system receives one or more retinal images and extracts or more structures in the retinal images. The system identifies one or more gradable retinal images among the one the retinal images. The system identifies one or more structure types and condition states in each of identified gradable retinal images based on extracted one or more structures and information associated with pre-learnt structures in pre-stored gradable retinal images using a Convolution Neural Network (CNN). The CNN is trained using information associated with pre-learnt structures in pre-stored gradable retinal images. The system generates structure map indicating one or more structure types for the gradable retinal images.
    Type: Application
    Filed: December 23, 2019
    Publication date: July 2, 2020
    Applicant: SIGTUPLE TECHNOLOGIES PRIVATE LIMITED
    Inventors: Maroof Ahmad, Tathagato Rai Dastidar
  • Publication number: 20200209221
    Abstract: Disclosed herein is method and system for evaluating semen quality. Plurality of images of stained semen sample are captured and analyzed for eliminating unusable images. Further, visible objects in the images are extracted and classified into sperm objects and non-sperm objects. The sperm objects are further classified into normal/abnormal sperm objects based on morphological characteristics of sperm objects, and a differential count of normal/abnormal sperm objects is determined. Subsequently, an aggregate count of the non-sperm objects is determined. Finally, a sperm quality index, indicative of quality of the semen sample, is computed based on morphological characteristics of sperm objects, differential count of normal/abnormal sperm objects, aggregate count of non-sperm objects and total motility estimate of semen sample.
    Type: Application
    Filed: November 24, 2017
    Publication date: July 2, 2020
    Applicant: Sigtuple Technologies Private Limited
    Inventors: Karan DEWAN, Rahul Borule, Bharath Cheluvaraju, Tathagato Rai Dastidar, Apurv Anand
  • Publication number: 20200211191
    Abstract: The present disclosure discloses a method and system for detecting disorders in retinal images. The method comprises, receiving one or more retinal images. Then, identifying one or more gross pathologies and extracting one or more patches around the one or more gross pathologies. Further, assigning confidence value to each of the one or more patches and classifying each of the one or more patches as belonging to a label of the set of labels. Further, computing a histogram for each label of the set of labels. Further, generating, a confidence vector for the corresponding retinal image. Further, generating a feature vector by combining the confidence vector generated for each of the one or more retinal images. A value of the feature vector determines the presence and grade of disorder.
    Type: Application
    Filed: November 27, 2017
    Publication date: July 2, 2020
    Applicant: Sigtuple Technologies Private Limited
    Inventor: Ameya JOSHI
  • Patent number: 10699417
    Abstract: Embodiments of present disclosure discloses system and method for acquisition of optimal images of object in multi-layer sample. Initially, images for FOV of multi-layer sample comprising objects are retrieved. Each of images are captured by varying focal depth of image capturing unit associated with system. Further, objects associated with multi-layer sample in FOV are identified. For identification, cumulative foreground mask of FOV is obtained based on adaptive thresholding performed on foreground image of FOV. Based on contour detection performed on cumulative foreground mask of FOV, object masks, corresponding to objects, is obtained for identifying objects. Further, sharpness of each of images associated with each of object masks is computed. Based on sharpness, optimal images from images for each of objects is selected for acquisition of optimal images of objects in multi-layer sample.
    Type: Grant
    Filed: October 3, 2017
    Date of Patent: June 30, 2020
    Assignee: Sigtuple Technologies Private Limited
    Inventors: Bharath Cheluvaraju, Apurv Anand, Rohit Kumar Pandey, Tathagato Rai Dastidar, Abdul Aziz, Apoorva Jakalannanavar Halappa Manjula
  • Publication number: 20200090340
    Abstract: Embodiments of present disclosure discloses system and method for acquisition of optimal images of object in multi-layer sample. Initially, images for FOV of multi-layer sample comprising objects are retrieved. Each of images are captured by varying focal depth of image capturing unit associated with system. Further, objects associated with multi-layer sample in FOV are identified. For identification, cumulative foreground mask of FOV is obtained based on adaptive thresholding performed on foreground image of FOV. Based on contour detection performed on cumulative foreground mask of FOV, object masks, corresponding to objects, is obtained for identifying objects. Further, sharpness of each of images associated with each of object masks is computed. Based on sharpness, optimal images from images for each of objects is selected for acquisition of optimal images of objects in multi-layer sample.
    Type: Application
    Filed: October 3, 2017
    Publication date: March 19, 2020
    Applicant: SIGTUPLE TECHNOLOGIES PRIVATE LIMITED
    Inventors: Bharath CHELUVARAJU, Apurv ANAND, Rohit PANDEY, Tathagato Rai DASTIDAR, Abdul AZIZ, Apoorva JAKALANNANAVAR HALAPPA MANULA