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1.发明公开公开(公告)号：US20230326374A1
公开(公告)日：2023-10-12
申请号：US17848604
申请日：2022-06-24
发明人： Nam Kyu PARK , Byung Seon MOON , Jae Mo GOH , Jin Pyo KIM , Young Il SEO , Eunah JOO , Jehyun LEE
CPC分类号： G09B23/303 , G09B23/12
摘要： An expectorated blood spatter generator includes: a compressed air ejection unit configured to eject compressed air through an air nozzle; and a blood ejection unit having one end connected to the air nozzle and ejecting blood through a blood nozzle by pressure of compressed air being ejected.
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公开(公告)号：US20220067937A1
公开(公告)日：2022-03-03
申请号：US17099023
申请日：2020-11-16
发明人： Nam Kyu PARK , Jae Mo GOH , Jin Pyo KIM , Young Il SEO , Eun Ah JOO , Je Hyun LEE , Sang Yoon LEE , Kyung Mi KIM
摘要： A method of calculating a bleeding site and a trajectory of a bloodstain scattered by impact includes: obtaining, by an electronic device calculating the bleeding site and the trajectory of the bloodstain scattered by impact, captured image information; analyzing the obtained captured image information, by the electronic device, and calculating a collision angle and measuring a direction angle of the bloodstain scattered by impact; calculating, by the electronic device, a coordinate value of the bleeding site by using a linear trajectory method; calculating, by the electronic device, a trajectory of a drop of blood based on the calculated coordinate value of the bleeding site by using a parabolic trajectory method considering gravity and air resistance; and displaying and outputting, by the electronic device, a linear trajectory of the drop of blood and a parabolic trajectory considering gravity and air resistance of the drop of blood on a 3D space.
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公开(公告)号：US20230060092A1
公开(公告)日：2023-02-23
申请号：US17518570
申请日：2021-11-03
发明人： Nam Kyu PARK , Byung Seon MOON , Jae Mo GOH , Jin Pyo KIM , Young Il SEO , Eun Ah JOO , Je Hyun LEE , Sang Yoon LEE
摘要： A developed impact mark analysis apparatus includes: an image acquisition unit configured to obtain at least one first image by photographing impact marks that are developed, and to obtain a second image of impact marks at a crime scene that are developed from evidence at the crime scene; an outliner configured to outline the at least one first image to obtain at least one first outline image, and to outline the second image to obtain a second outline image; a database configured to store the first outline image corresponding to related tool characteristic information; a matching unit configured to search the database for the first outline image determined to be similar to the second outline image and match them with each other; a display unit; and a user input unit.
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公开(公告)号：US20220354388A1
公开(公告)日：2022-11-10
申请号：US17362421
申请日：2021-06-29
发明人： Nam Kyu PARK , Byung Seon MOON , Jae Mo GOH , Jin Pyo KIM , Young Il SEO , Eun Ah JOO , Je Hyun LEE , Sang Yoon LEE
IPC分类号： A61B5/1174 , G01N3/08
摘要： A footprint generator capable of applying a constant force includes: a base plate in which a target surface may be on an upper surface of the base plate; a shoe mounting member that is apart from the upper surface of the base plate and capable of mounting a shoe; a driving unit that is apart from the upper surface of the base plate and capable of moving the shoe mounting member up and down; and a force measuring unit configured to measure an impact force when the shoe mounting member descends and contacts the shoe with the target surface to generate a footprint on the target surface.
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5.发明公开公开(公告)号：US20230419634A1
公开(公告)日：2023-12-28
申请号：US17939151
申请日：2022-09-07
发明人： Nam Kyu PARK , Byung Seon MOON , Jae Mo GOH , Jin Pyo KIM , Young Il SEO , Eun Ah JOO , Je Hyun LEE , Ho Yong YIE
CPC分类号： G06V10/225 , G06V10/7715 , G06V20/647
摘要： A method of comparing and determining three-dimensional (3D) identity of a tool mark includes: obtaining a 3D image of a suspect tool and a tool mark; extracting a contact portion of the suspect tool contributed to formation of the tool mark from the 3D image of the suspect tool; determining a matching area by comparing a shape of the contact portion 12 of the suspect tool 10 with a shape of the tool mark 20; and calculating a matching rate between the contact portion of the suspect tool and the tool mark.
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公开(公告)号：US20230405948A1
公开(公告)日：2023-12-21
申请号：US17897101
申请日：2022-08-26
发明人： Nam Kyu PARK , Byung Seon MOON , Jae Mo GOH , Jin Pyo KIM , Young Il SEO , Eun Ah JOO , Je Hyun LEE , Yong Jun KIM
IPC分类号： B29C71/00
CPC分类号： B29C71/0009
摘要： A method of enhancing a footwear impression formed on a porous surface using a potassium ferrocyanide solution for footwear impression enhancement includes: forming a porous surface sample by leaving footwear impressions into an object having a porous surface; preparing a potassium ferrocyanide solution for footwear impression enhancement; and applying the potassium ferrocyanide solution for footwear impression enhancement to the porous surface sample.
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7.发明公开公开(公告)号：US20230326363A1
公开(公告)日：2023-10-12
申请号：US17848575
申请日：2022-06-24
发明人： Nam Kyu PARK , Byung Seon MOON , Jae Mo GOH , Jin Pyo KIM , Young Il SEO , Eunah JOO , Jehyun LEE
IPC分类号： G09B19/00
CPC分类号： G09B19/00
摘要： A projected bloodstain generator includes: a blood supply capable of supplying blood by applying pressure; a blood vessel nozzle connector that is connected to the blood supply to transfer the blood and change a position for controlling the direction of blood ejection; and a blood vessel nozzle having one end connected to the blood vessel nozzle connector and the other end configured to eject blood by applied pressure.
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公开(公告)号：US20220383017A1
公开(公告)日：2022-12-01
申请号：US17366973
申请日：2021-07-02
发明人： Nam Kyu PARK , Byung Seon MOON , Jae Mo GOH , Jin Pyo KIM , Young Il SEO , Eun Ah JOO , Je Hyun LEE , Sang Yoon LEE , Ho Yong YIE
摘要： A developed fingerprint level determination apparatus includes: a fingerprint image acquisition unit configured to obtain at least two or more developed fingerprint images according to a fingerprint development technique; and a ridge level determination unit configured to check respective ridge development level information of the obtained fingerprint images and compare the respective ridge development level information with each other.
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9.发明申请公开(公告)号：US20210350157A1
公开(公告)日：2021-11-11
申请号：US17038363
申请日：2020-09-30
发明人： Nam Kyu PARK , Jae Mo GOH , Jin Pyo KIM , Young Il SEO , Eun Ah JOO , Je Hyun LEE , Sang Yoon LEE , Kyung Mi KIM , Gang Won BYUN
摘要： A method of determining footprint identity using a dimension reduction algorithm according to an embodiment includes: pre-processing to process three-dimensional (3D) image data about footprints of a first person and a second person and convert the 3D image data into one-dimensional (1D) data about the footprints of the first person and the second person; calculating a distribution of cross-correlation coefficients between two pieces of 1D data about footprints of the first person (SC: same footwear correlation) and a distribution of cross-correlation coefficients between the 1D data about the footprints of the first person and the second person (DC: difference footwear correlation); and calculating a likelihood ratio based on the SC and the DC to determine the degree of correspondence between the footprints of the first person and the second person.
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10.发明公开公开(公告)号：US20230326364A1
公开(公告)日：2023-10-12
申请号：US17848623
申请日：2022-06-24
发明人： Nam Kyu PARK , Byung Seon MOON , Jae Mo GOH , Jin Pyo KIM , Young Il SEO , Eunah JOO , Jehyun LEE
IPC分类号： G09B19/00
CPC分类号： G09B19/00
摘要： A cessation cast-off bloodstain pattern generator includes: a body unit including an impact surface that a tool may hit; a shaft unit located to rotate about an arbitrary axis by having one end mounted on the body unit and the other end equipped with the tool; and an impact force measuring unit that is located on the impact surface, and measures an impact force when a tool applied with blood to an experimental site rotates and collides with the impact surface and the blood falls off.
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