Color reduction in images of an interior of a human body
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G06K-009/00
A61B-001/00
H04N-001/64
G09G-005/02
A61B-001/04
출원번호
US-0765483
(2014-02-03)
등록번호
US-9936858
(2018-04-10)
국제출원번호
PCT/IL2014/050118
(2014-02-03)
국제공개번호
WO2014/118786
(2014-08-07)
발명자
/ 주소
Rainis, David
출원인 / 주소
ORPHEUS MEDICAL LTD
대리인 / 주소
Sughrue Mion, PLLC
인용정보
피인용 횟수 :
0인용 특허 :
6
초록▼
Apparatus and methods are described including apparatus (21) for capturing and processing a color video of an interior of a body of a human subject (20). The apparatus (21) includes a medical scope imaging device (22) configured to capture the video, and a medical image processing system (24), which
Apparatus and methods are described including apparatus (21) for capturing and processing a color video of an interior of a body of a human subject (20). The apparatus (21) includes a medical scope imaging device (22) configured to capture the video, and a medical image processing system (24), which includes a memory (26) and a processor (28). The memory (24) stores a color-reduction table (30), which specifies a plurality of low-occurrence-rate colors. The processor (28) is configured to use the color-reduction table (30) to identify for replacement one or more of the low-occurrence-rate colors in at least one of the frames of the video, and to replace one or more instances of each of the identified low-occurrence-rate colors with a replacement color. Other applications are also described.
대표청구항▼
1. Apparatus for capturing and processing a color video of an interior of a body of a human subject, the apparatus comprising: a medical scope imaging device configured to capture the video of the interior of the body of the human subject, the video including a plurality of frames; anda medical imag
1. Apparatus for capturing and processing a color video of an interior of a body of a human subject, the apparatus comprising: a medical scope imaging device configured to capture the video of the interior of the body of the human subject, the video including a plurality of frames; anda medical image processing system comprising: a memory in which a color-reduction table is stored, the color-reduction table specifying a plurality of low-occurrence-rate colors having respective rates of occurrence in sample color images of interiors of one or more human bodies, which rates of occurrence are lower than an occurrence-rate threshold; anda processor configured to: receive at least one of the frames of the video,use the color-reduction table to identify for replacement one or more of the low-occurrence-rate colors in the at least one of the frames, andreplace one or more instances of each of the identified low-occurrence-rate colors with a replacement color that is similar to the identified low-occurrence-rate color and has a rate of occurrence in the sample images that is higher than a rate of occurrence of the identified low-occurrence-rate color,wherein the occurrence-rate threshold is a first occurrence-rate threshold, andwherein the processor is further configured to: periodically calculate a score that is indicative of a degree to which the identified low-occurrence-rate colors have been replaced in the frame,in response to the score, identify a second occurrence-rate threshold that is less than the first occurrence-rate threshold, and identify for replacement at least some of the one or more of the low-occurrence-rate colors by ascertaining that respective rates of occurrence in the sample images of the at least some of the one or more of the low-occurrence-rate colors are lower than the second occurrence-rate threshold. 2. The apparatus according to claim 1, wherein the processor is configured to: using the color-reduction table, identify that a color of a first pixel of the at least one of the frames is a first one of the low-occurrence-rate colors that is to be replaced,replace the color of the first pixel with a replacement color that is similar to the color of the first pixel,after replacing the color of the first pixel, identify, using the color-reduction table, that a color of a second pixel of the at least one of the frames is a second one of the low-occurrence-rate colors that is to be replaced, andreplace the color of the second pixel with a replacement color that is similar to the color of the second pixel,wherein the second one of the low-occurrence-rate colors is a color selected from the group consisting of: the first one of the low-occurrence-rate colors, and a color that is distinct from the first one of the low-occurrence-rate colors. 3. The apparatus according to claim 1, wherein the processor is configured to iteratively process a plurality of pixels of the at least one of the frames by: (i) for a first one of the plurality of pixels, using the color-reduction table to ascertain whether a color of the pixel is to be replaced, and, if the color of the pixel is to be replaced, (a) identifying a replacement color for the color of the pixel, and (b) replacing the color of the pixel with the replacement color, and(ii) repeating step (i) for each of a remainder of the plurality of pixels. 4. The apparatus according to claim 1, wherein the sample images do not include any images of the interior of the body of the subject. 5. The apparatus according to claim 1, wherein each of at least 90% of the sample images includes an image acquired using the medical scope imaging device. 6. The apparatus according to claim 1, wherein the medical scope imaging device is a first medical scope imaging device of a given type, and wherein each of at least 90% of the sample images includes an image acquired using a second medical scope imaging device of the given type, which second medical scope imaging device is distinct from the first medical scope imaging device. 7. Apparatus for capturing and processing a color video of an interior of a body of a human subject, the apparatus comprising: a medical scope imaging device configured to capture the video of the interior of the body of the human subject, the video including a plurality of frames; anda medical image processing system comprising: a memory in which a color-reduction table is stored, the color-reduction table specifying a plurality of low-occurrence-rate colors having respective rates of occurrence in sample color images of interiors of one or more human bodies, which rates of occurrence are lower than an occurrence-rate threshold; anda processor configured to: receive at least one of the frames of the video,use the color-reduction table to identify for replacement one or more of the low-occurrence-rate colors in the at least one of the frames, andreplace one or more instances of each of the identified low-occurrence-rate colors with a replacement color that is similar to the identified low-occurrence-rate color and has a rate of occurrence in the sample images that is higher than a rate of occurrence of the identified low-occurrence-rate color,wherein the occurrence-rate threshold is a first occurrence-rate threshold, andwherein the processor is configured to use the color-reduction table to identify for replacement the one or more of the low-occurrence-rate colors at least by ascertaining that respective rates of occurrence in the sample images of the one or more of the low-occurrence-rate colors are lower than a second occurrence-rate threshold, the second occurrence-rate threshold being less than the first occurrence-rate threshold. 8. The apparatus according to claim 1, wherein the color-reduction table further specifies one or more colors that are not low-occurrence-rate colors. 9. The apparatus according to claim 1, wherein the processor is further configured to, following the replacing of the low-occurrence-rate colors in the frame, compress the frame. 10. The apparatus according to claim 1, wherein the color-reduction table further specifies respective replacement colors for the low-occurrence-rate colors. 11. A method of processing a color video, captured by a medical scope imaging device, of an interior of a body of a human subject, the video including a plurality of frames, the method comprising: receiving, by a medical image processing system, at least one of the frames of the video, the medical image processing system including (a) a processor, and (b) a memory in which a color-reduction table is stored, the color-reduction table specifying a plurality of low-occurrence-rate colors having respective rates of occurrence in sample color images of interiors of one or more human bodies, which rates of occurrence are lower than an occurrence-rate threshold;identifying for replacement, by the processor using the color-reduction table, one or more of the low-occurrence-rate colors in the at least one of the frames; andreplacing, by the processor, one or more instances of each of the identified low-occurrence-rate colors with a replacement color that is similar to the identified low-occurrence-rate color and has a rate of occurrence in the sample images that is higher than a rate of occurrence of the identified low-occurrence-rate color,wherein the occurrence-rate threshold is a first occurrence-rate threshold, andwherein the method further comprises: periodically calculating, by the processor, a score that is indicative of a degree to which the identified low-occurrence-rate colors have been replaced in the frame;in response to the score, identifying, by the processor, a second occurrence-rate threshold that is less than the first occurrence-rate threshold; andidentifying for replacement at least some of the one or more of the low-occurrence-rate colors by ascertaining that respective rates of occurrence in the sample images of the at least some of the one or more of the low-occurrence-rate colors are lower than the second occurrence-rate threshold. 12. The method according to claim 11, wherein the method comprises: identifying, by the processor using the color-reduction table, that a color of a first pixel of the at least one of the frames is a first one of the low-occurrence-rate colors that is to be replaced,replacing, by the processor, the color of the first pixel with a replacement color that is similar to the color of the first pixel,after replacing the color of the first pixel, identifying, by the processor using the color-reduction table, that a color of a second pixel of the at least one of the frames is a second one of the low-occurrence-rate colors that is to be replaced, andreplacing, by the processor, the color of the second pixel with a replacement color that is similar to the color of the second pixel,wherein the second one of the low-occurrence-rate colors is a color selected from the group consisting of: the first one of the low-occurrence-rate colors, and a color that is distinct from the first one of the low-occurrence-rate colors. 13. The method according to claim 11, wherein the method comprises iteratively processing, by the processor, a plurality of pixels of the at least one of the frames, by: (i) for a first one of the plurality of pixels, using the color-reduction table to ascertain whether a color of the pixel is to be replaced, and, if the color of the pixel is to be replaced, (a) identifying a replacement color for the color of the pixel, and (b) replacing the color of the pixel with the replacement color, and(ii) repeating step (i) for each of a remainder of the plurality of pixels. 14. The method according to claim 11, wherein the sample images do not include any images of the interior of the body of the subject. 15. The method according to claim 11, wherein each of at least 90% of the sample images includes an image acquired using the medical scope imaging device. 16. The method according to claim 11, wherein the medical scope imaging device is a first medical scope imaging device of a given type, and wherein each of at least 90% of the sample images includes an image acquired using a second medical scope imaging device of the given type, which second medical scope imaging device is distinct from the first medical scope imaging device. 17. A method of processing a color video, captured by a medical scope imaging device, of an interior of a body of a human subject, the video including a plurality of frames, the method comprising: receiving, by a medical image processing system, at least one of the frames of the video, the medical image processing system including (a) a processor, and (b) a memory in which a color-reduction table is stored, the color-reduction table specifying a plurality of low-occurrence-rate colors having respective rates of occurrence in sample color images of interiors of one or more human bodies, which rates of occurrence are lower than an occurrence-rate threshold;identifying for replacement, by the processor using the color-reduction table, one or more of the low-occurrence-rate colors in the at least one of the frames; andreplacing, by the processor, one or more instances of each of the identified low-occurrence-rate colors with a replacement color that is similar to the identified low-occurrence-rate color and has a rate of occurrence in the sample images that is higher than a rate of occurrence of the identified low-occurrence-rate color,wherein the occurrence-rate threshold is a first occurrence-rate threshold, andwherein using the color-reduction table to identify for replacement the one or more of the low-occurrence-rate colors in the at least one of the frames comprises ascertaining that respective rates of occurrence in the sample images of the one or more of the low-occurrence-rate colors are lower than a second occurrence-rate threshold, the second occurrence-rate threshold being less than the first occurrence-rate threshold. 18. The method according to claim 11, wherein the color-reduction table further specifies one or more colors that are not low-occurrence-rate colors. 19. The method according to claim 11, further comprising, following the replacing of the low-occurrence-rate colors in the frame, compressing the frame by the processor. 20. The method according to claim 11, wherein the color-reduction table further specifies respective replacement colors for the low-occurrence-rate colors.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (6)
DeLeeuw William C. (Hillsboro OR), Color reduction and conversion using an ordinal lookup table.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.