Method and apparatus for coding and decoding image data
First Claim
1. An image coding method, comprising:
- detecting corresponding point data between key frames by image matching;
determining added information by which to invalidate at least a region of a reproduction image which is to be generated at a decoding side based on the corresponding point data; and
generating a coded data stream incorporating the corresponding point data and added information.
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Abstract
A matching processor detects correspondence information between key frames. A judging unit detects motion vectors from the correspondence information to determine variation of a field of view between the key frames. When variation of the field of view is sufficiently large, added information is generated related to the variation of the field of view. A stream generator generates a coded data stream by incorporating the added information. An intermediate image generator (for example, at a decoding side) detects the added information and trims edges of a generated intermediate image to account for the variation in the field of view, so that an unnatural invalidated region is cut out.
88 Citations
71 Claims
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1. An image coding method, comprising:
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detecting corresponding point data between key frames by image matching;
determining added information by which to invalidate at least a region of a reproduction image which is to be generated at a decoding side based on the corresponding point data; and
generating a coded data stream incorporating the corresponding point data and added information. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An image coding method, comprising:
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detecting corresponding point data between key frames by image matching; and
incorporating data of the key frames having at least a region that is invalidated, and the detected corresponding point data, so as to generate a coded data stream. - View Dependent Claims (8, 9, 10)
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11. An image coding method, comprising:
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detecting corresponding point data between key frames by image matching;
determining added information by which to invalidate at least a region of a reproduction image which is to be generated at a decoding side based on the detected corresponding point data, and incorporating the added information into the corresponding point data; and
generating a coded data stream comprising the corresponding point data. - View Dependent Claims (12, 13, 14, 15, 16)
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17. An image coding method, comprising:
generating a coded data stream incorporating corresponding point data between key frames and added information by which to invalidate at least a region of an intermediate image which is to be generated at a decoding side based on the corresponding point data. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
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25. An image coding method, including:
incorporating corresponding point data between key frames and data of key frames having at least a region that is invalidated, so as to generate a coded data stream. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32)
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33. An image coding method, including:
incorporating added information by which to invalidate at least part of region of a reproduction image which is to be generated at a decoding side based on corresponding point data between key frames, into the corresponding point data, so as to generate a coded data stream. - View Dependent Claims (34, 35, 36, 37, 38, 39, 40)
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41. A computer program executable by a computer, the program including the function of:
incorporating corresponding point data between key frames and added information by which to invalidate at least part of region of an intermediate image which is to be generated at a decoding side based on the corresponding point data, so as to generate a coded data stream.
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42. A computer program executable by a computer, the program including the function of:
incorporating corresponding point data between key frames and data of key frames whose at least part of region is invalidated, so as to generate a coded data stream.
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43. A computer program executable by a computer, the program including the function of:
incorporating added information by which to invalidate at least part of region of a reproduction image which is to be generated at a decoding side based on corresponding point data between key frames into the corresponding point data, so as to generate a coded data stream.
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44. An image coding apparatus, comprising:
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a matching processor which detects corresponding point data by image matching; and
a stream generator which generates a coded data stream by incorporating the corresponding point data and added information by which to invalidate at least a region of a reproduction image which is to be generated at a decoding side based on the corresponding point data. - View Dependent Claims (45, 46, 47, 48, 49)
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50. An image coding apparatus, comprising:
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a matching processor which detects corresponding point data between key frames by image matching; and
a stream generator which generates a coded data stream by incorporating data of the key frames having at least a region that is invalidated and the detected corresponding point data. - View Dependent Claims (51, 52, 53)
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54. An image coding apparatus, comprising:
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a matching processor which detects corresponding point data between key frames by image matching; and
a stream generator which generates a coded data stream by incorporating added information by which to invalidate at least part of a region of a reproduction image which is to be generated at a decoding side based on the detected corresponding point data, into the corresponding point data, so as to generate a coded data stream. - View Dependent Claims (55, 56, 57, 58, 59)
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60. An image coding apparatus, including:
a stream generator which generates a coded data stream by incorporating corresponding point data between key frames, and added information by which to invalidate at least part of region of an intermediate image which is to be generated at a decoding side based on the corresponding point data.
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61. An image coding apparatus, including:
a stream generator which generates a coded data stream by incorporating corresponding point data between key frames, and data of key frames whose at least part of region is invalidated.
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62. An image coding apparatus, including:
a stream generator which generates a coded data stream by incorporating added information by which to invalidate at least part of region of a reproduction image which is to be generated at a decoding side based on corresponding point data between key frames, into the corresponding point data.
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63. An image decoding method, comprising:
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acquiring a coded data stream of an image; and
generating an intermediate frame based on corresponding point data between key frames included in the acquired coded data stream, wherein the intermediate frame is generated in a manner that at least part of region thereof is invalidated. - View Dependent Claims (64, 65, 66)
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67. A computer program executable by a computer, the program comprising the functions of:
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acquiring a coded data stream of an image; and
generating an intermediate frame based on corresponding point data between key frames included in the acquired coded data stream, wherein the intermediate frame is generated in a manner that at least part of region thereof is invalidated.
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68. An image decoding apparatus, comprising:
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an image input unit which acquires a coded data stream of an image; and
an intermediate image generator which generates an intermediate frame based on corresponding point data between key frames included in the acquired coded data stream, wherein said intermediate image generator generates the intermediate frame in a manner that at least part of region thereof is invalidated. - View Dependent Claims (69, 70, 71)
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Specification