mediapipe
Mediapipe facemesh vertices mapping
I am trying to use Google's Mediapipe face mesh in my custom graphic engine for a personal project. I found that there is a face mesh picture that indicates the mapping from the landmarks index to the face mesh location.
However, there are 486 landmarks in total, so it will take a while to manually figure out all the triangles' landmarks. Is there a vertices mapping file that I can use to load the vertices mapping from?
Something like:
[
[ 0, 267, 164],
[ 0, 164, 37],
[ 0, 37, 72],
...
]
Solution
So I found this in Mediapipe's source code.
https://github.com/google/mediapipe/blob/master/mediapipe/python/solutions/face_mesh_connections.py
The FACEMESH_TESSELATION frozenset in the code defines the point-to-point connection pair between all points. However, the connection pairs are not the same as the ones in the picture 
provided by Mediapipe. Some connections in the picture are not defined in the code, some connections in code are not defined in the picture. Nevertheless, it's good enough for my application, so I wrote a simple program to generate the vertice tuples from it. The result is in the given json string. You're welcome to copy it if it helps.
[
[127, 34, 139],
[ 11, 0, 37],
[232, 231, 120],
[ 72, 37, 39],
[128, 121, 47],
[232, 121, 128],
[104, 69, 67],
[175, 171, 148],
[118, 50, 101],
[ 73, 39, 40],
[ 9, 151, 108],
[ 48, 115, 131],
[194, 204, 211],
[ 74, 40, 185],
[ 80, 42, 183],
[ 40, 92, 186],
[230, 229, 118],
[202, 212, 214],
[ 83, 18, 17],
[ 76, 61, 146],
[160, 29, 30],
[ 56, 157, 173],
[106, 204, 194],
[135, 214, 192],
[203, 165, 98],
[ 21, 71, 68],
[ 51, 45, 4],
[144, 24, 23],
[ 77, 146, 91],
[205, 50, 187],
[201, 200, 18],
[ 91, 106, 182],
[ 90, 91, 181],
[ 85, 84, 17],
[206, 203, 36],
[148, 171, 140],
[ 92, 40, 39],
[193, 189, 244],
[159, 158, 28],
[247, 246, 161],
[236, 3, 196],
[ 54, 68, 104],
[193, 168, 8],
[117, 228, 31],
[189, 193, 55],
[ 98, 97, 99],
[126, 47, 100],
[166, 79, 218],
[155, 154, 26],
[209, 49, 131],
[135, 136, 150],
[ 47, 126, 217],
[223, 52, 53],
[ 45, 51, 134],
[211, 170, 140],
[ 67, 69, 108],
[ 43, 106, 91],
[230, 119, 120],
[226, 130, 247],
[ 63, 53, 52],
[238, 20, 242],
[ 46, 70, 156],
[ 78, 62, 96],
[ 46, 53, 63],
[143, 34, 227],
[123, 117, 111],
[ 44, 125, 19],
[236, 134, 51],
[216, 206, 205],
[154, 153, 22],
[ 39, 37, 167],
[200, 201, 208],
[ 36, 142, 100],
[ 57, 212, 202],
[ 20, 60, 99],
[ 28, 158, 157],
[ 35, 226, 113],
[160, 159, 27],
[204, 202, 210],
[113, 225, 46],
[ 43, 202, 204],
[ 62, 76, 77],
[137, 123, 116],
[ 41, 38, 72],
[203, 129, 142],
[ 64, 98, 240],
[ 49, 102, 64],
[ 41, 73, 74],
[212, 216, 207],
[ 42, 74, 184],
[169, 170, 211],
[170, 149, 176],
[105, 66, 69],
[122, 6, 168],
[123, 147, 187],
[ 96, 77, 90],
[ 65, 55, 107],
[ 89, 90, 180],
[101, 100, 120],
[ 63, 105, 104],
[ 93, 137, 227],
[ 15, 86, 85],
[129, 102, 49],
[ 14, 87, 86],
[ 55, 8, 9],
[100, 47, 121],
[145, 23, 22],
[ 88, 89, 179],
[ 6, 122, 196],
[ 88, 95, 96],
[138, 172, 136],
[215, 58, 172],
[115, 48, 219],
[ 42, 80, 81],
[195, 3, 51],
[ 43, 146, 61],
[171, 175, 199],
[ 81, 82, 38],
[ 53, 46, 225],
[144, 163, 110],
[ 52, 65, 66],
[229, 228, 117],
[ 34, 127, 234],
[107, 108, 69],
[109, 108, 151],
[ 48, 64, 235],
[ 62, 78, 191],
[129, 209, 126],
[111, 35, 143],
[117, 123, 50],
[222, 65, 52],
[ 19, 125, 141],
[221, 55, 65],
[ 3, 195, 197],
[ 25, 7, 33],
[220, 237, 44],
[ 70, 71, 139],
[122, 193, 245],
[247, 130, 33],
[ 71, 21, 162],
[170, 169, 150],
[188, 174, 196],
[216, 186, 92],
[ 2, 97, 167],
[141, 125, 241],
[164, 167, 37],
[ 72, 38, 12],
[ 38, 82, 13],
[ 63, 68, 71],
[226, 35, 111],
[101, 50, 205],
[206, 92, 165],
[209, 198, 217],
[165, 167, 97],
[220, 115, 218],
[133, 112, 243],
[239, 238, 241],
[214, 135, 169],
[190, 173, 133],
[171, 208, 32],
[125, 44, 237],
[ 86, 87, 178],
[ 85, 86, 179],
[ 84, 85, 180],
[ 83, 84, 181],
[201, 83, 182],
[137, 93, 132],
[ 76, 62, 183],
[ 61, 76, 184],
[ 57, 61, 185],
[212, 57, 186],
[214, 207, 187],
[ 34, 143, 156],
[ 79, 239, 237],
[123, 137, 177],
[ 44, 1, 4],
[201, 194, 32],
[ 64, 102, 129],
[213, 215, 138],
[ 59, 166, 219],
[242, 99, 97],
[ 2, 94, 141],
[ 75, 59, 235],
[ 24, 110, 228],
[ 25, 130, 226],
[ 23, 24, 229],
[ 22, 23, 230],
[ 26, 22, 231],
[112, 26, 232],
[189, 190, 243],
[221, 56, 190],
[ 28, 56, 221],
[ 27, 28, 222],
[ 29, 27, 223],
[ 30, 29, 224],
[247, 30, 225],
[238, 79, 20],
[166, 59, 75],
[ 60, 75, 240],
[147, 177, 215],
[ 20, 79, 166],
[187, 147, 213],
[112, 233, 244],
[233, 128, 245],
[128, 114, 188],
[114, 217, 174],
[131, 115, 220],
[217, 198, 236],
[198, 131, 134],
[177, 132, 58],
[143, 35, 124],
[110, 163, 7],
[228, 110, 25],
[356, 389, 368],
[ 11, 302, 267],
[452, 350, 349],
[302, 303, 269],
[357, 343, 277],
[452, 453, 357],
[333, 332, 297],
[175, 152, 377],
[347, 348, 330],
[303, 304, 270],
[ 9, 336, 337],
[278, 279, 360],
[418, 262, 431],
[304, 408, 409],
[310, 415, 407],
[270, 409, 410],
[450, 348, 347],
[422, 430, 434],
[313, 314, 17],
[306, 307, 375],
[387, 388, 260],
[286, 414, 398],
[335, 406, 418],
[364, 367, 416],
[423, 358, 327],
[251, 284, 298],
[281, 5, 4],
[373, 374, 253],
[307, 320, 321],
[425, 427, 411],
[421, 313, 18],
[321, 405, 406],
[320, 404, 405],
[315, 16, 17],
[426, 425, 266],
[377, 400, 369],
[322, 391, 269],
[417, 465, 464],
[386, 257, 258],
[466, 260, 388],
[456, 399, 419],
[284, 332, 333],
[417, 285, 8],
[346, 340, 261],
[413, 441, 285],
[327, 460, 328],
[355, 371, 329],
[392, 439, 438],
[382, 341, 256],
[429, 420, 360],
[364, 394, 379],
[277, 343, 437],
[443, 444, 283],
[275, 440, 363],
[431, 262, 369],
[297, 338, 337],
[273, 375, 321],
[450, 451, 349],
[446, 342, 467],
[293, 334, 282],
[458, 461, 462],
[276, 353, 383],
[308, 324, 325],
[276, 300, 293],
[372, 345, 447],
[352, 345, 340],
[274, 1, 19],
[456, 248, 281],
[436, 427, 425],
[381, 256, 252],
[269, 391, 393],
[200, 199, 428],
[266, 330, 329],
[287, 273, 422],
[250, 462, 328],
[258, 286, 384],
[265, 353, 342],
[387, 259, 257],
[424, 431, 430],
[342, 353, 276],
[273, 335, 424],
[292, 325, 307],
[366, 447, 345],
[271, 303, 302],
[423, 266, 371],
[294, 455, 460],
[279, 278, 294],
[271, 272, 304],
[432, 434, 427],
[272, 407, 408],
[394, 430, 431],
[395, 369, 400],
[334, 333, 299],
[351, 417, 168],
[352, 280, 411],
[325, 319, 320],
[295, 296, 336],
[319, 403, 404],
[330, 348, 349],
[293, 298, 333],
[323, 454, 447],
[ 15, 16, 315],
[358, 429, 279],
[ 14, 15, 316],
[285, 336, 9],
[329, 349, 350],
[374, 380, 252],
[318, 402, 403],
[ 6, 197, 419],
[318, 319, 325],
[367, 364, 365],
[435, 367, 397],
[344, 438, 439],
[272, 271, 311],
[195, 5, 281],
[273, 287, 291],
[396, 428, 199],
[311, 271, 268],
[283, 444, 445],
[373, 254, 339],
[282, 334, 296],
[449, 347, 346],
[264, 447, 454],
[336, 296, 299],
[338, 10, 151],
[278, 439, 455],
[292, 407, 415],
[358, 371, 355],
[340, 345, 372],
[346, 347, 280],
[442, 443, 282],
[ 19, 94, 370],
[441, 442, 295],
[248, 419, 197],
[263, 255, 359],
[440, 275, 274],
[300, 383, 368],
[351, 412, 465],
[263, 467, 466],
[301, 368, 389],
[395, 378, 379],
[412, 351, 419],
[436, 426, 322],
[ 2, 164, 393],
[370, 462, 461],
[164, 0, 267],
[302, 11, 12],
[268, 12, 13],
[293, 300, 301],
[446, 261, 340],
[330, 266, 425],
[426, 423, 391],
[429, 355, 437],
[391, 327, 326],
[440, 457, 438],
[341, 382, 362],
[459, 457, 461],
[434, 430, 394],
[414, 463, 362],
[396, 369, 262],
[354, 461, 457],
[316, 403, 402],
[315, 404, 403],
[314, 405, 404],
[313, 406, 405],
[421, 418, 406],
[366, 401, 361],
[306, 408, 407],
[291, 409, 408],
[287, 410, 409],
[432, 436, 410],
[434, 416, 411],
[264, 368, 383],
[309, 438, 457],
[352, 376, 401],
[274, 275, 4],
[421, 428, 262],
[294, 327, 358],
[433, 416, 367],
[289, 455, 439],
[462, 370, 326],
[ 2, 326, 370],
[305, 460, 455],
[254, 449, 448],
[255, 261, 446],
[253, 450, 449],
[252, 451, 450],
[256, 452, 451],
[341, 453, 452],
[413, 464, 463],
[441, 413, 414],
[258, 442, 441],
[257, 443, 442],
[259, 444, 443],
[260, 445, 444],
[467, 342, 445],
[459, 458, 250],
[289, 392, 290],
[290, 328, 460],
[376, 433, 435],
[250, 290, 392],
[411, 416, 433],
[341, 463, 464],
[453, 464, 465],
[357, 465, 412],
[343, 412, 399],
[360, 363, 440],
[437, 399, 456],
[420, 456, 363],
[401, 435, 288],
[372, 383, 353],
[339, 255, 249],
[448, 261, 255],
[133, 243, 190],
[133, 155, 112],
[ 33, 246, 247],
[ 33, 130, 25],
[398, 384, 286],
[362, 398, 414],
[362, 463, 341],
[263, 359, 467],
[263, 249, 255],
[466, 467, 260],
[ 75, 60, 166],
[238, 239, 79],
[162, 127, 139],
[ 72, 11, 37],
[121, 232, 120],
[ 73, 72, 39],
[114, 128, 47],
[233, 232, 128],
[103, 104, 67],
[152, 175, 148],
[119, 118, 101],
[ 74, 73, 40],
[107, 9, 108],
[ 49, 48, 131],
[ 32, 194, 211],
[184, 74, 185],
[191, 80, 183],
[185, 40, 186],
[119, 230, 118],
[210, 202, 214],
[ 84, 83, 17],
[ 77, 76, 146],
[161, 160, 30],
[190, 56, 173],
[182, 106, 194],
[138, 135, 192],
[129, 203, 98],
[ 54, 21, 68],
[ 5, 51, 4],
[145, 144, 23],
[ 90, 77, 91],
[207, 205, 187],
[ 83, 201, 18],
[181, 91, 182],
[180, 90, 181],
[ 16, 85, 17],
[205, 206, 36],
[176, 148, 140],
[165, 92, 39],
[245, 193, 244],
[ 27, 159, 28],
[ 30, 247, 161],
[174, 236, 196],
[103, 54, 104],
[ 55, 193, 8],
[111, 117, 31],
[221, 189, 55],
[240, 98, 99],
[142, 126, 100],
[219, 166, 218],
[112, 155, 26],
[198, 209, 131],
[169, 135, 150],
[114, 47, 217],
[224, 223, 53],
[220, 45, 134],
[ 32, 211, 140],
[109, 67, 108],
[146, 43, 91],
[231, 230, 120],
[113, 226, 247],
[105, 63, 52],
[241, 238, 242],
[124, 46, 156],
[ 95, 78, 96],
[ 70, 46, 63],
[116, 143, 227],
[116, 123, 111],
[ 1, 44, 19],
[ 3, 236, 51],
[207, 216, 205],
[ 26, 154, 22],
[165, 39, 167],
[199, 200, 208],
[101, 36, 100],
[ 43, 57, 202],
[242, 20, 99],
[ 56, 28, 157],
[124, 35, 113],
[ 29, 160, 27],
[211, 204, 210],
[124, 113, 46],
[106, 43, 204],
[ 96, 62, 77],
[227, 137, 116],
[ 73, 41, 72],
[ 36, 203, 142],
[235, 64, 240],
[ 48, 49, 64],
[ 42, 41, 74],
[214, 212, 207],
[183, 42, 184],
[210, 169, 211],
[140, 170, 176],
[104, 105, 69],
[193, 122, 168],
[ 50, 123, 187],
[ 89, 96, 90],
[ 66, 65, 107],
[179, 89, 180],
[119, 101, 120],
[ 68, 63, 104],
[234, 93, 227],
[ 16, 15, 85],
[209, 129, 49],
[ 15, 14, 86],
[107, 55, 9],
[120, 100, 121],
[153, 145, 22],
[178, 88, 179],
[197, 6, 196],
[ 89, 88, 96],
[135, 138, 136],
[138, 215, 172],
[218, 115, 219],
[ 41, 42, 81],
[ 5, 195, 51],
[ 57, 43, 61],
[208, 171, 199],
[ 41, 81, 38],
[224, 53, 225],
[ 24, 144, 110],
[105, 52, 66],
[118, 229, 117],
[227, 34, 234],
[ 66, 107, 69],
[ 10, 109, 151],
[219, 48, 235],
[183, 62, 191],
[142, 129, 126],
[116, 111, 143],
[118, 117, 50],
[223, 222, 52],
[ 94, 19, 141],
[222, 221, 65],
[196, 3, 197],
[ 45, 220, 44],
[156, 70, 139],
[188, 122, 245],
[139, 71, 162],
[149, 170, 150],
[122, 188, 196],
[206, 216, 92],
[164, 2, 167],
[242, 141, 241],
[ 0, 164, 37],
[ 11, 72, 12],
[ 12, 38, 13],
[ 70, 63, 71],
[ 31, 226, 111],
[ 36, 101, 205],
[203, 206, 165],
[126, 209, 217],
[ 98, 165, 97],
[237, 220, 218],
[237, 239, 241],
[210, 214, 169],
[140, 171, 32],
[241, 125, 237],
[179, 86, 178],
[180, 85, 179],
[181, 84, 180],
[182, 83, 181],
[194, 201, 182],
[177, 137, 132],
[184, 76, 183],
[185, 61, 184],
[186, 57, 185],
[216, 212, 186],
[192, 214, 187],
[139, 34, 156],
[218, 79, 237],
[147, 123, 177],
[ 45, 44, 4],
[208, 201, 32],
[ 98, 64, 129],
[192, 213, 138],
[235, 59, 219],
[141, 242, 97],
[ 97, 2, 141],
[240, 75, 235],
[229, 24, 228],
[ 31, 25, 226],
[230, 23, 229],
[231, 22, 230],
[232, 26, 231],
[233, 112, 232],
[244, 189, 243],
[189, 221, 190],
[222, 28, 221],
[223, 27, 222],
[224, 29, 223],
[225, 30, 224],
[113, 247, 225],
[ 99, 60, 240],
[213, 147, 215],
[ 60, 20, 166],
[192, 187, 213],
[243, 112, 244],
[244, 233, 245],
[245, 128, 188],
[188, 114, 174],
[134, 131, 220],
[174, 217, 236],
[236, 198, 134],
[215, 177, 58],
[156, 143, 124],
[ 25, 110, 7],
[ 31, 228, 25],
[264, 356, 368],
[ 0, 11, 267],
[451, 452, 349],
[267, 302, 269],
[350, 357, 277],
[350, 452, 357],
[299, 333, 297],
[396, 175, 377],
[280, 347, 330],
[269, 303, 270],
[151, 9, 337],
[344, 278, 360],
[424, 418, 431],
[270, 304, 409],
[272, 310, 407],
[322, 270, 410],
[449, 450, 347],
[432, 422, 434],
[ 18, 313, 17],
[291, 306, 375],
[259, 387, 260],
[424, 335, 418],
[434, 364, 416],
[391, 423, 327],
[301, 251, 298],
[275, 281, 4],
[254, 373, 253],
[375, 307, 321],
[280, 425, 411],
[200, 421, 18],
[335, 321, 406],
[321, 320, 405],
[314, 315, 17],
[423, 426, 266],
[396, 377, 369],
[270, 322, 269],
[413, 417, 464],
[385, 386, 258],
[248, 456, 419],
[298, 284, 333],
[168, 417, 8],
[448, 346, 261],
[417, 413, 285],
[326, 327, 328],
[277, 355, 329],
[309, 392, 438],
[381, 382, 256],
[279, 429, 360],
[365, 364, 379],
[355, 277, 437],
[282, 443, 283],
[281, 275, 363],
[395, 431, 369],
[299, 297, 337],
[335, 273, 321],
[348, 450, 349],
[359, 446, 467],
[283, 293, 282],
[250, 458, 462],
[300, 276, 383],
[292, 308, 325],
[283, 276, 293],
[264, 372, 447],
[346, 352, 340],
[354, 274, 19],
[363, 456, 281],
[426, 436, 425],
[380, 381, 252],
[267, 269, 393],
[421, 200, 428],
[371, 266, 329],
[432, 287, 422],
[290, 250, 328],
[385, 258, 384],
[446, 265, 342],
[386, 387, 257],
[422, 424, 430],
[445, 342, 276],
[422, 273, 424],
[306, 292, 307],
[352, 366, 345],
[268, 271, 302],
[358, 423, 371],
[327, 294, 460],
[331, 279, 294],
[303, 271, 304],
[436, 432, 427],
[304, 272, 408],
[395, 394, 431],
[378, 395, 400],
[296, 334, 299],
[ 6, 351, 168],
[376, 352, 411],
[307, 325, 320],
[285, 295, 336],
[320, 319, 404],
[329, 330, 349],
[334, 293, 333],
[366, 323, 447],
[316, 15, 315],
[331, 358, 279],
[317, 14, 316],
[ 8, 285, 9],
[277, 329, 350],
[253, 374, 252],
[319, 318, 403],
[351, 6, 419],
[324, 318, 325],
[397, 367, 365],
[288, 435, 397],
[278, 344, 439],
[310, 272, 311],
[248, 195, 281],
[375, 273, 291],
[175, 396, 199],
[312, 311, 268],
[276, 283, 445],
[390, 373, 339],
[295, 282, 296],
[448, 449, 346],
[356, 264, 454],
[337, 336, 299],
[337, 338, 151],
[294, 278, 455],
[308, 292, 415],
[429, 358, 355],
[265, 340, 372],
[352, 346, 280],
[295, 442, 282],
[354, 19, 370],
[285, 441, 295],
[195, 248, 197],
[457, 440, 274],
[301, 300, 368],
[417, 351, 465],
[251, 301, 389],
[394, 395, 379],
[399, 412, 419],
[410, 436, 322],
[326, 2, 393],
[354, 370, 461],
[393, 164, 267],
[268, 302, 12],
[312, 268, 13],
[298, 293, 301],
[265, 446, 340],
[280, 330, 425],
[322, 426, 391],
[420, 429, 437],
[393, 391, 326],
[344, 440, 438],
[458, 459, 461],
[364, 434, 394],
[428, 396, 262],
[274, 354, 457],
[317, 316, 402],
[316, 315, 403],
[315, 314, 404],
[314, 313, 405],
[313, 421, 406],
[323, 366, 361],
[292, 306, 407],
[306, 291, 408],
[291, 287, 409],
[287, 432, 410],
[427, 434, 411],
[372, 264, 383],
[459, 309, 457],
[366, 352, 401],
[ 1, 274, 4],
[418, 421, 262],
[331, 294, 358],
[435, 433, 367],
[392, 289, 439],
[328, 462, 326],
[ 94, 2, 370],
[289, 305, 455],
[339, 254, 448],
[359, 255, 446],
[254, 253, 449],
[253, 252, 450],
[252, 256, 451],
[256, 341, 452],
[414, 413, 463],
[286, 441, 414],
[286, 258, 441],
[258, 257, 442],
[257, 259, 443],
[259, 260, 444],
[260, 467, 445],
[309, 459, 250],
[305, 289, 290],
[305, 290, 460],
[401, 376, 435],
[309, 250, 392],
[376, 411, 433],
[453, 341, 464],
[357, 453, 465],
[343, 357, 412],
[437, 343, 399],
[344, 360, 440],
[420, 437, 456],
[360, 420, 363],
[361, 401, 288],
[265, 372, 353],
[390, 339, 249],
[339, 448, 255]
]
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